Brother MFC640CW - Scanner Mechanism; Printing Mechanism

3-3 Confidential
- Document scanning mechanism CIS motor
(stepping motor)
 Scanner Mechanism
(See Section 3.2.1.)
- Automatic document feeder (ADF)
mechanism
ADF motor
(stepping motor)
- Paper pulling-in, registration, paper
feeding, and ejecting mechanisms
(See Section 3.2.2.1.)
Paper feed motor
(DC motor)
- 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.)
Paper feed motor
(DC motor)
 Printing Mechanism
(See Section 3.2.2.)
- Carriage drive mechanism
(See Section 3.2.2.4.)
Carriage motor
(DC motor)
 Encoders
(See Section 3.2.3.)
- Carriage motor (CR) encoder
- Paper feed motor (PF) encoder
 Sensors
(See Section 3.2.3.)
- Document front and rear sensors
- Scanner open sensor
- Registration sensor
- Paper width (media) sensor
- Ink cartridge sensors
- Purge cam switch
- Hook switch sensor (MFC640CW)
 Thermistor
(See Section 3.2.3.)
- Head thermistor