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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 ...
Stencil-based machines Mimeograph (also Roneo, Gestetner) Digital Duplicators (also called CopyPrinters, e.g., Riso and Gestetner) Typewriter-based copying methods Carbon paper; Blueprint typewriter ribbon; Carbonless copy paper; Photographic processes: Reflex copying process (also reflectography, reflexion copying)
A spirit duplicator (also Rexograph and Ditto machine in North America, Banda machine and Fordigraph machine in the U.K. and Australia) is a printing method invented in 1923 by Wilhelm Ritzerfeld, which was used for most of the 20th century. The term "spirit duplicator" refers to the alcohols that were the principal solvents used in generating ...
The paper is fed to the drum, and the ink only comes through the master material where there are holes. A pressure roller presses the paper to the drum and transfers the ink to the paper to form the image. The paper then exits the machine into an exit tray. The ink is still wet.
Konica Minolta closed down its photo imaging division in March 2007. The color film, color paper, photo chemical and digital mini-lab machine divisions have ceased operations. Dai Nippon Printing purchased Konica's Odawara factory, with plans to continue to produce paper under Dai Nippon's brand. CPAC acquired the Konica chemical factory.
Ozalid machine in use with the City of Seattle, City Light office, circa 1954. Ozalid is a registered trademark [1] of a type of paper used for "test prints" in the monochrome classic offset process. The word "Ozalid" is an anagram of "diazol", the name of the substance that the company "Ozalid" used in the fabrication of this type of paper.
The heat lamp makes indirect revealing. After cooling the film or paper, a stable black-and-white image is obtained. [2] Process: A special "heat sensitized" paper is fed into the copier in direct contact to the original. There is a strong lamp within the machine that heats both original and the "heat sensitized" copy paper. Due to its ...
Gyotaku (魚拓, from gyo "fish" + taku "stone impression", fish print(ing)) is the traditional Japanese method of printing fish, a practice which dates back to the mid-1800s. This form of nature printing , where ink is applied to a fish which is then pressed onto paper, was used by fishermen to record their catches, but has also become an art ...