Canon iR2200 Service Handbook page 251

E302
0001 During shading, the shading processing does not end on the reader control-
ler PCB after 1 sec.
0002 During stream reading, the edge white addition processing does not end on
the rear controller PCB after 10 sec.
Main cause The CCD PCB is faulty. The wiring is faulty (short circuit, open circuit).
The reader controller PCB is faulty.
Action
1. Connector
Are the connectors (J6001/J6002) on the CCD PCB and the connectors
(J5002/J5003) on the reader controller PCB connected securely?
NO:
2. CCD unit
Try replacing the CCD unit. Is the problem corrected?
YES: End.
3. Reader controller PCB, Main controller PCB
Try replacing the reader controller PCB. Is the problem corrected?
YES: End.
NO:
Connect the connectors securely.
Check the wiring; if normal, replace the main controller PCB.
CHAPTER 6 SELF DIAGNOSIS
6-19