COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001
CHAPTER 6 TROUBLESHOOTING
6-113
4.1.40 E243
Main controller PCB
1) Turn off and then on the power switch. Is the problem corrected?
YES: End.
NO: Replace the Main controller PCB.
Control panel PCB
2) Try replacing the control panel PCB. Is the problem corrected?
YES: End.
4.1.41 E248 (iR7200)
EEPROMs
1) Are the EEPROMs connected securely to the sockets of the reader
controller PCB?
NO: Connect them securely.
Data (faulty)
2) Excute the following in service mode:
COPIER>FUNCTION>CLEAR>R-CON. Is the problem cor-
rected?
Thereafter, be sure to enter the service mode data.
YES: Check the operation; if normal, end the work.
EEPROM, Reader controller PCB
3) Try replacing the EEPROM. Is the problem corrected?
Thereafter, be sure to enter the service mode data newly.
YES: End.
NO: Check the wiring; if normal, replace the reader controller PCB.
4.1.42 E251 (Indicated if iR8500)
Foreign matter
1) Is there foreign matter that prevents the rotation of the fan around
the inverter cooling fan?
YES: Remove the foreign matter.
Connector
2) Is the connector J1110 on the Reader controller PCB connected se-
curely?
NO: Connect the connector securely.
Inverter cooling fan (FM9), Reader controller PCB
3) Try replacing the inverter cooling fan (FM9). Is the problem cor-
rected?
NO: End.
YES: Replace the Reader controller PCB.
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