EPSON AcuLaser C9200N
Revision D
OPERATING PRINCIPLES
Operating Principle of Main Unit Mechanism
76
Confidential
HEATER LAMP CONSTRUCTION
Three heater lamps are controlled to be turned ON/OFF so the temperature of
the Heating Roller and the Fusing Pressure Roller will stay appropriate to
completely fuse the image.
Heater Lamp Construction
The Heating Roller has two heaters with different heat quantities and light
distributions.
Pressure Heater Lamp Construction
The Pressure Roller has the Pressure Roller Heater Lamp (H2) to heat up.
THERMISTOR CONSTRUCTION
The Fusing Roller (Heating/Fusing Pressure) has five Thermistors. (Three on
the Heating Roller, two on the Fusing Pressure Roller.)
Heating Roller Thermistor
Figure 2-67. Heating Roller Thermistor
Fusing Pressure Roller Thermistor
Figure 2-68. Fusing Pressure Thermistor
Table 2-4. Heater Lamp Construction
Name
Symbol
Light
emission
Function
Heating Roller Heater Lamp/1
H1
Long
Light will emit to heat to the edge of the
roller
Heating Roller Heater Lamp/2
H3
Short
Light will emit to heat only the center of
the roller
Table 2-5. Heating Roller Thermistor Construction
Name
Symbol
Function
Heating Roller Thermistor/1
TH1
The main thermistor which detects the temperature at
the center of the Heating Roller
Heating Roller Thermistor/2
TH3
The sub-thermistor which detects the temperature at the
edge of the Heating Roller
Heating Roller Thermistor/3
TH4
The protection thermistor which detects the abnormally
high temperature of the Heating Roller
Table 2-6. Pressure Roller Thermistor Construction
Name
Symbol
Function
Fusing Pressure Roller
Thermistor/1
TH2
The main thermistor which detects the temperature at
the center of the Fusing Pressure Roller
Fusing Pressure Roller
Thermistor/2
TH5
The protection thermistor which detects the abnormally
high temperature of the Fusing Pressure Roller
4038T2C156AA
4038T2C158AA
TH1
TH3 TH4
Heating Roller
4038T2C157AA
4038T2C159AA
TH2
TH5
Fusing Pressure Roller
Содержание Aculaser C9200N
Страница 1: ...SERVICE MANUAL A3 Color Laser Printer EPSONAcuLaser C9200N SEPG08001 Confidential ...
Страница 11: ...Confidential C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 31: ...Confidential C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 96: ...Confidential C H A P T E R 3 TROUBLESHOOTING ...
Страница 156: ...Confidential C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 313: ...Confidential C H A P T E R 5 ADJUSTMENT ...
Страница 331: ...Confidential C H A P T E R 6 MAINTENANCE ...
Страница 337: ...Confidential C H A P T E R 7 APPENDIX ...
Страница 362: ...EPSON AcuLaser C9200N Revision D APPENDIX Information Sheet 362 Confidential Figure 7 5 Maintenance Status Sheet ...