Parallel Wrap Test - Lexmark 11A4006 - Optra K 1220 B/W Laser Printer Service Manual

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same numbers for DRAM. The busy indicator flashes indicating
the test is in process. The test runs continuously.
2. Press Return or 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 busy 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 interconnect cable and install the wrap
plug (P/N 1319128).
2. Select the Parallel Wrap Test from the Hardware Tests menu.
The busy indicator flashes indicating the test is in progress. The
test runs continuously until canceled.
Each time the test finishes, the screen updates. 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:
Sync Busy Error
Byte Interrupt Request Error
Strobe Interrupt Request Error
Init Fail Error
Init Busy Error
Init Rise Error
Host Busy Error
RAM Data FF Error
RAM Data AA Error
RAM Data 00 Error
Diagnostic Aids 3-7

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