Canon imageRUNNER ADVANCE C3500 III Series, Service Manual, Page: 310 / 1252

NOTE:
Various settings can be configured in the following service mode.
• The print by developing color
COPIER > TEST > PG > COLOR-Y
COPIER > TEST > PG > COLOR-M
COPIER > TEST > PG > COLOR-C
COPIER > TEST > PG > COLOR-K
• The density of test print
COPIER > TEST > PG > DENS-Y
COPIER > TEST > PG > DENS-M
COPIER > TEST > PG > DENS-C
COPIER > TEST > PG > DENS-K
Check item Check method Assumed cause
Transfer failure Check that the transfer failure does not appear on entire image. Failure of ITB (scratch, dirt)
Failure of Primary Transfer Roller (scratch, dirt)
Failure of Secondary Transfer Roller (scratch,
dirt)
Black line
(color line) Check that black line does not appear on entire image. Scratch on Photosensitive Drum
Dirt on Primary Charging Roller
White line Check that white line does not appear on entire image. Failure of ITB Unit
Failure of Secondary Transfer Outer Roller
Dirt on laser light path
Uneven pitch Check that uneven pitch does not appear on entire image. Failure of Drum Unit
Uneven density Check that uneven density does not appear on entire image. Dirt on Dustproof Glass
Deterioration of ITB
■ Grid (TYPE=6)
This test print is for mainly checking the color displacement, right angle accuracy and straight line accuracy.
Check items Check method Assumed cause
Uneven density Check that uneven density does not appear on solid area of each
color Failure of Laser Scanner Unit
Failure of developer in Drum Unit
Failure of Primary Transfer Roller
Black line (color line) Check that black line (color line) does not appear on solid area of
each color
Scratch on Photosensitive Drum
Dirt on Primary Charging Roller
White line Check that white line does not appear on solid area of each color Failure of ITB Unit
Failure of Secondary Transfer Outer Roller
Dirt on Laser Light Path
6. Troubleshooting
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