Original Exposure/Feed System; Original Exposure System - Canon MF735C Series Service Manual

Original Exposure/Feed System

Original Exposure System

■ Functional Configuration
Description
The original on the Copyboard Glass is read by moving the Contact Image Sensor (CIS) by rotating the Reader Motor based on
the drive signal from the Main Controller PCB.
When using the ADF, the original is read by feeding it using the ADF, without moving the Contact Image Sensor.
Simultaneous duplex scanning models have 2 Contact Image Sensors, and the front and back sides of paper are scanned at the
same time with one feed of the paper.
* This model is not included in the lineup of some of the series. (Reference:
■ Specifications
Description
Item
Photo conductor
Reading resolution
Number of gradations
Magnification ratio
Reading Sensor
Original size detection
■ Major Components
Description
Symbol
M5
CIS
SR11
UN40
■ Dust Detection Control
Overview
Presence/absence of dust on the Stream Reading Glass is detected when an original is read. In accordance with the detection
result, the original reading position is changed or image correction is performed to prevent the dust from being printed on the
image.
LED
600 dpi x 600 dpi
256 gradations
25 % to 400 % (in 1% increment)
1 line
None
UN40
SR11
M5
Reader Motor
Contact Image Sensor
CIS HP Sensor
Connecting Relay PCB
"Product Lineup" on page
Specification/Function
CIS
Name
17
2. Technical Explanation (Device)
5)