IBM Infoprint 6500-v05, Maintenance Manual

Page: 64 / 544

Chapter 1
Troubleshooting Display Messages
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057 CLOSE PLATEN (continued) 12. 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.
058 SHUTL JAM
SEE USERS MANUAL The shuttle is not moving or is
moving at the wrong speed. 1. Check the forms thickness lever: if it is set too tightly, it can slow
the shuttle enough to trigger the fault message. Set the forms
thickness lever to match the thickness of paper and provide
satisfactory print quality, but not too tightly.
2. Check and adjust the platen gap.
3. Inspect the ribbon mask for bends or deformation that may snag
and interfere with shuttle movement. Make sure the hammer bank
cover assembly is correctly installed on its mounting pegs.
4. Run a print test. If the message appears, power off the printer,
unplug the printer, and go to the next step.
5. Remove the shuttle cover. Remove the paper guide assembly or
the pedestal top cover. Inspect the shuttle mechanism for
obstructions. Check that all cables are attached at the shuttle and
the controller board. Make sure the MPU cable is not pinched.
(Refer to the Interconnection Diagrams on page 266.) Remove
obstructions and reseat all cables. Check the resistance of MPU
in P107. (Refer to the Main Wire Harness Test Tables on page
268.) Replace the MPU if it fails the test.
6. Plug in the printer and power it on. Run a shuttle test and observe
shuttle movement. If the shuttle oscillates too slowly, adjust the
gap between the MPU assembly and the flywheel to 0.010 ±
.001
inch (0.254 ± 0.025 mm). Torque the 7/16 inch MPU clamp screw
to 18 ± 1 inch-pounds (2.03 ± 0.11 N•m). If the shuttle does not
move go to Shuttle Short Tests (page 252) and follow the steps
exactly as listed.
7. Run a print test. If the message appears, replace the MPU
intermediate cable assembly.
Table 3. Message List
Operator Panel Message Explanation Corrective Action