Page 3 While every precaution has been taken in the preparation of this book, Epson America, Inc. assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of Epson America, Inc.
Page 4: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS 1. Read all of these instructions and save them for later reference. 2. Follow all warnings and instructions marked on the product. 3. Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning the outside of the unit.
Page 5 10. If an extension cord is used with this product, make sure that the total of the ampere ratings on the products plugged into the extension cord do not exceed the extension cord ampere rating. Also, make sure that the total of all products plugged into the wall outlet does not exceed 15 amperes.
Page 6: Table Of Contents
Assembling the Printer......Testing the Printer........1-18 Connecting the Printer to Your Computer .
Page 7 Chapter 6 Maintenance Cleaning the Printer ....... . 6-2 Replacing the Ribbon ....... 6-4 Transporting the Printer.
Page 8 Chapter 9 Command Summary Using the Command Summary..... . . Commands in Numerical Order ..... . Commands Arranged by Topic.
Page 9: Introduction
Features In addition to the high-quality printing and ease of operation you have come to expect from Epson printers, the LQ-850 and LQ-1050 offer the following features: • Easy paper handling, featuring automatic single-sheet loading.
Page 10: Options
A variety of printer options is available for use with your printer. For detailed information on using these options, see Chapter 5. To locate or purchase options or supplies, call Epson Accessories, Inc. at 1800-873-7766. Single-bin and Double-bin Cut Sheet Feeders...
Page 11 Pull Tractor Unit (#7311/#7312) This option improves the performance of continuous paper handling. It is especially useful with continuous multi-part forms. Film Ribbon Cartridge (#7768/#7770) The optional film ribbon cartridge provides you with even higher quality printing than the standard fabric ribbon. Introduction 3...
Page 12: About This Manual
Chapter 5. About This Manual This user’s manual provides fully illustrated, step-by-step instructions on setting up and operating your Epson printer. Finding your way around Chapter 1 contains information on unpacking, setting up, testing, and connecting the printer. Be sure to read and follow these instructions first.
Page 13 At the back of this manual is a handy Quick Reference card that contains the information you are most likely to need. Note: The LQ-850 and LQ-1050 are basically the same printer except for their widths. Therefore, the illustrations in this guide show only the LQ-1050.
Page 14: Where To Get Help
Epson is confident that this policy will provide you with the assistance you need. Call the Epson Consumer Information Center at 1213-782-2600 for the following: The location of the nearest Epson dealer.
Page 15: Chapter 1 Setting Up The Printer
Attaching the Paper Guide......Testing the Printer........1-18 Plugging in the Printer .
Page 16: Unpacking The Printer
Unpacking the Printer Checking the Parts When you unpack the printer, make sure that you have all the parts shown below and that none have been damaged. Cross-head screwdriver Setting Up the Printer...
Page 17: Removing The Protective Materials
The printer is protected during shipping by two locking brackets, two locking tabs, and a print head protector. These protective items must be removed before you turn on the printer. After removing these items, store them with the other packing material in case you ever need to transport your printer.
Page 18 2. Remove any pieces of white packing material you find inside the printer. 3. Remove the print head protector. 4. Use the cross-head screwdriver that came with the printer to remove the two red screws. Setting Up the Printer...
Page 19 5. Slide the print head to the middle of the printer. Setting Up the Printer...
Page 20 6. Remove the left and right locking tabs. 7. Attach the printer cover unit. Setting Up the Printer...
Page 21 8. Close the paper guide cover. WARNING: Be sure to remove all protective materials before you turn on the printer. Setting Up the Printer...
Page 22: Choosing A Place For The Printer
There are several important things to consider when selecting a place to set up your printer. Keep the following in mind: Place the printer on a flat, hard, stable surface. A soft surface, • such as a padded counter or carpeted area, will block the ventilation slots and may cause overheating.
Page 23 The stand should be able to support at least twice the weight of the printer. Never use a stand that supports the printer at an angle of more than 15 degrees from horizontal. With a cut sheet feeder, your printer must be kept level.
Page 24: Assembling The Printer
Assembling the Printer After you’ve decided on the best place to set up your printer, the next step is to install the platen knob. Installing the Platen Knob You use the platen knob to feed the paper manually in the event of a paper jam or other paper feeding problem.
Page 25: Installing The Ribbon Cartridge
2. Push firmly on the platen knob until it fits against the printer case. CAUTION: Do not use the platen knob to adjust the position of the paper. This interferes with the automatic paper loading system and may cause a paper jam.
Page 26 3. Slide the print head to the middle of the printer. CAUTION: Never move the print head while the printer is turned on because this can damage the printer. Also, if you have been using the printer, the print head may be hot;...
Page 27 (The LQ-850 ribbon cartridge has only one handle.) Push the cartridge firmly into position, making sure the plastic hooks fit into the slots inside the printer. Note: Press lightly on both ends of the cartridge to make sure the plastic hooks are properly seated.
Page 28 Also check that the ribbon is not twisted or creased. Make sure the paper thickness lever on the left is set to position 2. See The Paper Thickness Lever in Chapter 2 if you are printing on special paper. Setting Up the Printer 1-14...
Page 29: Attaching The Paper Guide
Attach the paper guide using the following procedure. 1. Place the paper guide on the printer as shown below. Make sure the back edge of the guide is even with the back of the printer. Setting Up the Printer 1-15...
Page 30 2. Raise the paper guide until it locks into place. Note: To lower the paper guide, lift up slightly to release it from its locked position; then gently lower it down onto the printer. Setting Up the Printer 1-16...
Page 31 Attach the printer cover by fitting the hooks on the cover into the notches at the front of the printer and tilting the cover back into place. Close the paper guide cover. 1-17 Setting Up the Printer...
Page 32: Testing The Printer
Before running the self test, you need to connect the printer to an electrical outlet and load a sheet of paper. Plugging in the Printer 1.
Page 33: Running The Self Test
CAUTION: Never run the self test using paper that is narrower than 8.27 inches (210 mm) on the LQ-850 or 14 inches (360 mm) on the LQ-1050. This prevents the print head from printing directly onto the platen, which can damage the print head.
Page 34 2. Push the paper release lever back to the single-sheet position. 3. While holding down the LINE FEED button (draft mode) or FORM FEED button (Letter Quality mode), turn on the printer. The printer beeps several times and the POWER and PAPER OUT lights come on. 1-20...
Page 35 4. Move the left edge guide to the right or left until it rests against the triangular guide mark on the paper guide 5. Adjust the right edge guide to match the width of your paper. Setting Up the Printer 1-21...
Page 36 6. Next, slide a sheet of paper down between the edge guides until it meets resistance. After about two seconds, the printer loads the paper automatically and then starts the self test. A list of DIP switch settings is printed first, followed by a series of characters.
Page 37 7. When you wish to stop the test, press the ON LINE button. If the test results are not satisfactory, see Solving Any Self Test Problems later in this chapter for possible causes and solutions. Note: To resume the test, press the ON LINE button once more. 1-23 Setting Up the Printer...
Page 38 8. To end the self test, press the FORM FEED button to eject any paper that is still loaded. Then turn off the printer. WARNING: After turning the power off, always wait at least five seconds before turning it back on. Turning the power on and off rapidly can damage the printer.
Page 39 ¦ } ~ ! ” # $ % & ’ ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I Setting Up the Printer...
Page 40 / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X +.-. Note: When using the optional cut sheet feeder, the first page of the self test printout is slightly different. For details, see The Cut Sheet Feeder in Chapter 5. Setting Up the Printer 1-26 :;<=>?@ABCDEFGHIJKLMNOP :;<=>?@ABCDEFGHIJKLMN...
Page 41: Solving Any Self Test Problems
Solving Any Self Test Problems If the self test does not print properly, check the control panel and the print head area. If paper is jammed, turn off the printer. Then remove the paper using the platen knob and load a new sheet. See that all packing material and shipping restraints have been removed from inside the printer.
Page 42 Set the paper thickness lever to match the thickness of your paper. See The Paper Thickness Lever in Chapter 2. The print head is damaged. Stop printing and contact your Epson dealer to have the print head replaced.
Page 43 (continued) Dots are missing in random positions. If the printer still does not print the self test correctly, contact your Epson dealer. Solution There is either too much slack in the ribbon or the ribbon has come loose and caught on something.
Page 44: Connecting The Printer To Your Computer
See The Interface Boards in Chapter 5. The parallel interface is the printer’s default setting. If you need to use the built-in serial interface, be sure to change the DIP switch setting as shown in Chapter 3.
Page 45: The Parallel Interface
The Parallel Interface Connect the parallel interface cable as described below: 1. Make sure that both your printer and computer are turned off. 2. Plug the cable connector securely into the printer. 3. Squeeze the wire clips together until they lock in place on either side of the connector.
Page 46: The Serial Interface
The Serial Interface Connect the serial interface cable as described below: 1. Make sure both your printer and computer are turned off. 1-32 Setting Up the Printer...
Page 47 2. Plug the connector securely into the printer. WARNING: Do not plug more than one interface cable into the printer at once. This may damage the printer. 3. Plug the other end of the cable into the computer. Setting Up the Printer...
Page 48: Setting Up Your Application Software
Because the family of Epson printers shares a great many commands, you can use an application program even if it does not list the LQ-850 or LQ-1050 on its printer selection menu. If the printer is not listed, choose one of the following printers. They are listed in order of preference.
Page 49: Chapter 2 Paper Handling
Chapter 2 Paper Handling Using Single Sheets ....... . . 2-2 Loading Paper .
Page 50: Using Single Sheets
