Diagnostic Aids - Lexmark C935 Service Manual

3. Diagnostic aids

This chapter explains the tests and procedures to identify printer failures and to verify that repairs have
corrected the problem.
Accessing service menus
Access the following menus to identify problems with the printer and run diagnostic tests.
Diagnostics Menu
Configuration Menu
1. Turn off the printer.
2. Press and hold the and
buttons simultaneously.
3. Turn on the printer.
4. Release the buttons after 10
seconds.
1. Turn off the printer.
2. Press and hold the Select
and Right Arrow buttons
simultaneously.
3. Turn on the printer.
4. Release the buttons after 10
seconds.
The Diagnostics Menu group consists of menus,
settings, and operations that are used to diagnose
various printer problems.
Note: While the Diagnostics Menu Group is active,
all host interfaces are offline.
The Configuration Menu group contains a set of
menus, settings, and operations which are
infrequently required by a user. Generally, the
options made available in this menu group are
used to configure a printer for operation.
5057-XXX
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Diagnostic aids