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Toshiba Manuals
Copier
1550
Service manual
Table Of Contents - Toshiba 1550 Service Manual
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Also See for 1550
:
Service handbook
(63 pages)
,
Operator's manual
(31 pages)
,
Manual
(32 pages)
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Table Of Contents
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Contents
Table of Contents
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Table of Contents
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Table of Contents
General Preacutions
2
Specifications
4
Accessories
7
Options And Supplies
7
Outline Of The Machine
8
Table Of Contents
8
Front And Rear Sectional Views For The 1560
10
Electrical Parts Location Diagram
12
Dc Electrical Parts Excluding Motors
12
Mirror
12
Electrical Parts Such As Motors
13
Ac Electrical Parts
14
Exposure Lamp
14
Symbol And Function Of Electrical Parts
15
Wire-Harness Location Diagram
18
Location Diagram For Upper Unit
18
Location Diagram For Lower Unit
19
Removing Covers
20
Front Cover
20
Inner Cover
20
Right-Side Covers And Feed-Side Cover
21
Top Cover And Glass Holder
22
Rear Cover
22
Left-Top Cover, Left-Side Cover And Left-Side Cover
23
Raise The Upper Unit
23
Control Panel Cover
24
Removal And Installation Of Electrical Parts
25
Remove The Control-Panel Pc Board
25
Total Counter
26
Logic Pc Board
26
Power Supply Unit
26
Door Switch And Main Switch
27
Main Switch Connector Connecting Diagram
29
Door Switch Connector Connecting Diagram
29
High-Voltage Transformer For The Main Charger
30
Size Switch
30
Exit Fan
30
Front Optics Fan
31
Fuse
31
Fuse Pc Board
31
Main Motor
32
Lamp Regulator Pc Board
32
Optics Fan
33
Copying Process
34
Ed-1550/1560 Copying Process
35
Copier Operation
37
Operation Outline
37
Description Of Operation
37
During Warm Up
37
Aligning Operation
38
Carriage 2
38
Bypass-Feed Copying
41
Interrupt Copying
41
1550/1560
41
Fault Detection
42
Flow Charts
46
After Power Supply Is Turned On
46
Automatic Feed Copying
48
Display Unit
50
Control Panel And Indication Panel
50
Items Displayed On Control Panel
51
Relationship between Machine Condition and Operator's Action
52
Led Display Circuit
53
Led Display Method
53
Conditions For Led To Come On
54
Drive Mechanism
55
Construction
55
Aligning Roller (Lower
55
Upper Unit Drive
56
Lower Unit Drive
56
Explanation Of Functions
57
Disassembly And Replacement
58
Drum Drive Gear And Developer Drive Gear
58
Lower Drive Unit
63
Main Motor Drive
64
Control Signal
65
Signal Level Of Motor Circuit
65
Bypass Feed Section
66
Bypass Feed Roller
66
Removal Of The Separation Pad
66
Removal Of The Clutch
66
Optical System
68
Mirror Unit
68
Explanation Of Operation
70
Scanning Motor
70
Mirror Motor And Lens Motor
71
Immediately After The Power On
72
When A Reproduction Ratio Is Selected
72
Auto Exposure Pc Board And Damp Heater
73
Damp Heater
73
Auto Exposure Pc Board
73
Mirror Motor
74
Lens Motor
75
Home Switch, Mirror Switch And Lens Switch
75
Exposure Lamp And Thermofuse
76
Original Glass
76
Carriage 1
77
Carriage Drive Wire
78
Mirror 6
81
Pulse Motor Drive Circuit
82
Form Of Electric Wave That Flows Into The Motor
83
Waveform Timing Chart Of Each Section
84
Equivalent Circuit Of Stk6712B
84
Pulse Motor Dirve Circuit
85
Exposure Control Circuit
86
Brief Description
86
Function Of Lamp Regulator
87
Characteristics Of The Curve Of The Lamp Regulator
87
Automatic Exposure Sensor Circuit
88
Arithmetic And Control Unit
88
Lamp Regulator Circuit
89
Feeder Unit
90
Upper Paper Feeder Unit
90
Lower Paper Feeder Unit Turned Upside Down
90
Aligning Roller (Upper
90
Paper Feeding Operation
91
Paper Separation Operation
92
Manual Feeding Operation
92
Cassette Feeding Operation
92
Upper Paper Feed Unit
94
Aligning Switch
94
Clutch And Aligning Rollers
95
Lower Paper Feed Unit
97
Empty Switch
98
