User's Manual Part 3

Chapter 6 — Troubleshooting
6822 Series 80-Column Printer User’s Manual 103
Power-On-Self-Test (POST) Errors
When you reset the printer, a POST runs to determine why the printer
might be failing. Audible error codes, along with indicator light status,
are produced during POST if an error occurs. See on POST Error Codes
on page 104.
To perform a POST
1 Open the printer case.
2 Insert the printer diagnostic cable into the phone jack on the printer
and then connect the 9-pin D-Sub plug to your PC. The cable is used
during POST to configure the printer, access printer diagnostics,
update software, and install new fonts.
1 set of 4 beeps Off Off 4 blinks 24 V over voltage fault (internal power
supply failure)
1 set of 13 beeps Off Off Off Configuration error
2 sets of 2 beeps Off 2 blinks 2 blinks printhead over temperature
2 sets of 3 beeps On Off Off Paper Out
2 sets of 4 beeps Off On Off Head Jam
5 sets of 2 beeps 5 blinks 5 blinks 5 blinks Paper feed current fault
(Possible paper jam or feed motor
failure)
3 sets of 2 beeps 3 blinks Off 3 blinks printhead over current (printhead
failure)
3 sets of 4 beeps Off 3 blinks Off Home switch failure
4 sets of 2 beeps 4 blinks 4 blinks Off printhead short (printhead failure)
12 sets of 12 beeps Off Off Off Operating System software failure
Printer Failure Indicators (continued)
Sets of Beeps Paper Out Head Jam Low Batt Meaning
Note: The most common errors are Paper Out, Low Battery,
and Head Jam. Status indicators on the front panel alert you to
these errors. For a description see “Understanding the Status
Indicators” on page 3