Service Manuals, User Guides, Schematic Diagrams or docs for : Minolta Copiers CF3101 8031055wone
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8. Fusing Section
1. Improvements
2. Component Identification
3. Fusing Unit Drive Speed Control
4. Lower Fusing Roller Pressure/Retraction
5. Fusing Temperature Control
8.1 Improvements
Web Unit No Longer Needed
Oil Cleaning Roller No Longer Needed
Oil application mechanism
discontinued with adoption of
Polymerized Toner
Material of the Ni + Si Rubber+ PFA (Fluorine type)
Fusing Belt Surface Layer
Materials of the Metal Core + Si Rubber + PFA Surface
Pressure Roller Layer
-Longer Life / Better Toner Separation
(PFA Surface Layer gives stiffness to
the Belt and improves toner separation
performance.)
Pressure Roller Non-contact Type
Thermistor - Longer Life
Improvements
Heating Roller 35 mm
Diameter
Nip Width 9 mm (For higher speed)
Fusing Roller 6 mm (Better heating efficiency, Nip
(Sponge part) width ensured )
Pressure Roller 2.5 mm
(Rubber Thickness)
Fusing Speed Paper Loop Amount Sensor in Fusing
Detection Unit provides better Paper Transport
Accuracy in Fusing Unit
Fusing Unit Drive Pressure Roller
- Longer life
8.2 Component Identification
Heating Roller Thermistor Pressure Roller
Thermistor
Heating Roller Heater
Lamp 2 Pressure Roller
Heating Roller Heater
Lamp 1
Heating Roller
Heating Roller
Thermostat
Fusing Unit Pressure Roller
Fusing Belt Heater Lamp
Pressure Roller
Thermostat
Fusing Roller
Upper Paper
Separator Finger
8.3 Fusing Unit Drive Speed Control
8031
Type of Paper Fuser Unit
Drive Speed
Plain Paper 135m/s
Plain Paper: Glossy Mode, 60 mm/s
Thick Paper1/2/3,
OHP, Envelopes
Fusing Unit Drive
Paper Loop Amount Control
Pressure Roller
Fusing Unit
Drive Motor
Actuator
Loop Amount Sensor
Paper
2nd Transfer Roller
8.4 Lower Fusing Roller Pressure/Retraction
Fusing Pressure Drive Gear
Pressure Roller Retract Position
/Retraction Motor
Retracted
Pressed
Fusing Retraction Pressed Retracted
Position Sensor
Sector Gear
Pressure Roller
Fusing Pressure Position Sensor
Pressure/Retraction Timing
Conditions Pressure/Retraction Pressure Position
Operation
Power Switch ON If not in retracted Pressed >> Retracted
position
Warm-up Start Retracted >> Pressed
End Pressed >> Retracted
In standby Retracted
Print cycle Start Retracted >> Pressed Sector Gear
End Pressed >> Retracted
8.5 Fusing Temperature Control (1)
Temperature Control in each mode
Mode Heater Lamp Detected by Set Temperature
During a Heating Roller Heating Roller Large size CD width 217 mm or more
Copy Cycle Heater Lamp 1 Thermistor (degree C) >> See "Fusing Temperature
Control (2)"
Heating Roller Small size CD width 216 mm or less
Heater Lamp 2 Set Temperature are the same as above.
Pressure Roller Pressure Roller 130 degree C
Heater Lamp Thermistor (Color OHP: 180 degree C)
In the Heating Roller Heating Roller 190 degree C
Standby State Heater Lamp 1 Thermistor
Pressure Roller Pressure Roller 170 degree C
Heater Lamp Thermistor
In the Low Heating Roller Heating Roller 160 degree C
Power State Heater Lamp 1 Thermistor
Pressure Roller Pressure Roller 170 degree C
Heater Lamp Thermistor
Fusing Temperature Control (2)
Set Temperature for each paper type (degree C)
Paper Type Mode
Plain Paper Color 185
Bk 185
Thick 1 Color/Bk 185
Thick 2 Color/Bk 185
Thick 3 Color/Bk 185
OHP Color 200
Bk 190
Envelope Color/Bk 185
Fusing Temperature Control (3)
Warm-up Operation
Power Switch: ON
Pressure Roller Retracted
Pressure Roller Heater ON >> OFF at 170 deg. C
Fuser Drive Motor: ON
Pressure Roller Pressed
Heat Roller Heater 1 ON >> OFF at 190 deg. C
Pressure Roller Heater ON >> OFF at 170 deg. C
Heat Roller Heater 1 ON >> OFF at 190 deg. C
( No lighting at the same time )
Pressure Roller Retracted
Fuser Drive Motor OFF
Fusing Temperature Control (4)
Warm-up completed
Power Switch ON
Start key ON
Cancelled
During copy cycle,
C
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