Lexmark Optra E 4026-0 Series Reference Handbook page 151

Print Test 3
This test generates two printouts: a solid black page, the second page
is a gray scale page. The gray scale can be used to spot developer
band problems.
1. Enter Diagnostics mode.
2. Select [PRINT TESTS].
3. Select [Print Test 3].
4. Select [Single] or [Continuous].
5. Select [Cancel] to stop continuous print.
6. Press Return to return to the Diagnostics mode main menu.
Envelope Print Test
Select Envelope Print to pick an envelope from Manual Envelope if a
Feeder is not installed, an envelope from the Envelope Feeder (if the
Feeder paper size is set for an envelope size). Text prints on the first
envelope. If Single has been selected, the test stops after the first
envelope or sheet of paper. If you select Continuous, envelopes or
paper will continue to feed, but will not be printed, until the test is
cancelled.
Quick Disk Test
This test performs a non-destructive write/read on one block per track
on the disk. The test will read one block on each track, save the data,
and proceed to write and read four test patterns to the bytes in the
block. If the block is good then the saved data will be written back out to
the disk.
The Quick Disk Test does not destroy data on the disk; existing data is
read and stored prior to the testing of each track, and then rewritten
after the track is tested.
1. Enter Diagnostics mode.
2. Select [DEVICE TESTS].
3. Select [Quick Disk Test].
4. The display will indicate [Test Passed] or [Test Failed].
5. Press Return to return to Diagnostics mode main menu.
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Laser Printer Reference Handbook