Lexmark 248X-200 series, Service Manual

Page: 64 / 172

4-2
Service Manual
24XX-200
•
Prevent ESD-sensitive parts from being accidently touched by
other personnel. Install printer covers when not working on the
printer, and do not put unprotected ESD-sensitive parts on a
table.
•
Keep all ESD-sensitive parts in a grounded metal cabinet
(case).
•
Low humidity increases static electricity during cold weather.
Adjustments
CAUTION: Be sure to unplug the power cord whenever
you are working on the printer with one of the covers
removed.
Printhead-to-platen gap adjustment
Perform the printhead-to-platen gap adjustment after replacing the
carrier, platen, lower pinch roller, ribbon drive rack gear, left side
frame, right side frame, paper separator, lower feed roller, or paper
guide.
1. Turn the printer off and remove all covers, with the exception of
the bottom cover. See “Covers, removals” on page 4-5 .
2. Remove the ribbon cartridge and paper.
3. Remove the Lock Tite (red) from the Gap Adjust bushings on
both the left and right side of the printer.
4. Set the Forms Thickness lever to position 1, by pushing it
toward the back of the printer as far as it will go.
5. Move the printhead to the left edge of the rubber on the platen.
6. Shift the left Gap Adjust bushing clockwise as far as it will go.
7. Shift the right Gap Adjust bushing counterclockwise as far as it
will go.
Note: At this time, the nose of the printhead should be touching the
platen.