Canon imageRUNNER 7095 Service Manual page 448

Chapter 16
Code Description
*: model equipped with DADF-Q1 (outside Japan, iR7105/7095; inside Japan: iR7105/7095/7086).
**: model equipped with DADF-M1 (outside Japan: iR7086).
0000 The fan stop signal has been detected for 5 sec or more
after the pre-transfer charging
assembly fan has gone on.
E840 An HP detection error has occurred in relation to the fixing inlet sensor (fixing wrap jam
detection).
0000 The home position is not detected when he sensor is
moved up/down (i.e., the sensor
has not gone on).
0001 The home position is not detected when the sensor is
moved up/down (i.e., the sensor
has not gone off).
E850 There is a fault in the double-feeding detection unit.
0000 The double-feeding sensor (reception) fails to attain an
ultrasonic signal of a specific
level.
16-14
Remedial action
Disconnect and then connect J504 of the
DC controller PCB. Replace the pre-
transfer
charging assembly fan. Replace the DC
controller PCB.
Disconnect and then connect J508, J552,
and J553 of the DC controller PCB.
Disconnect
and then connect J4001 and J4002 of the
fixing inlet sensor ascent/descent motor
driver
PCB; as necessary, replace the fixing inlet
sensor ascent/descent motor. Replace the
fixing
inlet sensor ascent/descent motor driver
PCB.
Remove paper lint form the surface of the
double-feeding sensor (reception).
Remount the
double-feeding sensor (transmission,
reception). Disconnect and then connect
J509 and
J550 of the DC controller PCB. Replace
the double-feeding sensor (transmission,
reception).
Replace the double-feeding sensor PCB
(transmission, reception).