Brother MFC-7840W User Manual

Safety and legal
95
A
27 This equipment is not capable, under all operating conditions, of correct operation at the higher
speeds for which it is designed. Telecom will accept no responsibility should difficulties arise
in such circumstances. This condition typically applies to 56 kbit/s modems and facsimile
machines operating at >14.4 kbit/s.
28 When using the Caller Line Identification incorporated in this device, verify the integrity of the
recorded digits prior to dialling.
29 Some parameters required for compliance with Telecom’s Telepermit requirements are
dependent on the equipment (PC) associated with this device. The associated equipment shall
be set to operate within the following limits for compliance with Telecom’s Specifications:
 There shall be no more than 10 call attempts to the same number within any 30 minute
period for any single manual call initiation, and
 The equipment shall go on-hook for a period of not less than 30 seconds between the end
of one attempt and the beginning of the next call attempt.
 Automatic calls to different numbers are spaced such that there is not less than 5 seconds
between the end of one call attempt and the beginning of another.
 Equipment shall be set to ensure that calls are answered within 3 and 30 seconds of the
receipt of ringing.
30 In the event of any problem with this device, it is to be disconnected, and a CPE item connected
to one of its terminal ports may be connected directly in its place. The user should then arrange
for the product to be repaired. Should the matter be reported to Telecom as a wiring fault and
the fault is proven to be due to this product, a call out charge will be incurred by the customer.
31 The caller ID telephone numbers that are displayed and stored in this equipment include the
caller’s area code but not the toll access “0” prefix. When calling back it is necessary to add a
“0“ to the telephone number, or if the telephone number is a local number, omit the area code
digit. If the toll services of a service provider other than Telecom are being used then a toll
charge may be incurred if the “0” prefix toll access code and area code are used.
IMPORTANT-For Your Safety A
To ensure safe operation the three-pin plug supplied must be inserted only into a standard three-
pin power point which is effectively grounded through the normal household wiring.
Extension cords used with the equipment must be three-conductor and be correctly wired to
provide connection to ground. Incorrectly wired extension cords are a major cause of fatalities.
The fact that the equipment operates satisfactorily does not imply that the power is grounded and
that the installation is completely safe. For your safety, if in any doubt about the effective
grounding of the power, consult a qualified electrician.
IMPORTANT NOTICE A
Under power failure conditions, this telephone may not operate. Please ensure that a separate
telephone, not dependent on local power, is available for emergency use in emergencies.

Brother MFC-7840W Specifications

General

Print technology	Laser
Maximum resolution	600 x 2400 DPI
Time to first page (black, normal)	10 s
Print speed (black, normal quality, A4/US Letter)	22 ppm
Grayscale levels	256
Input color depth	24 bit
USB port	Yes
Standard interfaces	USB 2.0
USB 2.0 ports quantity	1
Dimensions (WxDxH)	428 x 396 x 304 mm
Networking features	10/100 Base-TX Ethernet
Wireless technology	IEEE802.11b/g
All-in-one functions	Copy, Fax, Scan
Color all-in-one functions	scan, n
Compatible operating systems	Windows Vista/XP-Home/2003/2000 Mac OS X 10.2.4 & later Linux printer driver
Copier resize	25 - 400 %
Maximum copy resolution	600 x 600 DPI
Maximum number of copies	99 copies
N-in-1 copy function (N=)	2, 4, 9, 16, 25
Copy speed (black, normal quality, A4)	22 cpm
Faxing	Mono faxing
Fax memory	500 pages
Fax coding methods	MH, MMR (Fax coding method), MR
Fax speed dialing (max numbers)	200
Maximum input capacity	250 sheets
Multi-Purpose tray input capacity	1 sheets
Auto document feeder (ADF) input capacity	35 sheets
Internal memory	32 MB
Sound power level (standby)	32 dB
Sound pressure level (printing)	53 dB
Media weight (tray 1)	60 - 105 g/m²
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Supported network protocols (IPv4)	IPv4, IPv6
Sustainability certificates	ENERGY STAR
Power consumption (standby)	75 W
Power consumption (PowerSave)	12 W
Power consumption (average operating)	320 W
Package weight	13.400 g
Market positioning	Home & office