C. RDF/ADF Self Diagnosis
When the self diagnosis mechanism has detected an error, you can reset the copier
by turning off the power switch once.
You may continue to make copies even when the DF is out of order; lift the DF, and
place the original on the copyboard.
5-6
CHAPTER 5 SELF DIAGNOSIS
Code
Cause
•Communication (error; data,
with copier)
RDF
•Pick-up motor (fails to rotate)
•Pick-up roller sensor (faulty)
•Belt motor (fails to rotate)
•Belt motor clock sensor
(faulty)
RDF
•Feeding motor (fails to
rotate)
•Feeding motor clock sensor
(faulty)
ADF
•Delivery motor (fails to
rotate)
•Delivery motor clock sensor
(faulty)
•Original detection (faulty)
•Registration sensor (faulty)
•Original end sensor (faulty)
Timing
The communication with the copier has
been disrupted for 5 sec or more.
(Check are made at all times.)
•A flag is attached to the spindle of the
pick-up motor, and the rotation of the
pick-up motor is monitored in reference
to the flag blocking the pick-up roller
sensor.
Pick-up roller sensor does not turn
on/off twice or more within 1 sec.
The number of belt clock pulses within
200 msec is below a specific value.
The number of feeding motor clock
pulses within 200 msec is below a
specific value.
The number of delivery motor clock
pluses within 200 msec is below a
specific value.
The sensor output is 2.3 V or more in
the absence of paper.
E400
E401
E402
E403
E404
E411
Note: