Button Test; Charge Roll; Defaults - Lexmark Optra E 4026-0 Series Reference Handbook

Button Test

To test the operator panel buttons:
1. Enter Diagnostics mode.
2. Select [HARDWARE TESTS].
3. Select [Button Test].
4. Press each button. [Closed] is displayed until the button is
released. Then [Open] is displayed.
5. Press Return to return to the Diagnostics mode main menu.

Charge Roll

This setting varies the charge roll bias. It is used to reduce background
on the output. In general, if there is background and the environment is
hot and humid, change the setting to low; if the environment is cool and
dry, change the setting to high. If the background is not reduced, try
changing the setting the other way.
1. Enter Diagnostics mode.
2. Select [PRINTER SETUP].
3. Select [Charge Roll].
4. Select [High], [Medium] or [Low].
5. Press Return to return to the Diagnostics mode main menu.

Defaults

Allows setting the following defaults to U.S. or Non-U.S. values.
U.S.
Letter size paper
# 10 envelopes
Symbol Set Roman-8
1. Enter Diagnostics mode.
2. Select [PRINTER SETUP].
3. Select [Defaults].
4. Select [U.S.] or [NON U.S.].
5. Press Return to return to the Diagnostics mode main menu.
NON-U.S.
A4 paper
DL envelopes
Symbol Set PC-850
8-17
4049-XXX