IBM Infoprint 6500-v05 Maintenance Manual page 205

Symptom
Reverse paper feed: platen does not
open
Table 5. General Symptom List
1. Raise the forms thickness lever and check that the platen opens. If the platen opens with difficulty,
inspect for and remove jams or obstructions.
2. Check and adjust the platen open belt. Replace the belt if it is damaged.
3. Check and adjust the platen gap.
4. Power off and unplug the printer. Remove the paper guide assembly. Check that connector P106 is
not connected upside down.
5. Disconnect connector P106 from the controller board. Check the resistance of connector P106/
PLAT M. Replace the platen open motor if it fails the resistance test. (Refer to the Main Wire
Harness Test diagnostic in Chapter 2.)
6. Check the shuttle for electrical shorts (page 252).
7. Plug in the printer and power it on. Press FORM FEED and VIEW several times and check that
paper moves in both directions. If the platen does not open during paper reverse, the controller
board or microcode is suspect. Do the following:
8. Save the printer configuration values. (Refer to the User's Manual .)
9. Clear NVRAM (page 237).
10. Download and install the latest code from IBM First (page 231).
11. 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 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.
12. Download and install the latest code from IBM First (page 231). Power on the printer in download
mode and load flash memory (page 238).
13. If you encounter the failure after replacing the controller board, reinstall the original controller board
and contact your DDS and Second Level Support.
Corrective Action
General Symptom List
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