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Yellow dots on white paper, produced by color laser printer (enlarged, dot diameter about 0.1 mm) Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and photocopiers produce on every printed page that identifies the specific device that was ...
Usually when printing a dark color the printer will saturate an area with colored ink dots, and conversely, for a light color it will use fewer ink dots. The resulting graininess is hard to notice with yellow because yellow is perceived as a very light color, but sparse individual cyan and magenta ink dots, e.g. for a pale blue sky, can be ...
Most printers print, in addition to the document contents requested, tiny yellow dots containing the printer serial number and a time stamp. [14] These are not microdots, but arrays of difficult-to-see dots across the printed page in an encoded pattern.
“Most printers only use four colors: cyan (blue-green), yellow, magenta and black. But some printers have extra colors like orange, green and violet. This helps them match challenging colors ...
In the CMYK model, it is the opposite: white is the natural color of the paper or other background, and black results from a full combination of colored inks. To save cost on ink, and to produce deeper black tones, unsaturated and dark colors are produced by using black ink instead of or in addition to combinations of cyan, magenta, and yellow.
A HP color laser printer with its cartridge drawer open showing the four toner cartridges inside. Color laser printers use colored toner (dry ink), typically cyan, magenta, yellow, and black . While monochrome printers only use one laser scanner assembly, color printers often have two or more, often one for each of the four colors.
GCMI, a standard for color used in package printing developed by the Glass Packaging Institute (formerly known as the Glass Container Manufacturers Institute, hence the abbreviation). HKS is a color system which contains 120 spot colors and 3,250 tones for coated and uncoated paper. HKS is an abbreviation of three German color manufacturers ...
Dots on printed paper. DPI is used to describe the resolution number of dots per inch in a digital print and the printing resolution of a hard copy print dot gain, which is the increase in the size of the halftone dots during printing. This is caused by the spreading of ink on the surface of the media.