Lexmark 5016-001 manual Symbol Name Function

5016-001

Symbol	Name	Function
S1	Power Switch	On/Off AC power switch - turns printer on/off.
S2	Interlock Switch	Shuts down the +24 V dc LVPS whenever
		the fuser, front or top covers open.
S3	5 V dc Interlock	Shuts down the +5 V dc LVPS supply to the
	Switch 1	printhead, whenever the fuser, front or top
		covers open.
S4	5 V dc Interlock	Shuts down the +5 V dc LVPS supply to the
	Switch 2	printhead, whenever the fuser, front or top
		covers open. (double interlock)
TS	Thermostat	The thermostat shuts down AC voltage to the
		fuser lamp should the fuser temperature
		become abnormally high.
OL1	New Oil Roller	Detects when a new oil roller is installed.
	Sensor
TH1	Thermistor	Detects and regulates the temperature of the
		hot roll in the fuser.
PHI1	Paper Exit Sensor	Detects when paper exits the fuser and is fed
		to the exit tray.
PHI2	Carriage Position	Detects when the carriage reaches home
	Sensor	position.
PHI3	Coupling On Sensor	Detects when the coupling is on.
PHI4	Coupling Off Sensor	Detects when the coupling is off.
PHI5	Bypass Paper	Detects when paper is fed from the bypass
	Detecting Sensor	multipurpose tray.
PHI6	Cam Sensor	Detects the cam position.
SW700	Paper Size detect	Detects paper size.
	switch
SW701	Paper Size Detect	Detects paper size.
	Switch
SW702	Tray Missing Detect	Detects when tray 1 is not installed.
	Switch
PQ250	OHP Detect Sensor	Detects when the OHP is fed to the
		registration roller.
PQ300	Toner Empty Sensor	Detects a near empty toner cartridge.

Connector Locations 5-11