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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 ...
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.
This is an accepted version of this page This is the latest accepted revision, reviewed on 7 January 2025. Book containing line art, to which the user is intended to add color For other uses, see Coloring Book (disambiguation). Filled-in child's coloring book, Garfield Goose (1953) A coloring book is a type of book containing line art to which people are intended to add color using crayons ...
A method of full-color printing is six-color process printing (for example, Pantone's Hexachrome system) which adds orange and green to the traditional CMYK inks for a larger and more vibrant gamut, or color range. However, such alternate color systems still rely on color separation, halftoning and lithography to produce printed images.
The CMYK color model is based on the CMY color model, which omits the black ink. Four-color printing uses black ink in addition to subtractive primaries for several reasons: [2] In traditional preparation of color separations, a red keyline on the black line art marked the outline of solid or tint color areas. In some cases a black keyline was ...
Mary Clark (est. by 1650 – after 1697) was a 17th-century printer and publisher who operated on Aldersgate Street, London, from 1677 to 1696. Operating her shop on Aldersgate Street, Clark oversaw the printing and publication of over 100 imprints. [42] The print shop was established by her husband, Andrew Clark.
Virgin and Child with Four Angels (or Virgin and Child with Angels) is a small oil-on-panel painting by the Early Netherlandish artist Gerard David. Likely completed between 1510 and 1515, it shows the Virgin Mary holding the child Jesus , while she is crowned Queen of Heaven by two angels above her, accompanied by music provided by another two ...
In paintings, Mary is traditionally portrayed in blue. This tradition can trace its origin to the Byzantine Empire , from circa 500 AD, where blue was "the color of an empress". A more practical explanation for the use of this color is that in Medieval and Renaissance Europe , the blue pigment was derived from the rock lapis lazuli , a stone ...