Parallel Wrap Test - Lexmark Optra SC 1275 Service Manual

Each time the test finishes, the screen is updated with the result. If
the test passes, then the Pass Count increments by 1. However, if
the test fails, then one of the following messages display for approxi-
mately 3 seconds and then the Fail Count increments by 1.
•
ROM Checksum Error
•
ROM Burst Read Error
Once the maximum pass count or fail count is reached, the test
stops, the power indicator turns on solid and the final test results dis-
play. Press Return or Stop to exit the test.

Parallel Wrap Test

This test uses a wrap plug to check the operation of the parallel port
hardware. Each parallel signal is tested.
To run the wrap test:
1. Disconnect the parallel interface cable, and install the parallel
wrap plug.
2. Select HARDWARE TESTS from the Diagnostics Menu.
3. Select Parallel Wrap to initiate the Parallel Wrap Test.
The following screen displays and the printer begins testing the par-
allel hardware for the first time:
Parallel Wrap
P:###### F:#####
•
P:###### represents the number of times the memory test has
passed (finished successfully). Initially 000000 displays for
######. The maximum pass count is 999,999.
•
F:##### represents the number of times the memory test has
failed (finished with errors). Initially 00000 displays for #####.
The maximum fail count is 99,999.
The power indicator blinks indicating the memory test is in progress.
The printer continually runs the same test until canceled from the
control panel by pressing Return or Stop.
Diagnostic Information 2-53