Your printer can accommodate single sheets up to a maximum width of 10.1 inches (257 mm) on the LQ-850 and 14.3 inches (364 mm) on the LQ-1050. If you do most of your printing on single sheets, you may find it more convenient to install the optional cut sheet feeder.
Page 51 3. Turn on the printer. The POWER and PAPER OUT lights come on. Note: Do not insert paper in the printer before turning on the printer. 4. Move the left edge guide until it rests against the guide mark. (You may want to change this position later, depending on the margin settings of your application program.)
Page 52 Slide the paper down between the edge guides until it meets resistance and the PAPER OUT light goes off. After about two seconds, the printer loads the paper automatically, and is set ON LINE so that it can accept data from your computer.
Page 53: Reloading During Printing
If you need to adjust the position of the paper after it is loaded, use the micro-adjustment feature described in Adjusting the Loading Position in Chapter 3. To eject the paper, press the ON LINE button to take the printer off line; then press the LOAD/EJECT button. You are now ready to begin printing.
Page 54: Using Continuous Paper
Its low-profile design takes up little space and can handle paper up to 10.0 inches or 254 mm wide on the LQ-850 and up to 16.0 inches or 406 mm wide on the LQ-1050. Positioning Your Continuous Paper Supply An important consideration for achieving smooth and trouble-free paper feeding is the position of your paper supply.
Page 55: Loading Continuous Paper
Be sure to align the paper supply with the paper loaded in the tractor so that the paper feeds smoothly into the printer. Loading Continuous Paper 1. Be sure that the printer is turned off. 2. Pull the paper release lever forward to the continuous paper position.
Page 56 3. Open the paper guide cover and remove the paper guide. 4. Attach the paper rest. Paper Handling...
Page 57 5. Release the sprocket units by pulling the sprocket lock levers forward as shown below. 6. Slide the left sprocket unit all the way to the left and press the lever back to lock it in place. Paper Handling 2-9...
Page 58 Note: The first printable column position is indicated by the mark shown in the illustration below. 7. Slide the right sprocket unit so that it roughly matches the width of your paper, but do not lock it. 2-10 Paper Handling...
Page 59 8. Move the paper support midway between the two sprocket units. 9. Open both sprocket covers. CAUTION: Make sure that the first sheet of paper has a clean, straight edge before inserting it into the printer. 2-11 Paper Handling...
Page 60 10. Fit the first four holes in the paper over the pins of both sprockets. 11. Close the sprocket covers. 2-12 Paper Handling...
Page 61 12. Slide the right sprocket unit to a position where the paper is straight and has no wrinkles. Then lock it in place. 13. Reattach the paper guide on top of the paper as shown below. Then slide the edge guides together so that they meet at about the middle of the paper’s width.
Page 62 2. If you are using special paper, see The Paper Thickness Lever later in this chapter for details. 14. Close the paper guide cover and turn on the printer. 15. Press the LOAD/EJECT button to feed paper to the loading position.
Page 63 16. Press the ON LINE button to set the printer on line so that it can accept data. The printer remembers the loading position and advances each page to the same position. If you need to adjust the loading position, use the micro-adjustment feature.
Page 64: Switching Between Continuous And Single Sheets
Switching to Single Sheets To switch from continuous paper to single sheets, follow the steps below. 1. If the printer is on line, press the ON LINE button to set the printer off line. Open the paper guide cover. 2-16...
Page 65 2. Tear off any outgoing sheets. If the paper has advanced past the print head, you need to press the FORM FEED button to advance your document to a point where it can be easily removed. CAUTION: Make sure you tear off your printed document before pressing the LOAD/EJECT button.
Page 66 3. Press the LOAD/EJECT button to feed the continuous paper backward out of the printer and into the standby position. The paper is still attached to the tractor but no longer in the paper path. The PAPER OUT light comes on when the paper is completely out of the paper path.
Page 67 4. Push the paper release lever back to the Single-Sheet Position 5. Lift the paper guide until it locks into place. Paper Handling 2-19...
Page 68 6. Move the left edge guide until it rests against the guide mark. Adjust the right edge guide to match the width of your paper. 7. Close the paper guide cover. Paper Handling 2-20...
Page 69: Switching Back To Continuous Paper
8. Slide a sheet of paper down between the edge guides until it meets resistance and the PAPER OUT light goes off. After about two seconds, the printer loads the paper automatically and sets itself ON LINE. Switching Back to Continuous Paper It is also easy to switch back to printing with continuous paper.
Page 70 1. Open the paper guide cover. 2. Lift up slightly on the paper guide and then lower it onto the back of the printer. 2-22 Paper Handling...
Page 71 3. Slide the left and right edge guides together so that they meet at about the middle of the continuous paper's width. 4. Pull the paper release lever forward to the continuous paper position, then close the paper guide cover. 2-23 Paper Handling...
Page 72 5. Press the LOAD/EJECT button to feed the continuous paper to the loading position. Then, press the ON LINE button to set the printer on line so that it can accept data. 2-24 Paper Handling...
Page 73: Printing On Special Paper
Printing on Special Paper In addition to printing on single sheets and continuous paper, your printer can also print on a wide variety of paper types, including multi-part forms, labels,, and envelopes. If you are printing preprinted or multi-part forms or labels, it is recommended that you use the optional pull tractor.
Page 74 Note: For normal use, set the paper thickness lever to position 2 on the scale. If you have installed the optional film ribbon cartridge, and you want to use the single sheets or continuous paper, set the paper thickness lever to position 1. The following table gives you general guidelines for selecting the right paper thickness lever position for the type of paper you are using:...
Page 75 To change the paper thickness setting, follow these steps. 1. Make sure that the printer is turned off. Then remove the printer cover. WARNING: If the printer has just been in use, the print head may be hot. Be careful not to touch it.
Page 76 2. Select the paper thickness you want according to the table below. For normal use, the lever should always be set to position 2 on the scale. 3. Reattach the printer cover unit. Paper Handling 2-28...
Page 77: Multi-Part Forms
Multi-part Forms With the built-in tractor unit, your printer can print on continuous multi-part forms. You can use multi-part forms that have up to four parts including the original. Make sure you set the paper thickness lever to the proper position.
Page 78: Labels
Also, never use the short tear-off function with labels. (Be sure to set DIP switch 2-7 to OFF.) If a label does become stuck in the printer, contact your Epson dealer. Because labels are especially sensitive to temperature and humidity, always use them under normal operating conditions.
Page 79 To eject labels from the printer, follow these steps: 1. Open the paper guide cover and remove the paper guide. 2. Tear off the sheet of Labels at the perforation behind the push tractor. Paper Handling 2-31...
Page 80: Envelopes
3. Press the ON LINE button to set the printer off line. Then press the FORM FEED button to eject the labels. Envelopes You can feed envelopes individually using the single-sheet loading feature. Before loading envelopes, adjust the position of the paper thickness lever according to the Paper Thickness Lever table earlier in this chapter.
Page 81 When manually feeding an envelope, you may have to push it down slightly to get it to feed properly. After about two seconds, the envelope loads automatically. CAUTION: The printable area for envelopes is shown on the next page. The print head must not go past the left or right edge of the envelope or other thick paper.
Page 82 CAUTION: Envelope printing is available only at normal temperature (41°F to 95°F or 5°C to 35°C). To make sure that the printing fits within the printable area, always print a test sample using a normal sheet of paper before printing on envelopes.
Page 83: Chapter 3 Using The Printer
Chapter 3 Using the Printer Operating the Control Panel ......Selecting Typestyles Character Fonts ........3-6 Character Spacing .
Page 84: Operating The Control Panel
Operating the Control Panel The indicator lights give you the current status of the printer. The buttons and paper handling functions let you control many of the printer settings. Lights Using the Printer MULTI-PART (orange) On when the paper thickness lever is set to position 4 or higher.
Page 85 Press this button to put the printer on line or to take it off line. When the printer is on line, the ON LINE light is on and the printer can receive and print data from the computer.
Page 86 CONDENSED Press this button to turn the condensed mode on and off. The orange indicator light is on when the printer is in the condensed mode. In the condensed mode, all characters are printed at approximately 60 percent of their normal width.
Page 87: Other Control Panel Features
Other Control Panel Features The control panel of your printer also gives you access to several special functions. Self test: Micro-adjustment: Data dump: Input buffer control: To enable or disable the input buffer, press the Draft, SuperDraft, and Letter Quality self test functions are built into the printer.
Page 88: Selecting Typestyles
Character Fonts The printer has ten built-in fonts: draft, Epson Roman, Epson Sans Serif, Epson Courier, Epson Prestige, Epson Script, OCR-B, OCR-A, Epson Orator, and Epson Orator-S. You can select eight of the built-in fonts using SelecType. When you press the FONT button, the printer scrolls through the built-in fonts on the control panel.
Page 89 To select a font, press the FONT button until the corresponding orange indicator light (or lights) come on. When the top light is on, draft is selected. When the top two lights are on, Epson Roman is selected. When only the second light is on, Epson Sans Serif is selected.
Page 90 Epson Roman Epson Sans Serif Epson Courier Epson Prestige Epson Script Using the Printer...
Page 91 Note: The OCR-B and OCR-A fonts can be read by an optical character reader (also known as a document reader or image scanner) for input into another computer. Print enhancements, such as bold and underlining, cannot be read by a character reader. Epson Orator Epson Orator-S Using the Printer...
Page 92: Character Spacing
To select character spacing, press the PITCH button until the indicator light of the desired character spacing comes on. The table below shows the character spacings available with each font. Font Draft Epson Roman Epson Sans Serif Epson Courier Epson Prestige Epson Script OCR-B OCR-A...
