Printronix p300 Maintenance Manual page 131

FROM SHEET 1
A
Check for dirt between
hammer and pole pin.
NO
Clean
?
YES
Replace hammer
driver PCBA per para
5–45.
Print out and check for
symptom.
Symptom
present
?
YES
Install original
hammer driver PCBA
per para 5–45.
B
GO TO SHEET 3
P300/P600 Troubleshooting
Clean per para 3–4.
Print out and check for
symptom.
Symptom
present
?
YES
NO
Return to
normal operation.
Figure 4–12. Missing Characters (2 of 4)
NO
Return to
Normal operation
4–25