Brother HL-5450DN Service Manual

2-80
Confidential
4.11 Troubleshooting for Other Problems
4.11.1 Machine is not turned ON
4.11.2 Main fan does not rotate
4.11.3 Main motor failure
4.11.4 Unusual noise is generated from the machine
<User Check>
- Connect the AC cord correctly.
Step Cause Remedy
1
Connection failure of the panel PCB
harness
Check the connection of the panel PCB
harness, and reconnect it if necessary.
2 Panel PCB failure Replace the panel PCB ASSY.
3
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
4 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
Connection failure of the main fan
harness
Check the connection of the main fan
harness, and reconnect it if necessary.
2
Connection failure of the toner LED
PCB harness
Check the connection of the toner LED PCB
harness, and reconnect it if necessary.
3 Main fan failure Replace the main fan.
4 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
Connection failure of the main
motor harness
Check the connection of the main motor
harness, and reconnect it if necessary.
2 Main motor failure Replace the main motor ASSY.
3
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
4 Main PCB failure Replace the main PCB ASSY.
<User Check>
- Check that the covers are closed correctly.
- Set the duplex tray correctly.
- Set the paper trays correctly.
Step Cause Remedy
1
Possible cause differs depending
on the location. Identify the location
with the problem.
When the location with the problem is
identified, check for any foreign object
around that location.
2 Insufficient grease on parts Re-grease the parts.
3 Bent or defective part Replace the part.

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