Page 93: Condensed Mode
T h i s i s 1 0 c p i p r i n t i n g . This is condensed 10 cpi This is 12 cpi printing. This is condensed 12 cpi printing, printing. Using the Printer 3-11...
Page 94: Setting The Dip Switches
Setting the DIP Switches The printer has two sets of DIP switches located on the back panel. By changing the settings of these switches, you can control various printer features, such as the character set and page length. The new settings become effective when you turn on, reset, or initialize the printer.
Page 95: The Dip Switch Tables
DIP Switch 2 SW Description Page length selection Interface type/parity Baud rate 2-7 Short tear-off mode 2-8 Auto line feed See tables 1, 4 Graphics Italics Unidir. Bidir. See table 5 See table 2 See table 3 Using the Printer 3-13...
Page 96: Using The Printer
See Selecting an International Character Set later in this chapter for other character sets. International character sets are selectable only when DIP switch 14 is off. Table 2 Interface/parity selection Interface type Parity SW 2-3 SW 2-4 — Parallel Serial Even Serial Serial None 3-14 Using the Printer...
Page 97 1200 bps 300 bps Table 4 Graphics character sets Graphics character set PC 437 (United States) Epson Extended Graphics PC 850 (Multilingual) PC 860 (Portugal) PC 863 (Canada-French) PC 865 (Norway) Graphics character sets are selectable only when the DIP switch 1-4 is on.
Page 98: The Dip Switch Functions
Either setting can be overridden by a software command (ESC U). To achieve precise vertical alignment without the slower printing speed caused by unidirectional printing, see your Epson dealer for adjustment of your bidirectional print settings. Tear-off mode When DIP switch 2-7 is on, the short tear-off mode is on.
Page 99 SuperDraft mode, the printing speed will temporarily switch to normal draft speed until the enhancement is turned off. This allows you to use any print enhancement without canceling SuperDraft. Using the Printer 3-17...
Page 100: Page Length
ESC C 0. See the Command Summary in Chapter 9 for details. Note: If you are using the cut sheet feeder, the page length is automatically set when you run the printer’s self test. For details, see The Cut Sheet Feeder in Chapter 5.
Page 101: Skip Over Perforation
DIP switch 1-8 off (Skip over perforation off) DIP switch 1-8 on (Skip over perforation on) Using the Printer 3-19...
Page 102 Use skip over perforation only if your program does not provide these margins. The skip over perforation setting can be set to values other than one inch by using the ESC N command. See the Command Summary in Chapter 9 for details. Using the Printer 3-20...
Page 103: Adjusting The Loading Position
However, when you use micro-adjustment to change the loading position of single-sheet paper, the printer does not remember this position after the power is turned off. When the power is turned back on,, the loading position returns to its factory setting.
Page 104: Using Micro-Adjustment
Using Micro-adjustment 1. Make sure that the printer is turned on and that either a single sheet or continuous paper is ready to be loaded. 2. A single sheet loads automatically. For continuous paper, press the LOAD/EJECT button to feed paper to the loading position.
Page 105 Once you have adjusted your paper, the printer remembers this new loading position. When the printer receives data, the MULTI-PART light stops flashing.
Page 106: Using Short Tear-Off
When you are finished printing, the short tear-off feature automatically feeds the perforation of the continuous paper to the tear-off edge of the printer cover so that you can tear off the last sheet. When you resume printing, the paper feeds backward to the loading position.
Page 107 When you have finished printing, and if the perforation is at the top of form position, the printer automatically feeds the perforation of the continuous paper to the tear-off edge of the printer cover. You can then tear off the page using the tear-off edge as shownbelow.
Page 108: Adjusting The Tear-Off Position
If the paper’s perforation does not meet the tear-off edge, follow these steps to adjust the tear-off position. 1. Make sure the printer feeds the paper to the tear-off position after printing the document. The MULTI-PART light should begin blinking, indicating that you can now use the micro-adjustment feature to make fine adjustments to the tear-off position.
Page 109 FORM FEED button to feed the paper forward or the LINE FEED button to feed it backward. You can now tear off your document from the perforation and resume printing. The printer remembers this new tear-off position even after the printer is turned off and on again. Using the Printer 3-27...
Page 110: Selecting An International Character Set
You can select one of eight international character sets by changing the DIP switch settings. Whenever the printer is turned on, reset, or initialized, the character set selected by the DIP switches becomes the default character set.
Page 111 Once you set the DIP switches for a certain character set, that set remains valid even after you turn off, reset, or initialize the printer. Software co mmands, however, override the DIP switches settings until the commands are canceled or the printer is turned off, reset, or initialized. ASCII code hex...
Page 112: Choosing A Character Set
Graphics Note: To change the setting of a DIP switch, first turn off the printer, change the DIP switch, and then turn the printer back on. You can also select the italics character set or a graphics character set using the ESC t command. See the Comman d Summary in Chapter 9.
Page 113 When DIP switch 1-4 is on, the graphics character set is determined by the settings of DIP switches, 1-1,1-2, and 1-3. Graphics character set PC 437 (United States) Epson Extended Graphics PC 850 (Multilingual) PC 860 (Portugal) PC 863 (Canada-French) PC 865 (Norway) The graphics character sets are also called code page tables.
Page 114: Using The Data Dump Mode
1. Make sure that the printer is loaded with either single-sheet or continuous paper. 2. If the printer is on, switch it off; then hold down the FORM FEED and LINE FEED buttons at the same time you turn on the printer.
Page 115 4. To turn off the data dump mode press ON LINE to take the printer off line. Then turn off the printer. (You can also cancel the data dump mode by sending an INIT signal from the computer.)
Page 116 The chart below interprets the first eight codes. codes Command ESC @ 1B 40 ESC R0 1B 52 00 ESCt1 1B 74 01 Using the Printer 3-34 Function Initialize printer Select USA character set Select PC 437 (Epson Extended Graphics)
Page 117: Chapter 4 Software And Graphics
Defining Your Characters ......Sending Information to Your Printer ....
Page 118: Enhancing Your Printing
Enhancing Your Printing You can obtain a wide variety of printing effects with your printer from changing the number of characters per inch to using special effects on selected words and phrases. This section gives you a sampling of the features you may select with your software.
Page 119: Character Spacing
Character Spacing To add greater variety to your documents, the printer has three cpi spacings, as well as proportional spacing. Each one can be selected with a software command. See Chapter 8 for a table that shows which character spacings are available for each font.
Page 120: Character Size
See the Print Size and Character Width commands in Chapter 9. Character Size In addition to the basic cpi spacings and proportional spacing, the printer offers three other modes that can change the size of your printing. These modes are double-wide, double-high, and condensed.
Page 121: Special Effects And Emphasis
See the Print Size and Character Width commands in Chapter 9. Special Effects and Emphasis The printer offers two ways of emphasizing text and also allows you to use underlining, superscripts, subscripts, and italics. You can directly control these features using software commands. Many application programs can also produce some of these effects.
Page 122: Italic Printing
Emphasized and double-strike printing Emphasized and double-strike printing can give words and phrases added prominence. In emphasized mode, the printer prints each character twice as the print head moves across the paper, with the dots in the second pass printed slightly to the right of the first pass.
Page 123 Underlining, strike-through, and overlining The underline, strike-through, and overline modes are useful for highlighting selected text. This feature can be used to score spaces, subscripts, and superscripts without a break You can choose from a variety of line styles, including single, double, broken, or continuous.
Page 124: Selecting Typestyles With Master Select
Selecting Typestyles With Master Select Your printer has a special ESCape code called Master Select that allows you to choose many combinations of these cpi, 12 cpi, proportional spacing, condensed, emphasized, double- strike, double-wide, italics, and underline. For more information on sending ESCape codes to your printer, see Chapter 9.
Page 125 12cpi Double-strike 16 Double-wide n = 49 After calculating the value of n, you use the Master Select command to send the value to the printer. ASCII: Decimal: Hexadecimal: The print quality and font must be set separately, using SelecType or the ESC x and ESC k commands.
Page 126: Graphics
The quickest and easiest way to print graphics on your printer is to use a commercial graphics program. With such programs you usually create an image on your monitor, then give a command to send the image to the printer.
Page 127: The Print Head
In order for the dots to overlap vertically, the pins in the print head are in more than one column, but the intelligence of the printer handles the timing of pin firings so that the effect is that of 24 pins arranged in a single vertical column.
Page 128 Your printer also forms its images with patterns of dots, as many as 360 dots per inch, horizontally and 360 dots per inch, vertically. The images printed by this printer can, therefore, be as finely detailed as the ones at the beginning of this section.
Page 129 256 possible patterns you want. This numbering system is shown below: To fire any one pin, you send its number to the printer. To fire more than one pin at the same time, add up the numbers of the pins and send the total.
Page 130: The Graphics Command
Your printer has one command that allows you to use any of the 11 graphics options. The format of the command is: Software and Graphics...
Page 131: Column Reservation Numbers
The graphics command requires more than one number to specify how many columns to reserve because one line can use thousands of columns, but the printer does not use numbers larger than 255 in decimal. Therefore the graphics mode command uses two numbers, n1 and n2, for reserving columns.
Page 132: A Simple Graphics Program
96 and n2 should be 6 because 1632 = 96 + (6 x 256). The printer interprets the number of bytes specified by n1 and n2 as graphics data, no matter what codes they are. This means that you must be sure to supply enough bytes of graphics data or the printer will stop and wait for more data and will seem to be locked.
Page 133: Designing Your Own Graphics
