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Xerox 914 photo copier. The Xerox 914 was the first successful commercial plain paper copier. Introduced in 1959 by the Haloid/Xerox company, it revolutionized the document-copying industry. The culmination of inventor Chester Carlson's work on the xerographic process, the 914 was fast and economical.
In an analog copier, either each page is scanned 20 times (a total of 400 scans), making one set at a time, or 20 separate output trays are used for the 20 sets. Low-end copiers also use digital technology, but tend to consist of a standard PC scanner coupled to an inkjet or low-end laser printer, which are far slower than their counterparts in ...
Toner is a powder mixture used in laser printers and photocopiers to form the text and images on paper, in general through a toner cartridge. Mostly granulated plastic, early mixtures added only carbon powder and iron oxide ; now there are mixtures that contain polypropylene , fumed silica , and various minerals for triboelectrification . [ 1 ]
Toner is fused onto paper with heat and pressure. The paper passes through rollers in the fuser assembly, where temperatures up to 427 °C (801 °F) and pressure are used to permanently bond the toner to the paper. One roller is usually a hollow tube (heat roller) and the other is a rubber-backed roller (pressure roller).
IBM Copier I. On April 21, 1970, IBM announced their first copier simply called the IBM Copier. Its IBM Machine type/Model is 6800–001. When the IBM Copier II was released, IBM renamed the IBM Copier to the IBM Copier I. [21] In terms of competition, while the Copier I was faster than the Xerox 914 (which ran at 7 copies per minute) [22] it was reported as competing with the desktop Xerox ...
The LaserJet 4 series had small printers in the range: the personal-use 4L and the small-business use 4P (and the Macintosh-compatible 4ML and 4MP). These printers both used the Canon PX engine, [7] which like the EX was new at the time of release. The 4L used the 300 DPI [8] PX engine, with the 4P using the upgraded 600 DPI [9] PX-II engine. [1]
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