Table Of Contents - Toshiba MR-3022 Service Manual

1. SPECIFICATIONS......................................................................................................... 1-1
2. GENERAL DESCRIPTION............................................................................................ 2-1
2.1 Main Components................................................................................................................ 2-1
2.2 Sectional View ..................................................................................................................... 2-2
2.3 Electric Parts Layout............................................................................................................ 2-3
2.4 Symbols and Functions of Various Components................................................................. 2-4
2.5 Diagram of Signal Blocks..................................................................................................... 2-5
2.6 Description of Interface Signals ........................................................................................... 2-6
3. DESCRIPTION OF OPERATIONS ............................................................................... 3-1
3.1 DRIVE SYSTEM .................................................................................................................. 3-1
3.1.1 Outline ...................................................................................................................... 3-1
3.1.2 Original feed motor drive section.............................................................................. 3-2
3.1.3 Read motor drive section ......................................................................................... 3-3
3.1.4 Original exit/reverse motor drive section .................................................................. 3-4
3.2 Original Size Detection ........................................................................................................ 3-5
3.2.1 Outline ...................................................................................................................... 3-5
3.2.2 Original tray width sensor ......................................................................................... 3-5
3.2.3 Original width detection sensors-1 and -2 / Original length detection sensor........... 3-6
3.3 FLOW CHART ..................................................................................................................... 3-8
3.4 DESCRIPTION OF CIRCUIT............................................................................................. 3-16
3.4.1 Drive Circuit for Feed Motor ................................................................................... 3-16
3.4.2 Drive Circuit for Read Motor ................................................................................... 3-17
3.4.3 Drive Circuit for Exit Motor .................................................................................... 3-18
3.4.4 Drive Circuit for FAN Motor ................................................................................... 3-18
3.4.5 Reset Circuit .......................................................................................................... 3-19
3.4.6 Drive Circuit for Pickup Solenoid ........................................................................... 3-19
3.4.7 Drive Circuit for Gate Solenoid .............................................................................. 3-20
4. DISASSEMBLY AND ASSEMBLY ............................................................................... 4-1
4.1 Cover ................................................................................................................................... 4-1
4.2 Roller ................................................................................................................................... 4-6
4.3 Motor / Motor drive section ............................................................................................... 4-18
4.4 Solenoid............................................................................................................................. 4-24
4.5 Sensor/switch .................................................................................................................... 4-26
4.6 PC Board ........................................................................................................................... 4-34
4.7 Others ................................................................................................................................ 4-35
5. ADJUSTMENT .............................................................................................................. 5-1
5.1 Adjustment of Position ......................................................................................................... 5-1
5.2 Adjustment of Height ........................................................................................................... 5-7
5.3 Adjustment of Skew ............................................................................................................. 5-9
5.4 Adjustment of the Leading Edge Position.......................................................................... 5-12
5.5 Adjustment of Horizontal Position...................................................................................... 5-14
5.6 Adjustment of Copy Ratio .................................................................................................. 5-16
5.7 Adjustment of RADF Opening/Closing Sensor .................................................................. 5-17
6. TROUBLESHOOTING .................................................................................................. 6-1
6.1 Troubleshooting for Mechanical Errors................................................................................ 6-1
6.2 Troubleshooting for Electrical Errors ................................................................................... 6-2
6.3 Jam ...................................................................................................................................... 6-4
7. MAINTENANCE AND REWRITING ROM .................................................................... 7-1
7.1 Periodic Maintenance .......................................................................................................... 7-1
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CONTENTS
1
09/05
MR-3018/3020/3021/3022
CONTENTS