Brother International IntelliFax-3550 Service Manual - Page 30
Location of Sensors and Actuators, Registration sensor Photosensor
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Registration sensor actuator Registration sensor (Photosensor) (Main PCB) Toner thermister (On back of PCB) (Relay PCB) Toner sensor (Low-voltage power supply PCB) Hook switch sensor (Microswitch) Hook switch sensor actuator (Toner sensor PCB) (Eraser lamp board) Document front sensor actuator Document front sensor (Photosensor) (Fixing unit) (Document sensor PCB) Sheet feeder cover sensor actuator Sheet feeder cover sensor (Photosensor) Cover sensor actuator Cover sensor (Microswitch) (High-voltage power supply PCB) Paper ejection sensor actuator Paper ejection sensor (Photosensor) Heater thermister Document rear sensor actuator Document rear sensor (Photosensor) Location of Sensors and Actuators III - 11
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III –
11
Hook switch sensor
(Microswitch)
Hook switch sensor
actuator
(Low-voltage power
supply PCB)
(Main PCB)
(Relay PCB)
Toner thermister
(On back of PCB)
Toner sensor
Registration sensor actuator
Registration sensor (Photosensor)
(Eraser lamp board)
(Fixing unit)
(Document sensor PCB)
Document front sensor actuator
Document front sensor (Photosensor)
(Toner
sensor
PCB)
Sheet feeder cover sensor actuator
Sheet feeder cover sensor
(Photosensor)
Cover sensor actuator
Cover sensor (Microswitch)
(High-voltage power
supply PCB)
Document rear sensor actuator
Document rear sensor
(Photosensor)
Heater thermister
Paper ejection sensor
actuator
Paper ejection sensor
(Photosensor)
Location of Sensors and Actuators