Brother HL-5450DN Technical Reference Guide

CHAPTER 2 PCL - 98
<Compressed Image Data>
Data compression compresses the original image data word by word (16 bits).
The compressed data consists of both horizontal compression which uses 16 bit, 8 bit and 4 bit repeating
patterns within 1 word or 2 words of data and vertical compression which indicates how many times to repeat
the same data as in the previous line within 1 word of data.
 Non-compressed data
When the most significant bit in the first 2 bytes is 0, the printer goes into non-compression mode. The
following 11 bits then indicate the number of words of data, the least significant 4 bits are not used. After that,
the image data follows word by word.
15 14 4 3 0
0 data word count (11 bits) not used
data 1 (16 bits)
:
data n (16 bits)
 16 bit repeating compressed data
When the most significant 3 bits in the first 2 bytes are in the order 1, 0, 0, the remaining 13 bits indicate the
number of times to repeat 16 bit data. The following 2 bytes should be the 16 bit data to repeat.
15 14 13 12 0
1 0 0 number of repeats(13 bits)
data to repeat(16 bits)
 8 bit repeating compressed data
When the most significant 3 bits in the first 2 bytes are in the order 1, 1, 0, the following 5 bits indicate the
number of times to repeat 16 bit (two by 8 bits) data. The remaining 8 bits should be the 8 bit data to repeat.
15 14 13 12 8 7 0
1 1 0 number of repeats data to repeat(8 bits)
(5 bits)
 4 bit repeating compression data
When the most significant 3 bits in the first 2 bytes are in the order 1, 0, 1, the following 4 bits are the 4 bit data
to repeat. The remaining 9 bits indicate the number of times to repeat the 16 bit (4 by 4 bits) data.
15 14 13 12 9 8 0
1 0 1 data to repeat number or repeats(9 bits)
(4 bits)
 Vertical repeating compressed data
When the most significant 3 bits in the first 2 bytes are in the order 1, 1, 1, the remaining 13 bits indicate the
same data words as in the previous line.
15 14 13 12 0
1 1 1 the same data words as in the previous line (13 bits)
The printer cannot support the APT and HRC function in the 1200 dpi printing mode.

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