Product comparison · 2 laser printers

HP LaserJet M251n Colour vs HP Q7546A laser printer

48specifications compared
37differ
11identical
33known for one product only

Key differences

Colour
- LaserJet M251n Colour:Yes
- Q7546A laser printer:No
Duplex printing mode
- LaserJet M251n Colour:Manual
- Q7546A laser printer:Auto
Maximum resolution
- LaserJet M251n Colour:600 x 600 DPI
- Q7546A laser printer:1200 x 1200 DPI
Print speed (black, normal quality, A4/US Letter)
- LaserJet M251n Colour:14 ppm
- Q7546A laser printer:35 ppm
Maximum duty cycle
- LaserJet M251n Colour:1500 pages per month
- Q7546A laser printer:65000 pages per month
Recommended duty cycle
- LaserJet M251n Colour:0 - 30000 pages per month
- Q7546A laser printer:2500 - 10000 pages per month
Page description languages
- LaserJet M251n Colour:PCL 5c, PCL 6, PostScript 3
- Q7546A laser printer:PCL 5e, PCL 6, PostScript 3
Total input capacity
- LaserJet M251n Colour:150 sheets
- Q7546A laser printer:250 sheets

Side by side

Differences highlightedShow differences only

Comparison of M251n, Q7546A
81 specifications	A HP LaserJet M251n Colour Model M251n View product	B HP Q7546A laser printer Model Q7546A View product
Printing4 differ
ColourDiffers	Yes	No
Print technology	Laser	Laser
Duplex printing	Yes	Yes
Duplex printing modeDiffers	Manual	Auto
Maximum resolutionDiffers	600 x 600 DPI	1200 x 1200 DPI
Print resolution colourKnown for one	600 x 600 DPI	Unknown — not stated by the source
Print resolution blackKnown for one	600 x 600 DPI	Unknown — not stated by the source
Print speed (black, normal quality, A4/US Letter)Differs	14 ppm	35 ppm
Print speed (colour, normal quality, A4/US Letter)Known for one	14 ppm	Unknown — not stated by the source
Time to first page (black, normal)Known for one	18.5 s	Unknown — not stated by the source
Time to first page (colour, normal)Known for one	19 s	Unknown — not stated by the source
Print speed (black, draft quality, A4/US Letter)Known for one	Unknown — not stated by the source	35 ppm
Features3 differ
Maximum duty cycleDiffers	1500 pages per month	65000 pages per month
Recommended duty cycleDiffers	0 - 30000 pages per month	2500 - 10000 pages per month
Printing coloursKnown for one	Black, Cyan, Magenta, Yellow	Unknown — not stated by the source
Page description languagesDiffers	PCL 5c, PCL 6, PostScript 3	PCL 5e, PCL 6, PostScript 3
HP segmentKnown for one	Business	Unknown — not stated by the source
Input & output capacity3 differ
Total input capacityDiffers	150 sheets	250 sheets
Total output capacityDiffers	125 sheets	250 sheets
Maximum output capacityDiffers	125 sheets	250 sheets
Paper tray 2 input capacityKnown for one	Unknown — not stated by the source	250 sheets
Auto document feeder (ADF) input capacityKnown for one	Unknown — not stated by the source	500 sheets
Paper handling6 differ
Maximum ISO A-series paper sizeDiffers	A4	A3
Maximum print sizeKnown for one	216 x 356 mm	Unknown — not stated by the source
Paper tray media typesDiffers	Bond paper, Card stock, Envelopes, Glossy paper, Heavy paper, Labels, Photo paper, Plain paper, Pre-printed, Recycled paper, Transparencies	Bond paper, Card stock, Envelopes, Labels, Plain paper, Pre-printed, Recycled paper, Transparencies
ISO A-series sizes (A0...A9)Differs	A4, A5, A6	A3, A4, A5, A6
ISO B-series sizes (B0...B9)Differs	B5	B4, B5, B6
JIS B-series sizes (B0...B9)Known for one	B5	Unknown — not stated by the source
Envelopes sizesDiffers	B5, C5, DL	DL
Photo paper sizes (imperial)Known for one	10x15"	Unknown — not stated by the source
