Brother HL-L6250DN Service 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.
• The insulation sheet should not be damaged.
• When replacing the PCB, clear the component side and solder side from foreign objects.
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.

Brother HL-L6250DN Specifications

General

Duplex printing	Yes
Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Duplex printing mode	Auto
Time to first page (black, normal)	7.5 s
Print speed (black, normal quality, A4/US Letter)	46 ppm
Processor model	Cortex-A9
Processor family	ARM Cortex
Maximum internal memory	- MB
Sound power level (standby)	35 dB
Sound pressure level (printing)	54 dB
Sound pressure level (quiet mode)	50 dB
Display	LCD
Product color	Gray
Display number of lines	16 lines
Printing colors	Black
Recommended duty cycle	0 - 5000 pages per month
Number of print cartridges	1
Page description languages	BR-Script 3, Epson FX, IBM ProPrinter XL24E, PCL 6, PDF 1.7
Cables included	AC
Standard interfaces	Ethernet, USB 2.0
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Package depth	450 mm
Package width	485 mm
Package height	531 mm
Package weight	15000 g
Power consumption (off)	0.04 W
Power consumption (standby)	32 W
Power consumption (printing)	740 W
Power consumption (PowerSave)	390 W
Energy Star Typical Electricity Consumption (TEC)	2.162 kWh/week
Sustainability certificates	Blue Angel, ENERGY STAR
Paper tray media types	Envelopes, Plain paper, Recycled paper, Thick paper, Thin paper
Paper tray media weight	60 - 120 g/m²
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size)
ISO A-series sizes (A0...A9)	A4, A5, A6
Multi-purpose tray media types	Bond paper, Envelopes, Labels, Letterhead, Plain paper, Recycled paper, Thick paper, Thicker paper, Thin paper
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 200 g/m²
Security algorithms	EAP-FAST, EAP-MD5, EAP-TLS, EAP-TTLS, HTTPS, IPPS, IPSEC, PEAP, SNMP, SSL/TLS
Mobile printing technologies	Apple AirPrint, Brother iPrint & Scan, Google Cloud Print, Mopria Print Service, Windows RT
Supported network protocols (IPv4)	ARP, RARP, BOOTP, DHCP, APIPA (Auto IP), WINS/NetBIOS name resolution, DNS resolver, mDNS, LLMNR responder, LPR/ LPD, custom Raw Port/Port9100, IPP/IPPS, FTP server, TELNET server, HTTP/HTTPS server, TFTP client en server, SMTP client, SNMPv1/v2c/ v3, ICMP, web services (printen), CIFS client, SNTP client, LDAP
Supported network protocols (IPv6)	NDP, RA, DNS resolver, mDNS, LLMNR responder, LPR/LPD, custom raw port/ Port9100, IPP/IPPS, FTP server, TELNET server, HTTP/HTTPS server, TFTP client en server, SMTP client, SNMPv1/v2c, ICMPv6, web services (print), CIFS client, SNTP client, LDAP
Paper input type	Paper tray
Total input capacity	520 sheets
Total output capacity	150 sheets
Maximum input capacity	1040 sheets
Maximum number of input trays	2
Multi-Purpose tray input capacity	50 sheets
Mac operating systems supported	Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Windows operating systems supported	Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 Pro, Windows 10 Pro x64, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Professional, Windows XP Professional x64
Harmonized System (HS) code	84433210

Weight and Dimensions

Depth	388 mm
Width	373 mm
Height	287 mm