Troubleshooting For Electrical Errors - Toshiba MR-3022 Service Manual

6.2

Troubleshooting for Electrical Errors

1) RADF does not work (except in the case of a paper jam or when the cover is open)
Interface harness connected properly?
NO→ Connect the harness properly or replace it
↓
YES
DC+5V supplied to CN70-2, 3pin?
↓
NO→ Connect the harness properly or replace it
YES
DC+24V supplied to CN70-6, 7pin?
↓
NO→ Connect the harness properly or replace it
YES
DC+24V supplied to CN72-4pin?
↓
NO→ Check or replace the jam access cover switch
YES
Empty sensor is ON when there is paper?
↓ NO→ Check or replace the empty sensor
YES
Check or replace the RADF board
2) Communication error
Interface cable normal?
↓ NO→ Replace the interface cable
YES
Check or replace the RADF board and check the equipment
3) Size detection error
Original tray sensor is ON when there is paper?
↓ NO→ Replace the sensor or harness
YES
Registration roller does not catch the original?
↓
YES→ Clean the roller with alcohol or replace
NO
Original width detection sensor-1 is ON when there is paper?
↓ NO→ Replace the sensor or harness
YES
Original width detection sensor-2 is ON when there is paper?
↓
NO→ Replace the sensor or harness
YES
Check or replace the RADF board
MR-3018/3020/3021/3022
TROUBLESHOOTING
© 2005 - 2011 TOSHIBA TEC CORPORATION All rights reserved
6 - 2
11/12