Brother HL-5450DN Service Manual

5-1
Confidential
1. MAINTENANCE MODE
Maintenance mode is exclusively designed for checking, setting and adjusting the machine
using the buttons on the control panel.
LCD models are equipped with the same maintenance mode functions as those of the color
printer. Using these functions, you can conduct operational checks of sensors or test printing,
display the log information or error codes, and change the worker switches (WSW) etc.
Although LED models are not equipped with the above maintenance mode functions, they are
equipped with conventional maintenance mode functions using the [Go] button. Conventional
mode functions are also available on LCD models.
1.1 How to Enter Maintenance Mode
1.1.1 Method of entering end-user accessible maintenance mode
Basically, the maintenance mode functions should only be accessed by service personnel.
However, end users are allowed to use some of these functions under the guidance of service
personnel over the phone. For the maintenance mode functions for LCD models, end users
can only use the functions shaded in the table on page
5-3 (function codes 09, 12, 25, 28, 45,
77, 80, 82, and 91). For the maintenance mode functions using the [Go] button, end users can
use the functions shown in the "List of end-user accessible maintenance mode functions" on
page
5-4 .
<Operating Procedure>
 How to enter end-user accessible maintenance mode
(LCD models)
(1) Press the [OK], [Go], and [OK] buttons in this order while the machine is in the ready
state. "0" is displayed on the LCD.
(2) Press the [ ] or [ ] button several times until the desired maintenance mode function
is displayed on the LCD, and then press the [OK] button.
Each time the selected maintenance mode function is completed, the machine returns to
the ready state automatically.
For function codes 12, 25, 28, 45, 80, and 82, pressing the [Cancel] button returns the
machine to the ready state.
 How to enter end-user accessible maintenance mode using [Go] button
(LED models)
(1) Close the front cover while the power switch is turned OFF. Press and hold the [Go]
button, and turn ON the power switch.
(2) The Back Cover, Toner, Drum, Paper and Error LEDs light.
Release the [Go] button, and check that all LEDs go out.
(3) Press the [Go] button for the assigned number of times to select the function. (While you
are pressing the [Go] button, the Ready LED remains lit.)
Check that all LEDs light for one second.

Brother HL-5450DN Specifications

General

Color	No
N-up printing	2, 4, 9, 16, 25
Duplex printing	Yes
Print technology	Laser
Maximum resolution	2400 x 600 DPI
Time to first page (black, normal)	8.5 s
Print speed (black, normal quality, A4/US Letter)	38 ppm
Duplex print speed (black, normal quality, A4/US Letter)	9 ppm
Maximum duty cycle	- pages per month
Recommended duty cycle	1000 - 3500 pages per month
Number of print cartridges	1
Memory type	DDR2
Processor family	Star Sapphire
Maximum internal memory	320 MB
Sound power level (standby)	34 dB
Sound pressure level (printing)	59 dB
Sound pressure level (quiet mode)	54 dB
Total input capacity	250 sheets
Total output capacity	150 sheets
Maximum input capacity	800 sheets
Total number of input trays	2
Multi-Purpose tray input capacity	50 sheets
Custom media width	76.2 - 215.9 mm
Maximum print size	216 x 356 mm
Custom media length	127 - 355.6 mm
Paper tray media types	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, Recycled paper
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
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.
AC input voltage	220 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (off)	0.41 W
Power consumption (standby)	4.7 W
Power consumption (printing)	665 W
Power consumption (PowerSave)	0.6 W
Package weight	11.900 g
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Dimensions (WxDxH)	371 x 384 x 245 mm