Specifications

Paper Lift Sensor
(S10)
OPEN
(CN125-2 stays HIGH)
User Code #5 is displayed.
SHORTED
(CN125-2 stays LOW)
The cassette bottom plate does not
rise to the paper feed position.
Component Condition Symptom
Image Density
(ID Sensor)
(S11)
OPEN
(CN110-3 stays HIGH)
The CPU detects an ID sensor
abnormal condition. The ADS or
Manual Image Density indicator
starts blinking.
SHORTED
(CN110-3 stays LOW)
Development Unit
Set Sensor
(S12)
OPEN
(CN123-2 stays HIGH)
The CPU fails to detect User Code
#3 even when the development unit
is not set.
SHORTED
(CN123-2 stays LOW)
User code #3 is displayed even when
the development unit is set.
1 December 1990
6-54