Lexmark X792 - Names and Functions of Components; Scanner Unit Assembly; Scanner Controller Card Assembly; Scanner Cooling Fan

Diagnostic aids 3-49
7562
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Names and functions of components
The sections below describe the functions of main components of the scanner.
Scanner unit assembly
Sensor (FB length APS 1), Sensor (FB length APS 2), Sensor (FB length APS 3)
The document length in the slow scanning direction is detected by a combination of the three reflector sensors.
Switch (ADF closed interlock)
A switch that detects whether the ADF is open and determines the timing of platen document size detection.
Scanner drive motor assembly
A stepping motor that drives the scanner CCD assembly.
Sensor (FB scanner HP)
A sensor that detects the HP position of the flatbed scanner CCD assembly.
Scanner exposure lamp
A Xenon lamp to which the document is exposed.
Scanner controller card assembly
A card that controls the scanner section.
Scanner cooling fan
A fan that prevents overheating of the scanner controller card assembly and exposure lamp.
Cooling fan
Interface card
CCD carriage
Motor
Paper length sensor
H.P. sensor