Transcript 下載/瀏覽Download

Printer
Reporter:
Ciou, LI Hong 49912091
Yeh, JIun Lin 49912111
Instructor:LIN,RU-LI
STUSTDepartment of Mechanical
Engineering
Directory
Printer development history
 Printer types
Printer principle introduced with the advantages and
disadvantages
Conclusion
 References
Printer development history
Chinese Song Dynasty in the eleventh century by the Bi Sheng
invented letterpress printing (for the wet printing), the late
nineteenth century to the early twentieth century, before entering the
early stages of copying technology.
Mid-twentieth century, was only invented a dry printing; 1970s,
printing technology improved, more mature paper technology, the
more stable print quality, only gradually open the market.
1959 HE Roy. Xerox released the first Xerox 914 copier called on
the World Expo, which is the first commercial copiers,
Printer types
1. Dot-matrix Printer
2. Ink-Jet Printer
3. Laser Printer
4. Solid Ink Printer
5. Thermal Wax-Transfer Printer
6. Dye Sublimation Printer
Printer principle introduced
1.Dot-matrix Printer
Dot matrix printers are impact printer (Impact Printer).
The principle is printed ribbon through the impact dot matrix print
head inside the firing pin, and the ink printed on paper,
Produce print results.
Dot matrix printers are printed graphics by different firing pin
arrangement, also printed in the text.
The more quality the better striker print.
Advantages: low prices, supplies cheaper to print continuous forms, can
be replicated to print.
Disadvantages:noisy, poor print quality, and you can not print color
images, so the current Few people have been using.
2. Ink-Jet Printer
And dot matrix printing principle is
almost the same there is a print head,
but the striker replaced the ink
nozzles, replace the ink ribbon
cassette.
When printing directly from the
nozzle heating or pressurized spray
ink onto the paper, so it will not
impact matrix little noise problem.
Advantages: low price, low noise, excellent print quality and color
printing is quite convenient.
Disadvantages: Paper material is not good, the ink is easy to blur, high
cost of ink and paper supplies, document printing easier to blur water
3. Laser Printer
Principle: laser printer is the most important element is the drum that
organic image transmission mechanism, the entire printing process is to
drum as the center of the action again and again.
The whole process work monochrome laser printer can be said charging
→ exposure → imaging → Steering → Fixing → turn like fusing
→ Clear In addition to the seven steps like loops.
Step one: Print command issued after the
user in the application, the entire process is
then laser printing prologue from "charging"
the action commenced, the first on the drum
filled with negative or positive charge
Step Two: The printer then good image
processor data processing through the
laser beam onto a photosensitive drum, in
the corresponding position on the
formation of "exposure."
Step 3: Then due toner drum of the same
nature with the same charge, this time
when rapid rotation of the drum through
the toner cartridge, the site will be exposed
adsorption charged toner,
"Imaging" of the image.
Step Four: After entering the inside of the
machine with paper and toner opposite
positive or negative charge due to the
reason that opposites attract, so they can
make the toner on the drum 'turn as "to the
paper.
Step Five: In order to be attached to the
paper, the toner tighter good, then the
heater temperature and pressure of the
way places, the toner "fixed" in the
paper. This is why each paper has just
print out the reasons for the higher
temperatures.
Step Six: Then the residual toner on the
photosensitive drum "clear."
Step 7: The last action is "except as" that is, to remove static
electricity, so that the surface potential of the photosensitive
drum to return to the initial state in order to start the next
loop action.
Laser system diagram
Advantages: : fast print speed, good quality.
Diaadvantages: : expensive.
Commonly used in schools, printing,
businesses are using.
4. Solid Ink Printer
Also called solid ink printer, the print principle is printed
before heating the solid pigment into liquid, then sprayed
through nozzles onto the paper, and then solidified on
paper.
Advantages: less likely than inkjet printer paper pick from photocopy paper to
use thicker snow mold copper paper can be also be printed directly onto the
slide. And the ink is solid condition usually does not get dirty.
Disadvantages: the price is not cheap.
Applies to high-end color graphics output, such as commercial design, printing
and export centers.
5. Thermal Wax-Transfer Printer
With spray wax printers of the same class
color printer, print the principle is the liquid
wax is heated, so that adheres to the paper or
transparencies. Because it is a direct imprint
on the wax paper, unlike solid ink is ejected
through the nozzle, so the print on
transparencies clearer. Printing costs and
application areas of both the same.
6. Dye Sublimation Printer
Print principle: heat of
vaporization of the ink on the
ribbon (also known as
sublimation), so that the dye
attached to a gaseous state
special paper (like paper) on.
Print image is the sharpest
color printing mode, the effect
of encroaching photos.
Ribbon roll
Print heat
Vaporized dye
Advantages: High-quality output, usually available thermal
transfer print output, and then use high-quality dye-sublimation
to print when needed.
Disadvants: expensive supplies, the slowest.
Conclusion
Development of the printer is very fast, while not yet
universal, the most common way to transfer no more than
handwriting, typing, etc., it is very time consuming and
cumbersome. Since the widespread use of computers,
printers, because it can rapidly produce a large number of
text, graphics, etc., so the business community to become
an integral part of the device.
Over the past decade, laser printers and inkjet printers
are the most appeal,
Reference
s
●http://tw.myblog.yahoo.com/jw!Ge8V1rCRGBak9z9s7GSndvVukA-/article?mid=472
●http://tw.myblog.yahoo.com/jw!.BV4xiSWGRGCalm8lKqVIWmF3dhW6
Q--/article?mid=674
●http://easylearn.bhes.tpc.edu.tw/name/hardware/r_printer.htm
●http://blog.xproda.com/2010/05/blog-post_28.html
●http://www.youtube.com/watch?v=RuHG1UrPslk
● http://www.youtube.com/watch?v=Yah1hEcx7e0
●http://tw.knowledge.yahoo.com/question/question?qid=1005010803590
Thank you for your attention