1/8th of an inch high and less than 1/4th of an inch wide. The actual pattern that the printer prints on the paper is, of course, made up of dots that overlap each other both vertically and horizontally.
Page 134 Write the assigned values of the pins next to your design, then total the values for each column of dots. These totals are the values that you send to the printer as graphics data to print the design. Below is the same grid divided into three sections to make the data calculation easier.
Page 135 Below is the BASIC program that prints the design shown on the previous pages. Note that the data numbers in lines 80 through 140 are the same numbers that are at the bottom of each section in the last illustration. The WIDTH statement in line 10 is for IBM PC BASIC;...
Page 136: Individual Graphics Option Commands
Because of a difference in line spacing increments, the shape of graphics figures produced different from the output from the Software and Graphics 4-20 ESC*0 ESC*1 E S C * 2 E S C * 3 the printer with an 8-pin option is program on a 9-pin printer. same format...
Page 137 The reassigning command The LQ-850 and LQ-1050 have a command that allows you to change the graphics option assigned to any of the four individual graphics option commands. The command looks like this: The letters represents the command that you wish to change the assignment for (K, L, Y, or Z) and m is the number of the graphics option that you want to assign to it.
Page 138: User-Defined Characters
User-defined Characters With this printer, it is possible to define and print characters of your own design. You can design an entirely new alphabet or typeface, create special characters for use as mathematical or scientific symbols, or create graphic patterns with user-defined characters to serve as building blocks for larger designs.
Page 139 Design grids To design a character you use a grid that is 24 dots high-one dot for each pm on the printer’s print head. The width of the character matrix depends on the character set in use. For draft characters, the grid is nine dots wide, for Letter Quality it is 29 dots wide, and for proportional characters it is 37 dots wide.
Page 140: Defining Your Characters
Now you translate the dot pattern you’ve created on paper to a numeric format so you can send the data to your printer. Every dot has an assigned value. Each vertical column (which has a maximum of 24 dots) is first divided into three groups of eight dots.
Page 141 This manual uses decimal numbers because the program examples are written in BASIC and everyone is familiar with decimals. The data you send to your printer, however, must be in the form (binary, decimal, hexadecimal) that you can use with your programming language.
Page 142: Sending Information To Your Printer
The command your printer uses to define characters is one of the most complex in its repertoire. The format of the command is this: The ESC &...
Page 143 Since it takes three bytes to specify all the dots in one vertical column, your printer expects x 3 bytes of data to follow and the right space is specified by...
Page 144 The information about the actual character design (which is contained in the DATA statements at the end of the program) is sent to the printer in the loop between lines 50 and 70. Note: When defining Letter Quality or proportional characters, put a WIDTH statement in your program to prevent carriage return and line feed codes from interfering with your definitions.
Page 145: Printing User-Defined Characters
Run the program to see the printout below: As you can see, both sets of characters (the @ from the original characters in ROM that the printer normally uses and the alternative character you defined) remain in the printer available for your use.
Page 146: Copying Rom Characters To Ram
Since no other characters are in the printer’s user- defined RAM, there is nothing else to print. Other characters sent to the printer do not even print as spaces; it’s as if they were not sent at all.
Page 147: Letter Quality Characters
Letter Quality Characters If you select Letter Quality printing with the ESC xl command, you can design user-defined characters using up to 29 columns of the Letter Quality/Proportional grid. The dot columns are spaced closer together horizontally than draft dot columns (the horizontal dot spacing is 1/360th of an inch as opposed to 1/120th of an inch for draft characters).
Page 148: Mixing Print Styles
You can use each of the three userdefined character modes (draft, Letter Quality, and proportional) in combination with most of your printer’s various print styles. For instance, emphasized mode works with userdefined characters. The characters you design are enhanced to give this printing effect.
Page 149 Keep in mind that user-defined characters are stored in RAM, which is not permanent memory. When the printer power is turned off or the printer is initialized with the INIT signal, the user-defined characters are lost.
Page 150: Chapter 5 Using The Printer Options
Paper Handling ........5-8 Testing the Printer in the Cut Sheet Feeder Mode ..5-12 Loading Envelopes .
Page 151: The Cut Sheet Feeder
The illustrations in this section show the single-bin feeder for the LQ-1050. You use the other sheet feeders in the same way. Using the Printer Options Double bin...
Page 152: Installation
Installation 1. Assemble the cut sheet feeder following the instructions provided in its accompanying manual. 2. Make sure the printer is turned off. Then remove the printer cover unit and the paper guide. Using the Printer Options...
Page 153 3. Push the paper release lever back to the single-sheet position. 4. Remove the paper tension unit by pressing the levers back to open the mounting latches. At the same time, lift up on the front of the unit. Using the Printer Options...
Page 154 5. Tilt the cut sheet feeder slightly forward to fit the notches at the base of the unit over the pins on the printer. Then tilt the feeder back until it rests on top of the printer. 6. Separate the paper guide cover (transparent gray plastic) from the printer cover.
Page 155 7. Raise the cut sheet feeder’s paper path guide and attach the printer cover. Using the Printer Options...
Page 156 8. Close the paper path guide. 9. Turn on the cut sheet feeder mode by setting DIP switch 1-7 to on. Using the Printer Options...
Page 157: Paper Handling
Note: Always make sure that the printer is turned off before changing the DIP switch settings. 10. Turn on the printer. Paper Handling 1. Make sure that the cut sheet feeder mode is turned on with DIP switch 1-7. 2. Pull the left and right paper set levers of the selected bin all the way forward until the paper guides retract and lock open to allow for paper loading.
Page 158 4. Take a stack of paper and fan it as shown. This keeps the paper from sticking and ensures that only one sheet feeds at a time. Tap the side and bottom of the paper on a flat surface to even the stack. Using the Printer Options...
Page 159 Then adjust the right paper guide until the paper is held firmly, but not so tightly that it causes the paper to buckle. Make sure the paper can move up and down freely. 5-10 Using the Printer Options...
Page 160 When the printer is on line, press the LOAD/EJECT button to change between bin 1 and bin 2. The printer beeps once if you select bin 1 and twice for bin 2. (You can also select the bin with the ESC EM software command.>...
Page 161: Testing The Printer In The Cut Sheet Feeder Mode
The steps below are for a self test in draft mode. 1. Make sure that the printer is turned off and a stack of paper is inserted in the selected bin of the cut sheet feeder. Check that the cut sheet feeder mode is selected and the paper release lever is pushed to the rear.
Page 162 2. While holding down the LINE FEED button, turn on the printer. (For Letter Quality mode, press the FORM FEED button instead of the LINE FEED button.) A part of the printout of the first sheet is shown below. The printout of the second sheet is similar to the original self test described in Chapter 1.
Page 163: Loading Envelopes
Note: To resume the test, press the ON LINE button once more. 4. To end the self test when paper is loaded, press the LOAD/EJECT button to eject the paper. Then turn off the printer. Loading Envelopes You can print on plain, bond, or air mail envelopes. The cut sheet feeder can hold up to 25 plain or bond envelopes, or 30 air mail envelopes.
Page 164 2. Push down on the two front levers on the left and right paper guides until they lock into position. 5-15 Using the Printer Options...
Page 165: Operating The Cut Sheet Feeder
Operating the Cut Sheet Feeder After stacking paper in the cut sheet feeder, turn on the printer and make sure that the ON LINE light is on. When the printer is on line, a new sheet of paper loads automatically whenever a printable character or line feed command is sent to the printer.
Page 166 Control panel operation To operate the cut sheet feeder from the control panel when the printer is in the cut sheet feeder mode, first make sure that the printer is off line. LINE FEED...
Page 167: Using Continuous Paper
Line feed; advances the paper n/l80th of an inch Software is not effective while the printer is off line. Make sure that the printer is on line if you wish to control the cut sheet feeder using software commands. Using Continuous Paper...
Page 168 2. Install the cut sheet feeder as described in this section, making sure that DIP switch 1-7 is set to on. 3. If a single sheet is still in the printer, eject it by pressing the LOAD/EJECT button. 5-19 Using the Printer Options...
Page 169 4. To switch from the cut sheet feeder to continuous paper, pull the paper release lever forward to the continuous paper position. You do not need to change the setting of DIP switch 1-7. Using the Printer Options 5-20...
Page 170 5. Raise the paper path guide until it clicks open. This guide directs the flow of continuous paper out of the front of the printer. 6. Press the LOAD/EJECT button to load continuous paper. Note: With the paper release lever forward and the printer off...
Page 171 2. Close the paper path guide and set the printer on line. 3. Push the paper release lever back to the single-sheet position. Using the Printer Options 5-22...
Page 172: Loading Single Sheets
1 is selected by the LOAD/EJECT button or with the ESC EM software command. 2. Press the ON LINE button to take the printer off line. 3. Align the single sheet to be fed with the mark on the left paper guide.
Page 173: Removing The Cut Sheet Feeder
Removing the Cut Sheet Feeder 1. Turn off the printer and remove any paper stacked in the cut sheet feeder. 2. Open the cut sheet feeder’s paper path guide and remove the printer cover.
Page 174 3. Tilt the back of the cut sheet feeder forward to release its notches from the printer’s pins. Then lift up and remove the cut sheet feeder. 5-25 Using the Printer Options...
Page 175 4. Replace the paper tension unit as shown below. Tilt the unit back and position the back notches on the unit over the rear mounting pins of the printer. Press the levers open as you tilt the unit toward you until the front latches click in place over the front mounting pins located behind the paper bail.
