IEEE 1284 definition of IEEE 1284 in the Free Online Encyclopedia.

IEEE 1284

An IEEE standard for an enhanced parallel interface (parallel port) for personal computers, superseding the Centronics interface. Introduced in 1994, IEEE 1284 can send addresses, allowing individual components in a multifunction device (printer, scanner, fax, etc.) to be addressed independently. Unlike the Centronics interface, the specifications of the cable are defined in IEEE 1284, providing a cable length up to 32 feet. A legacy interface today, IEEE 1284 has been superseded by USB and network connections. See Centronics interface, DOT4 and USB.

Five Modes of Operation
IEEE 1284 defines five modes, and the driver determines which to use based on the connected device. Compatibility mode enables data transfer with the earlier Centronics interface at 150 KB/sec.

Enhanced Capabilities Port (ECP) mode and Enhanced Parallel Port (EPP) mode provide bidirectional speeds up to 1.5 MB/sec. ECP was proposed by HP and Microsoft for printers, and EPP was proposed by Intel, Xircom and Zenith Data Systems for other peripherals.

Byte and Nibble modes provide an 8-bit and 4-bit channel respectively from the peripheral to the host. They are used to enhance the bidirectional capability of the Centronics standard.

IEEE 1284 Printer Cable

Using the same connectors as the Centronics interface, but with a higher quality cable, IEEE 1284 cables can be up to 32 feet long. The PC contains a 25-pin, female DB-25 socket, while the printer has a 36-pin, female Centronics socket.

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No references found	The 74LVXZ161284 IEEE 1284 translating transceiver with power-up protection is ideal for printers, scanners, copiers and other applications requiring a PC or workstation plug-in. Fairchild Boosts Support for High-speed IEEE 1284 Interface With ... by Business Wire Printer: magicolor 2200 DeskLaser Specifications: -- Up to 20 ppm monochrome, up to 5 ppm color -- 32 MB RAM/96 MB RAM maximum -- 1200 dpi resolution -- Up to 8 1/2" x 14" page size -- Ethernet (10/100BaseTX); IEEE 1284 parallel (ECP) -- 500-sheet, 150-sheet paper input -- Compatibility with Windows 95/98/Me/2000 and NT 4. MINOLTA-QMS Printer Named ``Editors' Choice'' by PC Magazine; ... by Business Wire The PagePro 4110W is equipped with an IEEE 1284 parallel interface and is optimized for the Windows environment, capitalizing on the printing capabilities already contained in Windows 95/98/Me/2000 and NT 4. The New MINOLTA-QMS PagePro 4110W Makes Printing Even More ... by Business Wire	IDS IDS/I IDSA IDSN IDSS IDU Idumaea Iduna and Summer Finding IDUR IDX idyl Idyll Idyr Baimekov Idyr Bakhmutov Idzhevan IE Ie-shima IEC IEC 559 IEC 61131 IEC 61883 Iecava IEE IEEE IEEE 1076 IEEE 1284 IEEE 1394 IEEE 488 IEEE 754 IEEE 802 IEEE 802.11 IEEE 802.2 IEEE 802.3 IEEE 802.3u IEEE 802.3z IEEE 802.4 IEEE 802.5 IEEE Computer Society IEEE Floating Point Standard IEEE Standard 1149.1 IEF IEN IEPG Ierei Ieremiia Mikhail Vishnevetskii IERI Ieronim Ivanovich Stebnitskii Ieronim Petrovich Uborevich Ieronim Stebnitskii Ieronim Uborevich Ierusalimskii, Nikolai	IEDR IEDRC IEDRO IEDRR IEDS IEDSS IEDT IEDTA IEDZ IEE IEE IEE IEE 802.3 IEEA IEEAC IEEAF IEEB IEEC IEECAS IEECB IEECI IEED IEEE IEEE IEEE IEEE IEEE 1003 IEEE 1003.1 IEEE 1076 IEEE 1284 IEEE 1284b IEEE 1394 IEEE 1394 IEEE 1394a IEEE 1394b IEEE 1934 IEEE 488 IEEE 696 IEEE 754 IEEE 802 IEEE 802.1 IEEE 802.11 IEEE 802.11 High Rate IEEE 802.11-2007 IEEE 802.11a-1999 IEEE 802.11b-1999 IEEE 802.11e-2005 IEEE 802.11g-2003 IEEE 802.11h-2003 IEEE 802.11i Task Group IEEE 802.11i-2004 IEEE 802.11k IEEE 802.11n IEEE 802.11p IEEE 802.11s

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The 74LVXZ161284 IEEE 1284 translating transceiver with power-up protection is ideal for printers, scanners, copiers and other applications requiring a PC or workstation plug-in.

Fairchild Boosts Support for High-speed IEEE 1284 Interface With ... by Business Wire

Printer: magicolor 2200 DeskLaser Specifications: -- Up to 20 ppm monochrome, up to 5 ppm color -- 32 MB RAM/96 MB RAM maximum -- 1200 dpi resolution -- Up to 8 1/2" x 14" page size -- Ethernet (10/100BaseTX); IEEE 1284 parallel (ECP) -- 500-sheet, 150-sheet paper input -- Compatibility with Windows 95/98/Me/2000 and NT 4.

MINOLTA-QMS Printer Named ``Editors' Choice'' by PC Magazine; ... by Business Wire

The PagePro 4110W is equipped with an IEEE 1284 parallel interface and is optimized for the Windows environment, capitalizing on the printing capabilities already contained in Windows 95/98/Me/2000 and NT 4.

The New MINOLTA-QMS PagePro 4110W Makes Printing Even More ... by Business Wire