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Chapter Overview Printer basics Printer ports Dot­matrix printers Ink­jet printers Laser printers 1 Printer Basics Printer resolution Duty cycle Speed Printer memory Graphics and Cost of paper printer­language support Cost of consumables Paper capacity 2 Common Printer Terms American Standard Code for Information Interchange (ASCII) Font Line print terminal (LPT) port Laser Jet Printer Control Language (PCL) PostScript Resolution enhancement Printing orientation Duplexing 3 Printer Ports Ports can be serial, Small Computer System Interface (SCSI), or parallel, although parallel is the most common. The parallel port consists of a 25­pin male plug. Parallel ports have some disadvantages. The data transfer rate is only 150 KB per second. The parallel port uses system resources while printing. Parallel cables have a maximum effective length of 10 feet. 4 Dot­Matrix Printers 5 ... - tailieumienphi.vn
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