Canon iR1600 Series Service Manual page 558

CHAPTER 13 TROUBLESHOOTING
E716
The communication between the cassette unit and the DC controller PCB
is disrupted.
Possible cause The wiring is faulty (short circuit, open circuit). The cassette unit control-
ler PCB is faulty.
The DC controller PCB is faulty.
Remedy
1) Connector
NO : Correct the connection.
2) Cassette unit controller PCB
YES : End.
NO : Replace the DC controller PCB.
E717
The communication between the RDD (Remote diagnostic device) and
the image processor PCB is disrupted.
Possible cause The wiring is faulty (short circuit, open circuit). The RDD is faulty.
The image processor PCB is faulty.
Note Be sure to clear the error in service mode : #12 CLEAR>ERR>E717-CL.
Remedy
1) Connector
NO : Correct the connection.
2) Image processor PCB
YES : End.
NO : Replace the RDD.
If E717 is indicated, the fault in communication is retained by the RAM
on the image processor even when the power switch has been turned off
and then on; be sure to execute #12 CLEAR>ERR>E717-CLR in service
mode before making corrections.
13-180
COPYRIGHT© 2002 CANON INC.
Is the connection and the wiring for the connector on the cassette
unit controller PCB and the connector on the DC controller PCB
normal?
Try replacing the cassette unit controller PCB. Is the fault cor-
rected?
Is the connection and the wiring for the RDD's connector and the
connector (J208) on the image processor PCB normal?
Try replacing the image processor PCB. Is the fault corrected?
2000 CANON iR1600/iR2000/iR1610/iR2010 SERIES REV.0 MAR. 2002