The controls on the M451dn are minimal but adequate. A two-way rocker button lets you navigate the two-line LED; the panel also has a warning light, along with the usual OK, cancel, and back buttons. Software installation is easy via either USB or ethernet, and the printer dialog procedure is well thought-out. Paper-handling features include a 250-sheet bottom main tray, an automatic duplexer, a 150-sheet output tray, and an optional bottom-mounted, 250-sheet auxiliary paper feeder. With a monthly duty cycle of 40,000 pages and a recommended actual monthly print volume of up to 2000 pages, the M451dn can handle a fair amount of printing.
In terms of access, the M451dn is extremely well designed. From the front you can fold out a small part of the panel to reveal the 50-sheet front multipurpose tray, or you can move a larger part of the panel to access the paper path and the slide-out toner tray. A pop-off panel on the right side of the printer makes it easy to upgrade the standard 128MB of memory to 384MB.
- Up to 21 ppm black and color
- Ethernet, WiFi 802.11b/g/n
- 250-sheet input tray, 50-sheet priority tray, 150-sheet output tray
- Windows, Mac, Linux
|Item Dimensions||15.9 x 19.1 x 12.7 in|
|Resolution||600 x 600|
|Other Features||21 pages_per_minute|
|RAM||Standard: 128 MB; Maximum 384 MB|
|Connectivity||built-in WiFi 802.11 b/g/n; Ethernet; WiFi 802.11 b/g/n);|
|Model||LaserJet Pro 400|
|What’s in the Box||A: HP LaserJet Pro 400 color M451dn printer; Four preinstalled introductory HP LaserJet toner cartri|
|Color||Black & White|