Instruction manual

3–10 Troubleshooting
CLEAR PAPER JAM
Instruction Indication Yes No
1. a) Load paper.
b) Press the FF key several
times.
Forms feed without erratic
motion, noise, or pin–hole
damage.
Go to step 2. If pin holes are
damaged, go to
step 4. For erratic
motion or noise,
go to step 6.
2. Press the VIEW key twice.
Forms move correctly in both
directions, without jamming,
tearing, or folding.
Suspect a false
indication. Go to
step 9.
Go to step 3.
3. Check the platen open belt.
Platen open belt OK. Replace one at a
time until
message goes
away:
a) platen motor
b) controller board
Replace platen
open belt.
4. Check that the ribbon mask
has not been deformed in
such a way as to block the
paper path.
Ribbon mask damaged or bent. Replace the
hammer bank
cover assembly.
Go to step 5.
5. Check platen gap.
Platen gap incorrect. Adjust platen gap.
Go to step 6.
Go to step 6.
6. Check for damage to the
paper feed belt.
Paper feed or belt damaged. Replace the paper
feed belt. Go to
step 7.
Go to step 7.
7. Check the tractors and
tractor door springs for
damage or excessive wear.
Tractors are OK. Replace CMX
controller board.
Go to step 8.
Replace tractors.
8. Run a print test.
“CLEAR PAPER JAM”
message.
Replace paper
feed motor. Go to
step 9.
Return printer to
normal operation.
9. a) Load paper.
b) Do some line feeds and
run a print test.
“CLEAR PAPER JAM”
message.
Clean the paper
motion detector
with cotton swab
and alcohol. Go to
step 10.
Return printer to
normal operation.
10. a) Set the paper motion
detector fault setting to
DISABLE (Ref:
Setup Guide ).
b) Run a print test and check
paper feeding as the printer
prints.
“CLEAR PAPER JAM”
message.
Replace the CMX
controller board.
Go to step 11.
Return printer to
normal operation.
11. Run a print test.
“CLEAR PAPER JAM”
message.
Replace paper
detector switch
assembly.
Return printer to
normal operation.