Lexmark T522 Service Manual - Page 129
Serial Port Service Check
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4520-xxx Serial Port Service Check Run the "Serial Wrap Test" on page 3-13. Note: The Serial Wrap Test is designed to check the serial port hardware by using a wrap plug (P/N 1329048) and invoking the Serial Post Diagnostic Test. The test helps isolate the printer from the serial cable and host. The test provides failure information on the display for approximately three seconds. If the test indicates a problem, replace the controller board. Diagnostic Information 2-101
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 |
Diagnostic Information
2-101
4520-xxx
Serial Port Service Check
Run the
“Serial Wrap Test” on page 3-13
.
Note:
The Serial Wrap Test is designed to check the serial port
hardware by using a wrap plug (P/N 1329048) and invoking the
Serial Post Diagnostic Test. The test helps isolate the printer from
the serial cable and host. The test provides failure information on the
display for approximately three seconds. If the test indicates a
problem, replace the controller board.