Page 176 Removal of the cut sheet feeder is now completed. Be sure to store the removed cut sheet feeder in its original box and packing materials. 5-27 Using the Printer Options...
Page 177: The Pull Tractor
You can use the following pull tractors with the printers: Printer Pull tractor LQ-850 #7311 LQ-1050 #7312 Installation 1. Turn off the printer and remove the printer cover unit and paper guide. 2. Install the paper rest. Using the Printer Options 5-28...
Page 178 At the same time, lift up the front of the unit. 4. Hold the pull tractor with the knob to the right. Fit the rear notches on the tractor over the rear mounting pins of the printer, as shown in the following illustration. Using the Printer Options...
Page 179 5. Tilt the tractor unit toward you until the front latches click in place over the front mounting pins of the printer. 6. Pull the paper release lever all the way forward to the continuous paper position. CAUTION: You cannot use the short tear-off function with the pull tractor.
Page 180: Paper Handling
When you have paper loaded, turn on the printer. 2. Make sure that the printer is off line and then press the LOAD/EJECT button to load the paper. Next, press the FORM FEED button to advance the paper one page so that you can fit the paper onto the pull tractor.
Page 181 Never use the platen knob to feed the paper CAUTION: while the printer is turned on. If you need to adjust the loading position, use the micro-adjustment function described in Chapter 3. 3. Open the sprocket covers of the pull tractor and pull the sprocket lock levers toward you to release them.
Page 182 (There is only one paper support on the LQ-850.) 5. Fit the holes of the paper over the tractor pins on the sprocket units, adjusting the position of the sprocket units as necessary. 5-33 Using the Printer Options...
Page 183 If the paper does not fit exactly onto the tractor pins or if the paper buckles, press in on the pull tractor knob and turn it in the desired direction until the paper fits properly. Close the sprocket covers. 5-34 Using the Printer Options...
Page 184 9. Slide the rollers on the paper bail bar so they are evenly distributed across the width of your paper, making sure that the right and left rollers are at both edges of your paper. Using the Printer Options 5-35...
Page 185 11. Install the pull tractor cover. 12. Press the ON LINE button to set the printer on line. Note: Do not use the short tear-off feature with the pull tractor.
Page 186: Removing The Pull Tractor
Removing the Pull Tractor 1. Remove the pull tractor cover and the paper guide. 2. Tear off any printed sheets or extra blank sheets. 5-37 Using the Printer Options...
Page 187 L O A D / E J E C T s e v e r a l p a g e s a t a t i m e m a y r e s u l t i n a p a p Using the Printer Options 5-38...
Page 188 4. Remove the continuous paper from the push tractor unit. Then, push the paper release lever backward. 5. Turn off the printer. Then, pressing the tabs on the pull tractor, tilt it back and lift it off the printer. 5-39...
Page 189 6. Replace the paper tension unit as shown below. Tilt the unit back and position the back notches on the unit over the rear mounting pins of the printer. Press the levers open as you tilt the unit forward until the front latches click in place over the front mounting pins located behind the paper bail.
Page 190: The Interface Boards
You can increase the printer’s data buffering capacity by an additional 32 KB (about 10 pages). If you are unsure whether you need an optional interface or would like to know more about interfaces, contact your Epson dealer. Using the Printer Options 5-41...
Page 191: Compatible Interfaces
Compatible Interfaces The following is a list of Epson interfaces that are compatible with your printer. Interface number #8143 #8148 #8165 C823032 C823021 Note: Some interfaces may not be available in all countries. All Epson interfaces have the Epson name printed on them. If the...
Page 192 Removing the upper case 1. Turn off the power to the printer and the computer. Next, unplug the power cord from the electrical outlet and disconnect the interface cable from the printer. WARNING: High voltages are present inside the printer when the power is on.
Page 193 3. Using a cross-head screwdriver, remove the two retaining screws: one located at the front of the printer, the other at the back near the printer’s fan. 4. Detach the upper case by pressing in on the two retaining clips inside the front of the printer.
Page 194 5. Partially raise the upper case. Look under the control panel and notice the clip that secures the control panel to the upper case. Now reach under the control panel and release the front clip. 6. Slip the control panel back through the upper case. Using the Printer Options 5-45...
Page 195 8. Remove the shield plate above the parallel interface by pressing in on the plastic clips located at the back of the plate. (The following illustration shows a rear view of the printer.) Using the Printer Options 5-46...
Page 196 10. Remove the screw labeled CG (chassis ground) from the main board. The ground connector screw is located next to the power cable connector. Then set it aside in a safe place. Using the Printer Options 5-47...
Page 197 Installing the board There are two basic types of interface board designs, which slightly change the way they are installed in the printer. The frame ground wire is attached for one type and not attached for the other. This difference does not affect the operation of the interface in any way.
Page 198 3. Reattach the power cable, making sure that the small fins on the white plastic clip are toward the inside of the printer. Take extra care to see that the holes of the clip are aligned with the pins of the connector.
Page 199 4. Fit the interface board under the built-in tractor aligning the board with the CN2 connector on the main board and with the interface port of the back of the printer. Carefully insert the pins on the optional interface board into the mating connector on the main board.
Page 200 (If you are installing the #8l43 board, see the next section, #8143 New Serial Interface.) Carefully place the interface next to the printer as shown below. Use the CG screw to connect the round end of the FG wire to the main board.
Page 201 3. Reattach the power cable, making sure that the small fins on the white plastic clip are toward the inside of the printer. Take extra care to see that the holes of the clip are aligned with the pins of the connector.
Page 202 5. Secure the board with three of the screws provided. Attaching the upper case 1. Fit the rear hinges of the upper case into the openings in the lower case; then partially lower the upper case. 5-53 Using the Printer Options...
Page 203 Press down on the front of the control panel until the front clip snaps into place. 3. Close the upper case. Make sure you press down on the front of the case until it locks into place. 5-54 Using the Printer Options...
Page 204: 8143 New Serial Interface
#8143 New Serial Interface If you are using an optional interface, it may be necessary for you to alter the communication protocol of the printer or the computer so that they can communicate properly. In most cases, you should use the information in your optional interface manual or your computer’s manual to match the computer with the interface.
Page 205 Handshaking timing When the vacant area for data in the input buffer drops to 256 bytes, the printer outputs an X-OFF code or sets the DTR flag to 1 (MARK) indicating that it cannot receive data. Once the vacant area for data in the buffer recovers to 528 bytes, the printer outputs an X-ON code or sets the DTR flag to 0 (SPACE) indicating that it is again ready to receive data.
Page 206: Chapter 6 Maintenance
Maintenance Cleaning the Printer ....... . Replacing the Ribbon .......
Page 207: Cleaning The Printer
To keep your printer operating at its best you should clean it thoroughly several times a year. Follow the steps below: 1. Make sure that the printer is turned off. Then remove the paper guide and any installed option 6-2 Maintenance...
Page 208 Be careful not to get water on the printer mechanism or electronic components. Do not use a hard or abrasive brush. Do not spray the inside of the printer with lubricants; unsuitable oils can damage the mechanism. Contact your Epson dealer if you think lubrication is needed. Maintenance 6-3...
Page 209: Replacing The Ribbon
For everyday operations, use the standard ribbon. Do not use ribbons designed for nine-pin printers. 1. Make sure that the printer is turned off. Then remove the printer cover unit. WARNING: If the print head is hot, let it cool before attempting to replace the ribbon.
Page 210 2. To remove the ribbon cartridge, grip it by the two black handles and lift the cartridge straight up and out of the printer. (Ribbon cartridges #7753 and #7768 have only one handle.) 3. Slide the print head to the middle of the printer.
Page 211 4. To remove slack in the new ribbon, turn the ribbon-tightening knob in the direction of the arrow. 5. Push the new ribbon cartridge firmly into position, making sure the plastic hooks fit into the slots, as shown below. Note: Press lightly on both sides of the cartridge to make sure the hooks are properly inserted.
Page 212 6. Use a pointed object, such as a ballpoint pen, to guide the ribbon between the print head and ribbon guide while you turn the ribbon-tightening knob to help feed the ribbon into place. Be careful not to puncture the ribbon. 7.
Page 213 8. Reattach the printer cover unit. Maintenance...
Page 214: Transporting The Printer
Transporting the Printer Before you transport your printer some distance, carefully replace it in the original box and packing materials, as described below. 1. Turn off the printer, then remove any installed options. 2. Unplug the power cord from the electrical outlet and disconnect the interface cable between the printer and the computer.
Page 215 5. Slide the print head to the middle of the printer. While holding the paper bail bar open, reattach the left and right locking tabs. 6. Slide the print head all the way to the left. Using the enclosed cross-head screwdriver, reattach the two red screws.
Page 216 7. Insert the print head protector as shown below. 8. Reattach the printer cover unit. WARNING: When you carry the printer, never hold it by the compartment cover on the right side. If this cover comes off, you may drop the printer.
Page 217 9. Fit the printer back into the white packing material and then back into its original box. Maintenance 6-12...
Page 218: Chapter 7 Troubleshooting
Chapter 7 Troubleshooting Problems and Solutions ......7-2 Power Supply........7-4 Printing .
Page 219: Problems And Solutions
Problems and Solutions This chapter discusses problems you may encounter while operating your printer and their likely solutions. If you are having difficulty achieving the desired printing result, first locate the problem in the table below and then see the appropriate page for the solution.
Page 220: Troubleshooting
Using the cut sheet feeder, the paper does not feed properly. Using the pull tractor with the push tractor, continuous paper does not feed properly. Using an optional interface, the printer does not operate properly. See 7-27 See 7-31 See 7-35...
