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TROUBLESHOOTING
6 - 2
6.2 Troubleshooting for Electrical Errors
1) ADF does not work (except in the case of a paper jam or when the cover is open)
2) Abnormality of motor
3) Communication error
4) Size detection error
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 ADF board
Power supplied and drives signals to connector of motor?
↓
NO→ Check or replace motor
YES
There is no mechanical overloading at the motor and the drive system is correct? (Belt tension etc.)
↓ NO→ Check or replace motor harness
YES
Check or replace the RADF board
Interface cable normal?
↓
NO→ Replace the interface cable
YES
Check or replace the ADF board and check the equipment
Is the sensor harness normal, and is it connected to the connector (CN73) properly?
↓ NO→ Connect the harness to the connector properly or replace it.
YES
Are the original tray width sensor and original tray sensor normal?
↓ NO→ Check the original tray width sensor and original tray sensor or replace them.
YES
Check the ADF board or replace it.