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Major Components
Following shows major components of document exposure system.
Item
Notation
Specification/function
Scanner motor
M14
Pulse motor: controls the carriage drive
CCD HP sensor
S11
Detects CCD home position
Copyboard Cover Open/Closed Sensor (front)
S12
Ends original size identification with the copy board cover at 5 deg
Copyboard Cover Open/Closed Sensor (rear)
S13
Detects the copyboard cover open/close. Starts original size identification with the copy board cover at 30 deg.
Original Size Sensor 1
S15
Helps identify original size(AB, INCH/AB/K, A)
Original Size Sensor 2
S14
Helps identify original size(INCH/AB/K, INCH/A)
CCD unit
-
Indirect exposure by LED (LED & photoconductive body)
Reader Heater (Option)
H6
Prevents condensation on the copyboard glass
Reader controller PCB
UN4
Controls the reader unit drive and image process