Transfer Unit - Xerox Phaser 6180MFP Service Manual

Transfer Unit

Phaser 6180MFP Multifunction Printer Service Manual
The Transfer Unit consists of the Belt, ADC Sensor, ADC Solenoid, ADC Pad,
and ESA Roller.
Normal Position
Spring
ADC Solenoid
ADC Solenoid On
Position of ADC Sensor
Belt
The Belt feeds the paper toward the direction of the Fuser.
ADC (CTD) Sensor
The ADC Sensor detects the toner patches on the Belt and converts them
to voltage value. The voltage value is used to control the density of toner.
ADC Solenoid
To activate the ADC Pad, turn On the ADC Solenoid for a fixed time
before the ADC Sensor starts reading the toner patches. When turned
On, the ADC Solenoid activates the ADC Pad, which cleans
contamination on the ADC Sensor surface.
ESA Roller
The ESA Roller discharges a positive voltage to the paper. Toner transfer
efficiency is raised by applying a positive charge to the paper.
Position of ADC Sensor
(Window = Open)
Shutter
ADC Pad
ADC Pad
ADC Sensor
s6180mfp-054
Theory of Operation
2-33