Scanner Unit - Canon imageRUNNER ADVANCE C3500 III Series Service Manual

Key No. Name
[5] Sensor Lightproof Sheet
[6] Original Size Sensor (AB)
[7] Original Size Sensor (Inch)
[8] Scanner Motor
[9] Carriage Drive Belt
[10] Guide Shaft
● Scanner Unit
The Scanner Unit consisting of an LED, mirror, lens, and Reading Sensor is used to perform original exposure and reading.
Light emitted from LED is reflected by the original and reaches the Reading Sensor through the Reflection Mirror and the Lens
Unit.
LED Lamp Unit
The LED Lamp Unit emits light from the 2 LED Lamp PCBs (with 36 LED chips for each PCB).
The emitted light exposes the original via the Reflection Plate.
Newly Developed Lens Unit
By using the Lens Unit with 4 lenses combined, downsizing of the Scanner Unit has been achieved.
Reading Sensor
The Reading Sensor reads the image for1 image line.
Symbol
-
UN_BO1
PS_R1
PS_R2
STM1
-
Lens
mirror
No.4
mirror
No.2
mirror
No.5
Lens
Function/Specification
-
Overall reader control, digital image processing
Size detection in the vertical scanning direction (AB configuration)
Size detection in the vertical scanning direction (Inch configuration)
2-phase Pulse Motor: Pulse control
-
LED (light source)
CCD
Red (R) line
Green (G) line
Blue (B) line
Black & White (B/W) line
39
2. Technology
mirror No.3
mirror No.1