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A+ Study Guide: Printers

The following online study guide is designed to help you with your Comptia A+ test prep. You can discuss any questions or comments that you may have, either on these study guides or on the Comptia A+ test on our community forum.

Dot Matrix Printer (Cont...)
Speed

The speed of a Dot Matrix Printer can be measured in characters per second (CPS no change). The dot matrix printer's can be differentiated on the basis of their speed which usually varies between fifty to about five hundred characters per second (CPS).

Quality

The image quality of a dot matrix printer depends on the spacing of the pins in the Print Head. For example, early dot-matrix printers used only 9 pins. It is one single picture and not multiple pictures. This spacing resulted in an output that looked “fuzzy” or have “draft quality” because the dots were spaced at a distance from each other. For better quality more pins had to be put closer together on the print head. Further, these printers are noisy when compared to the others.

However, there is one redeeming point. Dot matrix printers have the ability to print carbon copies of the original document. So, when it comes to printing multiple copies of the same document simultaneously then dot matrix printers' scores higher than any other printer which are using technology other than that used by these printers.

 

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