pure text print speed, we ran a 49-page text-only word document (with
about 5% coverage) through the printer at 600dpi.
Suffice to say that we were extremely
impressed by the performance of the HP LaserJet 2420dn in this test.
After a meager 5.5 second warmup time, the full document printed
in 1 minute and 41 seconds. If you do your math, that's 29.1 ppm including the warmup
Without the warmup
time, the HP 2420dn racks up almost 31ppm, actually exceeding HP's specs for the
printer. Very impressive. Looks like the HP LaserJet 2420 is set to tear through large documents with
Duplex printing dropped the speed down to a still-impressive
8.5ppm, while startup times remained the same.
The lower-yield HP
2420dn toner cartridge costs $125US and yields ~6000 pages at 5% coverage. Taken
at face value, this works out to about 2 cents US per page, while the larger
$205US cartridge prints 12,000 pages for a CPP (Cost Per Page) of 1.7 cents.
We've seen Canadian prices for the same toner cartridges at about $140 and $230
respectively, so CPP should be about 2.3 cents CAN for the smaller cartridge and
1.9 cents for the larger. These costs
are about average for business laser printer operations. HP's direct
pricing seems higher than many third-party retailers, so it should pay to shop
around for toner.
Final Thoughts on the HP LaserJet
Overall, we were very impressed with the HP
LaserJet 2420dn's capabilities as a medium-duty office printer. It's lightning fast print speed and miniscule warm-up
times are its best attribute, but print quality is
also excellent. As you'd expect with HP, the 2420dn is not particularly cheap,
but the operating costs are on par with other office laser printers once
you've got it running.
With a recommended 75,000 page per
month duty cycle, the HP LaserJet 2420dn is built to take the kind of jobs that medium/large
offices can throw at it. The printer's power consumption
is minimal when not printing, and since it takes less than 10 seconds
to go from sleep mode to first page printed, there's no real tradeoff
for this power economy.
LaserJet 2420dn offers a decent amount of expandability
with its one free EIO port and spare DIMM slot.
In our tests, network connectivity worked well, and the ability to create a customized
driver installation complete with pre-set printer options is a great
The built-in HP JetDirect print server
offers excellent functionality for larger offices, as most configuration tasks
can be done remotely over the network, and email alerts and status reports
simplify the job of caring for the printer. This feature, as much as the HP
LaserJet 2420dn's printing abilities, makes it suitable for larger or dispersed
On the down side, the first LaserJet 2420dn we tested was DOA, which
didn't boost our confidence in the model or HP's quality control standards.
Anything can get broken in shipping though, and HP tech support were quick, polite and efficient.
The replacement model worked just fine.
We were also less than thrilled
about the mottling that was present in some of our darker image and
shading tests. This was much less pronounced at the 600dpi setting than at 1200dpi, and paper quality also seemed to
contribute to or reduce this effect. If you need to produce crisp photographic images in dark
shades, the HP LaserJet 2420dn does not appear to be an ideal candidate. For any
other type of printing or graphic work, it's more than suitable.
The Hewlett-Packard LaserJet 2420dn
is a fast printer with some impressive networking features.
It doesn't come cheap, but you wouldn't expect it to given its feature set
and HP's reputation for business-quality printers.
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