Glossary254GlossaryMHModified Huffman (MH) is a compression method for decreasing the amount ofdata that needs to be transmitted between the fax machines to transfer theimage recommended by ITU-T T.4. MH is a codebook-based run-lengthencoding scheme optimized to efficiently compress white space. As most faxesconsist mostly of white space, this minimizes the transmission time of mostfaxes.MMRModified Modified READ (MMR) is a compression method recommended by ITU-T T.6.ModemA device that modulates a carrier signal to encode digital information, and alsodemodulates such a carrier signal to decode transmitted information.MRModified Read (MR) is a compression method recommended by ITU-T T.4. MRencodes the first scanned line using MH. The next line is compared to the first,the differences determined, and then the differences are encoded andtransmitted.NetWareA network operating system developed by Novell, Inc. It initially usedcooperative multitasking to run various services on a PC, and the networkprotocols were based on the archetypal Xerox XNS stack. Today NetWaresupports TCP/IP as well as IPX/SPX.OPCOrganic Photo Conductor (OPC) is a mechanism that makes a virtual image forprint using a laser beam emitted from a laser printer, and it is usually green orrust colored and has a cylinder shape.An imaging unit containing a drum slowly wears the drum surface by its usagein the printer, and it should be replaced appropriately since it gets worn fromcontact with the cartridge development brush, cleaning mechanism, and paper.OriginalsThe first example of something, such as a document, photograph or text, etc,which is copied, reproduced or translated to produce others, but which is notitself copied or derived from something else.
