Printronix p300 Maintenance Manual page 142

Light and/or
smeared
characters
Print all Es, Hs, #s, or
ROW increment test.
Examine printout and
identify malfunctioning
hammer.
Check for dirt and debris,
expecially between
hammer and pole pin.
Is printer
clean
?
YES
Replace hammer
spring per para 5–25.
Print out and check
for symptom.
A
GO TO SHEET 2
Figure 4–16. Light and/or Smeared Characters (1 of 2)
4–36
NO
Clean printer per para
3–4.
Print out and check
for symptom.
Symptom
present
?
YES
NO
Return to
Normal operation
P300/P600 Troubleshooting