What is Laser Printers and How it Works?

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Laser Printer and How it Works?

• From
• Techno Edge Systems LLC
• www.laptoprentaluae.com

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Laser Printer

• Have you ever tried writing with a beam of light?
  Sounds impossible, doesn't it, but it's exactly
  what a laser printer does when it makes a
  permanent copy of data (information) from your
  computer on a piece of paper.
• Laser printers incorporate laser as well as
  contain pivoting chamber covered with
  photosensitive electrically charged material and
  arrangement of mirrors.
• When you are sending an archive to a laser
  printer, laser light is thought about by the
  mirrors to the chamber which kills electric
  charges in particular regions.

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Laser Printers similar to Photo Copiers

• Laser printers are a lot like photocopiers and
  use the same basic technology. Indeed, laser
  printers were actually built from modified
  photocopiers. In a photocopier, a bright light is
  used to make an exact copy of a printed page.
• The light reflects off the page onto a
  light-sensitive drum static electricity (the
  effect that makes a balloon stick to your clothes
  if you rub it a few times) makes ink particles
  stick to the drum and the ink is then
  transferred to paper and "fused" to its surface
  by hot rollers. A laser printer works in almost
  exactly the same way, with one important
  difference because there is no original page to
  copy, the laser has to write it out from scratch.

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How a laser printer works
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Working of Laser Printers

• When you print something, your computer sends a
  vast stream of electronic data (typically a few
  megabytes or million characters) to your laser
  printer.
• Millions of bytes (characters) of data stream
  into the printer from your computer.
• An electronic circuit in the printer figures out
  how to print this data so it looks correct on the
  page.
• The electronic circuit activates the corona wire.
  This is a high-voltage wire that gives a static
  electric charge to anything nearby.
• The corona wire charges up the photoreceptor drum
  so the drum gains a positive charge spread
  uniformly across its surface.
• At the same time, the circuit activates the laser
  to make it draw the image of the page onto the
  drum. The laser beam doesn't actually move it
  bounces off a moving mirror that scans it over
  the drum.

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• An ink roller touching the photoreceptor drum
  coats it with tiny particles of powdered
  ink(toner).
• The toner has been given a positive electrical
  charge, so it sticks to the parts of the
  photoreceptor drum that have a negative charge
  (remember that opposite electrical charges
  attract in the same way that opposite poles of a
  magnet attract).
• No ink is attracted to the parts of the drum that
  have a positive charge. An inked image of the
  page builds up on the drum.
• A sheet of paper from a hopper on the other side
  of the printer feeds up toward the drum. As it
  moves along, the paper is given a strong positive
  electrical charge by another corona wire.

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• At the point when the paper moves close to the
  drum, its positive charge draws in the adversely
  charged toner particles far from the drum.
• The picture is exchanged from the drum onto the
  paper be that as it may, for the occasion, the
  toner particles are simply laying softly on the
  paper's surface.
• The inked paper passes through two hot rollers
  (the fuser unit). The heat and pressure from the
  rollers fuse the toner particles permanently into
  the fibers of the paper.
• The printout emerges from the side of the copier.
  Thanks to the fuser unit, the paper is still
  warm. It's literally hot off the press!

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Conclusion

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• Techno Edge Systems L.L.C
• Call us at 971555279076
• Website www.laptoprentaluae.com