Top Margin And Duplex Quick Tests; Transfer; Wrap Tests - Lexmark Optra E 4026-0 Series Reference Handbook

Top Margin and Duplex Quick Tests

The Top Margin and Duplex Quick Test are used together to adjust the
duplex front-to-back registration. Make sure the non-duplex page
registration is correct before adjusting the duplex top margin.
1. Enter Diagnostics mode.
2. Select [DUPLEX TESTS].
3. Select [Top Margin].
4. Select [+] or [-] to raise or lower the back image 0.01 inches per
increment.
5. Press Return to return to the Diagnostics mode main menu.
The Duplex Quick Test is used to verify the Duplex Top Margin.
1. Enter Diagnostics mode.
2. Select [DUPLEX TESTS].
3. Select [Duplex Quick Test].
4. Press Return to return to the Diagnostics mode main menu.
There is some variation in the image position from sheet to sheet. Print
three or four test pages at each setting.

Transfer

This setting varies the transfer voltage offset slightly. In normal
environments it does not result in a visible difference in the printout. In
extreme environments with unusual papers, this setting may be helpful.
Do not change this setting unless replacing the transfer roll assembly
did not correct the problem.
1. Enter Diagnostics mode.
2. Select [PRINTER SETUP].
3. Select [Transfer].
4. Select [Low], [Medium], or [High].
5. Press Return to return to the Diagnostics mode main menu.

Wrap Tests

The Wrap Tests check the circuits used to communicate with the host
computer.
Note: The Parallel wrap test does not test all signals used for bidirec-
tional communication. Contact Lexmark Technical Support for instruc-
tions on running the Parallel Confidence Test.
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Laser Printer Reference Handbook