Sharp FACSIMILE FO-4500 Service Manual page 55

(3) Paper jam occurred at the paper transport section
Has the paper leading
edge alredy reached
the Fusing Roller?
NO
Clean the Pre-Image
Transfer Roller.
2. UNIT ERROR
(1) Laser malfunction
(2) Polygon motor malfunction
Has the paper
YES
been separated
from the Fusing
Roller?
NO
Check the Fusing
Roller and the Paper
Separator.
Replace PWB-A.
Replace PWB-A.
Does the Paper Exit
YES
Sensor (PC3) lever
move correctly?
Correct the Sensor lever.
NG
Replace the Print Head Unit.
NG
Replace the Print Head Unit.
2 – 39
YES
Replace PC3 or
PWB-A.
NO
FO-4500H