Specifications

COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-J1 REV.0 MAR.2001
CHAPTER 5 TROUBLESHOOTING
5-39
1.3.4 Checking the Sensor Output
The DADF uses a 7-segment LED (LED2) on its ADF controller PCB to allow a check on
the presence/absence of paper or the state (open/closed) of the upper cover of the following
sensors:
LED2
(1)
(2)
(3)
(4)
(5)
(6)
Sensor in question
(notation)
Original sensor (S6)
Original trailing edge sensor
(S7)
Separation sensor (S4)
Skew sensor (S5)
Pre-registration roller paper
sensor(S2)
Post-registration roller paper
sensor (S3)
LED2
(7)
(8)
(9)
(a)
(b)
(c)
(d)
(e)
(f)
Sensor in question
(notation)
Reversal sensor (S1)
Manual feed registration roller
paper sensor (S9)
Pre-last original paper sensor
(S8)
Pre-reversal sensor (PI4)
Original paper sensor (PI13)
Manual feed set sensor (PI12)
ADF closed/open sensor
(PI10)
Upper cover sensor
(front; PI6)
Upper cover sensor
(rear; PI3)
T05-103-09
1) Remove the ADF controller cover, and
set the DIP switch (SW1) on the ADF
controller PCB as indicated (normal op-
eration mode).
F05-103-13
F05-103-14
ADF controller cover
Screw