Brother HL-L6250DN Service Manual

2-99
Confidential
4.3.2 Troubleshooting according to image defect
End users can solve problems related to image defect as long as they follow the User Check
items. If the problem still cannot be solved, implement each procedure according to the step
numbers in the tables below.
 Light
<User Check>
- Check the usage environment of the machine. Using the machine in
hot-humid or cold-dry conditions can cause this problem.
- If the whole page is light, toner save mode may be ON. Turn OFF
the toner save mode.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
- Turn ON the power switch, and leave the machine for a while
(condensation).
- Check that the paper is not damp.
- Use specified paper.
Step Cause Remedy
1
Dirt on the electrodes of the drum
unit and those of the machine
Clean the electrodes of the drum unit and
those of the machine. (Refer to Fig. 2-6 and
Fig. 2-7.)
2
Dirt on the electrodes of the toner
cartridge and those of the machine
Clean the electrodes of the toner cartridge
and those of the machine. (Refer to Fig. 2-6
and Fig. 2-7.)
3
Dirt on the electrodes of the
machine
Clean the electrodes of the machine.
(Refer to Fig. 2-7.)
4 Fuser unit failure Replace the fuser unit.
5
High-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.
6 Main PCB failure Replace the main PCB ASSY.
7 Laser unit failure Replace the laser unit.

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