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GENERAL DESCRIPTION
2 - 4
2.4 Symbols and Functions of Various Components
1) Motors
2) Sensors and Switches
3) Solenoid
4) PC board
Symbol Name Function
M1 Original feed motor Drives the original feed roller, pickup roller and registration roller.
M2 Read motor Transports originals by driving the intermediate transport roller, front
read roller, rear read roller and exit roller.
Symbol Name Function
S1 Original tray sensor Detects the length of the original set on the original tray.
S2 Original tray width sensor Detects the width of the original set on the original tray.
S3 Original empty sensor Detects the original set on the original tray.
S4 Original registration sensor Detects transport of the original at the registration roller section.
S5 Read sensor Detects the leading edge of the original at the original scanning section.
S6 Original exit sensor Detects the exit (transit) of an original.
S7 Jam access cover sensor Detects opening/closing of the Jam access cover.
S8 ADF opening/closing sensor Detects opening/closing of the ADF.
SW Jam access cover opening/
closing switch
Switches between cutoff and supply state of the 24 V power by open-
ing/closing of the jam access cover.
Symbol Name Function
SOL Original pickup solenoid Drives up and down the original pickup roller.
Symbol Name Function
ADF ADF control PC board (ADF
board)
Controls the ADF.