19 terms found. Page 1 of 2
1. Daisy Wheel - A type of impact printer where the characters are individually formed on a removable spoked disk or wheel thus capable of letter quality printing. Mainly used in the more expensive Typewriters before the introduction of WYSIWYG word processing the desktop publishing.
2. Data - In its purist form, data is simply information. That data or information can then be queried, manipulated and reported to extract concepts and details, or further processed to produce a new object. In printing terms, data is the electronics representation of the printed page which is then turned into a physical printed page.
3. Data Buffer - Temporary memory where data, or information, from the computer is stored prior and/or during action. Printers have a data buffer to store the page information during the printing process.
4. Default - Basic information or settings that will be used in the absence of further instructions. In this case, a setting that suits most printing applications and so will be used by the printer/software unless told otherwise.
5. Descender - The section of lowercase letters like g, j and p, that descends below the baseline of the font. Sometimes the uppercase letter J and Q also descend below the baseline.
6. Desktop Publishing - The process of formatting pages of text and graphics with a computer rather than the manual process involving physically cutting and pasting printouts and photos onto the final sheet.
7. Diffusion Dithering - A process for printing arguably more natural images by randomly distributing gray scale information instead of using a fixed pattern.
8. Dingbats - Special typefaces or fonts that consist of symbols such as arrows and icons used for graphic rather than textual work.
9. Dithering - A process of simulation many colors with just a few. Dots of primary color are printed in various patterns to give the illusion of large color spectrum printing. Also know as half-toning.
10. DL - The international envelope size also known as ISO-DL, measuring 110 x 220 mm or 4.3 X 8.6 inches.
11. DOS - Acronym for Disk Operating System.
12. Dot Matrix Printers - Early printers produced for the mass market and preceding consumer inkjet or laser printers. Dot matrix printers use a set of pins are fired against an inked ribbon resulting in characters forming on the underlying paper. Although fast, dot matrix printers are of low print quality, with the number of pins determining the quality from 9, very low, to 48 almost letter quality. These printers are generally fed from a continuous roll of paper and still lend themselves to report printing and long banners.
13. Dots per inch - DPI - A value for the measurement of the resolution of a printed or scanned images or text. A higher DPI will generally mean higher resolution and therefor higher quality although many other factor also come into play. A higher DPI also means larger files and so this also needs to be taken into consideration. Ranges include 72 dpi for most monitors, 300 dpi for inkjet and laser printers, to 1200 to 2450 dpi for most PostScript imagesetters.
14. Double-Sided or Duplex Printing - Printing on both sides of a single page.
15. Drawdown - A procedure for ink comparison testing to compare a third party ink to an OEM ink by "drawing down" ink samples side by side on standard paper and visually comparing them.
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