Lexmark T642 Service Manual - Page 21

4061-xx0 1. General information The Lexmark™ T64x laser printers are letter quality page printers designed to attach to IBM-compatible personal computers and to most computer networks. The Lexmark T64x laser printers are available in the following models: Model name Lexmark T640 Lexmark T640n Lexmark T642 Lexmark T642n Lexmark T644 Lexmark T644n Configuration Non-network Network Non-network Network Non-network Network Machine type 4061-000 4061-010 4061-200 4061-210 4061-400 4060-410 Maintenance approach The diagnostic information in this manual leads you to the correct field replaceable unit (FRU) or part. Use the service error codes, user status messages, user error messages, service checks, and diagnostic aids to determine the printer problem and repair the failure. After you complete the repair, perform tests as needed to verify the repair. See "Start" on page 2-1. Options The following options are available. Some options are not available in every country. Contact your point of purchase for options available in your country. • Memory options of 128MB, 256MB, and 512 SDRAM • Flash memory options of 32MB and 64MB • Hard disk-20GB+ with adapter • Integrated network options - Token-ring - Ethernet - External serial adapter - ThinPrint - IPDS card assembly and SCS/TNe - PRESCRIBE card assembly - Bar code card assembly - Parallel interface card - MarkNet™ Print Servers - Lexmark PrintCryption™ card - Forms card (single-byte and Simplified Chinese) • Media handling operations - 250- and 500-sheet paper trays of A4, letter, A5, B5, Executive, folio, statement, and legal size - 250-sheet universally adjustable tray - 250- and 500-sheet paper drawers - 400-sheet universally adjustable tray - 2000-sheet high-capacity feeder - Envelope feeder General information 1-1