(3) Fusing malfunction
Does the Heater Lamp
turn ON when the
power is ON?
Is H1 conductive?
Is the Thermistor (TH1)
surface dirty?
Replace
H1.
Replace TH1.
Replace the
Thermistat (S3)
or the Fusing Unit.
YES
YES
YES
YES
H1 check
TH1 check
S3 check
YES
NO
NO
NO
NO
NO
Is there electrical con-
ductin between
CN2-1 and CN2-3?
Is there electrical con-
ductin between
CN2 of TH1?
Replace the Power
Unit (PWB-E) or
PWB-A.
Replace PWB-E
or PWB-A.
Clean TH1
(4) Exit fan malfunction
Does the Exit Fan Motor
(M3) rotate when the
power is ON?
Replace PWB-A.
Replace M3.
YES
NO
NO
3. OTHER TROUBLE SHOOTING
(1) No Power
Has the Power ON/OFF
Swicth been turned ON?
Has the Power Cord been securely
connected to the printer?
Has the Power Cord been securely
connected to the outlet?
Has the fuse in the Power Unit
(PWB-E) blown?
Replace the fuse.
Replace PWB-E or PWB-A.
YES
YES
YES
YES
NO
FO-4500H
2 – 40
Содержание FO-4500
Страница 16: ...M E M O FO 4500H 1 14 ...
Страница 129: ...Control PWB parts layout Top side 6 11 FO 4500H ...
Страница 130: ...Control PWB parts layout Bottom side 6 12 FO 4500H ...
Страница 133: ...TEL LIU PWB parts layout 6 15 FO 4500H ...
Страница 134: ...6 16 FO 4500H ...
Страница 136: ...Power supply PWB parts layout 6 18 FO 4500H ...
Страница 141: ...M E M O 6 23 FO 4500H ...
Страница 149: ...Scanner unit Fig 6 Optical adjustment tool Fig 7 Fig 8 FO 4500H 8 6 ...