Brother MFC-7220 User Manual

Confidential
3-3
3.2.1 Scanner Mechanism
3.2.2 Document Feeding and Ejecting Mechanism
This mechanism consists of the document base ASSY, automatic document feeder (ADF), document
ejection roller ASSY, and document sensors. (For details about the sensors, refer to Section 3.2.5.)
If you set documents on the document base ASSY with their faces down and start scanning
operation, then the scanner motor rotates so that the ADF (which consists of the document
separation roller, nip-related parts and ADF parts) feeds those documents into the equipment,
starting from the bottom sheet (first page) to the top (last page), page by page. Each document
advances with the LF roller to the CIS unit, and then it is fed out of the equipment with the
document ejection roller ASSY.
3.2.3 Scanner
The scanner uses a contact image sensor (CIS) unit which consists of an LED array illuminating
documents, a self-focus lens array collecting the reflected light, a CIS PCB carrying out
photoelectric conversion to output picture element data, and a cover glass on which a document
advance. When the document passes between the document pressure bar and the cover glass, it is
scanned.
The black/white scanner is provided with the machine.
Documen
t
Document
b
ase ASSY
Separation rubbe
r
Pinch rolle
r
CIS uni
t
Pressure rolle
r
Pape
r
ejection tray
Document ejection rolle
r
ASSY
Actuator F
Actuator R
LF rolle
r
Separation rolle
r

Brother MFC-7220 Specifications

General

Print technology	Laser
Maximum resolution	1200 x 600 DPI
Print speed (black, normal quality, A4/US Letter)	20 ppm
PC free copying	Yes
Copy speed (black, normal quality, A4)	20 cpm
Faxing	Mono faxing
Modem speed	14.4 Kbit/s
Total input capacity	250 sheets
Total output capacity	100 sheets
Auto document feeder (ADF) input capacity	20 sheets
Display	LCD
Market positioning	Home & office
Internal memory	16 MB
Dimensions (WxDxH)	452.12 x 492.76 x 429.26 mm
Power requirements	AC 120V 50/60Hz
All-in-one functions	Copy, Fax, Scan
Color all-in-one functions	Print
Compatible operating systems	Windows & Mac OS
Bundled software	Scansoft PaperPort SE with OCR for Windows and Presto PageManager for Mac
Sustainability certificates	ENERGY STAR
Power consumption (off)	10 W
Power consumption (standby)	75 W
Power consumption (average operating)	1032 W
Operating temperature (T-T)	50 - 91 °C
Non-operating relative humidity (non-condensing)	20 - 80 %
Digital sender	No
Maximum duty cycle	10000 pages per month

Weight and Dimensions

Weight	10795 g