IBM 6500-V15 Maintenance Manual - Page 196

Power on the printer in download mode and load flash memory

Page 196 highlights

Symptom Randomly misplaced dots General Symptom List Table 5. General Symptom List Corrective Action 1. Power off and unplug the printer. Check and adjust the platen gap. 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 leads to the ground stud is tight. 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 on the printer. Run a print test. If the problem occurs, replace the hammer bank logic cable. 5. Check the shuttle for electrical shorts (page 252). 6. Plug in the printer and power it on. Run a print test. If the problem occurs, replace the flash memory with blank flash with boot code. Download the code (page 231). 7. Plug in the printer and power it on. Run a print test. If the problem occurs, replace the security key. 8. Plug in the printer and power it on. Run a print test. If the problem occurs, the controller board or microcode is suspect. Do the following: 9. Save the printer configuration values. (Refer to the User's Manual.) 10. Clear NVRAM (page 237). 11. Download and install the latest code from IBM First (page 231). 12. Power on the printer in download mode and load flash memory (page 238). a. If you encounter loading problems, go to the appropriate error code for resolution. b. If you encounter the failure or message that brought you to this procedure, replace the controller board (page 319). After replacing the controller board, DO NOT make the printer READY, but proceed immediately to the next step. 13. Download and install the latest code from IBM First (page 231). 14. Power on the printer in download mode and load flash memory (page 238). 15. If you encounter the failure after replacing the controller board, reinstall the original controller board and contact your DDS and Second Level Support. 16. Plug in the printer and power it on. Run a print test. If the symptom appears, do the power supply operational check (page 258). If the power supply fails the check, replace it. If it passes the check, go to the next step. 196

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General Symptom List
196
Randomly misplaced dots
1.
Power off and unplug the printer. Check and adjust the platen gap.
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 leads
to the ground stud is tight.
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 on the printer. Run a print
test. If the problem occurs, replace the hammer bank logic cable.
5.
Check the shuttle for electrical shorts (page 252).
6.
Plug in the printer and power it on. Run a print test. If the problem occurs, replace the flash memory
with blank flash with boot code. Download the code (page 231).
7.
Plug in the printer and power it on. Run a print test. If the problem occurs, replace the security key.
8.
Plug in the printer and power it on. Run a print test. If the problem occurs, the controller board or
microcode is suspect. Do the following:
9.
Save the printer configuration values. (Refer to the
User’s Manual
.)
10.
Clear NVRAM (page 237).
11.
Download and install the latest code from IBM First (page 231).
12.
Power on the printer in download mode and load flash memory (page 238).
a.
If you encounter loading problems, go to the appropriate error code for resolution.
b.
If you encounter the failure or message that brought you to this procedure, replace the controller
board (page 319). After replacing the controller board, DO NOT make the printer READY, but
proceed immediately to the next step.
13.
Download and install the latest code from IBM First (page 231).
14.
Power on the printer in download mode and load flash memory (page 238).
15.
If you encounter the failure after replacing the controller board, reinstall the original controller board
and contact your DDS and Second Level Support.
16.
Plug in the printer and power it on. Run a print test. If the symptom appears, do the power supply
operational check (page 258). If the power supply fails the check, replace it. If it passes the check,
go to the next step.
Table 5. General Symptom List
Symptom
Corrective Action