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Laser printing traces its history to efforts by [[Gary Starkweather]] at [[Xerox]] in 1969, which resulted in a commercial system called the Xerox 9700. [[IBM]] followed this with the [[IBM 3800]] system in 1976. Both machines were large, room-filling devices handling the combined output of many users.<ref name=e>Benji Edwards: ''[http://www.macworld.com/article/144880/2009/12/five_important_printers.html Apple's Five Most Important Printers.]'' macworld.com, December 10, 2009.</ref> During the mid-1970s, [[Canon (company)|Canon]] started working on similar machines, and partnered with [[Hewlett-Packard]] to produce 1980's HP 2680, which filled only part of a room.<ref name=j>Jim Hall, [http://www.hparchive.com/seminar_notes/HP_LaserJet_The%20Early%20History_by_Jim_Hall_110512.pdf "HP LaserJet – The Early History"]</ref> Other copier companies also started development of similar systems.
HP introduced their first desktop model with a Ricoh engine for $12,800 in 1983. Sales of the non-networked product were unsurprisingly poor.<ref name=j/> In 1983 [[Canon (company)|Canon]] introduced the LBP-CX, a desktop laser printer engine using a [[laser diode]] and featuring an output resolution of 300 dpi.<ref>{{cite web|url=http://www.fixyourownprinter.com/reference/pcr/engine/1311 |title=Canon LBP-CX Engine |publisher=fixyourownprinter.com |date= |accessdate=2009-09-23}}</ref> In 1984, HP released the first commercially available system based on the LBP-CX, the [[HP LaserJet]].<ref name=e/>
===Lo sviluppo in casa Apple===
Steve Jobs had seen the LPB-CX while negotiating for supplies of 3.5" floppy disk drives for the upcoming [[Apple Macintosh]] computer. Meanwhile, [[John Warnock]] had left Xerox to found [[Adobe Systems]] in order to commercialize [[PostScript]] in a laser printer they intended to market. Jobs was aware of Warnock's efforts, and on his return to California he started working on convincing Warnock to allow Apple to license PostScript for a new printer that Apple would sell. Negotiations between Apple and Adobe over the use of Postscript began in 1983 and an agreement was reached in December 1983, one month before Macintosh was announced.<ref name="pfiff-2003" /> Jobs eventually arranged for Apple to buy $2.5 million in Adobe stock.
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While competing printers and their associated control languages offered some of the capabilities of PostScript, they were limited in their ability to reproduce free-form layouts (as a desktop publishing application might produce), use [[Computer_font#Outline_fonts|outline fonts]], or offer the level of detail and control over the page layout. HP's own LaserJet was driven by a simple [[page description language]] running on the host computer, known as [[Printer Command Language]], or PCL. The version for the LaserJet, PCL4, was adapted from earlier [[inkjet printer]]s with the addition of downloadable bitmapped fonts.<ref name=j/> It lacked the power and flexibility of PostScript until several upgrades provided some level of parity.<ref>[http://www.csgnetwork.com/hppclhist.html "HP's History Of Printer Command Language (PCL)"], HP</ref> It was some time before similar products became available on other platforms, by which time the Mac had ridden the desktop publishing market to success.
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===Hardware===
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The LaserWriter was also the first peripheral to use the [[LocalTalk]] connector and Apple’s unified round AppleTalk Connector Family, which allowed any variety of mechanical networking systems to be plugged into the ports on the computers or printers. A common solution was the 3rd party [[PhoneNet]] which used conventional telephone cables for networking.
==Modelli==
{{See also|List of Apple printers#Laser printer series}}
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* The LaserWriter IIg<ref>http://support.apple.com/kb/SP478</ref> had the capabilities of the IIf, and was also the first LaserWriter with a built-in Ethernet network interface.
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{{reflist}}
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