A photocopying machine, also known as a copier, is an electronic device that makes copies of documents and other types of printed materials. The basic process of a photocopying machine is to use a light source to scan the original document, convert the scanned image into electrical signals, and then transfer the electrical signals to a photosensitive drum. The drum then uses the electrical signals to create a replica of the original document on a sheet of paper.
The first step in the process is to place the original
document on the copier's glass platen. The document is then scanned by a light
source, such as a halogen lamp or a laser. The light reflects off the document
and is captured by a series of mirrors and lenses, which direct the light onto
a photosensitive drum. The drum is coated with a layer of photoconductive
material, which becomes charged when exposed to light.
Read more : Latest iPhone Price List
The next step is the electrostatic writing process, where
the charged areas of the drum are selectively discharged by a laser beam,
creating a negative electrostatic image of the original document. Then, the
electrostatic image is developed by applying a fine powder called toner to the
drum, which adheres to the charged areas of the drum. The toner is then
transferred to a sheet of paper, which is passed through the machine in close
proximity to the drum.
Finally, the paper with toner image is heated and
pressurized to fuse the toner particles to the paper, creating a permanent
image. The process is repeated for each copy made.
Some copiers also have a feature called duplex printing,
which allows for automatic double-sided printing, saving paper and reducing the
amount of manual labor required.
Read more : Tutorial Corel Draw X7
Overall, the process of a photocopying machine is a complex
one that involves a series of steps, but the end result is a high-quality copy
of the original document.