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June 2005 © TOSHIBA TEC MR-3018 CONTENTS
1
CONTENTS
1. Specification ................................................................................................................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 ...........................................................................................................5-6
5.3 Adjustment of Skew.............................................................................................................5-8
5.4 Adjustment of the Leading Edge Position.......................................................................... 5-11
5.5 Adjustment of Horizontal Position......................................................................................5-13
5.6 Adjustment of Copy Ratio..................................................................................................5-14
5.7 Adjustment of RADF Opening/Closing Sensor.................................................................. 5-15
6. Troubleshooting .......................................................................................................... 6-1
6.1 Troubleshooting for Mechanical Errors................................................................................6-1
6.2 Troubleshooting for Electrical Errors ...................................................................................6-2
7. MAINTENANCE AND REWRITING ROM .................................................................... 7-1
7.1 Periodic Maintenance ..........................................................................................................7-1
7.2 Rewriting ROM (Firmware Updating)...................................................................................7-2