Controls (Adf); Electric Circuit Diagram; Outline Of Operation Modes - Canon Color Image Reader-F1 Service Manual

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Technology > Controls (ADF) > Outline of Operation Modes > Forward Pickup/Delivery Operation

Controls (ADF)

Electric Circuit Diagram

The control of this equipment is performed on the reader controller PCB.
Following shows the relation of each electrical parts.
DADF driver
PCB
Reader controller PCB

Outline of Operation Modes

■ Outline
The ADF has two operation modes.
Operation mode name Outline of operation
Forward pickup/delivery Picks up, reads, and then delivers
a document.
Forward feed/reverse delivery Picks up, reads, reverses, and
delivers a document.
The document flows as shown below.
2 Technology > Controls (ADF) > Outline of Operation Modes > Forward Pickup/Delivery Operation
■ Forward Pickup/Delivery Operation
Sensor
Motor
Clutch
Solenoid
Fan
F-2-11
Associated print mode
Single-sided document ->
Simplex printing
Single-sided document ->
Duplex printing
Double-sided document ->
Duplex printing
Double-sided document ->
Simplex printing
T-2-5
• Simplex read operation (when two document sheets are placed)
Document
Pickup of first document sheet/
Formation of loop
Waiting for reading of the
first document sheet
2-9
Reading of first document
sheet
Pickup of second document
sheet
Formation of second document
To next
F-2-12
2-9