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6820 Series 80-Column Printer User's Manual
If none of the listed conditions are indicated by the beep codes and
LEDs, yet the printer does not perform properly, then perform a printer
self-test. Press and hold (for several seconds) both Form Feed and the
Set Page buttons at the same time, until the printer beeps and all
indicator lights come on. The lights change throughout the test, as it
progresses.
At the end of the self-test, the printer generates a report. This report
verifies the following:
•
errors detected during self-test
•
error history
•
communication configuration
If the printer self-test report does not print, reset the printer. If the report
does print after resetting, then the printer is all right and the reason the
printer does not respond to PC print requests is probably
communications or PC related. If the report is partially completed, and a
printer error occurs during the printing of self-test, see the Printer Failure
Indicators table on
page 82
Perform a power-on-self-test (POST) to test for errors either by resetting
the printer or powering it up. If errors occur, audible error codes, along
with indicator light status, are produced during POST (see the POST
Error Codes table on
If the POST completes without error, try the printer self-test again. If the
self-test prints correctly, but the printer does not respond to the PC, then
the problem may be related to communications or PC problems.
Testing Communications/PC
Use the self-test report to verify that the communications protocol
options, selected at the printer, match those expected by the host. For
information on the self-test report see
page
86. If communication protocol options are incorrect, reconfigure
the printer as described in
page
29.
Chapter 5 — Troubleshooting and Maintaining the 6820
for the cause of the printer failure.
page
83).
"Running the Self-Test" on
"Setting the 6820 Configuration" on
79
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Table of Contents
Troubleshooting
