Document Scanning At Platen (Iit) - Dell 3115cn Service Manual

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Chapter 6 Principle of Operation (Scanner)

9.1 Document Scanning at Platen (IIT)

Shown below is an operational overview of document scanning at the platen.

Carriage Motor

Scanner Assy

Scanner Home Position Sensor

The Scanner ASSY travels to read the document.

The following are installed on the Scanner ASSY: Exposure Lamp that illuminates light onto the

document, CCD image sensor that reads light reflected from the document, and the lenses and mirrors

comprising the light path for the optical image.

Version 1 2006.11.21

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