Canon iR C3200 Series, Portable Manual

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Chapter 5
5-2
5.1.4
Gradations (TYPE=4)
0006-5696
Use this test print to check gradation, fogging, white lines, or uneven density at the front/rear.
a. Gradation
If the reproduction of 16 gradations is not as expected, suspect a fault in the drum unit or the laser exposure system.
b. Fogging
If fogging is limited to the white area of the following illustration, suspect a fault in the drum unit or the laser
exposure unit.
c. Vertical White Lines/Black Lines
If a white line is found in the image, suspect a fault in the developing system.
d. Uneven Density at the Front/Rear
If uneven density is found at the front/rear, suspect a fault in the drum unit, laser exposure system, or transfer unit.
F-5-1
5.1.5
Full Halftone (TYPE=5)
0006-5698
Use this test print to check transfer failure, black lines, white lines, or irregular intervals.
MEMO:
1. You can select a specific color to develop in user mode using 'COLORY/M/C/K' in service mode
(COPIER>TEST>PG).
2. If you want to change the density of the test print, use the following in service mode: TEST>PG>DENS-Y/M/C/K.
a. Transfer Failure
If transfer failure occurs, suspect a fault in the transfer (intermediate/secondary) unit.
b. Uneven Density in Horizontal Direction
If uneven density occurs in horizontal direction, suspect a fault in the photosensitive drum drive unit, drum ITB
motor, or drum unit.
c. Uneven Density in Vertical Direction
If uneven density occurs in horizontal direction, suspect dirt on the LDE lens, a fault in the drum unit, or
deterioration of the intermediate transfer belt.
16 gradations