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CHAPTER 5 TROUBLESHOOTING
D.
Errors
Code Cause � A fault exists in the communication cable between the machine and the copier. � An error exists in the ADF controller PCB. Description � The communication between the machine and the copier was interrupted for 5 sec or more while the machine was in standby. � The communication between the machine and the copier was interrupted for 0.5 sec or more while the machine was in operation. � The clock signals were not generated for 100 msec while the belt motor drive signal was being generated.
E400
E402 E404
� An error exists in the belt motor (M2). � An error exists in the belt motor clock sensor (PI1). � An error exists in the ADF controller PCB. � An error exists in the delivery motor (M5). � An error exists in the delivery motor clock sensor (PI11). � An error exists in the ADF controller PCB. � An error exists in the separation motor (M4). � An error exists in the separation motor clock sensor (PI2). � An error exists in the ADF controller PCB. � An error exists in the pickup motor (M3). � An error exists in the pickup roller height sensor 1 (PI8). � An error exists in the pickup roller height sensor 2 (PI9). � An error exists in the pickup roller home position sensor (PI7). � An error exists in the ADF controller PCB. � The back-up data could not be read, or the data that was read had an error.
� The clock signals were not generated for 200 msec while the delivery motor drive signal was being generated.
E405
� The clock signals were not generated for 200 msec while the separation motor drive signal was being generated.
E410
� The pickup roller height sensors 1 (PI8) and 2 (PI9) did not generate signals within 2 sec after the pickup motor had been driven. � The pickup roller home position sensor (PI7) did not generate signals within 2 sec after the pickup motor had been driven.
E420
� The back-up data could not be read twice when the copier was turned on, or the data which was read had an error.
