Lexmark M410 - Optra B/W Laser Printer Service Manual page 84

4045-XXX
ROM Memory Test
The ROM Memory Test is used to check the validity of the RIP code
and fonts.
To run the ROM Memory Test:
1. Select ROM Memory Test from the menu. P and F represent the
same numbers for DRAM.
– The power indicator blinks indicating the test is in process.
The test runs continuously.
2. 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 three
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 on
the screen.
Parallel Wrap Test
This test is used with a wrap plug to check operation of the parallel
port hardware. Each parallel signal is tested.
To run the Parallel Wrap Test:
1. Disconnect the parallel interface cable and install the wrap plug
(P/N 1319128).
2. Select the Parallel Wrap Test from the menu.
– The power indicator blinks indicating the test is in progress.
The test runs continuously until canceled.
3-10
Service Manual