Output Devices, ContinuedDaisy wheelDaisy wheel printers are very similar to typewriters. The flat, circularprintersprinting element contains all text and numeric characters. The element spinsrapidly, pausing only to allow the printing hammer time to strike thecharacter against the ribbon or paper. Daisy wheel printers are letter qualityprinters but they tend to be slow.Figure 3-10 shows a daisy wheel printer printing element.Figure 3-10. —A daisywheel printingelement.NonimpactNonimpact printers do not make contact with paper or ribbon duringprintersprinting. They use several techniques for printing, such as xerographic,electrostatic, electrosensitive, electrothermal, ink jet, and laser. Nonimpactprinters are the fastest of printers with speeds approximating 20,000 lines ofprint per minute. They are also much quieter than impact printers. Some ofthe disadvantages are that they produce one copy at a time, sometimesrequire specially treated paper stock, and the printed output may blur.Continued on next page3-21
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
