Brother MFC-7840W Service Manual

5-15
Confidential
1.4.9 ROM Version Check (Function code 25)
<Function>
This function allows you to check the management information of the software programs
such as version information, check sum.
<Operating Procedure>
(1) MFC7840W/7840N/7450/7440N/7340/7320
Press in order the 2 and 5 buttons in the initial stage of the maintenance mode.
DCP7045N/7040/7030
Press the or button. "MAINTENANCE 25" appears on the LCD, and then press the
OK button.
The machine displays each of terms described below on the LCD.
(2) Press the or button to check the next term.
How to display the checksum information
Terms displayed with "*" have the checksum information as well. Press the OK button
when its version information is displayed on the LCD. Press the OK button again to go
back to the version information display. Press the or buttons to check the next term.
Note :
If you press the OK button when each version information of Network is displayed on the
LCD, you cannot check the checksum information.
(3) To terminate this operation, press the Stop/Exit button. The machine beeps for one
second and returns to the initial stage of the maintenance mode.
LCD Description
TOTL: Ver A Main firmware version information (Revision information)
NET : Ver1.00 Network version information
U0612271600:7B0A* Main firmware creation date & check sum information
B0608071049:5708* Boot program creation date & check sum information

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