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A brayer is a hand-tool used historically in printing and printmaking to break up and "rub out" (spread) ink, before it was "beaten" using inking balls or composition rollers. A brayer consists of a short wooden cylinder with a handle fitted to one end; the other, flat end is used to rub the ink. [1]
A composition roller is a tool used in letterpress printing to apply ink to a bed of type in a printing press. It consists of a cylinder made of a substance known as "roller composition" or simply "composition", a mixture of hide glue and sugar (in the form of molasses or treacle ), with various additives such as glycerin depending on the ...
By the mid- to late-19th century, they had been largely superseded by the composition roller and the rubber roller or "brayer". [4] [5] The replacing of the labor-intensive ink balls, which had to be worked by hand, with mechanized rollers was a key factor to the growth of mechanized printing machines in the 19th century. [6]
Because changing ink color in a mimeograph could be a laborious process, involving extensively cleaning the machine or, on newer models, replacing the drum or rollers, and then running the paper through the machine a second time, some fanzine publishers experimented with techniques for painting several colors on the pad.
A handheld scanner is a portable version of an image scanner that can be used on any flat surface. Scans are typically downloaded to the computer that the scanner is connected to, although some scanners are able to store scans on standalone flash media (e.g., memory cards and USB drives ).
The screens make sure the ink flow is regulated. 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.
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