HP LaserJet

The LaserJet 500 Plus (model 2686D) was the largest of the early LaserJet series.

LaserJet as a brand name identifies the line of dry electrophotographic (DEP) laser printers marketed by the American computer company Hewlett-Packard (HP). The HP LaserJet was the world's first desktop laser printer.[1] As of 2016, Canon supplies both mechanisms and cartridges for all HP's laser printers.[2]


Laser head from HP LaserJet 5L printer

HP LaserJet printers employ xerographic laser-marking engines sourced from the Japanese company Canon. Due to a very tight turnaround schedule on the first HP LaserJet, HP elected to use the controller already developed by Canon for the CX engine in the first HP LaserJet.[3]

The first HP LaserJet and the first Apple LaserWriter used the same print engine, the Canon CX engine.[4] HP chose to use their in-house developed Printer Command Language (PCL) as opposed to Apple, which adopted the PostScript language, as developed by Adobe Systems. The use of a less-ambitious and simpler Page description language allowed HP to deliver its LaserJet to the market about a year before Apple's CX based product, and for $1000 less.[3] The sharing of an identical Canon engine in two competing products continued with the HP LaserJet II/III and the Apple LaserWriter II, which both used the Canon LBP-SX print engine.

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