Brother HL-5450DN Service Manual

2-57
Confidential
4.2 Troubleshooting for Paper Feeding Problems
End users can solve problems related to paper feeding as long as they follow the User Check
items. If the problem still cannot be solved, implement each procedure according to the step
number in the tables below.
4.2.1 Multiple sheets of paper are fed
4.2.2 Paper becomes wrinkled
4.2.3 Paper is fed at an angle
<User Check>
- Check that the paper is set in each paper tray correctly.
- Check that there is not too much paper set in each tray.
- Reverse the paper in each paper tray or rotate the paper 180°.
- Check that the thickness of the paper is 60 to 105 g/m
2
. (60 to 163 g/m
2
for MP tray)
- Flip through the paper and reset it in the tray.
Step Cause Remedy
1
Abrasion of the separation pad or
separation roller
Replace the paper feeding kit for the
corresponding paper tray.
<User Check>
- Check that the paper is set in each paper tray correctly.
- Reverse the paper in each paper tray or rotate the paper 180°.
- Adjust the paper guide according to the paper size.
- Check that the thickness of the paper is 60 to 105 g/m
2
. (60 to 163 g/m
2
for MP tray)
- Check that the paper is not damp.
- Check that there is no dust stuck to the fuser unit.
Step Cause Remedy
1 Fuser unit failure Replace the fuser unit.
<User Check>
- Check that the paper is set in each paper tray correctly.
- Adjust the paper guide according to the paper size.
- Check that the thickness of the paper is 60 to 105 g/m
2
. (60 to 163 g/m
2
for MP tray)
- Check that there is not too much paper set in each tray.
Step Cause Remedy
1 Registration clutch failure Replace the registration clutch.
2 Main PCB failure Replace the main PCB ASSY.

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