Laser Printers
DECEMBER 4
202110635
Done by: Hayder Faleh
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Introduction
Laser Printers
Laser printers are only one of the many different types of printers accessible today.
Instead of ink, lasers use toner to duplicate an object, which is then transferred to
paper. They are used to produce high quality images and graphics of the desired
image. A Laser Printer is a type of printers that utilizes a laser beam to produce an
image on drum. It uses a non-impact photocopy techniques, meaning that the keys
don’t strike the paper. Businesses nearly exclusively utilize laser printers because
they have a reputation for being dependable and producing high-quality prints. Laser
Printers’ are also very popular and useful in the medical field. This report will also
include their applications in that field.
“I'm a big laser believer - I really think they are the
wave of the future.”
- Courteney Cox
Basic Components
To understand more about a Medical Laser Printer, we should have an idea about a
Laser Printer’s main components.
 Drum: The drum inside the toner cartridge is photosensitive (reacts to
light). The laser beam is reflected onto the surface of the drum to create a
pattern of charged representing the image of the page to be printed.
 Laser: The laser beam paints the image of the printed page on the drum.
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 Power Supply: The process uses very high voltage to charge the drum and
transfer and hold the toner on the paper.
 Paper Transport: The paper path for laser printers ranges from a simple,
straight path to the complicated turns of devices. The goal is the same for
all these devices to move the paper from a supply bin to the engine where
the image is laid on the paper and fixed to it.
 Primary Corona: Charges the photosensitive particles on the surface of the
drum.
 Transfer Corona: Charges the surface of the paper just before it reaches the
toner area.
 Fuser Roller: The fuser makes the printed pages hot. The toner is melted
permanently to the page by apply pressure and heat (between 165 and
18OC) to it.
 Controller: It communicates with the OS of printer, and forms the image
printed on the page. It is the motherboard of the laser printer, and it has
architecture and components like a PC motherboard.
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Printing Process
Basically in Laser Printers, the material is created
on a computer and delivered to the printer,
which keeps the data in memory, composes one
page of material at a time, and regulates the
scanning of the laser beam to make the desired
image. All of this happens in the steps known as:
“Sending, Cleaning, Conditioning, Exposing, Developing,
Transferring, and Fusing.”
What happens in these steps is that the printers laser beams your print onto a
metal cylinder called a drum. After that, using static electricity, the drum
attracts powdered toner from its cartridge to the drum. The drum then rolls the
toner onto the paper in the form of your print. The toner is melted onto the
paper by heat from a fuser as it passes underneath. And finally your print
comes out of the printer. And that is how it depends on Lasers the most.
Applications
 Taking Huge Printouts (Hoardings and Banner Printings).
 Mass productions over a short period of time.
 Medical histological slide printing: The laser printer prints on histological slides
instead of paper here. A slide with double layer frosted end of different
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contrasting colors, white on top of black, to guarantee an exceptional contrast
and resistance to all common chemicals used in the laboratories and hospitals.
 Fabrication of tissue engineering scaffolds with the use of selective laser
sintering, which is composed of a laser printer and a 3d printer.
 Laser-assisted bioprinting: using a laser as the energy source to deposit
biomaterials onto a substrate. Used for tissue engineering.
 High-Resolution Laser Imaging for diagnoses and X-Ray scans.
 Taking Laser Medical Films.
Benefits
Laser printers do not make a mess. There is no danger of ink spilling on documents,
desks, or you due to the fact the toner is a dry powder component. High-resolution
objects and medical scans or slides are produced through laser printers. This suggests
that the print is readable and clear. Laser printers produce a dry end result quickly. A
laser printer has a median lifespan of 10 years or more. Medical Laser Printers'
lifespans can attain to fifteen years and above relying on their types and uses.
Negativities
Laser printers value significantly greater than other printers. Toner cartridges
additionally value greater than an ink cartridge. Lasers use heat withinside the
manufacturing of printed materials, so one need to make certain the vicinity is nicely
ventilated or the printer can also additionally burn out or smell. Laser printers are
huge so they may not fit in tight quarters. Numerous studies have shown that the
toner used in laser printers contains hazardous compounds such as metallic
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nanoparticles and carcinogenic substances which are emitted into ambient air during
the printing process and can cause various health issues in Medical Centers and Labs
like causing eye damage.
Conclusion
Even with it’s side-effects, a Laser Printer’s positivities far surpass the number of it’s
negativities. Laser Printers have proved their use in many fields and are still being
developed in the medical and biomedical engineering fields to always produce fine
results of prints, tissues, objects, and many more.
Resources
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https://www.rmxcmedical.com/printers
https://link.springer.com/chapter/10.1007/978-3-642-413414_4#:~:text=SLS%20has%20found%20many%20applications,for%20surgical%20
planning%20and%20simulation.
https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-0161028-0
https://www.patholab.it/laser-printer-slide?lang=en
https://www.techwalla.com/articles/what-is-a-laser-printer-used-for
https://www.medicalexpo.com/prod/cellink/product-121743-1018313.html
https://www.medicalexpo.com/medical-manufacturer/laser-printer-26813.html
https://www.tonergiant.co.uk/blog/2016/12/how-laser-printers-work-ultimateguide/
https://www.techwalla.com/articles/what-is-a-laser-printer-used-for
https://www.sciencedirect.com/topics/engineering/laser-printer
https://www.tonerbuzz.com/blog/the-laser-printing-process/
http://www.chinamedicalfilm.com/index.html
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