Page 221: Power Supply
If the voltages do not match, unplug 'the printer and contact your Epson dealer immediately. Do not reconnect the power cord to an electrical outlet. The problem may lie with the electrical outlet.
Page 222: Printing
Move the paper a little to the left. The PAPER OUT light should go off. The printer may be out of paper. Load more paper into the printer. See Chapter 2. Troubleshooting 7-5...
Page 223 Turn off the printer, check for paper jams or other problems, then turn the printer back on. If the printer still does not print correctly, contact your Epson dealer. The print head is overheated. Wait a few minutes; the printer resumes printing automatically when the print head cools.
Page 224 See Chapter 2. The print head is damaged. Stop printing and contact your Epson dealer to have the printer repaired. There is either too much slack in the ribbon or the ribbon has come loose and gotten caught on something.
Page 225 Chapter 9 for information on using fonts. The wrong character table is selected. If your application program is capable of sending control codes, specify the Epson Extended Graphics character table using ESC t 1. See Chapter 9. You can also select the graphics character table by changing a DIP switch setting.
Page 226 Problem Printed characters are not what you expected (continued). Graphic characters or lines are being printed instead the selected italic characters. The wrong international characters are being printed. Solution The wrong character table is selected. If your application program is capable of sending control codes, specify the italic character table using ESC t 0.
Page 227 Also, if your application program is capable of sending control codes, you can cancel the condensed mode by sending the DC2 code to the printer. See Chapter 9. The software may not be properly installed for your printer. Use the program’s setup (or install) procedure to check the printer settings and reset as needed.
Page 228 Text is printed with an extra blank line in between. Solution Your printer and the computer may not be communicating correctly. Make sure that you are using the correct interface cable and that the communication protocol is correct. See your computer’s manual for more information.
Page 229 Use your application program to change the margin. In BASIC, enter either of the following statements: WIDTH LPRINT 255 WIDTH “LPT1” 255 If the printer still does not print properly, set the right margin to the maximum setting using ESC Q. See Chapter 9.
Page 230 2-1 and 2-2. See Chapter 3. If your program allows you to send control codes to the printer, specify page size by sending ESC C or ESC C 0. See Chapter 9. If this does not resolve the problem, check the page length set by your application software and adjust it if necessary.
Page 231 Problem The print position is not what you expected (continued). Skip over perforation is set, but the perforation fall does not in the center the skip. Troubleshooting 7-14 Solution The page length for continuous paper may be set incorrectly. Set DIP switches 2-1 and 2-2 to the correct positions for the page length you want.
Page 232: Problem Solution
Chapter 1. If the self test works properly, the printer is all right, and the problem probably lies in the computer, the software, or the cable. If the self test does not work, contact your Epson dealer. Solution The printer is usually set for bidirectional printing.
Page 233: Paper Handling
You may be trying to feed paper using one of the control panel buttons while the printer is on line (ON LINE light is on). Press the ON LINE button once to take the printer off line; then feed the paper. After feeding the paper, press the ON LINE button again to set the printer on line.
Page 234 Use only paper sizes that are within the specified range. Multi-part forms cannot be used with this printer’s single-sheet feeding system. See Chapter 8. The paper guide may not be attached, or it may not be in the correct position. When printing on single sheets, use the paper guide in its upright position.
Page 235 Troubleshooting 7-18 Solution The paper may have been between the edge guides before the printer was turned on. When loading single sheets, be sure that paper is not in the paper guide before you turn the printer on. The paper guide may not be attached, or it may not be in the correct position.
Page 236 You may be trying to feed paper using the control panel buttons while the printer is on line (ON LINE light on). Press the ON LINE button once to take the printer off line, then try feeding paper. After feeding paper, press the ON LINE button again to set the printer on line.
Page 237 Solution The paper supply may be obstructed by a cable or some other object. Make sure that the paper feeds smoothly into the printer. See Chapter 2. Your supply of continuous paper may be too far from the printer. Position your paper supply within 3 feet (1 meter) of the printer.
Page 238 The paper dimensions may exceed the specified limitations. Use only paper sizes that are within the specified range. Your printer can print on continuous multi-part forms consisting of 1 original and 3 copies. See Chapter 8. Skip over perforation may be interfering with your application program settings.
Page 239 Problem Continuous paper does not feed properly (continued). Skip over perforation does not function. Skip over perforation is set, but the perforation does not fall in the center of the skip. The loading position the paper shifts slightly while printing several pages.
Page 240 Your program may not be sending a form feed command to the printer. At the end of your program or the page, send a form feed (FF). If you are using BASIC, be sure to add a semicolon (;) after the FF code to...
Page 241 LOAD/EJECT button. Also, make sure that DIP switch 2-7 (short tear-off) is off. If a label does become jammed in the printer mechanism, see your Epson dealer for assistance. Pull the paper release lever forward to the continuous paper position, set the paper, then press the LOAD/EJECT button.
Page 242 Problem Switching between single sheets and continuous paper cannot be performed properly (continued). The paper release lever is correctly set continuous paper, but when the LOAD/EJECT button is pressed, the platen rotates backward and the paper comes off the sprockets. When the LOAD/EJECT button is pressed to load a single sheet from...
Page 243 One page of data may not have been sent to the printer. Finish the page by sending a form feed code (FF) to the printer or by sending enough line feed codes (LF) to advance the remainder of the page.
Page 244: Options
(only while the printer is on line). The printer may be off line. Press the ON LINE button to put the printer on line. The cut sheet feeder mode may be off. Set DIP switch 1-7 to on. If your program...
Page 245 Remove and reinstall the cut sheet feeder making sure that the mounting notches are properly mated with the pins on the printer. See Chapter 5. The cut sheet feeder may be out of paper. Load more paper in the cut sheet feeder’s bin.
Page 246 Problem Using the cut sheet feeder, the paper does not feed properly (continued). After a print command is sent from the computer, the platen rotates, but paper does not feed. The PAPER OUT light is on (continued). Two or more sheets feed at the same time.
Page 247 Options Problem Using the cut sheet feeder, the paper does not feed properly (continued). The paper feed is crooked. You tried to manually insert a single sheet, but instead paper was fed from the cut sheet feeder's bin. Troubleshooting 7-30 Solution The paper may be old or creased.
Page 248 Push down on the two front levers until they lock into position. See Chapter 5. The printer may be on line. Before using the control panel buttons to feed paper, always take the printer off line (ON LINE light out).
Page 249 The supply of paper may be too far from the printer. Position the paper supply so that it is less than three feet or one meter away. The paper may be caught on the edge guides.
Page 250 Problem Using the pull tractor with the push tractor, continuous paper does not feed properly (continued). Paper feed is crooked or the paper jams (continued). Several lines of space occur in the printout. Skip over perforation is set, but it does not work.
Page 251 Problem Using the pull tractor with the push tractor, continuous paper does not feed properly (continued). Skip over perforation is set, but the skip has shifted from the perforation, or the perforation does not fall in the center of the skip.
Page 252 You may be trying to use an interface with the wrong specification. Check the specifications to make sure that you can use the interface with this printer. See Chapter 5. The DIP switch settings may not be set correctly. Make sure that DIP switches 2-3...
Page 253 If the printer still does not operate properly after checking the above points, run a self test of the interface to make sure that there are no on-board defects. If any abnormality is found, contact your Epson dealer. Note: If you are still having problems after working through the...
Page 254: Chapter 8 Technical Specifications
Technical Specifications Printer Specifications ....... 8-2 Printing ......... 8-2 Paper..
Page 255: Printer Specifications
Printer Specifications Printing Print method: Print speed: Quality Characters per Inch SuperDraft Normal draft Letter Quality Printing direction: Line spacing: Paper feed speed: Technical Specifications 24-pin impact dot matrix Characters/second/line Bidirectional logic-seeking for text and graphics. Unidirectional for graphics. (Unidirectional can be selected with a DIP switch or by using the proper software command.)
Page 256 10, 12, 15 10, 12, 15 96 standard ASCII character set (including italic characters) 14 international character sets 1 Legal character set Epson Extended Graphics character set 5 graphics character sets Technical Specifications 8-3 Maximum printed characters LQ-850 LQ-1050 Family...
Page 257: Paper
6.54 x 3.62 inches (166 x 92 mm) No. 10 9.45 x 4.09 inches (240 x 104 mm) 2.5 x 0.94 inch (63.5 x 23.8 mm ) minimum LQ-1050 7.2 to 14.3 inches (182 to 364 mm) 7.2 to 14.3 inches (182 to 364 mm) 4.0 to 16.0 inches...
Page 258 Single sheet Printable area: Note: For the LQ-850, printing on paper from 9 to 10.1 inches wide increases the minimum right and left margins to 0.53 inches. Technical Specifications 8-5...
Page 259 Note: The minimum for the right and left margins increases to 0.98 inch (25.0 mm) when printing on IO-inch wide paper on the LQ-850 or on l6-inch wide paper on the LQ-1050. Note: Envelope printing is only available at normal operating conditions.
Page 260 Paper weight: Paper thickness: Number of copies: Notes: The use of 24 lb paper is only available at normal temperature. Printing past the edge of envelopes, multi-part forms, labels, or paper that is thicker than normal can damage the print head.
Page 261: Mechanical
#7768: 0.2 million characters #7770: 0.3 million characters For all components excluding print head: 5,000,000 lines LQ-850: 4000 power-on hours (at 25% duty) LQ-1050: 6000 power-on hours (at 25% duty) 200 million strokes per wire LQ-1050 (136) inches (142 mm) 23.8 14.2 inches (360 mm)
Page 262: Electrical
