Canon imageRUNNER ADVANCE 6055 Series, Руководство по обслуживанию

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Troubleshooting > Test Print > How to View the Test Print > 17 gradations (TYPE=2/3)
Troubleshooting > Test Print > How to View the Test Print > 17 gradations (TYPE=2/3)
How to View the Test Print
■ Grid (TYPE=1)
Check item Check method Assumed cause
Right angle
accuracy/
Straight line
accuracy
Check whether lines in the horizontal/
vertical scanning directions are
paralleled to the paper and these lines
are at right angles to one another.
Feed system failure or Laser Scanner Unit
failure is considered.
Side
registration
Check the left margin.
Floor at the installation site is extremely
distorted, or the feed system failure is
considered.
Magnification
ratio
Check whether the grid is printed at
9.99mm intervals. (Check the image on
the second side at duplex printing.)
ETB and rollers’ feed system failure or
laser exposure system failure (drum, Laser
Scanner) is considered.
F-6-1
T-6-2
■
17 gradations (TYPE=2/3)
Check item Check method Assumed cause
Gradation
Check whether gradation in density is
made appropriately.
Drum failure, laser exposure system failure
or developing system failure is considered.
Black line
Check whether black lines appear on
the image.
Laser light path failure, grid failure,
developing system failure, cleaning (drum,
ETB) failure or Pre-transfer Charging
Assembly failure is considered.
White line
Check whether white lines appear on
the image.
Primary Charging Wire failure or developing
system failure is considered.
F-6-2
T-6-3