Paper tray media weightDiffers	60 - 163 g/m²	60 - 199 g/m²
ISO C-series sizes (C0...C9)Known for one	Unknown — not stated by the source	C5
Non-ISO print media sizesKnown for one	Unknown — not stated by the source	Executive, Legal, Letter, Statement
Ports & interfaces1 differ
Standard interfacesDiffers	Ethernet, USB 2.0	Ethernet, Parallel, USB 2.0
USB 2.0 ports quantity	1	1
Networkidentical
Wi-FiKnown for one	No	Unknown — not stated by the source
Ethernet LAN	Yes	Yes
Network ready	Yes	Yes
Security algorithmsKnown for one	802.1x RADIUS, HTTPS, SSL/TLS	Unknown — not stated by the source
Supported network protocols (IPv4)Known for one	TCP/IP	Unknown — not stated by the source
Supported network protocols (IPv6)Known for one	TCP/IP	Unknown — not stated by the source
Management protocolsKnown for one	SNMP v1/v2/v3, HTTP/HTTPS, Telnet, TFTP, FTP	Unknown — not stated by the source
Performance2 differ
Internal memory	128 MB	128 MB
Maximum internal memoryDiffers	128 MB	512 MB
Card reader integratedKnown for one	No	Unknown — not stated by the source
Processor frequencyDiffers	750 MHz	460 MHz
Sound pressure level (printing)Known for one	47 dB	Unknown — not stated by the source
Design1 differ
Product colourDiffers	Black	Grey
Built-in display	Yes	Yes
Display	LCD	LCD
TouchscreenKnown for one	No	Unknown — not stated by the source
Display number of lines	2 lines	2 lines
CertificationKnown for one	IEC, EN, UL/cUL, GS, CE, CISPR, FCC, ICES	Unknown — not stated by the source
Power4 differ
Power consumption (printing)Differs	315 W	600 W
Power consumption (standby)Differs	5.1 W	27 W
Power consumption (off)Differs	0.2 W	0.5 W
AC input voltageDiffers	110 - 240 V	110 - 127 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Power consumption (PowerSave)Known for one	Unknown — not stated by the source	7.5 W
System requirements3 differ
Windows operating systems supportedDiffers	Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Win	Yes
Mac operating systems supportedDiffers	Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion	Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Linux operating systems supportedDiffers	Fedora 11, Fedora 12, Fedora 9, RedHat EL Linux 5.0, SuSE Linux 10.3, SuSE Linux 11, Ubuntu 10.04, Ubuntu 8.04, Ubuntu 8.10, Ubuntu 9.04, Ubuntu 9.10, Yes	Yes
Server operating systems supportedKnown for one	Windows Server 2003, Windows Server 2008, Windows Server 2008 x64	Unknown — not stated by the source
Minimum RAMKnown for one	1024 MB	Unknown — not stated by the source
Minimum processorKnown for one	1 GHz	Unknown — not stated by the source
Minimum storage drive spaceKnown for one	200 MB	Unknown — not stated by the source
Operational conditions2 differ
Operating temperature (T-T)Differs	15 - 32.5 °C	10 - 32 °C
Storage temperature (T-T)Known for one	-20 - 40 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Differs	20 - 70%	25 - 75%
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Weight & dimensions4 differ
WidthDiffers	405 mm	490 mm
DepthDiffers	453 mm	600 mm
HeightDiffers	250 mm	405 mm
WeightDiffers	18.7 kg	33.1 kg
Packaging data4 differ
Package widthDiffers	500 mm	799 mm
Package depthDiffers	333 mm	600 mm
Package heightDiffers	550 mm	1026 mm
Package weightDiffers	22.8 kg	51.6 kg
Other featuresidentical
PictBridgeKnown for one	No	Unknown — not stated by the source
Power LEDKnown for one	Yes	Unknown — not stated by the source
Stand-by LEDKnown for one	Yes	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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