Canon 1730, Service Manual

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Troubleshooting > Test Print > How to View the Test Print > Solid white (TYPE=04)
Troubleshooting > Test Print > How to View the Test Print > Solid white (TYPE=04)
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Solid black (TYPE=03)
Check item Check method Assumed cause
Transfer failure
Check the evenness of halftone
density. Check whether uneven image
or foggy image appears.
Transfer system failure is considered.
White line
Check whether white lines appear on
the image.
Developing system failure is considered.
Uneven pitch
Check whether lines appear on the
image in the horizontal scanning
direction.
Drum failure, developing system failure,
laser exposure system failure or drive-
related failure is considered.
Uneven
density
(rear/front)
Check the density difference between
the front and rear sides.
Drum failure or developing system failure is
considered.
F-6-3
T-6-6
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Solid white (TYPE=04)
Check item Check method Assumed cause
Fogging
Check whether foggy image appears in
the blank area.
Drum failure, laser exposure system failure
or developing system failure is considered.
F-6-4
T-6-7