Xerox Phaser 7100 Service Manual

General and Operation Overview
Xerox Internal Use Only Phaser 7100 Service Manual 1-61
• Sub Heater Lamp - A heating-coil-enclosed Lamp located inside the Heat Roller that heats the
center of the Heat Roller.
• Center Temperature Sensor (non-contact type) - A Thermistor that is placed close to, but not in
contact with the Heat Roller to detect the surface temperature of the Heat Roller and to control
the On (conducting: light On)/ Off (light Off) status of the Heater Lamp based on the detected
temperature.
• Rear Temperature Sensor (contact type) - A Thermistor that is placed in contact with the Heat
Roller to detect the surface temperature of the Heat Roller and to prevent the Heat Roller from
overheating.
• Thermostat - These are positioned in series with the Heater Lamp power supply. If the
Temperature Sensors (Thermistors) have failed to prevent overheating (primary), and the contact
point has reached the specified temperature, the contact will open to prevent secondary
overheating.
• Fuser PWB - Detects whether the Fuser had ever been installed before when the Fuser Assembly is
used for the first time.
• Fuser Exit Sensor - Detects that paper has passed through the Fuser Assembly section.
(No paper: Sensor blocked)

Xerox Phaser 7100 Specifications

General

Brand	Xerox
Model	Phaser 7100
Category	Printer
Language	English