Brother HL-L6250DN Service Manual

2-1
Confidential
CHAPTER 2 ERROR INDICATIONS &
TROUBLESHOOTING
1. INTRODUCTION
Troubleshooting is a collection of solution procedures that service personnel should follow if
an error or malfunction occurs in the machine. It is difficult to determine troubleshooting
procedures for all possible problems that may occur in the future. Therefore, this chapter
describes typical problems and recovery procedures for these. These will help service
personnel identify and repair other similar defective sections.
1.1 Precautions
Be sure to observe the following precautions to prevent any secondary problems occurring
during troubleshooting:
(1) Be sure to unplug the AC cord before removing any covers or PCBs, or adjusting the
machine.
(2) Do not hold the cable when connecting or disconnecting the cable. Be sure to hold the
connector.
(3) Static electricity charged in your body may damage electronic parts.
Before handling the PCBs, touch a metal section of the machine to discharge static
electricity. When transporting PCBs, be sure to wrap them in conductive sheets.
When replacing the PCBs, wear a grounding wrist band and perform replacement on an
antistatic mat.
Also take care not to touch the conductor sections on the flat cables.
(4) Be sure to always observe all warnings.
(5) After repair is completed, check that the repaired sections, including those removed
once and then remounted, operate normally.
A certain interface or function could be set to invalid to serve the needs of customers. Ask
sales representative if this is the case before performing the check.
Warning
Hazard labels as shown below are attached to the machine. Fully understand the
descriptions on the hazard labels and observe them during troubleshooting. Take
extreme care not to remove or damage the hazard labels.
Warning
DO NOT use any flammable spray or flammable solvent such as alcohol, benzine,
or thinner in or around the machine. Otherwise a fire or electric shock may result.

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