Canon imageRUNNER ADVANCE 6055 Series, Service Manual

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Technology > Image Formation System > Servicing > Troubleshooting
Technology > Image Formation System > Servicing > Troubleshooting
5-3) After the adjustment, output a test print and check the image.
When uneven density is seen: Go to 5-3).
When uneven density is not seen: Procedure is ended.
Not Use
F-2-117
5-4) Adjust the target vertical scanning direction (1 to 27) which uneven density is seen.
After selecting "S-LINE1 to 4", select the target vertical scanning window (1 to 27),
and enter the numerical value using "numerical keypad".
COPIER>FUNCTION>2D-SHADE>S-LINE1 (Level 2) Vertical scanning direction 1 to
8
COPIER>FUNCTION>2D-SHADE>S-LINE2 (Level 2) Vertical scanning direction 9 to
16
COPIER>FUNCTION>2D-SHADE>S-LINE3 (Level 2) Vertical scanning direction 17 to
24
COPIER>FUNCTION>2D-SHADE>S-LINE4 (Level 2) Vertical scanning direction 25 to
32
CAUTION:
• Be sure to switch the screen after entering the value. Unless the screen is switched,
the numerical value is not reflected. (Actually, the value is not reflected on the
screen, but it is retained internally.)
• When the vertical scanning direction (25 and 26 lines) is adjusted, the adjustment
value of the horizontal scanning direction (A to P) is also changed.
As the value is larger, the density becomes lighter. As the value is smaller, the density
becomes darker.
Enter the adjustment value in a unit of +/- 30 gradually, output the test pattern and
make adjustment while checking the test pattern. If the value is changed dramatically,
the image error (while line) may occur.