The dry paper copier, or photocopier, uses the photoelectric effect as its basic working principle.
The process is to spray electric charge upon the smooth surface of a semiconductor and then flash an image to be copied onto this surface. The light causes the plate to discharge in that local area. When pigment powder is sprinkled over the plate it sticks to the charged spots and falls off the discharged spots. The plate is then placed in contact with a blank sheet of paper to which the powder is transferred. Then the paper is heated under pressure to stick the permanently pigment to the paper.
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There are numerous parts on a lathe, all of which have a specific purpose. The headstock is responsible for rotating whatever you are working on. The ways are guide rails that ensure any movement is accurate.
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Which is better depends on what you need to do. Dry toner (powder) is the more common kind of xerographic copier and printer, but liquid toners (and the machines that use them) are still offered for certain functions.
It is the photocopier drum usually relating to Xerox machines.
Xerographic photocopier, laser, computer based controller.
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The photocopier was not working, so the teacher could not copy the assignment to hand out to students. She did not know how to use the photocopier, so the teacher helped her.
A laser printer is basically a xerographic type photocopier, except instead of a glass plate and light source scanner to paint the image on the selenium drum, it uses a laser to write the image directly on the selenium drum. Everything else is the same.
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When Xerox Corporation first offered a xerographic photocopier, the machine was too expensive for most businesses, so a leasing plan was developed. As a result, in the early years of copier machine manufacturing, Xerox had greater profits from leases than from sales.
Photocopiers replaced several less-versatile machines, including the mimeograph, a nasty monster that used a typed template on a drum. Ink inside the drum flowed out through openings made by the typewriter, and onto paper as the drum rotated over it. Those of us who used them were very happy to see the first photocopiers, believe me.
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No, "photocopier" is a noun, not an adverb. An adverb is a word that modifies a verb, adjective, or other adverb, typically answering questions like how, when, where, or to what degree something is done.
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you can make a bulb working.......................