Phaser 6128MFP Service Manual 2-49
Theory of Operation
Scanner Components
•ADF Open Sensor
The ADF Open Sensor detects whether or not the ADF is open and determines
the timing of document size detection.
• Carriage Motor
The Carriage Motor drives the Scanner Assembly.
• Scanner Home Position Sensor
The Scanner Home Position Sensor is a part of the rear section of the Scanner
Assembly frame that functions as an Actuator which shields the Scanner
Home Position Sensor, thus detecting the Registration position.
• Cold Cathode Fluorescent Lamp (Exposure Lamp)
The Cold Cathode Fluorescent Lamp exposes the document.
•Charged Coupled Device Board
The Charged Coupled Device (CCD) Board (Image Sensor) converts optical
images into electrical signals.
s6128-050
Scanner Assy
Scanner Home Position Sensor
Carriage Motor
Cold Cathode
Fluorescent Lamp
CCD PWBA
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