Power-On Self-Test (Post); Post Errors - Intermec 6820 Series User Manual

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Chapter 7 Troubleshooting and Diagnostics
Printer Failure Indicators
PAPER
Sets of Beeps OUT
1 beep OFF
1 set of 2 beeps OFF
1 set of 3 beeps OFF
1 set of 4 beeps OFF
1 set of 13 beeps OFF
2 sets of 2 beeps OFF
2 sets of 3 beeps ON
2 sets of 4 beeps OFF
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 3 blinks OFF
3 sets of 4 beeps OFF
4 sets of 2 beeps 4 blinks 4 blinks OFF
4 sets of 4 beeps Erratic
12 sets of 12 beeps OFF
116
For a listing of run-time errors, refer to the following table.
HEAD LOW
JAM BATT Meaning
OFF ON 12V under voltage fault (Low Battery)
OFF 2 blinks 12V over voltage fault (Input Voltage too high)
OFF 3 blinks 24V under voltage fault (internal power supply failure)
OFF 4 blinks 24V over voltage fault (internal power supply failure)
OFF OFF Configuration error
2 blinks 2 blinks Print head over temperature
OFF OFF Paper Out
ON OFF Head Jam
3 blinks Print head over current (Print head failure)
3 blinks OFF Home switch failure
Print head short (Print head failure)
Erratic Erratic Flash write error
OFF OFF Operating System 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 software, 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.
6820 Series 80-Column Printer User's Manual