Lexmark Optra N 4040, Reference Handbook

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Disk Test/Clean
This is a 90 minute test that should be performed only on a disk that
contains bad data and is therefore unusable.
This test destroys all data on the disk by doing a multi-pass write/read
on every block of the disk. Bad blocks are flagged and removed from
use. If over 2000 bad blocks are found, the test stops and the display
indicates the disk must be replaced.
A message describing test progress is displayed during the test.
To test or clean the disk:
1. Enter Diagnostics mode.
2. Select [DEVICE TESTS].
3. Select [Disk Test/Clean].
4. Select [CONTINUE] to start the test, or [CANCEL] to return to
Diagnostics mode main menu.
5. Select [CANCEL] to interrupt the test.
6. Press Return to return to the Diagnostics mode main menu.
Error Log
The list of the six most recent errors is displayed. The newest error is
displayed in position one. In a full log, position six is the oldest error. If
more than six errors are received, the oldest error is discarded. If a
position is all zeros, then not enough errors have occurred to fill up the
log to that position. When a new error is received a check is done to see
if that error is identical to the last error received. If so, it is not recorded.
Identical errors may appear in the log if there were intervening errors.
The following error messages are stored in the error log.
• 20, 21, 22, 23, 24, 25 Paper Jam
• All 1XX and 9XX messages
To run the error log:
1. Enter Diagnostics mode.
2. Select [ERROR LOG].
3. Select [CLEAR] and then [CONTINUE] to clear the error log.
4. Press Return to return to the Diagnostics mode main menu.