Lexmark Optra Color 1200, Service Manual

Page: 117 / 245

Repair Information
4-3
5050-001
Parts not to be touched
Any part where the mounting screws are painted red, such as the
printhead, must not be removed, disassembled or adjusted.
Adjustment Procedures
The transfer belt tracking adjustment is the only mechanical
adjustment in this printer. The other adjustments are in the form of
printer setup settings entered into the printer from the diagnostic
mode. This section describes these adjustments and lists the menus
and values for each. To make the adjustment you will be directed to
the appropriate page in the Diagnostic Aids chapter.
Transfer Belt Tracking Adjustment
Make this adjustment whenever you replace the transfer belt unit or
when the belt is not tracking properly.
As you check and make this adjustment:
•
Be careful not to scratch or leave fingerprints on the belt.
•
Do not expose the photosensitive drum kit to direct light.
To check belt tracking:
1. Enter the diagnostic mode.
2. Select Transfer Belt Adjustment.
3. Select the time you want the belt to run (seconds), and let the
belt run.
After the belt stops, check for a minimum clearance between the belt
and the right hand stopper. If the belt tracks against either the right
or left stopper you need to make the adjustment.