Ricoh MP201SPF

Sensor	Connector	Message	Remarks
Registration Sensor	CN127	Paper jam	-
	SN
Paper End Sensor	CN129	Load paper	-
	SN
Bypass Paper End Sensor	CN130	(None)	The machine cannot detect paper on the bypass tray.
	SN
Paper Path Sensor	CN128	Paper jam	-
	SN
Exit Sensor	CN128	Paper jam	-
	SN
Image Density (ID) Sensor	CN132	(None)	Print quality may become worse.
	SN
Toner Density (TD) Sensor	CN123	SC901	The connector is shared with the mechanical total counter.
	PCU	Reset PCU correctly	-
Scanner HP Sensor	CN126	SC120	-
	SN	SC120	-
Platen Cover Sensor	CN126	SC120	-
	SN	(None)	The copier does not warm up when you open the platen cover.
DF Guide Open Sensor	DF CN103	Paper jam	-
	SN	(None)	-
DF Original Set Sensor	DF CN103	Paper jam	-
	Sensor	(None)	Originals are not detected.
DF Registration Sensor	DF CN103	Paper jam	-
	SN		Originals are correctly transported.
Inverter Sensor	DF CN103	Paper jam	-
	SN	(None)	-
Exit Sensor	DF CN103	Paper jam	-
	SN		-
Front Door Switch	CN114	Right door open	-
	SW	Front/Right door open	The message depends on which circuit is open (white ^ front; blue ^ right).
Right Door Switch	CN114	Right door open	-
	SW	Right door open	-

CNxxx: The connector on the BICU board.
DF CNxxx: The connector on the DF connection board.
SN: The connector on the sensor.
SW: The connector on the switch.