EPSON AcuLaser C9200N
Revision D
OPERATING PRINCIPLES
Operating Principle of Main Unit Mechanism
38
Confidential
2.2.3 PH Unit
2.2.3.1 Composition
Figure 2-4. Composition
2.2.3.2 Operation
OUTLINE
4 types of the PH Unit are used for exposure process.
The surface of the Photo Conductor is irradiated with a laser light and an
electrostatic latent image is thereby formed.
2 Beam Array LD is used to prevent the rotation speed from increasing
caused by decreasing the number of the sides comparing to Polygon Mirror
which has four sides.
2 Beam Array LD scans in two lines two lasers irradiated by two LD
electrical components set up vertically with one side of Polygon Mirror.
Figure 2-5. Overview
4039T2C106AA
4038T2C008AA
PH Unit
4038T2C034AA
SOS Mirror
Laser Diode
Polygon Motor
SOS Sensor
4038t2J005AB
Transfer Belt
2nd Transfer
Roller
LD/K
LD/Y
LD/M
LD/C
PC Drum
Y
M
C
K
Beam A
Beam B
PC Drum
Return Mirror 1
Return Mirror 2
Laser Diode
Beam A
Beam B
Direction
of rotation
of the PC
Drum
Two lines
One scan
Surface of the PC Drum
Polygon
Mirror
G2 Lens
G1 Lens
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 ...