Canon imageRUNNER ADVANCE 525 I, Service Manual

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● 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 LED is reflected by the original and reaches the Reading Sensor through the Lens Unit.
Scanner Unit
(ADF)
Scanner Unit
(Reader)
The Reading Sensor consists of 3 lines (R, G, and B) and all lines are used at B&W and color reading.
Related error code
E280- 000x: Scanner Unit communication error
• E280- 0001: Scanner Unit communication error
• E280- 0002: Scanner Unit communication error
E280- 010x: Scanner Unit communication error
• E280- 0101: Scanner Unit communication error
• E280- 0102: Scanner Unit communication error
E302- 000x: Error in paper front shading
• E302 - 0001: Error in paper front white shading
• E302 - 0002: Error in paper front black shading
• E302 - 0003: Error in paper front shading
E302 - 010x: Error in paper back shading
• E302 - 0101: Error in paper back white shading
• E302 - 0102: Error in paper back black shading
• E302 - 0103: Error in paper back shading
■ Duplex Reading Control
2-sided originals are read using simultaneous duplex reading.
With one feed, the Scanner Unit of the Reader Unit reads the front side and the Scanner Unit of the ADF reads the back side so
that both sides can be read without reversing the paper.
Scanner Unit
(ADF)
Scanner Unit
(Reader)
Scanning position
for the front side
Scanning position
for the rear side
2. Technology
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