- Fast, versatile and manageable.
- Standard paper trays may not have enough capacity.
The LaserJet 9000dn is at the upper end of the 9000 family of A3-capable mono laser printers, featuring duplex printing and network connectivity as standard. Its speedy 50 page per minute (ppm) print engine has a resolution of 600 dots per inch (dpi), making it suitable for large volumes of text and medium-quality graphics.
This huge printer -- it measures 75.6cm by 60.9cm by 60.9cm -- can easily cope with hundreds of peoples' printing requirements, although you may need to add extra paper trays for really large volumes. As with a few other HP printers we've reviewed recently, the LaserJet 9000dn features 'smart' consumables that can inform you when they're about to run out, allowing you to order replacements in good time. It supports PCL6 and PCL5e, and well as providing PostScript Level 3 emulation. The standard 64MB of RAM seems meagre given this printer's likely workload, but memory can be expanded to 384MB if necessary.
Two paper trays and a multipurpose tray are fitted as standard, and any of these can take paper sizes from A5 to A3. The two paper trays take 500 sheets each, while the multipurpose tray holds 100 sheets. The capacity of these trays is relatively small considering the high speed of the print engine -- at busy times both trays could empty in less than an hour. Additional paper trays are available to increase the paper capacity to a maximum of 3,100 sheets.
You can adjust the printer's registration, so that your printouts are in the centre of the page, and the front and back line up. This is done on a per-paper tray basis, so if you're producing a finished document using different paper types, make sure that all the trays have been adjusted.
The LaserJet 9000dn's job retention feature allows you to send jobs to the printer and have them stored for later output. You can also send private jobs to the printer, which will only be printed out once you've entered the correct PIN for that job into the front panel -- thus solving the problem of printing sensitive documents on a shared printer.
The LaserJet 9000dn's control panel features a four-line LCD panel with navigation buttons, from which you can set most of the printer's configuration options. The screen also provides some guidance in the event of a paper jam, and warns you which door you've left open. Many of these options are duplicated in the printer's browser-based interface.
As you'd expect for a printer of this size, a network connection is provided using HP's JetDirect Ethernet module. This, in addition to providing network connections for just about every type of client you're likely to have, also has an embedded Web server to allow easier management of the printer and its consumables. From the front page of the Web interface you can see the printer's status, as well as the paper and toner levels.
The LaserJet 9000dn features a Chai Virtual Machine, HP's own version of the Java Virtual Machine, which allows programs from HP and third parties to be run on the printer. This will allow extra functions to be added to the printer without the need to upgrade the hardware, and will be of most use where it is being used for a specialised application.
Given the speed of the LaserJet 9000dn's print engine and controller, it's surprising that HP hasn't equipped it with more memory and paper capacity as standard. For a more balanced configuration, you'd be advised to add these options. That aside, this is up to HP's usual standard for business printers -- manageable, robust and versatile.