Lexmark Optra W810, Руководство по обслуживанию

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Diagnostic Aids
3-7
4023-001
ROM Memory Test
The ROM Memory Test is used to check the validity of the RIP code
and fonts.
1. Enter the Diagnostic mode. See “Diagnostics Mode” on
page 3-1 .
2. Select [HARDWARE TESTS].
3. Select [ROM Memory Test]. P and F represent the same
numbers for DRAM.
– The power indicator blinks indicating the test is in process.
The test runs continuously.
4. Press Return/Stop to exit the test.
Each time the test finishes, the screen updates with the result. If the
test passes, the Pass Count increases by 1, however if the test fails,
one of the following messages displays for approximately 3
seconds:
ROM Checksum Error
ROM Burst Read Error
Once the maximum pass count or fail count is reached, the test
stops with the power indicator on solid. The final results display.
Parallel Wrap Test
This test is used with a wrap plug to check operation of the parallel
port hardware. Each parallel signal is tested.
1. Disconnect the parallel interface cable and install the wrap plug
(P/N 1319128).
2. Enter the Diagnostic mode. See “Diagnostics Mode” on
page 3-1 .
3. Select [HARDWARE TESTS].
4. Select the [Parallel Wrap Test].
– The power indicator blinks indicating the test is in progress.
The test runs continuously until canceled.