Canon Resolving E202 Error Codes: Understanding Error 0001, 0002, and Printer Issues

CHAPTER 6 SELF DIAGNOSIS

E202

The home position sensor does not go ON when the main power switch is turned on.

0001	The scanner home position sensor does not go OFF when the scanner is
	moved forward by 40 mm.
0002	The scanner home position sensor does not go ON when the scanner is
	moved reverse 450 mm.
Main cause	The scanner home position sensor (PS400) is faulty. The scanner motor
	(M400) is faulty. The reader controller PCB is faulty.
Action
1. State
	Does the scanner operate when the power is turned on?
	NO: See 4.2.9 “The No. 1 mirror base does not operate.”
2. Scanner home position sensor (PS400), Reader controller PCB
	Move the No. 1 mirror base by hand from home position. Does the output
	of the scanner home position sensor change? (J405-2 on the reader control-
	ler PCB is 5 V (in HP) or 0V (away from HP))
	NO: Replace the sensor.
	YES: Replace the rear controller PCB.

E204

0001	While an original is being read, the image leading edge signal does not ar-
	rive from the ADF.
Main cause	The ADF controller PCB is faulty. The reader controller PCB is faulty.
Caution	When this code occurs, no code is indicated, but the keys are locked. The
	code may be checked in service mode: COPIER>DISPLAY>ERR.

Action

1. Read sensor (S2)

Try replacing the read sensor of the ADF. Is the problem corrected? YES: End.

2. ADF controller PCB, Reader controller PCB

Try replacing the ADF controller PCB. Is the problem corrected? YES: End.

NO: Replace the reader controller PCB.

COPYRIGHT © 2001 CANON INC. CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001 6-15 T