ELECTRICAL COMPONENT DEFECTS
SM 4-7 B044/B045/B046
Trouble-
shooting
4.2 ELECTRICAL COMPONENT DEFECTS
4.2.1 SENSOR/SWITCH OPEN ERRORS
Sensor or Switch CN Symptom
Registration Sensor
FCU 27-2
"A" or "Y" paper jam reported.
Paper End Sensor FCU 29-2 Paper-end error when attempting to feed from
main tray. Fax key blinks red.
Bypass Paper End Sensor
(B044 and B046 only)
FCU 30-2 "Paper End" message when attempting to feed
from bypass tray. .
Exit Sensor FCU 28-2 "A" or "Y" paper jam reported.
Image Density (ID) Sensor FCU 32-1 Toner control process changes.
Toner Density (TD) Sensor
FCU 23-3
"Reset PCU Correctly" message appears, and
Caution indicator stays on.
Scanner HP Sensor
FCU 26-3
SC120 is displayed.
Platen Cover Sensor FCU 26-5
Delays start of polygon motor by a few
seconds. (Longer time for first copy.)
ADF Guide Open Sensor DF 105-5
"Close ADF" message appears, and Caution
indicator stays on.
ADF Original Set Sensor DF 105-7 Fails to detect originals at ADF.
ADF Registration Sensor DF 105 2 "P" paper jam reported.
Front/Right Door Switch FCU 14 "Close Front/Right Cover" message appears,
and the Caution indicator stays on.
4.3 BLOWN FUSE CONDITIONS
Rating
Fuse
120 V 220 – 240 V
At main switch ON
Power Supply Board
FU1 12 A/125 V 6.3 A/250 V No response.
F2 1 A/250 V 1 A/250 V
Anti-condensation heater (option) does not turn
on.
F3 4 A/250 V 2 A/250 V No response.
F201 5 A/250 V 5 A/250 V No response.
To Next Page
Loading...
