Electrical Component Defects
M047 6-3 SM
Trouble-
shooting
Component CN Condition Symptom
Remaining paper
sensor 2
CN14-29
Open
The machine cannot determine the
paper near-end condition properly.
Shorted
Paper End CN14-23
Open
The Paper End indicator lights even if
paper is placed in the 1st paper tray.
Shorted
The Paper End indicator does not light
even if there is no paper in the 1st paper
tray.
Toner End CN14-33
High
Toner near-end (toner end) is not
detected.
Low The add toner message is displayed.
Fusing Pressure
Sensor
CN5-19
Open
Envelop mode is not selected even if the
pressure lever at the fusing unit is set to
the envelop mode.
Shorted
Envelop mode is always selected even if
the pressure lever at the fusing unit is
set to the other paper mode.
The CN numbers describe the connector number on the engine board.