How does photocopy machine works?
machines are fairly complicated devices, but the basic principal is pretty simple. At the heart of the process are static electricity, a metal drum, a system of lenses, and dark powder.
The machine's function depends on the fact that opposite electrical charges attract each other.
When you put the letter on the glass plate to take a copy of it and push the start button, a metal drum below the glass is given a negative electrical charge. A bright light shines on the original image, and a system of lenses projects that image onto the drum.
Where the light strikes the metal surface of the drum the electrical charge disappears, but the dark parts of the image, that is, the letters on the page, keep their charge.
At this point positively charged particles of black powder are deposited on the drum with its negatively charged letters. Then a negatively charged piece of paper is pressed against the positively charged powder which is transferred to the paper. Heat is momentarily applied to fuse the powder to the paper, and out comes a warm copy of your letter.
So, it's the interaction of positively and negatively charged parts in the copy machine that allows the image to be copied from one piece of paper to another.
The benefits from the presence of a photocopy machine will vary somewhat depending on how it is used. In general, being able to make one or more exact copies of a document immediately, without use of liquid chemicals and a darkroom, and without having to retype it using carbon paper, is the chief benefit.
A Xerox machine is any machine marketed by the Xerox Corporation or its affiliate, FujiXerox, Incorporated. These machines perform a wide variety of functions, including copying, printing, scanning, binding, projecting, etc. The term "Xerox Machine" is sometimes incorrectly used to mean a machine that makes copies, i.e a photocopy machine. Photocopy machines scan an original of some sort and create a duplicate of that image, usually on a piece of paper. A printer takes input…
Sometimes it's extremely difficult to tell the difference - since photocopier technology has advanced over the years. However - you can never escape a dirty screen ! One of the easiest ways to tell a photocopy form the original is to compare them side-by-side. If the glass on the copier machine isn't spotlessly clean, any blemishes will show as additional spots on the photocopy, but NOT on the original.
The ability to photocopy in duplex (or both sides of the page at once) is purely dependent on the ability of the copier machine to perform the task. Some machines can do it automatically - those that can't, you'd need to re-insert the 'side one copies' into the feed tray in order for them to accept the copy for the reverse.
You can send anything as a fax that you can put in the fax machine. Some fax machines have a flatbed scanner; otherwise, if the fax machine uses a sheet feeder, you will need to either tear the pages out of the magazine or make a photocopy of the magazine pages and send the photocopy through the fax machine. Also note that illustrations, especially color photos, on a magazine page will usually not turn out…
Sort of - you can make a photocopy of anything you can place on the copier platen, but it may not turn out as your expect. The image of a person's behind is distorted because it is spread out on the platen, and, because the machine is not designed for that sort of weight, the glass platen and other parts may be broken causing you injury and your employer or school unnecessary expense.