CHAPTER 11 TROUBLESHOOTINGCOPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)11-90Figure 11-704303132333435363738REGISTLE_BLANKPRIMARYIP_OFSTPW_OFSTIP_ADJLENS_ADJPREX_LPLAMP_ADJFB5-27774. Clearing the Error Code from MemoryIf 'E000', 'E001', 'E002', or 'E003' is indicated, remove the cause of the error, and clear thememory.1) Turn on the power while shorting JP103 and JP104 on the DC controller PCB with a screw-driver.• The display will indicate 'F'.Figure 11-7032) Turn off and then on the power switch to check the copying operation.SERVICEJP104JP104JP103Caution:When a fault associated with 'E000', 'E001', 'E002', or 'E003' is detected, the power will auto-matically turn off. It will still turn off even when turned on without removing the fault.To find out which code turned off the power, disconnect J207 from the composite powersupply PCB, and turn on the power.Figure 11-704 shows the label attached behind the front upper cover. At the factory, eachindividual machine is adjusted, and its adjustment values are recorded on the label.If you have entered any new value in the field, be sure to record it on the label. If you havereplaced the DC controller PCB, be sure to enter the values recorded on the label in servicemode.If you have replaced the drum unit, composite power supply PCB, or pre-exposure PCB, onthe other hand, be sure to enter the values recorded on the label of the appropriate part. Then,record these values on the service label.