To operate printers used to output documents from a computer, there is no need for online access. It can be printed without an Internet connection provided that the document or file to be printed is stored on a local hard drive or on a local network.
Typically, color printing uses four-color inks: cyan , magenta , yellow, and black. The resulting "primary" mixtures are red, green , and blue when the CMY "secondary" is combined at full strength.
Red, magenta and yellow inks are used to make them, as magenta absorbs green light and yellow absorbs blue light, which reflects only red light back to our eyes. You will probably understand the basic mechanism of color printing if you've ever used different colors of paint on a palette.
The earliest known form of printing applied to paper was woodblock printing, which appeared prior to 220 AD in China. Later developments in printing technology include the movable type invented by Bi Sheng around 1040 AD and the printing press invented by Johannes Gutenberg in the 15th century.
Created in China, before being further developed in Europe in the 15th century by Johannes Gutenberg and his invention of the Gutenberg press, the printing press revolutionized society there.
For printing photos and color documents, inkjet printers are better, and while there are color laser printers, they are more expensive. Laser printers don't use ink, unlike inkjet printers. The trade-off is that, in general, laser printers are more costly.
Woodblock printing, which appeared in China before 220 AD, was the earliest known form of printing applied to paper. The movable type invented by Bi Sheng around 1040 AD and the printing press invented by Johannes Gutenberg in the 15th century are also later developments in printing technology.
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