Lexmark X642E, Service Manual, Page: 231 / 525

Diagnostic aids
3-21
7002-xxx
Touch Back to return to Diagnostics Menu.
Transfer
The transfer can be adjusted to Low, Medium, or High. The default setting is Medium.
Touch Back to return to Diagnostics Menu.
Print Contrast
The print contrast setting controls the developer voltage offset.
The print contrast can be adjusted to Low, Medium, or High. The default setting is Medium.
Touch Back to return to Diagnostics Menu.
Charge Roll
The charge roll can be adjusted to Low, Medium, or High. The default setting is Medium.
Touch Back to return to Diagnostics Menu.
Gap Adjust
The setting adjusts the minimum gap between sheets. Increasing this value may reduce curl of some printed
media and eliminate some output bin stacking problems. However, increasing this value also results in slower
overall performance, measured in pages per minute. The range of values is 0 to 255, and the default value is 0.
Touch Back to return to Diagnostics Menu.
EVENT LOG
Display Log
The event log provides a history of printer errors. It contains the 12 most recent errors that have occurred on the
printer. The most recent error displays in position 1, and the oldest error displays in position 12 (if 12 errors have
occurred). If an error occurs after the log is full, the oldest error is discarded. Identical errors in consecutive
positions in the log are entered, so there may be repetitions. All 2xx and 9xx error messages are stored in the
event log.
To view the event log:
1.
Touch to select Display Log from EVENT LOG.
Up to three error codes display at a time. Touch to display additional information, if available.
2.
Touch Back to return to the EVENT LOG menu.