Lexmark C91 Series, Service Manual

Page: 163 / 493

Diagnostic aids
3-13
5055-xxx
The power indicator blinks indicating the memory test is in process.
The printer runs this test continually. The test can be terminated by
powering off the printer. Each time the test finishes, the screen is
updated with the result. If the test is successful, the Pass Count
increments by 1. If the test fails, a failure message displays for
approximately three seconds and the Fail Count increments by 1.
Once the maximum pass count or fail count is reached, the test
stops and final test results display.
ROM Memory Test
The ROM Memory Test checks the validity of the RIP code and
fonts. When this test is selected from the operator panel, the printer
begins testing ROM memory and the following message is
displayed.
Terminology:
P:###### represents the number of times the memory test finishes
successfully. Initially 000000 displays for ######. The maximum
pass count is 999,999.
F:##### represents the number of times the memory test finishes
with errors. Initially 00000 displays for #####. The maximum fail
count is 99,999.
The power indicator blinks indicating the memory test is in process.
The printer runs this test continually. The test can be terminated by
powering off the printer. Each time the test finishes, the screen is
updated with the result. If the test is successful, the Pass Count
increments by 1. If the test fails, a failure message displays for
approximately three seconds and the Fail Count increments by 1.
Once the maximum pass count or fail count is reached, the test
stops and final test results appear.
•
ROM Checksum Error
•
ROM Burst Read Error
Press Return or Stop to exit the test.
ROM Memory Test
P:##### F:#####