Names And Functions Of Components; Iit - Dell 3115cn Service Manual

12. Names and Functions of Components

The sections below describe the functions of main components of the scanner.

4.1 IIT

4.2 ADF
12.1 IIT
ADF Open Sensor
A switch that detects whether or not the ADF is open and determines the timing of platen document
size detection.
Carriage Motor
A stepping motor that drives the Scanner ASSY.
Scanner Home Position Sensor
A part of the rear section of the Scanner ASSY frame functions as an actuator that shields the
Scanner Home Position Sensor, thus detecting the Regi position.
Cold cathode fluorescent lamp (Exposure Lamp)
The lamp that exposes the document.
CCD PWBA
A CCD image sensor that converts optical images into electrical signals.
Version 1 2006.11.21
Chapter 6 Principle of Operation (Scanner)
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