- Prints up to 21 pages per minute in both black and color.
- Print resolution up to 600 dpi.
- Includes 50-sheet multipurpose tray and 250-sheet input tray.
- Conserve energy and save paper while using the automatic two-sided printing feature.
- Print from virtually anywhere with HP ePrint.
- HP Auto-Off Technology turns your printer off when you don’t need it, which also saves energy.
- Features 2-line, 16-character LCD-backlit LCD display.
- Recommended monthly volume: 750 to 2,000.
- 40,000-page monthly duty cycle.
- ENERGY STAR® qualified.
|maximum color print speed||21 ppm|
|maximum black and white print speed||21 ppm|
|compatible toner/ink||HP 305A Series or 305X Black toner|
|maximum optimized color print resolution||600 dpi|
|maximum black and white print resolution||600 dpi|
|primary paper tray capacity||250 sheets|
|total paper tray capacity||250 sheets|
|maximum sheet size||8 1/2" x 14"|
|auto double-sided printing||yes|
|connector type||USB; Ethernet; Wi-Fi (802.11b/g/n)|
|maximum monthly volume||2000 sheets|
|operating system compatibility||Windows 7; Windows Vista; Windows XP; Mac OS X 10.5; 10.6|
|warranty length||1-year limited|
|ink/toner cartridge(s) included||starter-capacity cartridge(s)|
|postconsumer recycled content||0%|
|total recycled content||0%|
|model||Pro 400 M451dn|
|dimensions||12.7"H x 15.9"W x 19.1"D|
|mobile printing||app based|
|number of paper trays||3|
Ask your questions. Share your answers.
HP 305A Black LaserJet Toner Cartridge (CE410A)
HP 305X Black LaserJet Toner Cartridge (CE410X)
HP 305A Cyan LaserJet Toner Cartridge (CE411A)
HP 305A Yellow LaserJet Toner Cartridge (CE412A)
HP 305A Magenta LaserJet Toner Cartridge (CE413A)
If HP doesn't make a profit, then we won't have high quality printers. I simply enjoy the luxury of getting high quality printing and pay the price. I'm perfectly happy.
Up to 21 ppm
Up to 21 ppm
2 sided printing
- Professional-grade speed and colorBoost productivity and save time with print speeds up to 21 ppm letter.
- Manageability, productivity, and mobilityConserve resources and save paper, using automatic two-sided printing.
- Easy-to-use and resource-conservingReduce energy use with Auto-On/Auto-Off Technology.8 Also save with Instant-on Technology.12
This product has
first page out
Color: As fast as 17 sec
Black and White: As fast as 17 sec
2 sided printing
Allows you to print on both sides of the page, cutting your paper use by up to 50%.
Add this device to your office Ethernet network to share with your workgroup.
Up to 300 sheets
Print from your smartphone, tablet, and Internetconnected PC from virtually anywhere.
Disclaimer Requires an Internet connection to HP web-enabled printer and HP ePrint account registration (for a list of eligible printers, supported document and image types, and other HP ePrint details, see www.hpconnected.com). Mobile devices require Internet connection and email capability. May require wireless access point. Separately purchased data plans or usage fees may apply. Print times and connection speeds may vary. Some HP LaserJet printers may require firmware upgrades.
auto on/off technology
Save energy and money with HP Auto-On/Auto-Off technology—intelligence that can turn your printer or MFP on when you need it and off when you don’t.
HP Smart Install
Get started fast with HP Smart Install—no CD needed
Disclaimer HP Smart Install works with Microsoft Windows only.
ENERGY STAR® qualified; EPEAT® Silver
Print speed black (normal, letter)
Up to 21 ppm
Print speed color (normal, letter)
Up to 21 ppm
Print speed footnote
Measured using ISO/IEC 24734, excludes first set of test documents. For more information see http://www.hp.com/go/printerclaims. Exact speed varies depending on the system configuration, software application, driver, and document complexity.
Recommended monthly page volume
750 to 2000
Recommended monthly page volume note
HP recommends that the number of printed pages per month be within the stated range for optimum device performance, based on factors including supplies replacement intervals and device life over an extended warranty period.
HP PCL 6, HP PCL 5c, HP postscript level 3 emulation
Paper handling input, standard
50-sheet multipurpose tray, 250-sheet input tray 2
Paper handling output, standard
150-sheet output bin
Media sizes supported
Tray 1: Letter, legal, executive, 8.5 x 13 in, 3 x 5 in, 4 x 6 in, 5 x 8 in, envelopes (No 10, Monarch); Tray 2, optional Tray 3: Letter, legal, executive, 8.5 x 13 in, 4 x 6 in, 5 x 8 in, envelopes (No 10, Monarch); Automatic duplexer: Letter, legal, executive, 8.5 x 13 in
425 watts (Active), 15.2 watts (Ready), 4.0 watts (Sleep), 0.5 watts (Off)
Power consumption footnote
Power requirements are based on the country/region where the printer is sold. Do not convert operating voltages. This will damage the printer and void the product warranty.
Operating temperature range
59 to 86ºF
Operating humidity range
20 to 70% RH (non-condensing)
What's in the box
Printer; Four preinstalled introductory HP LaserJet toner cartridges (yield ~1400 pages); In-box documentation (Hardware installation guide); Software drivers and documentation on CD-ROMs; Power cord; Built-in Automatic duplexer for two-sided printing
One-year limited warranty, return to HP or authorized service provider
Thank you, you will now be redirected to comparisons.
Just a moment while we prepare the page
Check In-Store Availability