Brother ADS-2000 Service Manual page 5

4.1.6 The first side or second side CIS flat cable is not connected correctly. .............. 2-15
4.1.7 An error occurred during access to the DRAM in the main PCB ASSY.
Program error
An error occurred in the ROM checksum.
Write error in the EEPROM of the main PCB...................................................... 2-15
4.1.8 The country code was not entered correctly. ...................................................... 2-15
4.1.9 The page counter for the separation pad has reached the limit.
The page counters for both the separation pad and
the pick-up roller have reached the limit.
The page counter for the pick-up roller has reached the limit. ............................ 2-16
4.1.10 The front cover sensor detected an open front cover in the ready state.
The front cover sensor detected an open front cover during scanning. .............. 2-16
4.1.11 Color parameter in the ROM does not match
the first side or second side CIS unit................................................................... 2-16
4.1.12 A scanning error occurred while scanning the image.......................................... 2-16
4.1.13 The voltage value was below the lower limit during scanning.
The white level does not increase during scanning
although the light intensity was increased.
A white level not within the standard was scanned when the maintenance mode
function "Acquire white level data and set CIS scan area" was executed.
A black level not within the standard was scanned when the maintenance mode
function "Acquire white level data and set CIS scan area" was executed........... 2-16
4.2 Troubleshooting for Image Defects.................................................................................... 2-17
4.2.1 Defect examples.................................................................................................. 2-17
4.2.2 Troubleshooting according to image defect ........................................................ 2-17
4.3 Troubleshooting for Document Paper Feeding Problems.................................................. 2-20
4.3.1 Multiple documents are fed ................................................................................. 2-20
4.3.2 Document becomes wrinkled .............................................................................. 2-20
4.3.3 Document becomes jammed............................................................................... 2-21
4.3.4 Document is not picked up and fed ..................................................................... 2-22
4.4 Troubleshooting for Software Problems ............................................................................ 2-23
4.4.1 Does not respond to operation from a computer................................................. 2-23
4.4.2 Cannot read data ................................................................................................ 2-23
4.5 Troubleshooting for Control Panel Problems..................................................................... 2-24
4.5.1 Nothing is displayed on the LED ......................................................................... 2-24
4.5.2 Control panel is inoperable.................................................................................. 2-24
4.5.3 Only specified buttons are inoperable ................................................................. 2-24
4.6 Troubleshooting for Other Problems.................................................................................. 2-25
4.6.1 Machine is not turned ON.................................................................................... 2-25
4.6.2 Unusual noise is generated from the machine .................................................... 2-25
4.6.3 Data cannot be saved in the USB memory ......................................................... 2-25
CHAPTER 3 DISASSEMBLY/REASSEMBLY
1. SAFETY PRECAUTIONS............................................................................................................. 3-1
2. PACKING ..................................................................................................................................... 3-2
3. SCREW CATALOGUE................................................................................................................. 3-3
4. SCREW TORQUE LIST ............................................................................................................... 3-4
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