Instruction manual
42
Chapter 3 Troubleshooting Procedures
9. Inspect the tractors and tractor door springs for damage or excessive
wear.
If either tractor is worn or damaged, replace both tractor assemblies.
10. Check the condition and tension of the paper feed belt.
Adjust the paper feed belt. Replace the belt if it is damaged.
11. Check the platen gap.
Adjust the platen gap.
12. Clean the paper motion detector with a cotton swab and alcohol. At the
control panel, set the paper motion detector (PMD) fault setting to
DISABLE. Load paper. Run a print test and observe how the paper feeds.
If the message appears, replace the CMX controller board. Record
the message and return it with defective CMX board. If the message
does not appear, replace the paper detector switch assembly and set
the paper motion detector (PMD) to ENABLE.
33 PLATEN OPEN
TIMEOUT Message
1. In the CT emulation with a coax interface, the forms thickness lever has
been open for at least one minute. Load paper.
Close the forms thickness lever. Press CLEAR.
2. Run a print test. If a platen open or close platen message appears, power
off the printer. Remove the paper path or pedestal top cover. Disconnect
connector P107 from the CMX controller board. Check continuity of the
platen interlock switch cable from P107 to the switch.
Replace the platen interlock switch assembly if it fails continuity test.
3. Run a print test.
If a platen open or close platen message appears, replace the CMX
controller board. Record the message and return it with defective
CMX board.
34 RIBBON STALL
TIMEOUT Message
1. In the CT emulation with a coax interface, the ribbon has not moved for 10
minutes after CLEAR was pressed to clear the ribbon drive fault. Check
the forms thickness lever: if it is set too tightly it can inhibit ribbon
movement.
Set the forms thickness lever to match the thickness of the paper
being used, but not too tightly.
2. Inspect the ribbon guides for ink buildup, which can inhibit ribbon
movement.
Clean the printer.
3. Inspect the hammer bank cover/ribbon mask for bending or damage,
which can inhibit ribbon movement.