Major Components

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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