HP LaserJet Pro 400 color Printer M451nw
Quickly and easily produce professional-quality color documents. Closely integrated with your office or wireless home network.   HP to help you save paper  and energy, with the HP Cloud Print anytime, anywhere to complete the print job. 
Professional standards of speed and color
Save time while increasing print volume, print speed of up to 20 ppm A4 and 21 ppm letter -.
With HP ImageREt 3600 and HP original LaserJet toner cartridges, get more imaginative text and smoother color.
Tips and templates to use HP's interior can be produced in various sizes of media on the color promotional materials.
Economic printing. Comparable to the HP LaserJet monochrome laser printer a single-page black-and-white document costs. 
Manageability, productivity and mobility
HP Web Jetadmin peripheral management software, to actively manage office printing.
Use built-in wireless connectivity, can easily locate the printer in the office at any time.   using the built-in Ethernet to share printing resources.
Using HP's cloud-print "technology anywhere, anytime to complete the print job. 
Simple to use and conserve resources
HP auto-switching technology to save energy.  "0" seconds preheating technology can greatly reduce energy consumption. 
Immediately begin using the HP Smart Setup.  using the HP automatic wireless connection to automatically configure the network connection.  
HP original cartridge is easy to obtain consistent printing results, HP SureSupply easily re-order. 
Enjoy free, easy recycling experience - an environmentally friendly way of recycling toner cartridges through the HP Planet Partners program. 
 Wireless performance depends on the distance between the physical environment and access points may be limited during the use of a VPN connection.  only the HP LaserJet Pro 400 the Colour M451nw color laser MFP with built-in wireless capabilities.  only the HP LaserJet Pro 400 M451dn laser MFP with automatic duplex printing function.  need to connect the printer via the Internet. This feature can be used to support Internet and e-mail device. Print time may vary. To understand the supporting documentation and a list of image types, see http://www.hp.com/go/eprintcenter.  compared with the HP LaserJet Pro P1566 / P1606dn printer. Assume that the customer's print job, at least 30% for color pages, print content and color ISO / IEC 19 798 test kit (http://www.iso.org/jtc1/sc28), and overall average job length of three. The printed volume published by the ISO / IEC test standards. The actual printed volume and cost of the printed image, print the color pages and other factors.  with the default settings compared to energy savings based on internal HP automatic open on / off settings. Based on the minimum energy savings of 45 minutes of sleep latency. Based on the maximum energy consumption savings of one minute of sleep latency. Actual results may differ.  compared with the traditional hot-melt technology.  HP Smart install only for Windows.  program features and availability may vary with the country / region. For more information, visit: http://www.hp.com/learn/suresupply.  Program availability is not the same. HP Planet Partners program is now helping more than 50 countries and regions in the world, HP HP cartridge recycling and reuse. For more information, or require the return envelope and collection boxes, please visit at http://www.hp.com/recycle.
Black and white print speed:
Normal: up to 33 / min
(Using the ISO / IEC 24 734 measure, the system will no longer be considered the first group of test documents. For more information, please visit http://www.hp.com/go/printerclaims the exact speed will vary based on system configuration, software application, driver and document complexity of different different.)
First page out (ready)
Black and white: only 8 seconds
Print quality (black, best quality):
1200 x 1200 dpi resolution
Print load cycle (monthly, A4)
Up to 50,000 pages
(Print load is the maximum monthly imaging output pages, this value can be used to contrast the durability of this product with other HP LaserJet or HP color laser printer device, and enables appropriate deployment of printers and MFPs to satisfy the individual or team connectivity requirements.)
Recommended monthly print volume:
Recommended monthly print volume of instructions:
To ensure optimum equipment performance, HP recommends: printed pages per month should be maintained at a certain number range, the number should be based on the extended warranty service life of equipment and supplies replacement intervals and other factors to determine.
HP PCL 5e, HP PCL 6, HP Postscript Level 3 emulation, direct PDF (v 1.7) printing
3.5 in. (8.89 cm) touch screen control panel, control panel displayed on the NON (color graphics display)
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Mobile printing capabilities
HP cloud print, Apple an AirPrint ? business applications
A high-speed USB 2.0 ports
A host USB port
An Ethernet 10/100/1000 Base-TX network
A direct USB port
Standard (built-in Ethernet card)
Minimum System Requirements
Microsoft ? Windows ? 7 (32/64), Windows Vista ? (32/64): 1 GHz 32-bit (x86) or 64 (x64) processor, 1 GB of RAM (32-bit) or 2 GB RAM (64-bit) 400 MB available hard disk space, either CD-ROM/DVD-ROM or the Internet, USB or network port; Windows ? XP32 SP2 (32 bit): Pentium ? 233 MHz processor, 512 MB of RAM, 400 MB hard disk space, either CD-ROM/DVD-ROM or the Internet, USB or network port;
Mac OS X v10.5, v10.6 Snow, v10.7; PowerPC G4, G5, or Intel ? Core ? processor; 500MB hard disk drive; either CD-ROM/DVD-ROM or the Internet; USB or network
Compatible operating systems:
Support full-featured software installation in the following systems: Microsoft ? Windows ? 7 (32-bit and 64-bit), Windows Vista ? (32-bit and 64-bit), Windows ? XP SP2 or later (32)
Support only install the driver in the following system: Microsoft ? Windows ? Server 2008 (32-bit and 64-bit), Windows ? Server 2003 SP3 or later versions (32)
Mac OS X v 10.5, v 10.6, v 10.7
Linpus the Linux: 9.4, 9.5
Red Hat Enterprise Linux: 5.0,6.0
Of Fedora: 14,15
Debian: 5.0,6.0 and HPUX11i,