Sony C9000 service manual Sensor, Paper related sensors

2.5Sensor

2.5.1Paper related sensors

Face-down paper eject sensor

		Paper eject roller
Face-down sensor		Stacker full sensor			Entrance belt sensor
Heat roller		C drum	M drum	Y drum	K drum
					MT feed roller
Paper eject sensor	Driving roller				Pinch roller 2

Backup roller Carrier belt

Driving roller

Belt cleaning blade Registration roller B

Pinch roller 1 Registration roller A

Duplex-in sensor

Duplex front sensor

Entrance MT sensor

1st feed roller

Entrance cassette sensor

Auxiliary roller

Duplex rear sensor

Duplex feed roller

Duplex roller

2nd feed roller

Carrier sensor

Sensor	Function	Sensor status
Entrance MT Sensor	Detects the beginning of incoming paper to determine the timing for	ON	: Paper exists.
Entrance Cassette sensor	switching from hopping to carriage.	OFF: Paper is empty.
Entrance Belt sensor	Detects the beginning of transferred paper and, based on the time taken	ON	: Paper exists.
	until the paper front edge reaches the sensor, determines the paper length.	OFF: Paper is empty.
Paper Eject sensor	Detects the beginning and end of paper to determine the paper ejection	ON	: Paper exists.
	timing.	OFF: Paper is empty.
Duplex-In sensor	Detects the beginning of paper which enters into the duplex unit to	ON	: Paper exists.
	determine the time taken until the reversed rollers turn in forward direction.	OFF: Paper is empty.
Duplex Rear sensor	Detects the beginning of paper after the turns in reverse direction, in the	ON	: Paper exists.
	duplex unit.	OFF: Paper is empty.
Duplex Front sensor	Detects the end of paper after the turns in reverse direction to determine	ON	: Paper exists.
	the paper ejection timing, in the duplex unit.	OFF: Paper is empty.
Stacker Full sensor	Detects the face-down stacker full of paper.	ON	: Stacker is full.
		OFF: Stacker is empty.
Face-Down Paper Eject	Detects paper carriage to the paper eject roller to determine the timing for	ON	: Stacker is full.
sensor	job offset operation.	OFF: Stacker is empty.
Face-Down Route sensor	Detects the face-down carrier route jammed with paper when it has a	ON	: Stacker is full.
	paper jam.	OFF: Stacker is empty.
Carrier sensor	Detects paper carriage from the option tray.	ON	: Stacker is full.
		OFF: Stacker is empty.

41388601TH Rev.2 30 /