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The main components of a copier

July 19, 2023

The main components of a copier

What we usually call a copier is an electrostatic copying machine, which is a device that uses electrostatic technology to copy papers.

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The copier has a fast copying speed and is easy to operate. The main difference from the traditional typeface printing, stencil mime printing, offset printing, etc. is that the copying can be obtained directly from the original without intermediate means such as other plate making. It is more economical when the number of copies is small.

Origins of the copier

In the pre-photocopier days, duplicate copies of a document were usually made at the source, either by using carbon paper or manual duplicating machines. People were happy with how things worked, and no one really thought that a photocopier could ever exist. However, Chester Carlson, the man who invented the photocopier, had different plans for the world.

He was actually a patent attorney, and only a part-time inventor. His work at the New York Patent Office required him to make multiple copies of important documents, which he not only found extremely tedious and boring, but also discomforting, as he suffered from arthritis.

He conducted experiments of photoconductivity in his own kitchen, made the first crude design of a copier, and applied for a patent in 1938. He then approached numerous companies, including General Electric and IBM, all of which turned him down, citing that since there were already a few methods available to make duplicate copies of documents, no one would be interested in buying a copier.

Parts of a copier

A typical photocopier (also casually known as a 'xerox machine') consists of the following components:

A photoreceptor drum (or belt), which is covered by a layer of a semiconductor material, such as selenium, silicon or germanium. This is arguably the most critical part of the machine.

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A toner, which is basically just pigmented liquid. Sometimes referred to as 'dry ink', a toner is a dry mixture of fine, negatively-charged plastic particles and coloring agents that create the duplicate image on a piece of paper.

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A transfer belt is a transfer device whose function is to uniformly transfer toner of four different colors, transfer a toner image formed on a plurality of photoreceptors, and temporarily hold the printer to perform fixing imaging. Mainly used in color laser printers and color copiers. The font is printed onto the transfer belt and the transfer belt is printed onto the paper.

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A light source and a few lenses, which shine a bright beam of light on the original document and focus a copy of the image onto a specific place, respectively.

A fuser can be considered the 'final' main component of a photocopier, as a fuser unit melts and presses the toner image onto the copy paper and imparts the final touches to the duplicate image just before it's ejected from the machine.

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HONGTAI provides customers with high-quality spare parts of various models of photocopiers, such as Xerox, Canon, Sharp, Konica Minolta, Ricoh, Toshiba, Kyocera, etc. Welcome to inquire.