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User:DavidB4/workspace (view source)
Revision as of 18:17, November 18, 2016
, 18:17, November 18, 2016→Dot Matrix
===bubblejet===
===bubblejet===
===Dot Matrix===
===Dot Matrix===
Dot Matrix printers are a kind of impact printer, which is not used nearly as much as it once was. However, they still have their uses since printing is inexpensive and they can produce multiple copies using thermal transfer or carbon paper. Unfortunately, these printers are very noisy, offer poor print quality, and use proprietary ink cartridges. When printing:
#The top edge of a continuous sheet of pin fed paper is aligned just above the print head
#The print head moves from side to side, rapidly extending and retracting pins where marks should appear on the paper.
#A ribbon runs between the paper and the print head, so the pins press this ribbon against the paper, leaving ink behind
#The ribbon loop continuously feeds from the ink cartage to the head and back again to maintain the availability of ink.
#When the print job is complete, extra paper is fed out, so that the product may be torn or cut off
===Thermal===
===Thermal===
Thermal printers do not use any ink or toner. Rater, they use direct-thermal paper, which turns black in response to heat. These printers are limited to black printing only, and the final product can be destroyed sunlight, hot surfaces, or friction. However, they are inexpensive and convenient for a number of purposes, including shopping receipt printing and label production.
Thermal printers do not use any ink or toner. Rater, they use direct-thermal paper, which turns black in response to heat. These printers are limited to black printing only, and the final product can be destroyed sunlight, hot surfaces, or friction. However, they are inexpensive and convenient for a number of purposes, including shopping receipt printing and label production.