Rdf/Adf Self Diagnosis - Canon NP6330 Service Manual

CHAPTER 11 TROUBLESHOOTING
C. RDF/ADF Self Diagnosis
Code
•Communication (error; data,
E400
RDF
•Pick-up motor (fails to rotate)
•Pick-up roller sensor (faulty)
E401
•Belt motor (fails to rotate)
E402
•Belt motor clock sensor
RDF
•Feeding motor (fails to
E403
•Feeding motor clock sensor
ADF
•Delivery motor (fails to
E404
•Delivery motor clock sensor
•Original detection (faulty)
E411
•Registration sensor (faulty)
•Original end sensor (faulty)
Note:
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.
11-184
Cause
with copier)
(faulty)
rotate)
(faulty)
rotate)
(faulty)
COPYRIGHT © 1997 CANON INC.
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.
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Timing