Brother MFC-B7715DW User Manual

3-1
Confidential
CHAPTER 3 DISASSEMBLY/REASSEMBLY
1. SAFETY PRECAUTIONS
To avoid creating secondary problems by mishandling, follow the warnings and precautions
below during maintenance work.
• Be careful not to lose screws, washers, or other parts removed.
• Be sure to apply grease to applicable positions specified in this chapter.
• When using soldering irons or other heat-generating tools, take care not to accidentally
damage parts such as wires, PCBs and covers.
• Static electricity charged in your body may damage electronic parts. When transporting
PCBs, be sure to wrap them in conductive sheets.
• When replacing the PCB and all the other related parts, put on a grounding wrist band and
perform the job on a static mat. Also take care not to touch the conductor sections on the
flat cables or on the wire harness.
• After disconnecting flat cables, check that each cable is not damaged at its end or
shortcircuited.
• When connecting flat cables, do not insert them at an angle. After insertion, check that the
cables are not at an angle.
• When connecting or disconnecting harnesses, hold the connector body, not the cables. If
the connector is locked, release it first.
• After a repair, check not only the repaired portion but also harness treatment. Also check
that other related portions are functioning properly.
• Forcefully closing the front cover without mounting the toner cartridge and the drum unit
can damage the machine.
• After assembly, it is recommended to conduct dielectric strength test and continuity test.
• When mounting the inlet, check that the inlet is housed in the frame completely and that
the harness is not caught in the frame.
• The insulation sheet should not be damaged.
• After a repair, update the firmware to the latest version.
WARNING
Some parts inside the machine are extremely hot immediately after the machine is used.
When opening the front cover ASSY or back cover to access any parts inside the
machine, never touch the shaded parts shown in the following figures.
WARNING
When removing the Low-voltage power supply, do not touch it
within 3 minutes after disconnecting the AC cord as it may cause
an electric shock due to the electric charge accumulated in the
capacitor.

Brother MFC-B7715DW Specifications

General

N-up printing	2, 4, 9, 16, 25
Secure printing	Yes
Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Duplex printing mode	Auto
Warm-up time (from sleep mode)	9 s
Time to first page (black, normal)	8.5 s
Print speed (black, normal quality, A4/US Letter)	34 ppm
Duplex print speed (black, normal quality, A4/US Letter)	16 ppm
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
Copy speed (black, normal quality, A4)	34 cpm
Scan to	E-mail, FTP, File, Image, OCR
Scan drivers	SANE, TWAIN, WIA
Grayscale levels	256
Output color depth	24 bit
Scan speed (black)	22.5 ppm
Scan speed (color)	7.5 ppm
Output grayscale depth	8 bit
Maximum scan resolution	19200 x 19200 DPI
Faxing	Mono faxing
Fax memory	400 pages
Fax coding methods	JBIG
Fax transmission speed	33.6 sec/page
Digital sender	No
Printing colors	Black
Maximum duty cycle	15000 pages per month
Number of PostScript fonts	66
Number of print cartridges	1
Page description languages	BR-Script 3, PCL 6, PDF 1.7
Paper input type	Paper tray
Total input capacity	250 sheets
Total output capacity	120 sheets
Multi-Purpose tray input capacity	1 sheets
Auto document feeder (ADF) input capacity	50 sheets
Custom media width	76.2 - 215.9 mm
Custom media length	127 - 355.6 mm
Paper tray media types	Plain paper
Paper tray media weight	60 - 163 g/m²
ISO A-series sizes (A0...A9)	A4, A5, A6
Multi-purpose tray media types	Executive, Legal, Letter
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 230 g/m²
Auto Document Feeder (ADF) media weight	64 - 105 g/m²
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Cabling technology	10/100Base-T(X)
Security algorithms	64-bit WEP, 128-bit WEP, WPA-PSK, WPA2-PSK, WPS
Ethernet LAN data rates	10, 100 Mbit/s
Mobile printing technologies	Apple AirPrint, Brother iPrint & Scan, Google Cloud Print, Mopria Print Service
Supported network protocols (IPv4)	ARP, RARP, BOOTP, DHCP, APIPA(Auto IP), WINS/NetBIOSnameresolution, DNS Resolver, mDNS, LLMNR responder, LPR/LPD, CustomRaw Port/Port9100, SMTP, IPP/IPPS, FTP, SNMPv1/v2c/v3, HTTP/HTTPS, TFTP, ICMP, Web Services, SNTP
Supported network protocols (IPv6)	NDP, RA, DNS resolver, mDNS, LLMNR responder, LPR/LPD, CustomRaw Port/Port9100, IPP/IPPS, SMTP, FTP, SNMPv1/v2c/v3, HTTP/ HTTPS, TFTP, ICMPv6, SNTP, Web Services
Internal memory	128 MB
Sound power level (standby)	30 dB
Sound pressure level (printing)	49 dB
Sound pressure level (quiet mode)	44 dB
Product color	Gray
Market positioning	Home & office
Display number of lines	2 lines
Mac operating systems supported	Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina
Server operating systems supported	Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016
Windows operating systems supported	Windows 10, Windows 7, Windows 8, Windows 8.1
AC input voltage	220 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (sleep)	6.2 W
Power consumption (standby)	42 W
Power consumption (printing)	475 W
Power consumption (average operating)	- W
Energy Star Typical Electricity Consumption (TEC)	1348 kWh/week
Package depth	517 mm
Package width	580 mm
Package height	434 mm
Package weight	15100 g
Quantity per pack	1 pc(s)
Sustainability certificates	RoHS, ENERGY STAR

Weight and Dimensions

Depth	398.5 mm
Width	410 mm
Height	318.5 mm
Weight	12000 g