Solid Black (Type=7); Horizontal Line (Type=8/9/10) - Canon imageRUNNER ADVANCE 8105 Series Service Manual

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Solid black (TYPE=7)

Check item Check method
Check the evenness of halftone
Transfer failure density. Check whether uneven image
or foggy image appears.
Check whether lines appear on the
Uneven pitch image in the horizontal scanning
direction.
Uneven
Check the density difference between
density
the front and rear sides.
(rear/front)
6
Troubleshooting > Test Print > How to View the Test Print > Horizontal line (TYPE=8/9/10)
F-6-5 F-6-5
Assumed cause
Transfer system failure or Pre-transfer
Charging Assembly failure is considered.
Drum failure, developing system failure,
laser exposure system failure or drive-
related failure is considered.
Primary Charging Assembly failure, drum
failure or developing system failure is
considered.
6
Troubleshooting > Test Print > How to View the Test Print > Horizontal line (TYPE=8/9/10)
■

Horizontal line (TYPE=8/9/10)

Check item Check method
Check whether black lines appear on
Black line
the image.
Check whether white lines appear on
White line
the image.
Check whether lines appear on the
Uneven pitch image in the horizontal scanning
direction.
Uneven
T-6-6 T-6-6
Check the density difference between
density
the front and rear sides.
(rear/front)
6-5
F-6-6 F-6-6
Assumed cause
Laser light path failure, grid failure,
developing system failure, cleaning (drum,
ETB) failure or Pre-transfer Charging
Assembly failure is considered.
Primary Charging Wire failure or developing
system failure is considered.
Drum failure, developing system failure,
laser exposure system failure or drive-
related failure is considered.
Primary Charging Assembly failure, drum
failure or developing system failure is
considered.
T-6-7 T-6-7
6-5