E121-0002; E202 (The Keys In The Control Panel Are Locked.) - Canon iR105 Service Manual

4.1.26 E121-0002

Foreign matter
1) Is there foreign matter that prevents the rotation of the laser driver
YES: Remove the foreign matter.
Connector
2) Is the connector J503 on the DC controller PCB connected firmly?
NO:
Laser driver cooling fan (FM5), DC controller PCB
3) Try replacing the laser drive cooling fan (FM5). Is the problem cor-
NO:
YES: Replace the DC controller PCB.

4.1.27 E202 (The keys in the control panel are locked.)

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1) Is the scanner in home position when E202 is indicated?
NO:
Connector
2) Is the connector J1702 on the relay PCB connected firmly?
NO:
Scanner home position sensor (PS1), Reader controller PCB
3) Is the scanner home position sensor (PS1) normal? (See the instruc-
YES: Check the wiring from the reader controller PCB to PS1; if normal,
NO:
COPYRIGHT© 2001 CANON INC.
cooling fan?
Connect it firmly.
rected?
End.
See "The scanner fails to move forward."
Connect it firmly.
tions on how to check photointerrupters.)
replace PS1.
Replace the reader controller PCB.
2000 2000 2000 2000
CHAPTER 6 TROUBLESHOOTING
CANON iR105 REV.0 JULY 2001
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