User's Manual

Troubleshooting and Diagnostics
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Chapter
7
119
6820 Series 80-Column Printer User’s Manual
For a listing of run-time errors, refer to the following table.
Printer Failure Indicators
Sets of Beeps
PAPER
OUT
HEAD
JAM
LOW
BATT
Meaning
1 beep OFF OFF ON 12V u nder voltage fault (Low Battery)
1 set of 2 beeps OFF OFF 2blinks 12V over voltage fault (Input Voltage too high)
1 set of 3 beeps OFF OFF 3 blinks 24V under voltage fault (internal power su pply failure)
1 set of 4 beeps OFF OFF 4blinks 24V over voltage fault (internal power supply failure)
1 set of 13 beeps OFF OFF OFF Configuration error
2 sets of 2 beeps OFF 2blinks 2blinks Print head over temperature
2 sets of 3 beeps ON OFF OFF Paper Out
2 sets of 4 beeps OFF ON OFF Head Jam
2 sets of 5 beeps 5 blinks 5 blinks 5 blinks Paper feed current fault (Possible paper jam or feed motor failure)
3 sets of 2 beeps 3blinks OFF 3blinks Print head over current (Print head failure)
3 sets of 4 beeps OFF 3 blinks OFF Home switch failure
4 sets of 2 beeps 4blinks 4blinks OFF Print head short (Print head failure)
4 sets of 4 beeps Erratic Erratic Erratic Flash write error
12 sets of 12 beeps OFF OFF OFF Operating S ystem software failure
The most common errors consist of Paper Out, Low Battery, and Head
Jam. The other errors listed are of rare occurrences, but are provided for
good printer diagnostics in the event failures should occur.
Power-On Self -Test (POST)
When the printer is reset, it performs a POST to verify other reasons the
printer might be failing. Audible error codes, along with indicator light
status, are produced during POST if an error is encountered, as listed in
the POST Error Codes table.
A printer diagnostic cable, connected between the host computer and the
printer, is used during POST to: configure the printer, access printer diag-
nostics, update s oftware, and install new fonts.
To install the diagnostic cable: connect the phone plug into the phone jack
on the printer, then connect the 9-pin DSub plug into the host computer.
After installing the diagnostic cable, reset the printer to initiate POST.
POST Errors
POST errors only occur after a push button reset, or an initial application
of power to the printer. After the reset button is pressed, the LEDs (on the
printer control panel) indicate the progress of POST. The first LED to
light should be the power indicator (Green LED). A single beep should be
heard immediately after this LED lights up to indicate the printer is active.