Troubleshooting Items
Remedy for Image Failure
When an image failure occurs, perform the remedy by referring to the User's Guide.
• User's Guide > Top page > Troubleshooting > When You Cannot Print Properly
NOTE:
URL of User's Guide:
http://canon.com/oip-manual
Recurring faulty image
Overview
Foreign matters or lines on rollers along the paper feed path may cause faulty images in the vertical scanning direction.
Field Remedy
See the roller pitches listed in the tables below to clean and/or replace the corresponding parts.
CAUTION:
Since the Primary Charging Roller, Photosensitive Drum, and Developing Roller are located inside the cartridge and they
cannot be cleaned on a single part basis, replace the cartridge itself.
Roller pitch Parts Symptom
Soiling White spots Soiled back Fixing failure
Approx. 39 mm Transfer Roller - Occurs Occurs -
Approx. 28 mm Primary Charging Roller Occurs Occurs - -
Approx. 63 mm Photosensitive Drum Occurs Occurs - -
Approx. 26 mm Developing Roller Occurs Occurs - -
Approx. 57 mm Fixing Film Occurs Occurs - Occurs
Approx. 45 mm Pressure Roller Occurs - Occurs Occurs
Confirming Nip Width
Overview
Although the nip width of the Fixing Unit cannot be adjusted with this machine, it can be checked.
By checking the nip width when fixing failure occurs, it is possible to judge whether there is a problem with the Fixing Unit.
Field Remedy
Check the nip width of the Fixing Unit by the following procedure.
1. Print a solid black image on a A4/LTR size paper using the cartridge same as that used with this machine and bring
it to the customer site.
2. Load the solid black printed paper with its printed side facing down on the Pickup Tray of the machine.
3. Execute the engine test print.
4. When the leading edge of the printed paper comes out from the delivery outlet, turn OFF the power.
5. Open the Cartridge Door approx. 60 seconds after the power is turned OFF, and pull out the printed paper from the
machine.
6. Troubleshooting
226
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