User's Manual
Troubleshooting and Diagnostics
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Chapter
7
125
6820 Series 80-Column Printer User’s Manual
21 A2D History
22 Curr Low High Min Max Error Page Count
23 24v: 024.00 023.21 023.91 023.21 024.51 027.21 00401 00021
24 12v: 012.55 010.91 013.51 010.90 014.50 8.71 00401 00021
25 Temp: 023 -020 055 -021 060 000 00401 00021
26 Head Jam History
27 Total Head Jams: 00186
28 Home Command Direction Speed Step Temp Position Page
29 Print Left Const 010 -010 01440 12345
30 NPCP History
31 Disc Addr Parity IFTS Seq CRC Frame Bind IPLDU
32 12345 12345 12345 12345 12345 12345 12345 12345 12345
33 IRDA History
34 FramesOk BroadCasts CRC/TMO DISCARD
35 rx 1234567890 1234567890 0123456789 0000000000
36 tx 1234567890 1234567890 0123456789 0000000000
37 HEAD DOT PATTERN
38 Error Log
39 PE HJ 12Vu 12Vo 24Vu 24Vo Home Temp OverC HeadS Fault ADErr
EEErr
40 Dlink Llink
41 12345 12345 12345 12345 12345 12345 12345 12345 12345 12345 12345 12345
12345
42 12345 12345 12345 12345 12345 12345 12345 12345 12345 12345 12345 12345
12345
43 12345 12345 12345 12345 12345 12345 12345 12345 12345 12345
Second Page of Self-Test
Page 2 contains the print pattern used to diagnose printer mechanical be-
havior. 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[\]^_’abcdefghijklmn
opqrstuvwxyz{|}~!”#$%’()*+,–./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^
_’abcdefghijklmnopqrstuvwxyz{|}~!”#$%’()*+,–./0123456789:;<=>?@ABCDEFGHIJKLMN
OPQRSTUVWXYZ[\]^_’abcdefghijklmnopqrstuvwxyz{|}~!”#$%’()*+,–./0123456789:;<=>
?@ABCDEFGHIJKL
Self-Test Failure
If a partial report generates and a printer error occurs during printing,
refer to the table on the next page for troubleshooting help.
If the printer does not generate a report:
S There may be a printer failure, refer to the troubleshooting table on the
next page for possible solutions.
S There may be a power failure, check the power source (internal b attery,
charge cable, or ac adaptor).