Canon imageRUNNER ADVANCE C5500 Series, Service Manual, Page: 52 / 1331

Key No. Name Code Function/Specification
[6] Reader Controller PCB UN_BO1 Overall Reader control, digital image processing
[7] Original Size Sensor 1 PS_R1 Size detection in the vertical scanning direction (AB configuration)
[8] Original Size Sensor 2 PS_R2 Size detection in the vertical scanning direction (Inch configuration)
[9] Scanner Motor STM1 2-phase Pulse Motor: Pulse control
[10] Carriage Drive Belt - -
[11] Guide Shaft - -
Scanner Unit
This equipment uses a Scanner Unit that integrates an LED, mirror, lens, and Reading Sensor to perform original exposure and
reading.
Light emitted from the LED is reflected by the original and reaches the Reading Sensor through the Reflection Mirror and the
Lens Unit.
LED (light source)
Red (R) line
CCD
Lens
mirror
No.4
mirror
No.2
mirror No.3
mirror No.1
mirror
No.5
Lens
Green (G) line
Blue (B) line
Black & White (B/W) line
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.
2. Technology
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