Lexmark Optra C710 Service Manual - Page 261

5016-001 Symbol Name Function S1 S2 S3 S4 TS OL1 TH1 PHI1 PHI2 PHI3 PHI4 PHI5 PHI6 SW700 SW701 SW702 PQ250 PQ300 Power Switch On/Off AC power switch - turns printer on/off. Interlock Switch Shuts down the +24 V dc LVPS whenever the fuser, front or top covers open. 5 V dc Interlock Switch 1 Shuts down the +5 V dc LVPS supply to the printhead, whenever the fuser, front or top covers open. 5 V dc Interlock Switch 2 Shuts down the +5 V dc LVPS supply to the printhead, whenever the fuser, front or top covers open. (double interlock) Thermostat The thermostat shuts down AC voltage to the fuser lamp should the fuser temperature become abnormally high. New Oil Roller Sensor Detects when a new oil roller is installed. Thermistor Detects and regulates the temperature of the hot roll in the fuser. Paper Exit Sensor Detects when paper exits the fuser and is fed to the exit tray. Carriage Position Sensor Detects when the carriage reaches home position. Coupling On Sensor Detects when the coupling is on. Coupling Off Sensor Detects when the coupling is off. Bypass Paper Detecting Sensor Detects when paper is fed from the bypass multipurpose tray. Cam Sensor Detects the cam position. Paper Size detect switch Detects paper size. Paper Size Detect Switch Detects paper size. Tray Missing Detect Detects when tray 1 is not installed. Switch OHP Detect Sensor Detects when the OHP is fed to the registration roller. Toner Empty Sensor Detects a near empty toner cartridge. Connector Locations 5-11