Brother HL-5450DN Service Manual

2-76
Confidential
4.7 Troubleshooting for Toner and Drum Problems
4.7.1 New toner is not detected
4.7.2 Cartridge error (toner cartridge cannot be detected)
Failed to determine whether the toner cartridge is new or old
4.7.3 Drum error
<User Check>
- Be sure to set a new toner cartridge.
Step Cause Remedy
1
New toner actuator caught in some
sections of the machine
Reattach the new toner actuator.
2
Connection failure of the relay front
PCB harness
Reconnect the relay front PCB harness.
3
New toner sensor failure Refer to "1.3.8 Check sensor operation
(function code: 32)" in Chapter 5 to check
the sensor operation. If the sensor operation
is faulty, replace the relay front PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
The power switch was turned OFF
or the front cover was opened while
a new toner cartridge is being
detected.
Reset the developer roller counter. (Refer to
"1.4.21 Reset developer roller counter 1, 2,
3 or 4 (Common to all models)" in Chapter
5.)
2 New toner actuator coming off Reattach the new toner actuator.
3
New toner sensor failure Refer to "1.3.8 Check sensor operation
(function code: 32)" in Chapter 5 to check
the sensor operation. If the sensor operation
is faulty, replace the relay front PCB ASSY.
<User Check>
- Clean the corona wire of the drum unit.
- Replace the drum unit with a new one, and reset the drum counter.
Step Cause Remedy
1
Dirt (dust) on electrodes of the
drum unit
Clean the electrodes of the drum unit and
those of the machine. (Refer to Fig. 2-6 or
Fig. 2-7.)
2
High-voltage power supply PCB
failure
Replace the high-voltage power supply
PCB ASSY.
3 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