Canon ImageRUNNER 1022iF, Service Manual, Page: 153 / 270

Chapter 10
10-1
10.1 Basic Construcion
10.1.1 Outline
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/ / / / iR1018 / iR1018J / / iR1022A / iR1022F / iR1022i / iR1022iF /
The ADF is a feeding device used exclusively for stream reading, and its series of operations (original pickup, feeding, delivery) is performed using the drive of
the ADF motor (M2001).
An original picked from the original placement assembly is controlled so that its movement 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 analog image data), and sent to the delivery assembly.
The ADF has 4 sensors to monitor the state of the original. The names and the functions of the sensors are as follows:
T-10-1
F-10-1
10.1.2 Drive Mechanism
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/ / / / iR1018 / iR1018J / / iR1022A / iR1022F / iR1022i / iR1022iF /
F-10-2
Symbol Sensor Function
SR2001 Document set sensor Detects the presence/absence of an original in the document set
assembly.
SR2002 Document edge sensor Detects the paper feed status and triggers scanning.
SR2003 Registration sensor Detects the timing at which the leading edge of an original is made to
arch at the ADF registration roller.
SR2004 Separation rear sensor Detects the paper feed status and triggers pickup of the next original.
Symbol Name
SL2001 Pickup solenoid
SL2002 Registration solenoid
SL2003 Roller release solenoid
M2001 ADF motor
SR2003
SR2002
SR2004
SR2001
SL2001
SL2003
M2001
SL2002