COPYRIGHT © 2002 CANON INC.
2000 2000 2000 2000
CANON SmartBase PC1210D/1230D/1270D REV. 1 MAR. 2002
4-41
CHAPTER 4 OPERATION
9 ADF (if equipped with ADF functions)
9.1 Outline
The ADF is a feeding device used exclusively for stream reading, and its series of opera-
tions (original pickup, feeding, delivery) is performed using the drive of the ADF motor
(M3).
An original picked from the original placement assembly is controlled so that its move-
ment will match the read start timing of the host machine’s contact sensor. Then, the original
is moved as far as stream reading position, read by the contact sensor (for collection of ana-
log image data), and sent to the delivery assembly.
The ADF has 3 sensors to monitor the state of the original. The names and the functions
of the sensors are as follows:
T04-901-01
PS7
PS6
PS8
F04-901-01
Symbol
PS6
PS7
PS8
Sensor
Original sensor
Registration sensor
Original delivery sensor
Function
Detects the presence/absence of an original in the
original placement assembly.
Detects the timing at which the leading edge of an
original is made to arch at the ADF registration
roller.
Monitors the movement of the original in the origi-
nal delivery assembly.
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