EPSON AcuLaser C9200N
Revision D
OPERATING PRINCIPLES
Operating Principle of Main Unit Mechanism
50
Confidential
DEVELOPMENT SYSTEM
The machine employs the two-component non-contact development system to
achieve even finer reproduction.
Figure 2-24. Development system
TCR SENSOR CONTROL
The TCR Sensor detects toner-to-carrier ratio (T/C) of the developer. In the
Mechanical Control Board, the amount of the toner supplied to the
Developing Unit is determined by the detected ratio. Magnetic Sensor is
mounted on the underside of the Developing Sections.
The magnetic permeability (powder density) of the carrier in the developer
is measured to determine the T/C.
A polyester film is provided for the Conveying Screw portion to scrape
toner off the surface of the TCR Sensor.
The TCR Sensor is integrated with the Photoconductor Unit. When the
TCR Sensor is breakdown, the entire Photoconductor Unit must be
replaced.
Figure 2-25. TCR Sensor
4036ma2013c0
PC Drum
Developing Roller
4038to503c0
4038T2C031AA
TCR Sensor
Polyester
film
Magnetic TCR Sensor
Summary of Contents for Aculaser C9200N
Page 1: ...SERVICE MANUAL A3 Color Laser Printer EPSONAcuLaser C9200N SEPG08001 Confidential ...
Page 11: ...Confidential C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 31: ...Confidential C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 96: ...Confidential C H A P T E R 3 TROUBLESHOOTING ...
Page 156: ...Confidential C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Page 313: ...Confidential C H A P T E R 5 ADJUSTMENT ...
Page 331: ...Confidential C H A P T E R 6 MAINTENANCE ...