CHAPTER 6 SELF DIAGNOSIS

1.2 ADF Error Codes

When the ADF’s self diagnostic mechanism has gone ON, it may be reset by turning off and then on its host machine.

The host machine can still generate copies in book mode if the ADF cable is discontented even while the ADF is out of order.

E420

0001

When the power switch of the host machine is turned on, the back-up data

 

from the EEPROM cannot be read or the data that has been read has a fault.

Main cause

The EEPROM is faulty. The ADF controller PCB is faulty.

E421

0001

The back-up data cannot be written to the EEPROM, or the data that has

 

been written has a fault.

Main cause

The EEPROM has a fault. The ADF controller PCB has a fault.

E422

0001

While the ADF is in standby, the communication with its host machine is

 

disrupted for 5 sec or more; or, while the ADF is in operation, the commu-

 

nication with its host machine is disrupted for 0.5 sec or more.

Main cause

The IPC communication is faulty. The communication line has an open cir-

 

cuit. The ADF controller PCB is faulty.

COPYRIGHT © 2001 CANON INC.

CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001

6-37 T

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Canon IR2200, IR3300, IR2800 manual E420, E421, E422, ADF Error Codes