เกี่ยวกับ CPU communication of document feeder
E420 Backup data cannot be read, or the data is faulty.
E421 Faults occur when writing backup data, or the written data is
faulty.
E422 A transmission error occurs due to faults in IPC of DF/ ADF/
RDF. This error code is detected by DF and it is not notified to a copier, so
the error code is not indicated.
E431 - The output of the paper sensor is faulty.
E431 - The sub pick-up roller does not return to the home
position.
E431 - Clock pulses of the sub feeder motor are below a specific
value.
เกี่ยวกับ
CFF
E441 CFF motor failure.
E442 CFF exhaust fan failure.
E443 The CFF lamp regulator failure, the CFF lamp failure, a fault
in the CFF temperature fuse, or a fault in the CFF controller PCB.
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