COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001CHAPTER 6 TROUBLESHOOTING6-954.1.3 E0024.1.4 E003----------1) Turn on the power switch, and make the following selections in ser-vice mode to reset E002/E003:COPIER>FUNCTION>CLEAR>ERR. Then turn off and then onthe power switch. Is any of the following true?• The fixing heater fails to go on.• E002 or E003 is indicated.YES: See the discussions of the respective item.----------2) Is the contact of the connectors on the DC controller PCB and theconnector (J505) inside the fixing assembly good? In addition, isthe wiring from the thermistor to the DC controller PCB good?NO: Correct the connection.Main thermistor (TH1)3) Is the thermistor in even contact with the fixing upper roller?NO: Mount it properly.Main thermistor (TH1; dirt)4) Clean the contact face of the thermistor. Is the problem corrected?YES: End.Main thermistor (TH1)5) Try replacing the thermistor. Is the problem corrected?YES: End.Fixing heater, DC controller PCB6) Try replacing the heater. Is the problem corrected?YES: End.NO: Replace the DC controller PCB.