Pick-Up Roller And Feed Roller
100
Pick-Up Roller Clutch And Feed Roller Clutch
100
Drum-Related Section
101
Discharge Lamp
101
Main Charger, Discharge Lamp And Led Erasing Array
102
Transfer/Separation Chargers
102
Process Unit
103
Main Charger Unit
103
Led Erasing Array
104
Main Charger
104
Replacing The Cleaning Pad
105
Replacing The Charge Wire
106
Damp Heater Unit
107
Transfer/Separation Terminal
108
Main Charger Terminal
109
Transfer/Separation Electric Current Control Circuit
110
Description
110
Transfer/Separation Control Circuit Diagram
110
Led Eraser Array
111
High-Voltage Transformer (Ps-Hvt)
113
Developer Unit
114
Front Sectional View
114
Drive System
115
Magnetic Roller, Mixer 1 And Mixer 2
115
Toner Cartridge
115
Removal And Installation Of The Developer Unit
116
Installing The Developer Material
116
Removing The Developer Material
118
Guide Rollers
119
Front Side
119
Rear Side
120
Toner Cartridge Drive Motor
121
Auto-Toner Sensor
121
Magnetic Roller
122
Brush Motor Drive
123
Auto-Toner Sensor Circuit
124
Operation Of Auto-Toner Sensor
125
Functions Of Auto-Toner Sensor
125
Cleaner Unit
127
View With The Drum, Main Charger Unit And Developer Unit Removed
127
View With The Drum Removed
127
Recovery Blade
127
Toner Recovery Auger
128
Drum
129
Main Blade
131
Toner Full Switch
132
Fuser And Paper Exit Section
133
View With The Fuser Guard Removed
133
View With The Upper Heat Roller Removed
133
Fuser Unit
134
Paper Exit Section
134
Heater Lamp
135
Thermostat, Thermistor And Brush
136
Cleaning Felt Roller And Cleaning Blade
137
Upper Heat Roller
137
Lower Heat Roller
137
Lower Exit Roller And Paper Exit Switch
138
Lever Caps
139
Separation Claws
139
Lower Exit Roller
139
Paper Exit Switch
139
Heater Control Circuit
141
Temperature Detection Unit
141
Thermistor Disconnection Detection
142
Optional Paper Feeding Unit
143
General Description
144
Names Of The Main Components
144
View With The Rear Cover And Cassette Removed
144
Symbols And Functions Of Electrical Parts
145
Functions And Operation
146
Detection And Clearing Of Paper Jams
147
Covers And Paper Guide
149
Jam Access Cover
149
Paper Guide
149
Transport Rollers, Paper Stop Switch
151
Transport Roller Clutch And Door Switch
151
Transport Guide
152
Separation, Pick-Up And Feed Rollers
153
Lower Paper Feeding Unit
154
Drive Motor And Drive Pc Board
155
Flow Chart
157
Timing Chart
161
A4 Lateral Single-Sheet Copying
161
A4 Lateral Two-Sheets Copying
161
Explanation Of Circuits
162
Interface Signals
162
Signals From The Copier To The Paper Feeding Unit
162
Signals From The Paper Feeding Unit To The Copier
162
Driving Of The Drive Motor
163
Current Route While The Motor Is Turned On/Off
163
Electric Circuit Diagram And Pc Board Assembly
164
Pfu Drive Circuit Diagram
164
Harness Location Diagram
165
Harness Connection Diagram
166
Pc Board Assembly
167
Electrical Circuit Diagram
168
Logic Circuit
168
1560 Logic Circuit
176
Power Supply Circuit
184
Control Panel Circuit
185
Fuser Circuit
189
Power Stabilizing Circuit
190
Explanation Of Circuit Operation
191
Pwa-F-Lgc
192
Pwa-F-Fus
192
Pwa-F-Pnl
193
Pwa-F-Aes
193
Pwa-F-Lrg
193
Ac Harness Connection Diagram
194
Ac Control Circuit
194
Dc Harness Connection Diagram
195
Unpacking And Set-Up Procedure For The 1550
197
Installing The Copy Receiving Tray
198
Setting The Developer Unit
199
Adjustment Procedure
201
Automatic Adjustment Of The Auto-Toner Sensor
201
Final Operation Check
202
Changing The Image Settings
202
Light Distribution Adjustment
202
Exposure Adjustment
202
Adjustment Of Manual Exposure
203
Automatic Adjustment Of Auto Exposure
204
Manual Adjustment Of Exposure
205
Changing The Paper Size Of The Cassette
206
Procedure For Installing The Toner Cartridge
207
Unpacking And Set-Up Procedure For The Paper Feeding Unit My-1004
208
Installation Procedure
209
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