Basic Configuration; Functional Configuration; Basic Sequence - Canon imageRUNNER 2520 Series Service Manual

Basic Configuration

Functional Configuration

The machine may broadly be divided into the following functional system blocks; document
exposure system block, controller system block, laser exposure system block, image
formation system block, fixing system block and pickup/feed system block.
Controller system
Option
Main
board
controller
DC
controller
6
Flow of paper
Flow of signal
Laser beam
6-8
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Document exposure system
Reader relay PCB CIS Exposure lamp
Delivery
Fixing
system
Fixing
Laser exposure system
Transfer
Laser scanner unit
Image
formation
Pickup
system
Pickup/feed
Cassette 1
system
Cassette 2

Basic sequence

■
● Sequence at Power-On
•
Reader
Main power switch
Scanner motor
LED
CIS HP sensor
Duplexing
● Print sequence
feed
•
Reader (Book mode, 1 original)
Scanner motor
LED
CIS HP sensor
F-6-5 F-6-5
ON
SREADY STBY
Backwarding
Forwarding
Shading
Shading
position position
Black shading/White shading
Start key
ON
STBY SCFW SCRW
Backwarding Forwarding Backwarding
Light-ON
ON
Trailing edge
Shading Leading edge
of original
position of original
F-6-6 F-6-6
STBY
Forwarding
ON
Shading
position
F-6-7 F-6-7