Table of Contents
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Chapter 5 — Troubleshooting and Maintaining the 6820
Performing a Printer Self-Test
Running the Self-Test
Understanding the Self-Test Report
86
Nonvolatile Diagnostic Memory Update
The nonvolatile diagnostic memory is updated from the nonvolatile
diagnostic memory data shadowed in memory.
Initiating a Self-Test
•
While the printer is idle or in Suspend mode, press the Line Feed and
Set Page buttons simultaneously to start a self-test.
Terminating Self-Test
•
Press the Line Feed and Set Page buttons simultaneously to
manually terminate a self-test.
Perform a self-test to verify printer functions, and provide reporting of
printer diagnostics. The self-test performs a series of internal diagnostics
and prints the results. When the self-test begins, the beeper sounds for
half a second and all LEDs turn on for half a second.
A self-test is equivalent to a warm start. Both are performed when you
simultaneously press Form Feed and Set Page buttons on the control
panel for a few seconds. Release the buttons when the printer beeps and
all indicators are lit. If you press the buttons for too long, the self-test
will not happen and the printer will form-feed one page.
As the self-test progresses, the indicator lights change. Internal tests are
performed and a two page report is printed. The report provides helpful
information in diagnosing and troubleshooting printer problems.
The self-test report is divided into sections. Refer to
page 90
for a sample printout. All other values are informational only.
Remember that these values are cleared after the self-test.
• The printer model number is given on line 1 (first line). This
identifies the printer type used, in this case the 6820.
• The 8-digit serial number of the printer is listed on line 4 under the
"Serial#" heading on line 3. The serial number is also on the inside of
6820 Series 80-Column Printer User's Manual
page 89
and
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Table of Contents
Troubleshooting
