User's Manual Part 3

Chapter 6 — Troubleshooting
112 6822 Series 80-Column Printer User’s Manual
Does not print extended
character set — missing font.
Check line 11 or 12 on the
self–test report to see if the
NFT0000.MOD file is listed
after Font Module.
Use the 6820 Printer Tool Kit to reload
the font file or send the printer in for
hardware repair.
Printer emits 1 or 2 beeps or
blinking green light is the
only indicator.
Printer mechanism does not
have adequate power for
printing. The 12 V may be
under or over voltage fault.
(Note: Error lights do not
flash if voltage is too high)
Check battery or power supply.
If battery, recharge or replace
(see “Installing the Internal
Battery” on page 10
If power supply, adjust supply
voltage to 7.5 to 15 V.
Check the printer’s internal battery, if
installed. Check the vehicle charge
cable (see 6822 Printer Installation
Instructions P/N 931-052-001).
Printer emits 2 sets of 3 beeps Printer out of paper Reload paper into printer mechanism.
For help, see “Loading the Paper Tray”
on page 13.
Printer works but some or all
LEDs do not work.
Gray ribbon cable connecting
control panel board to pivot
frame assembly is loose.
Call Customer Support
(800-755-5505) or send printer for
hardware repair.
Printer does not print No voltage Voltage too high or low. Check line 13
on the self–test report, under the
Battery Voltage heading
No data input Adjust supply voltage to
7.5-15 V
Tighten computer
connections.
No paper feed (paper jam or head jam)
Te s t: Pull paper toward roller.
Cause: If paper is resistant:
Paper tray too full Torn paper perforation
Paper wrinkled, creased,
moist, or perforations missing
White ribbon cables
obstructing paper
Head Jams due to carriage alignment.
Check line 29 on self-test report, under
Position heading, for value.
Ensure fewer than 200 3-ply
sheets in the deep paper tray
and fewer than 50 3-ply
sheets in the shallow paper
tray.
Remove torn paper, load and center
new paper, readjust pinfeed holders.
Possible Printer Problems (continued)
Symptom Test or Cause Solution