parts HP Started
naming there printer’s in a logical way. The HP Laserjet or HP Laserjet I
series based on the Canon CX print engine. I believe there is one in the
Smithsonian (not in use though). Moving forward with the next model was
the
HP Started
naming there printer’s in a logical way. The HP Laserjet or HP Laserjet I
series based on the Canon CX print engine. I believe there is one in the
Smithsonian (not in use though). Moving forward with the next model was
the Laserjet II series,based on the
Canon SX print engine. This series was also available with two input cassettes.
The was the Laserjet IID, based on the Canon TX print engine. The (D) was now
the identifier for the duplex (double-sided) printing feature or option in the
model name. Next in the series was the Laserjet IIID, based on the same canon
TX print engine but had now incorporated HP’s
Resolution Enhancement Technology or RET. In a nutshell taking a 300x300
d.p.i. (dots per inch) printer and giving it 600x600 d.p.i. quality output.
Basically just splitting the dot with software (firmware) on the formatter.
Still only a true 300 d.p.i. printer. This RET technology is still being used
today with true 600 d.p.i. printer’s producing 1200 d.p.i. quality output. In
keeping with using the Roman numeral numbering there was the Laserjet IIP and
IIIP, based on the Canon LX print engine. The (P) in the model was used to
designate the printer as a personal printer. Next in line was the the Laserjet
IIISI based on the canon NX print engine. The (S) was used to designate that a
paper stacker was resident in the printer.
As printer
models evolved and different print engines were being used HP started using
plain numbering instead of the Roman numerals. In keeping with the alpha
sequence the Laserjet 4 series was next. The Laserjet 4M was introduced for use
with the Macintosh operating systems. Incorporated into the printer was a
Postscript module and possibly some additional memory as well to support the
more complex printer language. The (M) was now used to designate for use with
Mac’s or Postscript printing. Another model in the 4 series was the 4L, the (L)
was used as the designation for light duty ( only 1 paper tray). The series
continued moving up to number 5. The Laserjet 5N, where (N) was now used to
show a network option was installed. The single digit model numbers ended with
the 6 series.
HP then moved
to a four digit model numbering system. This would enable the same product or
model to be expanded within the series, such as the Laserjet 4000 series. The
4000T model incorporated two trays . The
(T) would now be used to show that two or more paper trays(cassettes) were
present. Models would use the same print engine, but with some added features,
such as a faster processor or different firmware. They were able to increase
the pages per minute.
HP also
introduced a wireless printing feature. This would require a wireless network
on the host or computer as well. It seamed to be a short lived option. The (W)
was used for this wireless feature. A stapler/stacker option was also
introduced, notated by (SL). For example: a 4250 DTNSL would have a
duplexer,network capabilities and a stapler/stacker device as well. The latest
printer models are now using the (X) for the combination of duplexing, network
capabilities along with additional input and output options. For the most part
HP has continued to use a lot of there option notations.
Alpha Description
d Duplex
dn Duplex & Network
dt Duplex & Extra Tray
f Fax
h Hard disk (drive)
i Imaging/Card slots
m Mailbox
n Network
nw Wireless Network
ps Postscript
s Stacker
sk Stapler & Stacker
t Extra Tray
tn Extra Tray & Networking
wf Wi-Fi
x Duplex - Extra Tray & Network (formerly dtn)
xh Duplex - Extra Tray, Network & Hard Disk
xm Duplex - Extra Tray, Network & Mailbox
xs Duplex - Extra Tray, Network & Stacker
xsk Duplex - Extra Tray, Network & Stapler Stacker
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