Shock: V&ration: 120 VAC ± 10% (self test printing: draft mode) LQ-850: 55 W LQ-1050: 60 W 49.5 ± 0.5 Hz 10M ohms between AC power line and chassis Can withstand 1.00 kV rms applied for one minute or 1.20 kV rms applied for one second Operation: 41°F to 95°F (5°C to 35°C)
Page 263: Interface Specifications
Interface Specifications Your printer is equipped with both a parallel and a serial interface. For specifications on optional interfaces, see the manuals provided with the interfaces. Parallel Interface Pin assignments for the parallel interface Connector pin assignments and a description of their respective interface signals are shown in the following table.
Page 264 E R R O R G N D SLCT IN Direction Description O U T A HIGH signal indicates that the printer is out of paper. O U T Pulled to +5 volts through 3.3 Kohm resistance. When this signal is LOW, the paper is automatically fed 1 line after printing.
Page 265 0.2 microseconds. Data transfer must be carried out by observing the ACKNLG or BUSY signal. Data transfer to this printer can be carried out only after receipt of the ACKNLG signal or when the level of the BUSY signal-is LOW.
Page 266: Serial Interface
High/Low DC1/DC3 Low (no effect) (no effect) While printing is disabled, character data is being received and acknowledged so that the printer can look for another DC1 character, which would allow it to resume printing. Serial Interface The LQ built-in serial interface is an RS-232C asynchronous interface...
Page 267: Error Handling
A * character is printed if a parity error is detected. All other errors are ignored. Connector 6-pin DIN connector In this table, the direction of signals is given relative to the printer. Signal n u m b e r Not used...
Page 268: Option Specifications
Option Specifications Cut Sheet Feeder Dimensions and weight: Option no. #7339 #7340 #7346 #7348 Dimensions: mounted on printer. Bin and Stacker capacity: Height Width 13.6 inches 16.93 inches 14.33 inches 4.84 lbs (345 mm) (430 mm) 23.82 inches 14.33 inches 6.6 lbs 13.6 inches...
Page 269 Reliability (total cycle of bin 1 and bin 2) MCBF: Paper: #7339 Paper width #7346 #7340 #7348 Paper length Paper thickness Paper weight Paper storage condition: Environmental Temperature: Humidity (without condensation): Notes: 24 lb paper printing is only available at normal operating conditions.
Page 270: Initialization
Initialization There are three ways that the printer can be initialized (returned to a fixed set of conditions). Hardware initialization Software initialization These three kinds of initialization have slightly different effects. In particular, ESC @ does not initialize the printer mechanism, clear the input data buffer, or clear the user-defined character set.
Page 271: Default Settings
User-defined characters Justification Graphic mode assignment In addition, the data buffer is cleared when the printer is initialized by turning on the power or by sending an INlT signal. Note: The user-defined character set is not cleared when the printer is initialized by ESC @.
Page 272: Chapter 9 Command Summary
Commands Arranged by Topic..... . . Printer Operation....... . . 9-8 M S B C o n t r o l .
Page 273: Using The Command Summary
The second part of this chapter lists and describes each command separately; the commands are divided into the following subjects: Printer operation MSB control Data control Vertical motion Horizontal motion Overall printing style Each command has a format section and a comments section.
Page 274: Examples
Note: Some application programs use control key sequences. See the Control Key Chart later in this chapter. Examples The simplest type of command consists of a single character to be sent to the printer. For instance, to print in condensed mode, the code format is: ASCII code: Decimal:...
Page 275: Control Key Chart
Using the Command Summary For the following commands that use only 0 or 1 for the variable, either the decimal or hexadecimal values 1 and 0 or the ASCII characters 1 and 0 can be used: ESC U, ESC x, ESC p, ESC W, ESC S, ESC-, ESC %, and ESC w. For example, in BASIC you can turn on proportional spacing with either of these statements: LPRINT CHR$(27);"p";CHR$(l)
Page 276: Commands In Numerical Order
(one line) ....Select Condensed Mode ..9-25 Select Printer....Cancel Condensed Mode ..9-26 Deselect Printer .
Page 277 Set MSB to 1 ....Reassign Graphics Mode ..9-40 Initialize Printer ....Set n/60-inch Line Spacing..9-16 Set Vertical Tabs.
Page 278 ASCII Dec. ESC N ESC O ESC P ESC Q ESC R ESC S 0 ESC S l ESC T ESC U ESC W ESC Y ESC Z ESC \ ESC a ESC b ESC g ESC k ESC l ESC p ESC q ESC t...
Page 279: Commands Arranged By Topic
Comments: Returns the printer to the selected state if it has been deselected by the printer deselect code (DC3). It does not select the printer if it has been switched off line by the ON LINE button. DC1 and DC3 do not work if pin 36 on the parallel interface is low (for example, on IBM PC and compatible computers).
Page 280: Printing Direction
H e x a d e c i m a l : 1 3 Comments: Puts the printer into the deselected state until the select printer code (DC1) is received. The printer cannot be reselected with the ON LINE button.
Page 281 ESC U Format: ASCII code: Decimal: Hexadecimal: Comments: The following values can be used for n: 1: Turns the mode on 0: Turns the mode off Printing is normally bidirectional. This command selects unidirectional printing for more accurate positioning. ESC EM Format: ASCII code: Decimal:...
Page 282: M S B C O N T R O
MSB Control MSB means the Most Significant Bit. MSB control (ESC =, ESC >, and ESC #) does not work for graphics or user-defined characters. ESC = Format: ASCII code: Decimal: Hexadecimal Comments: Sets the MSB of all incoming data to 0. Some computers always send data with the MSB set to 1, which means that italics or character graphics are always printed.
Page 283: Data Control
Commands Arranged by Topic Format: ASCII code: Decimal: H e x a d e c i m a l : 0 7 Comments: Sounds the printer’s beeper. Data Control Format: ASCII code: Decimal: Hexadecimal: OD Comments: Prints the data in the print buffer and returns the print position to the left margin.
Page 284: Vertical Motion
Vertical Motion Form feeding Format: ASCII code: Decimal: Hexadecimal: OC Comments: Prints the data in the print buffer and advances the paper to the top of the next form according to the current page length. The default page length is 66 lines; you can change the page length with ESC C.
Page 285 ESCCO Format: ASCII code: Decimal: Hexadecimal: Comments: Sets the page length to n inches. The value of n must be from 1 to 22. The top of form position is reset to the current line. Overrides the DIP switch page length setting. ESC N Format: ASCII code:...
Page 286 Line feeding Format: ASCII code: Decimal: Hexadecimal: OA Comments: When this command is received, the data in the print buffer is printed and the paper advances one line in the current line spacing. ESC + Format: ASCII code: Decimal: Hexadecimal: Comments: Sets line spacing to n/360 of an inch for subsequent line feed commands.
Page 287 Commands Arranged by Topic ESC 2 Format: ASCII code: Decimal: Hexadecimal: Comments: Sets the line spacing to l/6 of an inch for subsequent line feed commands. This line spacing is the default at power on. ESC 3 Format: ASCII code: Decimal: Hexadecimal: Comments:...
Page 288 ESC J Format: ASCII code: Decimal: Hexadecimal: Comments: Advances the paper n/180 of an inch. The value of n must be from 0 to 255. This command produces an immediate line feed but does not affect subsequent line spacing and does not produce a carriage return.
Page 289 ESC b Format: ASCII code: Decimal: Hexadecimal : Comments: Functions the same as ESC B, except that the variable c selects a channel for the vertical tabs, which must be from 0 to 7. Therefore, up to eight sets of vertical tabs can be set. The channels are selected by ESC /.
Page 290: Horizontal Motion
Horizontal Motion Margins ESC I Format: ASCII code: Decimal: Hexadecimal: Comments: Sets the left margin to n columns in the current character size. Settings made in the proportional mode are treated as 10 cpi. This command clears previous tab settings and all previous characters in the print line.
Page 291 Format: ASCII code: Decimal: H e x a d e c i m a l : 0 8 Comments: Prints out data in the print buffer, then moves the print position one space to the left. Backspacing is possible up to, but not beyond, the left margin setting.
Page 292 ESC \ Format: ASCII code: Decimal: Hexadecimal: Comments: Determines the position (relative to the current position) at which printing of subsequent data will start. To find nl and n2, first calculate the displacement required in dots. If the displacement is to the left, subtract it from 65536.
Page 293: Overall Printing Style
ESC D Format: ASCII code: Decimal: Hexadecimal: Comments: This command allows setting of up to 32 horizontal tabs, which are entered as nl, n2, n3, etc., (from 1 to 255) with the number 0 character terminating the command. The tab settings must be entered in ascending order.
Page 294 Comments: This command affects only the Letter Quality typestyle, not draft. If n = 0, the Roman typestyle in the printer is used. To select one of the other typestyles, use the family number of the font as shown below. For example, to choose the Prestige font, use 3 for the value of n.
Page 295: Print Size And Character Width
Print Size and Character Width ESC P Format: ASCII code: Decimal: Hexadecimal: Comments: Selects 10 character per inch printing. This command is normally used to cancel 12 or 15 cpi. ESC M Format: ASCII code: Decimal: Hexadecimal: Comments: Selects 12 character per inch printing. ESC g Format: ASCII code:...
Page 296 ESC p Format: A S C I I c o d e : E S C Decimal: Hexadecimal: Comments: Turns proportional mode on and off. The following values can be used for n: 1: Turns mode on. 0: Turns mode off. The width of proportional characters varies from character to character.
Page 297 ESC SI Format: ASCII code: Decimal: Hexadecimal: Comments: Duplicates the SI command and the function of the CONDENSED button on the control panel. Format: A S C I I c o d e : D C 2 Decimal: H e x a d e c i m a l : 1 2 Comments: Cancels condensed mode set by SI, ESC SI, or SelecType and returns printing to normal.
Page 298 ESC SO Format: ASCII code: Decimal: Hexadecimal: Comments: Duplicates the SO command. ESC W Format: ASCII code: Decimal: Hexadecimal: Comments: Doubles the width of all characters. The following values can be used for n: 1: Turns mode on. 0: Turns mode off. Format: A S C I I c o d e : D C 4 Decimal:...
Page 299: Print Enhancement
ESC w Format: ASCII code: Decimal: Hexadecimal: Comments: Doubles the height of all characters. The following values can be used for n: 1: Turns mode on. 0: Turns mode off. You may need to adjust line spacing to compensate for the height of these characters.
Page 300 ESC F Format: ASCII code: Decimal: Hexadecimal: Comments: Cancels the emphasized mode selected by ESC E. ESC G Format: ASCII code: Decimal: Hexadecimal: Comments: Makes text bolder by printing each line twice. ESC H Format: ASCII code: Decimal: Hexadecimal: Comments: Cancels the double-strike mode selected by ESC G.
