Brother HL-5450DN Service Manual

iv
Confidential
9.40 Registration front/rear sensor PCB ASSY / Registration front actuator
/ Registration rear actuator / Registration actuator spring ................................................. 3-73
10. DISASSEMBLY PROCEDURE (LT UNIT)................................................................................. 3-76
10.1 Paper tray 2 ....................................................................................................................... 3-76
10.2 T2 roller holder ASSY........................................................................................................ 3-78
10.3 T2 side cover L .................................................................................................................. 3-79
10.4 T2 side cover R.................................................................................................................. 3-80
10.5 T2 front cover ASSY.......................................................................................................... 3-81
10.6 T2 relay PCB ASSY........................................................................................................... 3-82
10.7 T2 clutch ............................................................................................................................ 3-83
10.8 T2 paper feed sensor PCB ASSY...................................................................................... 3-84
10.9 T2 back cover .................................................................................................................... 3-88
10.10LT connector ASSY (T2).................................................................................................... 3-89
CHAPTER 4 ADJUSTING AND UPDATING SETTINGS
AS REQUIRED AFTER PARTS REPLACEMENT
1. IF YOU REPLACE THE MAIN PCB ASSY .................................................................................. 4-1
1.1 Installing Firmware (Sub Firmware, Main Firmware)........................................................... 4-2
1.1.1 Checking firmware version .................................................................................... 4-2
1.1.2 Installing firmware ................................................................................................. 4-2
1.2 Setting Default Paper Size................................................................................................... 4-4
1.3 Setting Serial Number and Entering Adjusted Value of Laser Unit...................................... 4-5
2. IF YOU REPLACE THE LASER UNIT ......................................................................................... 4-7
2.1 Entering Adjusted Value of Laser Unit................................................................................. 4-8
3. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB ASSY ................................ 4-10
3.1 Resetting Irregular Power Supply Detection Counter ........................................................ 4-10
4. IF YOU REPLACE THE HIGH-VOLTAGE POWER SUPPLY PCB ASSY................................ 4-11
4.1 Initializing Pre-discharge Detection Parameters................................................................ 4-11
5. IF YOU REPLACE ANY PERIODIC REPLACEMENT PARTS ................................................. 4-12
5.1 Resetting Counter of Periodic Replacement Parts ............................................................ 4-12
CHAPTER 5 SERVICE FUNCTIONS
1. MAINTENANCE MODE................................................................................................................ 5-1
1.1 How to Enter Maintenance Mode ........................................................................................ 5-1
1.1.1 Method of entering end-user accessible maintenance mode................................ 5-1
1.1.2 Method of entering maintenance mode for service personnel .............................. 5-2
1.2 List of Maintenance Mode Functions................................................................................... 5-3
1.2.1 List of maintenance mode functions for LCD models............................................ 5-3
1.2.2 List of maintenance mode functions using [Go] button for LED models................ 5-4
1.3 Details of Maintenance Mode Functions for LCD Models.................................................... 5-6
1.3.1 Initialize EEPROM parameters (function code: 01, 91)......................................... 5-6
1.3.2 Print test pattern (function code: 09) ..................................................................... 5-7

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