Specifications

4–17Troubleshooting
Shuttle Jam
Instruction Indication Yes No
1. Check the forms thickness
lever: if it is set too tightly, it
can slow the shuttle enough
to trigger the fault message.
Forms thickness lever set
correctly.
Go to step 2. Set forms
thickness lever for
thicker paper. Go
to step 2.
2. Run a diagnostic self–test
(page 4–27) and check for
shuttle obstruction.
“Shuttle Jam” message. Go to step 3. Return printer to
normal operation.
3. Remove ribbon deck. Inspect
shuttle area and mechanism
for obstruction.
Shuttle movement blocked. Remove
obstruction. Go to
step 4.
Install ribbon
deck. Go to step
4.
4. Run a diagnostic self–test
(page 4–27).
Nothing obstructing shuttle, but
“Shuttle Jam” message
appears.
Go to step 5. Return printer to
normal operation.
5. Run shuttle/ribbon diagnostic
test and check MPU voltage.
MPU voltage is 2.5–6 VAC. Replace
mechanism driver
board. Go to step
6.
Replace the MPU.
Adjust the gap to
0.008 inches and
adjust the
phasing. Go to
step 6.
6. Run a diagnostic self–test
(page 4–27).
“Shuttle Jam” message. Replace hammer
bank.
Return printer to
normal operation.