User's Manual Part 3

Chapter 6 — Troubleshooting
6822 Series 80-Column Printer User’s Manual 111
Sample Second Page of the Self-Test
Page 2 of the self-test contains the print pattern used to diagnose printer
mechanical behavior. The pattern continuously prints the ASCII
characters between 33 and 126 decimal inclusive for the entire page, or
until you cancel the print by pressing a button on the printer. An example
of that rotating pattern is shown below.
!”#$%’()*+,–./
0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_’abcdefghijklmnopqrstuvwxyz{|}~!”#$%’
()*+,–./
0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_’abcdefghijklmnopqrstuvwxyz{|}~!”#$%’
()*+,–./
0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_’abcdefghijklmnopqrstuvwxyz{|}~!”#$%’
()*+,–./
0123456789:;<=>?@ABCDEFGHIJKL
Self-Test Failure
• For help, see “Miscellaneous Troubleshooting Tips” on page 111.
• Check the power source (internal battery, charge cable, or ac adaptor)
for a possible power failure.
Miscellaneous Troubleshooting Tips
The following table lists actual printing problems, possible causes, and
actions you should take to correct a problem.
Possible Printer Problems
Symptom Test or Cause Solution
Printer does not communicate
with the mobile computer.
Bluetooth unable to connect.
Incorrect protocol selection. Check lines 17 and 18 on the self-test
report for correct bit rate and protocol
selection. Change protocol settings
through configuration process.
Make sure you are in range
(10 cm to 10 m)
Make sure your device is
configured to be discoverable
and/or connectable. For help,
see “Bluetooth Configuration
Commands and
Specifications” on page 133.
Make sure the Bluetooth shutdown
timer has not expired
Double-spacing on
application reports but single-
spacing on
self-test.
Check line 16 on the self-test
report. CR+LF indicates an
incorrect configuration for
NPCP.
For help, see “Cleaning the Mask
Spring” on page 22.
Zero prints incorrectly (with
or without slash).
Check line 15 on the self–test
report for the Zero Font Style
setting.
If incorrect, adjust the zero print
option, see “Cleaning the Mask
Spring” on page 22