Brother MFC-9840CDW Reference Manual

Confidential
Ref. 2-23
3.4.3 New Toner Detection
When a toner cartridge is changed, discrimination between new and secondhand toner
cartridges is performed by means of the new toner detection mechanism shown below.
<New Toner Detection Mechanism>
The rotation of the gear (1) of the toner cartridge is transmitted to the reset gear, and the rib of
the gear pushes down the reset upper lever attached to the drum unit.
By pushing down the reset upper lever, the linked reset lever turns and pushes up the new
toner actuator with its lever fitted on the main body. The detection mechanism detects that
new toner is provided.
- For high-capacity toner cartridges
The reset gear has two ribs. The new toner actuator is pushed up twice by these ribs,
allowing the presence of a high-capacity toner cartridge to be detected.
- For standard toner cartridges
The reset gear has one rib. The new toner actuator is pushed up once by this rib, allowing
the presence of a standard toner cartridge to be detected.
Fig. Ref2-20
Reset gear
Reset lever
Rib
Rib
Gear (1)
Rib
Rib
Reset gear
New toner actuator
Reset upper lever
Reset lever
* The figure shows a high-capacity toner cartridge.
Drum unit
Drum unit
Reset gear

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