Toshiba MR-3018 service manual Symbols and Functions of Various Components, Motors

2.4Symbols and Functions of Various Components

1) Motors

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, platen roller, rear read roller and reverse registration roller.
M3	Original exit/reverse motor	Drives the original exit/reverse roller.
M4	Fan motor	Cools off the ADF drive section and ADF board.

2) Sensors and Switches

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 length detection	Detects the length of the original.
	sensor
S5	Original registration sensor	Detects transport of the original at the registration roller section.
S6	Original width detection sen-	Detects the width of the original.
	sor-1
S7	Original width detection sen-	Detects the width of the original.
	sor-2
S8	Original intermediate trans-	Detects the original transported to the Pre-scanning section.
	port sensor
S9	Read sensor	Detects the leading edge of the original at the original scanning section.
S10	Original exit/reverse sensor	Detects the exit (transit) of an original. Also detects the stop reference
		position for an original when in reverse.
S11	Jam access cover sensor	Detects opening/closing of the Jam access cover.
S12	RADF opening/closing sen-	Detects opening/closing of the RADF.
	sor
SW1	Jam access cover opening/	Switches between cutoff and supply state of the 24 V power by open-
	closing switch	ing/closing of the jam access cover.

3) Solenoid

Symbol	Name	Function
SOL1	Original pickup solenoid	Drives up and down the original pickup roller.
SOL2	Gate solenoid	Drives the reverse flapper. (Switches the flapper to the reverse side
		when turned to ON.)

4) PC board

Symbol	Name	Function
ADF	RADF control PC board	Controls the RADF.
	(ADF board)

MR-3018 GENERAL DESCRIPTION June 2005 © TOSHIBA TEC

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