COPYRIGHT © 2002 CANON INC.
2000 2000 2000 2000
CANON SmartBase PC1210D/1230D/1270D REV. 1 MAR. 2002
4-13
CHAPTER 4 OPERATION
2 Image Reading/Processing System
2.1 Outline
The image reading/processing system consists of the following major components:
• contact sensor used to read originals
• reader motor, drive pulley, drive belt, carriage, and carriage rail used to move the con-
tact sensor
• The analog processor PCB is used to convert the analog image data colleted by the
contact sensor into digital image data.
The image reading mechanism is controlled based on the drive signals from the image
processor PCB, thereby moving the contact sensor to read the original placed on the
copyboard glass. (F04-201-01)
When the ADF is used, the contact sensor is moved to stream reading position, and the
originals are read when they are moved by the ADF.
Analog processor PCB
Contact sensor
Drive belt
Drive pulleys
Drive pulley
Carriage rail
Reader motor
Contact sensor
home position sensor
(forward)
(reverse)
Stream reading position
with ADF in use
Carriage
Drive belt
F04-201-01
Содержание SmartBase 1270D
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