Dot Matrix Printers and Images 1

[ietprofessional]

Here is something from a book I'm studying. Is this true? I thought dot matrix printer did not print images.

"Printers that are normally capable of printing graphic images include dot matrix, LaserJet, and Bubble Jet printers. The daisy wheel printer can only print letter-quality type and has no way to print graphic images."

 

[glister]

A dot matrix printer or impact matrix printer normally refers to a type of computer printer A computer printer is a computer peripheral device that produces hard copy (permanent human-readable text and/or graphics usually on paper) from data stored in a computer connected to it.

Monochrome, Color and Photo Printers
A monochrome printer can only produce an image consisting of one color, usually black. A monochrome printer may also be able to produce graduations of tone of that color, such as a grey-scale. with a print-head that runs back and forth on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper, much like a typewriter

Unlike a typewriter, letters are drawn out of numerous individual dots, and thus, varied fonts and arbitrary graphics can be produced.

Each dot is produced by a tiny metal rod or "pin", which uses the power of a tiny electromagnet

Generally the print head prints one line of text at a time. Most dot matrix printers have a single vertical line of dot-making equipment on their print heads; others have a few interleaved rows in order to improve dot density.

Certain models produce double-wide or bold characters by printing each vertical slice of a character twice. It produces higher resolutions by moving the print head more slowly. It produces graphics by printing dots, one horizontal character-high stripe at a time. Though most print in black and white, a few produce colour by making extra passes, shifting a multi-color striped ink ribbon between passes.



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