Mechanisms - Minolta Di850 Service Manual

FIXING UNIT

[2] Mechanisms

Mechanism
Fixing
*1 Heat source
*2 Cleaning
Upper roller
Lower roller
*3 Fixing heat roller
Separation
Temperature detection
Overheating prevention
*4 Fixing roller (pressure) release Pressure release cam, spring
*5 Jam detection
*6 Thick paper conveyance
Pressure + heat roller
Heater lamp (fixing upper roller (two lamps), Fixing heat roller (one lamp))
Upper roller: Cleaning web (with silicon oil)
Fixing heat roller: Scraper
Aluminum + PFA coating (black)
Silicon rubber (black) + PFA tube
Aluminum + PTFE coating
Separation claws (6 upper and 2 lower claws)
Upper roller:
- Noncontact type thermistor (for control) TH1
- Contact type thermistor (for fault detection) TH2
Fixing heat roller:
- Noncontact type thermistor (for control) TH3
- Contact type thermistor (for fault detection) TH4
Noncontact type thermostat
(Upper roller (one), fixing heat roller (one))
Actuator + Photosensor
Thick paper conveyance auxiliary plate (movable) + Fixing guide solenoid
(SD3)
2-O-2
Method