General Symptom List
103
Randomly misplaced dots 1. Power off the printer. Check the platen gap. Adjust the
platen gap if necessary.
2. Remove the paper guide assembly or pedestal top cover.
On the left rear wall of the card cage, make sure the nut
which secures the line filter ground line and the AC In
Power Supply cable lead to the ground stud is tight. (See
Figure 44, page 246.)
3. Disconnect the AC power cord and check the ground
leads for continuity. Replace the AC power cord if it fails
continuity test.
4. Make sure the printer is plugged in to a grounded power
outlet. Power up the printer. Run a print test. If the problem
occurs, replace the hammer bank logic cable.
5. Power up the printer. Run a print test. If the problem
occurs, replace the flash memory and DRAM. Download
the emulation software again.
6. Power up the printer. Run a print test. If the problem
occurs, replace the controller board.
7. Power up the printer. Run a print test. If the problem
occurs, replace the power supply board.
8. Power up the printer. Run a print test. If the problem
occurs, replace the shuttle frame assembly.
Table 3. General Symptom List
Symptom Solution
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