Device Tests; Quick Disk Test; Disk Test/Clean; Flash Test - Lexmark C77x Service Manual

C77/c78 series
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DEVICE TESTS

Quick Disk Test

This test performs a non-destructive read/write on one block per track on the disk. The test reads one block on
each track, saves the data, and proceeds to write and read four test patterns to the bytes in the block. If the
block is good, the saved data is written back to the disk.
To run the Quick Disk Test:
1.
Select Quick Disk Test from DEVICE TESTS in the Diagnostics mode.
The power indicator blinks while the test is in progress.
Quick Disk Test/Test Passed is displayed if the test passes and the power indicator turns on solid.
Quick Disk Test/Test Failed is displayed if the test failed and the power indicator turns on solid.
2.
Press Back (

Disk Test/Clean

Warning: This test destroys all data on the disk and should not be attempted on a good disk. This test may run
approximately 1½ hours depending on the disk size.
To run the Disk Test/Clean Test:
1.
Select Disk Test/Clean from DEVICE TESTS in the Diagnostics mode.
Files will be lost/Go or Stop? is displayed to warn the user.
2.
To exit the test immediately and return to DEVICE TESTS, press Back (
the test, press Select (
is selected, Disk Test/Clean/BAD:000000 00% is displayed. The screen updates periodically,
If
indicating the percentage of test completed and the number of bad blocks found.
3.
The power indicator blinks during the test. The test can be canceled anytime during the test by pressing
Back (
) or Stop (
Once the test is complete, the power indicator turns on solid and a message displays.
xxxx Bad Blocks/yyyyyy Usable is displayed if fewer than 2000 bad blocks are detected. xxxx
indicates the number of bad blocks, and yyyyyy indicates the number of usable blocks.
xxxx Bad Blocks/Replace Disk is displayed if more than 2000 bad blocks are detected. The disk
cannot be recovered because too many bad blocks exist on the disk.
4.
Press Back (

Flash Test

This test causes the file system to write and read data on the flash to test the flash.
Warning: This test destroys all data on the flash because the flash is reformatted at the end of the test.
To run the Flash Test:
1.
Select Flash Test from DEVICE TESTS in the Diagnostics mode.
The power indicator blinks while the test is running.
Flash Test/Test Passed is displayed if the test passes and the power indicator turns on solid.
Flash Test/Test Failed is displayed if the test fails and the power indicator turns on solid.
2.
Press Back (
) or Stop (
) to return to the Device Tests menu.
).
).
) or Stop (
) to return to DEVICE TESTS.
) or Stop (
) to return to DEVICE TESTS.
) or Stop (
). To continue with
Diagnostic aids
5061
3-25

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