© 2005 - 2011 TOSHIBA TEC CORPORATION All rights reserved MR-3018/3020/3021/3022
CONTENTS
1
CONTENTS

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
09/05