Lexmark Optra 4049 Series, Service Manual

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4049-XXX
8. Carefully remove the duplex unit from the printer without dis-
turbing the position of the paper on the top of the duplex tray.
9. Without changing the position of the page, hold it to the top of
the paper tray and remove the paper tray.
10. Measure from the leading edge of the page to the leading edge
of the paper stack in the tray. This measurement should be
75 mm or less. If it is larger than 75 mm, there is a drive prob-
lem in the duplex unit or in the tray top cover.
11. Select [CONTINUE].
12. Perform the test several times to verify that the measurement is
accurate.
13. Press Return to return to the Diagnostics mode main menu.
Envelope Enhance
Use this procedure to set the fuser solenoid power level to low,
medium, or high. Increase the level to reduce envelope wrinkling, or
decrease the level to reduce solenoid noise.
1. Enter Diagnostics mode.
2. Select [PRINTER SETUP].
3. Select [Envelope Enhance].
4. Select [Low], [Medium], or [High].
5. Press Return to return to the Diagnostics mode main menu.
Envelope Print Test
Use Envelope Print Test to test the E or Auxiliary feeder.
Envelope Print Test generates one printout: a page of ripple print.
Printing will occur only on the first page or envelope.
1. Enter Diagnostics mode.
2. Select [PRINT TESTS].
3. Select [Envelope Print Test].
4. Select [Single] or [Continuous].
5. Select [CANCEL] to stop continuous print.
6. Press Return to return to the Diagnostic mode main menu.