Computer printers

Computer printers
Thiemo Schuff · CC BY-SA 3.0 de · source
Name	Printers
Caption	Typical office printer
Invented	1930s–1960s
Inventor	Array of inventors and companies
Manufacturer	Hewlett-Packard, Canon, Epson, Xerox, Brother, Ricoh
Type	Output device

Computer printers

Computer printers produce permanent representations of digital Alan Turing-era data for users of ENIAC, IBM systems, and personal computers developed by Steve Jobs's Apple Inc. and Bill Gates's Microsoft. Early work by inventors at Xerox PARC, researchers at Hewlett-Packard, and manufacturers such as Canon Inc. and Epson enabled mass-market adoption alongside networks managed by Novell and Cisco Systems. Today printers are sold by conglomerates including Ricoh Company, Ltd., Brother Industries, and Samsung Electronics to sectors from NASA and United States Postal Service to small businesses and consumers.

History

Printers evolved from mechanical typesetters used by Johannes Gutenberg and electro-mechanical devices in the era of UNIVAC and IBM 1401 to modern laser and inkjet designs commercialized by Hewlett-Packard and Canon Inc.. The rise of personal computing tied progress to platforms like the Apple II, IBM PC, and operating systems such as Microsoft Windows and macOS, while networking developments by TCP/IP pioneers and companies like Novell reshaped deployment. Standards work by organizations like the Institute of Electrical and Electronics Engineers and the International Organization for Standardization influenced page description languages including PostScript from Adobe Systems and PDF adoption. Print-on-demand and desktop publishing revolutions were driven by collaborations among Aldus Corporation, Adobe Systems, and Apple Inc..

Types and Technologies

Consumable and mechanism types include laser printers pioneered by Xerox Corporation's discoveries, inkjet printers developed by Epson and Canon Inc., dot matrix impact devices from Epson and Okidata, and thermal printers used by Epson and Zebra Technologies. Specialty devices include dye-sublimation systems employed by Kodak and industrial wide-format plotters from HP Inc. and Roland DG. Emerging additive methods intersect with 3D Systems and Stratasys in three-dimensional manufacturing arenas. Proprietary page description languages such as PostScript and technologies like LED printing coexist with standards like PCL developed by Hewlett-Packard.

Components and Operation

Major modules include print engines designed by Xerox PARC alumni, imaging drums and toner systems from Ricoh Company, Ltd., printheads engineered by Seiko Epson Corporation, power supplies certified under Underwriters Laboratories, and firmware often developed in-house or by embedded teams influenced by ARM Holdings architectures. Printers interpret languages like PostScript and generate raster output via raster image processors (RIPs) conceived in workstation labs at Adobe Systems and Sun Microsystems. Paper handling units trace lineage to bindery equipment firms and sheet-feeding mechanisms standardized by testing labs associated with ISO committees.

Performance and Quality Metrics

Benchmarks reference pages per minute originally promoted by Hewlett-Packard and throughput tests used in procurement by agencies such as General Services Administration. Resolution metrics, measured in dots per inch, are advertised alongside color models (CMYK) rooted in research at institutions like Kodak and Xerox. Reliability statistics and mean time between failures inform purchasing by corporations like GE and Siemens. Color accuracy comparisons use profiles standardized by International Color Consortium and are validated with spectrophotometers from manufacturers like X-Rite.

Connectivity and Interfaces

Printers connect via legacy ports standardized by IEEE committees and modern networks managed with protocols originating from ARPANET research. Typical interfaces include USB standardized by the USB Implementers Forum, Ethernet using chips from Broadcom, Wi‑Fi aligned with Wi-Fi Alliance, and cloud printing services offered by Google and Apple Inc.'s ecosystems. Enterprise features integrate with directory services such as Microsoft Active Directory and print servers from Novell or CUPS implementations used in Linux distributions.

Maintenance and Consumables

Consumables—toner cartridges sold by HP Inc., ink cartridges by Canon Inc. and Epson, and thermal media from companies like 3M—drive total cost of ownership calculations used by procurement teams at Amazon and Walmart. Maintenance includes replacement of belts and drums produced by suppliers contracted to Brother Industries and periodic firmware updates overseen by vendor support organizations. Counterfeiting and remanufacturing have legal implications involving intellectual property offices and litigation involving firms such as Lexmark International.

Environmental and Health Impacts

Lifecycle assessments by organizations including the Environmental Protection Agency and the United Nations Environment Programme address e‑waste disposal, recycling programs run with partners like Dell Technologies and HP Inc., and remanufacturing initiatives advocated by NGOs. Air emissions research at universities including Harvard University and Stanford University examined nanoparticle and volatile organic compound generation from toner and ink. Regulatory frameworks influenced by agencies such as the European Commission and standards from the International Electrotechnical Commission guide energy consumption labeling and disposal practices.

Applications and Market Trends

Print demand patterns are analyzed by market researchers at firms like Gartner, IDC, and Forrester Research and influence offerings from legacy manufacturers like Xerox Corporation and newcomers pivoting to services such as managed print services provided by Ricoh and Konica Minolta. Sectors including healthcare facilities governed by Centers for Disease Control and Prevention protocols, legal firms using case management systems, and educational institutions deploying campus-wide printing integrate advanced secure printing solutions from cybersecurity vendors and identity providers such as Okta. Trends include consolidation, subscription pricing popularized by HP Inc.'s "instant ink" programs, and sustainability initiatives led by international alliances and standards bodies.

Category:Printing technology