Page 301 ESC S 0 Format: ASCII code: Decimal: Hexadecimal: Comments: Prints characters about two-thirds of the normal character height in the upper part of the character space. ESC S l Format: ASCII code: Decimal: Hexadecimal: Comments: Prints characters about two-thirds of the normal character height in the lower part of the character space.
Page 302 ESC (- Format: ASCII code: Decimal: H e x a d e c i m a l : 1 B Comments: Use decimal or hexadecimal values for all variables, not ASCII characters. Use the following values for the first 3 variables: nl must be 3.
Page 303 3: Selects outline with shadow. This command is valid for all characters, with the exception of character codes B0H to DFH, F4H, and F5H (176 to 223, 244, and 245 decimal) in the Epson Extended Graphics character table. Command Summary 9-32...
Page 304: Word Processing
Word Processing ESC a Format: A S C I I c o d e : E S C Decimal: Hexadecimal: Comments: Sets the type of justification. The following values can be used for n: 0: Selects left justification. 1: Selects centering. 2: Selects right justification.
Page 305: Select Italic Mode
Character Sets ESC t Format: ASCII code: Decimal: Hexadecimal: Comments: Selects the character table used by codes 128 to 225. Selecting a graphics character set does not disable italic printing. Italic printing can still be selected by ESC 4. The following values can be used for 0: Selects italics character table.
Page 306 ESC 5 Format: ASCII code: Decimal: Hexadecimal: Comments: Cancels the mode selected by ESC 4. ESC R Format: ASCII code: Decimal: Hexadecimal: Comments: Selects one of the international character sets. The following values can be used for n: 0 = USA 1 = France 2 = Germany 3 = England...
Page 307 User-defined Characters See Chapter 4 for sample programs and full information on this topic. ESC & Format: ASCII code: Decimal: H e x a d e c i m a l : 1 B Comments: This command allows characters to be redefined in the currently selected mode.
Page 308 ESC % Format: ASCII code: Decimal: Hexadecimal: Comments: This sequence is used to print the user-defined (download) character set. ESC & is required to define the character set. The following values can be used for n: 0: Selects the normal set. 1: Selects the user-defined set.
Page 309 Graphics See Chapter 4 for sample graphics programs. See the table under ESC * for graphics modes. ESC K Format: ASCII code: Decimal: Hexadecimal: Comments: Turns on 8-pin, single-density graphics mode. The total number of columns = nl + (n2 x 256). ESC L Format: ASCII code:...
Page 310 ESC Z Format: ASCII code: Decimal: Hexadecimal: Comments: Turns on S-pin, quadruple-density graphics mode. The total number of columns = nl + (n2 x 256). ESC * Format: ASCII code: Decimal: Hexadecimal: Comments: Turns on graphics mode m. See the following table for details on the available modes.
Page 311 ESC ? Format: ASCII code: Decimal: Hexadecimal: Comments: Changes from one graphics mode to another. The variable s is a character (K, L, Y or Z). The variable m corresponds to the mode m in the ESC * command. Command Summary 9-40 Reassign Graphics Mode...
Page 312: Appendix
Appendix Proportional Width Table ......Character Sets ........A-6...
Page 313: Proportional Width Table
Proportional Width Table This table lists the widths of your printer’s proportional characters. The values given are in 360ths of an inch. (For example, a value of 36 is 36/360ths of an inch.) You may need to enter these widths into a special table for your processing program so it can calculate the number of proportional characters that will fit on a line.
Page 314 Code Width Code 36/24 36/24 36/24 36/24 36/24 36/24 36/24 36/24 36/24 24/16 30/20 36/24 36/24 42/28 36/24 36/24 36/24 36/24 36/24 36/24 36/24 42/28 36/24 42/28 36/24 36/24 30/20 24/16 30/20 24/16 30/20 30/20 18/12 30/20 36/24 30/20 Width 36/24 30/20 24/16...
Page 315 Code Code Width 30/20 30/20 18/12 18/12 18/12 36/24 36/24 36/24 42/28 42/28 30/20 30/20 30/20 36/24 36/24 36/24 36/24 42/28 30/20 30/20 36/24 42/28 30/20 30/20 18/12 30/20 36/24 36/24 36/24 30/20 30/20 30/20 30/20 30/20 30/20 30/20 30/20 Width 30/20 3O/20...
Page 316 30/20 30/20 30/20 F f 5 Width 30/20 30/20 30/20 30/20 30/20 30/20 30/20 30/20 30/20 30/20 30/20 30/20 30/20 24/16 30/20 36l24 36l24 30/20 30/20 30/20 42/28 18/12 30/20 30/20 36/24 36/24 30/20 36/24...
Page 317: Character Sets
Character Sets The italics character set or a graphics character set is selected by DIP switch 1-4 or the ESC t software command. The graphics character sets are selected by DIP switches 1-1, 1-2, and 1-3 when DIP switch 1-4 is on. For the graphics character sets, the ESC 6 or ESC 7 software command lets you select whether to print hex codes 80 to 9F as characters (ESC 6) or control codes (ESC 7).
Page 318 Graphics Character Sets PC 437 (United Stafes)-Epson Extended Graphics CODE PC 850 (Multilingual) CODE...
Page 319 PC 860 (Portugal) PC 863 (Canada-French) CODE...
Page 320 PC 865 (Norway) CODE...
Page 321: Bidirectional Printing
When this feature is enabled using a DIP switch or external control through the parallel connector, the printer will automatically feed the paper one line after receiving a CR code. baud rate A measure of the speed of data transmission.
Page 322 33 other codes which are called control codes. These control codes perform such functions as sounding the beeper and performing a carriage return or line feed. cut sheet feeder (CSF) An optional, detachable device which automatically feeds single sheets of paper into the printer. 2 Glossary...
Page 323: Graphics
DIP switches Small switches in a printer that control various printer functions and set the default status of the printer when it is turned on or initialized. DIP stands for Dual In-line Package. dot graphics A graphic design formed by patterns of dots. Also called bit image graphics.
Page 324 ESCJP Abbreviation for Epson Standard Code for Printers. The system of commands lets you perform software control of your primer from your computer. It is standard for all Epson primers and supported by most application software for personal computers. font A font is a style of type designated by a family name.
Page 325: Input Buffer
The memory in the printer in which data sent from the computer is stored while waiting to be printed. interface The means of connection between the computer and printer. See also parallel interface and serial interface. italic A typestyle in which the characters slant. This sentence is italicized.
Page 326 Any decimal number between 0 and 255 can be expressed by a two-digit hex number. on line When the printer is on line, it is able to communicate with the computer connected to it. paper bail The part of the printer that holds the paper against the platen.
Page 327: Print Quality
A built-in device that feeds continuous paper through the printer. Acronym for Random Access Memory. The portion of the printer’s memory used as a buffer and as a place for storing user-defined characters. All data stored in RAM is lost when the printer is turned off. reset To return a primer to its defaults, either by a command, a n I N l T signal, code, or by turning the printer off and on.
Page 328: Unidirectional Printing
A method of checking the operation of the printer. When the self test is run, the printer prints out its current DIP switch settings and the characters that are stored in its ROM (Read Only Memory). serial interface A serial interface transmits data one bit at a time.
Page 329 Characters that are defined and stored in the printer by the user. Also known as download characters. A character spacing of 10 characters per inch. This is often the standard or default pitch. A character spacing in which each character is slightly narrower than normal, so that there are 12 characters per inch.
Page 330 3-6-10,8-3 size, 4-4-5 spacing, 3-4,3-10-11,4-3-4 style, 9-32 width, 9-24-28 Character sets, 3-28-31,8-3, 9-34-35, A-6-9 choosing, 3-28-31 Epson Extended Graphics, A-7 graphics, 3-13,3-15,3-30-31, A-7-9 international, 3-13-14, 3-28-29 italics, 3-13, 3-30, A-6 selecting, 9-34 Code page tables, see Graphics character sets...
Page 331 Emphasizing text, 4-5-8, 9-28-29 Index Envelopes, 2-25-26,2-32-34 cut sheet feeder, S-14-16 manual feed, 2-33 printable area, 2-33-34 Epson Extended Graphics character set, 3-15,3-31, A-7 Error handling, #8Ml43 serial interface, 5-56 ESCape codes, see Commands Film ribbon, 1-15,6-4 Fixed character spacing, 4-3...
Page 332 Initialization printer, 9-8-9 specifications, 8-17-18 Input buffer control, 3-5 Interface boards, 5-41-56 choosing, 5-41 coax, 5-41-42 frame ground wire, 5-48, 5-51-53 IEEE-488,5-41-42 installing, 5-42-55 new serial interface #8143, 5-55-56 parallel, 5-41-42 serial, 5-41-42 Twinax, 5-41-42 Interface type/parity, 3-13-14 International character sets...
Page 333 Printable area, 8-5-6 Printer assembling, 1-10-17 cleaning, 6-2-3 connecting to computer, 1-30-33 location for, 1-8-9 maintaining 6-2-12 options, using, 5-2-56 plugging in, 1-18 settingup,1-2-34 software control, 9-8-40 specifications, 8-2-18 testing, 1-18-29 transporting, 6-9-12 unpacking, 1-2-7 using, 3-2-34 Printer stand, 1-9...
Page 334 8-15-16 electrical, 8-9 environmental, 8-9 initialization, 8-17-18 interface, 8-10-14 mechanical, 8-8 options, 8-15-16 paper, 8-4-7 parallel interface, 8-10-13 printer, 8-2-9 printing, 8-2-3 serial interface, 8-13-14 Strike-through mode, 4-7 Subscripts, 4-5,4-7,9-30 SuperDraft, 4-2-3 font, 3-7,3-10 mode, 1-19,1-26,3-13,3-17 Superscripts, 4-5,4-7,9-30...
Page 335 Tear-off mode, see Short tear-off Tear-off position, adjusting, 3-26-27 Technical specifications, see specifications Tractor, see Pull tractor Troubleshooting, 7-2-36 options, 7-27-36 paper handling, 7-16-26 power supply, 7-4 printing, 7-5-15 Typestyles, selecting, 3-6-11, 4-8-9,9-23 Underline mode, 4-5, 4-7-8, 9-32 Underlining, 4-3,9-31 Unidirectional mode, 9-9-10 printing, 3-16,8-2...
Page 336 Quick Reference...
Page 337 Commands Arranged by Topic This section lists all the commands, The page numbers in Chapter 9 where a complete description of the command can be found. Printer Operation Data Control Code Vertical Motion the columns on the right are the...
Page 338 Horizontal Motion Overall Printing Style Code ESC x ESC k Print Size and Character Width Print Enhancement Word Processing Code ESC a ESC SPfsoacel Function Select Letter Quality or Draft Select Typestyle Family Master Select Function Select Justification Set Intercharacter Soaca Page 9-22 9 2 3...
Page 339: Character Table
Character Tables cods ESC t ESC 4 ESC 5 ESC R User-defined Characters Code ESC & ESC : ESC % ESC 6 ESC 7 Graphics The DIP Switch Tables DIP Switch 1 DIP Switch 2 Description Page length selection Interface type/parity Baud rate Short tear-off mode Auto line feed...
Page 340 built-in push tractor...

This manual is also suitable for:

Lq-850

Epson LQ-1050 User Manual

Table of Contents

Chapter 1 Setting up the Printer

Chapter 2 Paper Handling

Chapter 3 Using the Printer

Chapter 4 Software and Graphics

Chapter 5 Using the Printer Options

Chapter 6 Maintenance

Chapter 7 Troubleshooting

Chapter 8 Technical Specifications

Chapter 9 Command Summary

Quick Links

Chapters

Troubleshooting

Related Manuals for Epson LQ-1050

Summary of Contents for Epson LQ-1050