Adjustment; Skew Adjustment - Epson AcuLaser C9200N Service Manual

EPSON AcuLaser C9200N

5.2 Adjustment

5.2.1 Skew Adjustment

PURPOSE
Adjust the gradient of the PH unit of each color and prevent the image skew from
occurring.
PROCEDURE
1. After replacing or reinstalling the PH units, start the printer in the maintenance
mode.
2. The Calibration is executed automatically.
3. After finishing the Calibration, print the Maintenance Status Sheet and check the
each value of the Y/M/C by the Registration items which are at the bottom of the
sheet.
This value shows the adjusting the dial rotation step number to adjust the skew.
4. When the displayed value is out of the standard, open the front cover and adjust by
turning the Skew adjusting dial (screw) on only the displayed value.
Standard: ± 4
Adjusting direction: Positive value = Clockwise/Negative value =
Counterclockwise
5. Close the front cover and then the Calibration is executed automatically again.
6. After finishing the Calibration, print the Maintenance Status Sheet again and
check that Y/M/C value of the "Registration" is within the standard. (In case Y/M/
C value of the "Registration" is out of the standard, adjust again from the
procedure 4)
Skew Adjustment corrects the gradient of the PH unit Y, M,
C H E C K
P O I N T
C based on the PH unit K. Correction for the PH unit K as a
standard is not required.
ADJUSTMENT
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Figure 5-1. Skew Adjustment
Figure 5-2. Maintenance Status Sheet
Adjustment
Revision D
4038F3C006DB
Registration
315
Confidential