Brother MFC-9840CDW - Loading Paper and Documents

Confidential
Ref. 2-1
REFERENCE 2 THEORY OF OPERATION
1. GENERAL BLOCK DIAGRAM
ADF motor
ADF
driver
Low-voltage
power supply
block
FB motor
CCD unit
ADF sensors
Speaker
Battery
Telephone lines NCU
Video control block
Engine control block
Operation block
(Panel)
Video control system
Charge HVPS block
Laser unit
Drum unit
Blet unit
Develop unit
KYMC
KYMC
Paper tray
Fuser unit
Paper eject tray
Paper feed system
Image forming system
Internal RAM
Extended RAM
DIMM 144pin
Engine control system
Exposure system
Belt cleaner block
Transfer HVPS block
Develop drive motor
Develop release motor
Belt unit
drive motor
Paper feed/
belt cleaner motor
Interface
(Network)
Interface
(USB host)
USB host block
Wireless LAN module
(MFC-9840CDW)
USB device
or Digital camera
Interface
(Centronics)
Interface
(USB)
Drum drive motor 1
Drum drive motor 2
External device
Toner
Developing block
Exposure drum
Cleaner block
Transfer block
Charging block
Toner
Developing block
Exposure drum
Cleaner block
Transfer block
Charging block
Toner
Developing block
Exposure drum
Cleaner block
Transfer block
Charging block
Toner
Developing block
Exposure drum
Cleaner block
Transfer block
Charging block
Fig. Ref2-1