Brother HL-2250DN Service Manual

3-1
Confidential
CHAPTER 3 DISASSEMBLY AND ASSEMBLY
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 the gears and 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.
• When connecting or disconnecting cable connectors, hold the connector body, not the
cables. If the connector has a lock, release the connector lock first to release it.
• After a repair, check not only the repaired portion but also all connectors. Also check that
other related portions are functioning properly before operational checks.
• After disconnecting flat cables, check that each cable is not damaged at its end or short-
circuited.
• When connecting flat cables, do not insert them at an angle. After insertion, check that the
cables are not at an angle.
• After an assembly, recommend the operation of "dielectric strength voltage check" and
"continuity check".
WARNING
• Always turn off the power switch and unplug the power cord from the power outlet
before accessing any parts inside the printer.
• When opening the front cover or back cover to access any parts inside the printer,
never touch the shaded parts shown in the following figures.
• DO NOT use flammable substances such as alcohol, benzine, thinner or any type
of spray to clean the inside or outside of the printer. Doing this may cause a fire or
electrical shock.

Brother HL-2250DN Specifications

General

Color	No
N-up printing	2, 4, 6, 25
Print technology	Laser
Maximum resolution	2400 x 600 DPI
Economical printing	Yes
Time to first page (black, normal)	8.5 s
Print speed (black, normal quality, A4/US Letter)	26 ppm
Duplex print speed (black, normal quality, A4/US Letter)	5 ppm
Maximum internal memory	- MB
Sound power level (standby)	31 dB
Sound pressure level (printing)	53 dB
Total input capacity	250 sheets
Total output capacity	100 sheets
Total number of input trays	1
Maximum duty cycle	- pages per month
Page description languages	PCL 6
Custom media width	76.2 - 216 mm
Maximum print size	216 x 406 mm
Custom media length	116 - 406.4 mm
Paper tray media types	Bond paper, Plain paper, Recycled paper
Paper tray media weight	60 - 105 g/m²
Non-ISO print media sizes	Letter
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
Multi-purpose tray media types	Bond paper, Envelopes, Heavyweight paper, Labels, Plain paper, Transparencies
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Sustainability certificates	ENERGY STAR
AC input voltage	220 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	65 W
Power consumption (printing)	495 W
Power consumption (PowerSave)	0.9 W
Package weight	8300 g
Operating temperature (T-T)	10 - 32.5 °C
Operating relative humidity (H-H)	20 - 80 %
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.
Mac operating systems supported	Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard
Server operating systems supported	Windows 2000 Advanced Server, Windows 2000 Server, Windows Server 2003, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 x64
Windows operating systems supported	Windows 2000 Professional, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business 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 Home x64, Windows XP Professional, Windows XP Professional x64

Weight and Dimensions

Dimensions (WxDxH)	368 x 360 x 183 mm