Lexmark C935 - Page 518

4-220 Printer Service Manual
5057-XXX
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5
Perform the skew rough setup printhead adjustment.
1. Enter the Diagnostics Menu.
2. Select ENGINE ADJUST.
3. Select RegCon adjust
4. Select Control setup cycles
5. Select Cycle result values
Locate the following new values for the following settings:
Y- Skew adjustment
M- Skew adjustment
C- Skew adjustment
K- Skew adjustment
Turn the appropriate printhead adjustment screws, located
behind the waste toner cartridge, the number of clicks
(rotation until a snap sound is heard and felt) based on the
above settings.
+values require turning the screw Clockwise
- values require turning the screw Counter Clockwise.
EG: Y-Skew adjustment 10. Turn the screw CW 10 clicks.
EG: Y-Skew adjustment -10. Turn the screw CCW 10 clicks.
Have the appropriate printhead adjustment screw been
adjusted?
Re-perform step 1.
If the test fails then
replace the
printhead.
See “Printhead
assembly
removal” on
page 4-104.
Once the
printhead is
replaced then re-
perform the entire
RegCon
procedure.
See “Color
registration
(RegCon)” on
page 4-214.
Go to step 6.
6
Check the image density sensor assembly connection.
Is the above component properly connected
Go to step 7. Replace the
connection.
Step Check Yes No
K
C
M
Y
Printhead adjusting screw