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Laser Printers - How Do They Work?
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Courtesy of
worldstart.com
Ever
wonder how a laser printer does its job? Well, to
begin, a laser printer is a little different from a
regular inkjet printer. A lot of people wonder how
it can print words and pictures on to paper with
just a single laser beam, but it sure can!
Basically, a laser printer works primarily with
static electricity, believe it or not! While clothes
dryers use static electricity to make clothes stick
together, a laser printer uses it as a type of
"temporary glue." That "glue" is then used along
with a revolving drum and some powder toner to
print. Okay, let's break this down a little more.
The
laser beam from the printer creates the actual image
(or whatever you're printing) on the drum. The light
from the laser then changes the electrical charge
whenever it hits the drum. Next, the drum is rolled
over the toner, which is then transferred to your
paper through heat and pressure. A laser printer
works similarly to a photo copier machine, so that's
a good way to think about it.
Laser printers are also dependent on resolutions.
These printers range from 300 dpi (dots per inch) to
1,200 dpi. Some laser printers can achieve higher
resolutions, which is known as resolution
enhancement.
Different printers also use various amounts of
toners. A standard monochrome laser printer uses a
single toner, while a color printer uses up to four
toners. (Color printers are much more expensive
though!)
Laser printers are known for printing high quality
work and they are able to print a variety of fonts,
images and graphics, which is very nice if you do a
lot of that type of work.
Keep
in mind that if you're going to be using the laser
printer to print a lot of high resolution graphics,
you're going to need a printer with some extra
memory.
Laser printers are also known for being quieter and
a little bit faster than regular printers. So, there
you have it, the basics of laser printers all
wrapped up!
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