Electrical Component Defects
SM 6-26 D017/D018/D019/D020/D084/D085
Shift Sensor 903-1 STB
Open
SC770 is displayed.
Shorted
TD Sensor 327-1 BCU
Open
SC390 is displayed.
Shorted
Upper Relay Sensor 307-4 BCU
Open
The Paper Jam indicator will
light whenever a copy is
made.
Shorted
The Paper Jam indicator
lights even if there is no
paper.
An SC condition occurs only when a new PCU is being installed in the machine.
During copying, if the ID sensor fails, the image density will be changed.
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