Epson Aculaser C9200N, Service Manual

Page: 75 / 441

EPSON AcuLaser C9200N Revision D
OPERATING PRINCIPLES Operating Principle of Main Unit Mechanism 75
Confidential
2.2.14.2 Drive
Figure 2-65. Drive overview
2.2.14.3 Operation
FUSING ROLLER DRIVE CONTROL
†
Fusing Roller Speed Change Control
„
The Fusing Roller (Heating Roller/Fusing Pressure Roller) is driven by
the Fusing Motor (M4). The Fusing Motor (M4) drives the Heating
Roller. The Fusing Pressure Roller rotates along with the Heating
Roller.
„
In order to avoid fusing error, the rotation speed of the Fusing Roller is
to be set to one of 2 levels according to the paper type or the print mode.
†
Fusing Loop Control
By creating a paper loop, the speed difference between the fusing and
paper conveyance at 2nd transfer part will be adjusted. It prevents the
double transferred image or brush effect.
Figure 2-66. Fusing Loop Control
Table 2-3. Rotation speed of the Fusing Roller
Paper Type/Print Mode Fusing Speed
Plain paper/Monochrome Normal speed
Plain paper/Color Normal speed
Thick paper Low speed
OHP transparencies Low speed
4038T2C034DA
Fusing Pressure Roller
Fusing Drive Motor (M4)
Heating Roller
4038T2C195AA
Fusing Loop Detect Sensor (PC3)
ON OFF