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M3500B/M5500B Service Manual
To check the printer:
1. Select Printer Test and press
return to the main Diagnostic Test menu.
2. Verify that the test patterns on the strip are as indicated in
Figure 2-4. Watch for white lines (printhead elements stuck off) or black
lines (printhead elements stuck on). Check area "A" for stray marks or
lines.
3. The area of Figure 2-4 labeled "C" contains printouts of all characters and
symbols. Verify that they are readable.
4. Measure between the long tick marks (B in Figure 2-4) to verify paper
speed. Distance should be 25mm + 5% (+1.25 mm).
5. Open the printer door and press the
series of 3 tones indicating a printer problem.
6. Take out the paper, close the door, and press the
should sound a series of 3 tones indicating a printer problem.
Figure 2-4 Printer Test Output
. Press
to end the test and
ENTER
CANCEL
Print
key. The unit should sound a
Strip
Print
key. The unit
Strip
Diagnostic Tests
2
2-21
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