Brother MFC-9840CDW Reference Manual

Confidential
Ref. 2-11
3.3.1 Plate-up Function of the Paper Tray
The plate of the paper tray is pushed up by the force exerted by the motor not by springs so as
to keep paper-feeding performance constant irrespective of the quantity of papers remaining in
the tray. This paragraph provides an overview of this function.
At the time of inserting the paper tray into the main body of the product, the plate is kept
lowered. When the paper feed/belt cleaner motor is operated under such condition, a driving
force is transmitted to the lift gear Z42M75 by way of several gears. The force is also
transmitted to the plate-up plate to push up the plate.
Fig. Ref2-12
When the plate is pushed up, the T1 lift arm goes down and the hook B is released. The PP
gear clutch cam off the hook B rotates to push down the rib of the hook A. Subsequently, the
ratchet of the hook A for the clutch gear deviates from the gear and the plate-up plate stops its
push-up function.
Fig. Ref2-13
Plate
Plate-up plate
Lift gear Z42M75
PP gear clutch cam
Plate-up plate
T1 lift arm
Hook A
Plate
Clutch gear
Hook B

Brother MFC-9840CDW Specifications

General

Print technology	Laser
Maximum resolution	600 x 2400 DPI
Economical printing	Yes
Time to first page (black, normal)	16 s
Time to first page (color, normal)	17 s
Print speed (black, normal quality, A4/US Letter)	20 ppm
Scan to	E-mail, FTP, OCR, USB
Scanner type	Flatbed scanner
Grayscale levels	256
Input color depth	48 bit
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	1200 x 2400 DPI
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
N-in-1 copy function (N=)	4, 9, 16, 25
Copy speed (black, normal quality, A4)	16 cpm
Faxing	Mono faxing
Fax memory	400 pages
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	300
Total input capacity	250 sheets
Total output capacity	150 sheets
Multi-Purpose tray input capacity	50 sheets
Auto document feeder (ADF) input capacity	35 sheets
Internal memory	128 MB
Sound power level (standby)	30 dB
Sound pressure level (printing)	54.5 dB
Custom media sizes	(69.9 - 216mm) - (116 - 406.4mm)
Dimensions (WxDxH)	530 x 539 x 520 mm
Networking features	10/100Base-TX
Wireless technology	IEEE 802.11b/g
All-in-one functions	Copy, Fax, Scan
Maximum internal memory	0.640 GB
Color all-in-one functions	copy, print, scan
Media weight (tray 1)	60 - 105g/m2
Paper tray media types	Bond paper, Envelopes, Labels, Plain paper, Recycled paper
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size), Legal (media size), Letter (media size)
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
JIS B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Security algorithms	LEAP
Supported network protocols (IPv4)	TCP/IP (IPv4 & IPv6)
Standard interfaces	USB 2.0
USB 2.0 ports quantity	1
Bundled software	ScanSoft PaperPort (Win) NewSoft Presto! PageManager (Mac)
Power consumption (PowerSave)	36 W
Power consumption (average operating)	515, 100 W
Package weight	45800 g
Digital sender	No
Maximum duty cycle	3000 pages per month
Market positioning	Business