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Home > Less Popular Printers

Less Popular Printers

 

Dot-matrix printer

Dot-matrix printer is an impact printer that produces text and graphics when tiny wire pins on the print head strike the ink ribbon.  The print head runs back and forth on the paper like a typewriter.  When the ink ribbon presses on the paper, it creates dots that form text and images.  Higher number of pins means that the printer prints more dots per character, thus resulting in higher print quality. 

Dot-matrix printers were very popular and the most common type of printer for personal computer in 70ís to 80ís.  However, their use was gradually replaced by inkjet printers in 90ís.  As of today, dot matrix printers are only used in some point-of-sales terminals, or businesses where printing of carbon copy multi-part forms or data logging are needed.

 

Advantages of dot matrix printer:

1)     Can print on multi-part forms or carbon copies

2)     Low printing cost per page

3)     Can be used on continuous form paper, useful for data logging

4)     Reliable, durable

 

Disadvantages of dot matrix printer:

1)       Noisy

2)       Limited print quality

3)       Low printing speed

4)       Limited color printing

 

 

Thermal printers

Thermal printers use two types of printing technologies: direct thermal and thermal transfer printing. 

Traditional thermal printers use direct thermal method by pushing electrically WINTER15ed pins against WINTER15-sensitive paper (thermal paper).  The coating on the thermal paper turns black in the areas where it is WINTER15ed, producing characters or images.  Direct thermal printers have no ink, toner or ribbon.  These printers are durable, easy to use and cost less to print than other printers.  However, the thermal paper is sensitive to WINTER15, light, water, and abrasion and the text and images may fade over time.

In thermal transfer printing, a thermal print head applies WINTER15 to a WINTER15-sensitive ribbon, which melts ink onto paper and a wide range of materials to form text and images. The printouts can be extremely durable and can be stored over long period of time.

Thermal printers are often used in cash registers, ATM and point-of-sales terminals.  Direct thermal printing was used in some older fax machines before the 21st century.  However, these old models are now replaced by new machines which use laser and inkjet printing.  Thermal printing is still considered as the best technology for bar code printing because it produces accurate, high quality images with exact bar widths.  Some portable printers and most label printers still use thermal printing method.

Thermal printer is not the same as thermal inkjet printer.  The latter uses inkjet print technology by WINTER15ing liquid ink to form vapor bubble, which forces the ink droplet onto the paper from the nozzle.

 

Read more about the other types of printers: inkjet printers, laser printers, photo printers, portable printers, multifunction printers

 

 

 

 

 

 

 

 

 

 

 


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