Glossary293GlossaryIPMThe Images Per Minute (IPM) is a way of measuring the speed of a printer. An IPMrate indicates the number of single-sided sheets a printer can complete withinone minute.IPPThe Internet Printing Protocol (IPP) defines a standard protocol for printing aswell as managing print jobs, media size, resolution, and so forth. IPP can be usedlocally or over the Internet to hundreds of printers, and also supports accesscontrol, authentication, and encryption, making it a much more capable andsecure printing solution than older ones.IPX/SPXIPX/SPX stands for Internet Packet Exchange/Sequenced Packet Exchange. It is anetworking protocol used by the Novell NetWare operating systems. IPX andSPX both provide connection services similar to TCP/IP, with the IPX protocolhaving similarities to IP, and SPX having similarities to TCP. IPX/SPX wasprimarily designed for local area networks (LANs), and is a very efficient protocolfor this purpose (typically its performance exceeds that of TCP/IP on a LAN).ISOThe International Organization for Standardization (ISO) is an internationalstandard-setting body composed of representatives from national standardsbodies. It produces world-wide industrial and commercial standards.ITU-TThe International Telecommunication Union is an international organizationestablished to standardize and regulate international radio andtelecommunications. Its main tasks include standardization, allocation of theradio spectrum, and organizing interconnection arrangements betweendifferent countries to allow international phone calls. A -T out of ITU-T indicatestelecommunication.ITU-T No. 1 chartStandardized test chart published by ITU-T for document facsimiletransmissions.JBIGJoint Bi-level Image Experts Group (JBIG) is an image compression standard withno loss of accuracy or quality, which was designed for compression of binaryimages, particularly for faxes, but can also be used on other images.JPEGJoint Photographic Experts Group (JPEG) is a most commonly used standardmethod of lossy compression for photographic images. It is the format used forstoring and transmitting photographs on the World Wide Web.
