Canon iR C3200 Series Service Manual page 776

Chapter 16
- Check the window of the SALT sensor to see if it is free of dirt.
[Transfer System]
- Check the secondary transfer unit to see that it is free of foreign matter.
- Check the ITB/secondary transfer external roller for wear, scratches, dirt, and deformation.
- Check the blade of the ITB cleaning unit for tear, peeling, deformation, and stray toner.
[Fixing System]
- Check the fixing roller/pressure roller for wear, tear, and deformation.
- Check the fixing heater (main/sub) to see that it operates when power is turned on.
- Check the fixing thermistor to see that it is free of an open circuit.
- Check the thermal switch to see that there is electrical continuity.
[Paper Feeding System]
- Check to see if there is residual paper or other foreign matter.
- Check to see if there is a buildup of paper lint on the pickup, feeding, and separation rollers. Check the rollers for
wear, tear, dirt, and deformation.
- Check the pre-registration roller, registration roller (upper/lower), and paper path roller for wear, tear, and dirt, and
deformation.
- Check the feeding guide for wear, tear, dirt, and deformation.
- Check the paper for a bent leading edge, curling, waving, and absorption of moisture.
- Check the paper and/or transparency to see if it is a recommended type. If not, try a recommended type to see if the
symptom in question still occurs.
[Mechanical System]
- Check to see if the load of the drive system is excessive.
- Check the gears for wear and tear (chipping).
[Cassettes]
- Check to see if the cassettes are properly fitted. Check to see if the paper size is correctly set. Try replacing with a
normal cassette to see if the symptom in question still occurs.
- Check to see that the holding plate of the cassette moves smoothly and that it is free of deformation.
- Check to see that the side guide plate and the rear guide plate of the cassette are fitted correctly.
- Check to see if the switch of the cassette heater is turned on (if the machine is equipped with a cassette heater).
[Service Mode]
- Check to see if the various CCD adjustment values are as indicated on the service label.
(COPIER>ADJUST>CCD>all items)
- Check to see if the machine executes registration adjustment.
(COPIER>ADJUST>FEED-ADJ>REGIST/ADJ-REFE)
- Check to see if the machine correctly detects the internal temperature/humidity.
(COPIER>DISPLAY>ANALOG>TEMP/ABS-HUM)
- Check to see if the image read position is correctly adjusted.
(COPIER>ADJUST>ADJ-XY>ADJ-X/ADJ-Y/ADJ-Z)
- Check to see if the paper reference value data is correct.
(COPIER>FUNCTION>CST-ADJ)
- Check to see that the value of ADJUST/OPTION is as indicated on the service label.
- Check to see if 'error clear' has been initialized.
(COPIER>FUNCTION>CLEAR>ERR)
[General]
16-2