Printronix p300 Maintenance Manual page 154

Vertical
misalignment
Print all Hs, or
underlines.
Check for misaligned
character positions
(see Fig. 4–24).
Character
position ok
?
YES
Check for vertically
deformed characters
(see Fig. 4–25).
Characters
ok
?
YES
A
GO TO SHEET 2
4–48
NO
Align hammer tips per
para 5–8.
Print out and
check for
symptom.
Symptom
present.
?
YES
Set MPU gap per
para 5–11 and
NO
phasing per para
5–12.
Print out and check
for symptoms.
B
Figure 4–23. Vertical Misalignment (1 of 4)
NO
Return to
Normal operation
GO TO SHEET 2
P300/P600 Troubleshooting