Instruction manual

46
Chapter 3 Troubleshooting Procedures
frame assembly for broken hammer springs, hammer tips, or
contaminations.
Replace any damaged hammer spring assemblies. Replace the
hammer bank cover assembly if it is deformed or damaged.
6. Check the platen gap.
Adjust the platen gap.
7. Remove the paper guide assembly or pedestal top cover. Make sure
Connectors P105 and P108 have good connections on the CMX
controller board. Make sure connectors P04 and P05 have good
connections at the shuttle frame assembly.
Reseat connectors P04, P05, P105, and P108.
8. Power on the printer.
If the problem still occurs, replace the shuttle frame assembly.
9. Power on the printer.
If the problem still occurs, replace the power supply board.
10. Power on the printer.
If the problem still occurs, replace the CMX controller board.
CLEAR PAPER JAM Message
1. Inspect the paper path for jams.
Clear jams. Load paper.
2. Press PAPER ADVANCE several times and check that forms feed
without erratic motion, noise, or pin-hole damage.
If forms do not feed, go to Paper feeds poorly, page 68.
If forms feed, go to step 3.
3. Press VIEW once and check that forms move up.
Make sure the forms thickness lever is not set too tightly.
4. Press VIEW again and check that the forms thickness lever rotates and
the paper moves down.
If the forms thickness lever does not rotate and/or the paper does not
move down, refer to Reverse paper feed: platen does not open,
page 73.
5. Check the paper tension between the tractors.
Adjust the right tractor so that it does not pull paper too tightly or
leave it too loose. The right tractor should hold the paper under
“slight” tension.
6. Inspect the ribbon mask for bends or deformation that block the paper
path or prevent paper from exiting the pedestal top cover.
Replace a damaged hammer bank cover assembly.
7. Check the condition and tension of the platen open belt.
Adjust the platen open belt. Replace the belt if it is damaged.