Brother MFC620CN Service Manual page 92

Scanner Mechanism
(See Section 3.2.1.)
Printing Mechanism
(See Section 3.2.2.)
Encoders
(See Section 3.2.3.)
Sensors
(See Section 3.2.3.)
Thermistor
(See Section 3.2.3.)
- Document scanning mechanism
- Automatic document feeder (ADF)
mechanism*
(*Provided on the MFC620CN/425CN/420CN/ DCP120C and FAX2440C)
- Paper pulling-in, registration, paper
feeding, and ejecting mechanisms
(See Section 3.2.2.1.)
- Ink supply and ink jet mechanism
(See Section 3.2.2.2.)
- Head maintenance mechanism
(carriage lock, head caps, purge, vent,
and head wiper)
(See Section 3.2.2.3.)
- Carriage drive mechanism
(See Section 3.2.2.4.)
- Carriage motor (CR) encoder
- Paper feed motor (PF) encoder
- Document front and rear sensors (MFC620CN/425CN/420CN/
DCP120C and FAX2440C)
- Scanner open sensor
- Registration sensor
- Paper width (media) sensor
- Ink cartridge sensors
- Large-volume ink cartridge sensor (FAX2440C)
- Purge cam switch
- Hook switch sensor (MFC620CN U.S.A./Canadian models and
FAX2440C)
- Head thermistor
3-4
CIS motor
(stepping motor)
ADF motor*
(stepping motor)
Paper feed motor
(DC motor)
Paper feed motor
(DC motor)
Carriage motor
(DC motor)
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