Brother MFC-9840CDW Network User's Guide

Troubleshooting
166
15
Wireless network troubleshooting 15
Wireless setup problems 15
The Brother print server is not found during setup by the Wireless Device Setup Wizard. 15
a Make sure that the machine is powered on, is on-line and ready to print.
b Move your computer closer to the Brother machine and try again.
c Reset the print server back to its default factory settings and try again. For the information how to reset
to the factory default settings, see Restoring the network settings to factory default on page 104.
Why do I have to change my machine’s network setting to “Wired LAN” during setup although I am
trying to setup Wireless LAN? 15
If you are using Windows
®
98/98SE/Me/2000, Mac OS
®
X 10.2.4 or greater or your computer is connected
to the wireless network using a network cable, it is recommended you temporarily connect the machine to
your access point, hub or router using a network cable. You will also need to change your machine’s network
setting to wired LAN temporarily. Your machine’s network setting will be changed to wireless LAN during the
course of the setup.
 For Windows
®
:
See Using the Setup Wizard from the control panel on page 26 or Wireless configuration for
Windows
®
on page 33.
 For Macintosh
®
:
See Using the Setup Wizard from the control panel on page 26 or Wireless Configuration for
Macintosh
®
on page 58.
Wireless connection problem 15
The wireless network connection is sometimes disabled. 15
The wireless network connection status is affected by the environment where the Brother printer and other
wireless devices are located. The following conditions may cause connection problems:
 A concrete or metal framed wall is installed between the Brother machine and the access point.
 Electric appliances such as televisions, computer appliances, microwave ovens, intercoms,
mobile/cellular phones and the battery chargers and AC power adapters are installed close to your
network.
 A broadcast station or high-tension wire is located close to your network.
 A nearby fluorescent light is being switching on or off.

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