Have you ever wondered how your inkjet printer works?
So how exactly does a lot of it get from the inkjet cartridge towards the paper? Why is the print quality is really clear? Why the printing is really quiet?
Generally, all that most people know is that there's some movement and a faint high pitched sound when it's printing something -- and then the finished document arrives.
Unlike dot matrix and character printers that strike ribbons to create a picture, inkjet printers don't physically touch the paper.
All inkjet printers function utilizing the same basics. Tiny ink droplets are "jetted" (or pushed) out multiple holes onto paper inside a controlled and systematic fashion. This is where the word "inkjet" originates from.
How big ink droplets, speed and reliability of this kind of printer continues to be continuously improving since its inception in 1976. In 1993, Epson was the very first manufacturer to produce an inkjet printer using micro-piezo technology. The Epson Stylus 800 was the very first printer to make use of the multi-layer actuator printhead (the printhead may be the the main printer that holds numerous tiny nozzles that actually squirts the ink onto paper).
This specific printhead utilized an electro-mechanical element that acted like a tiny control room. When pulses of electricity passed through, it that gave specific signals to fire individual or multiple nozzles packed with ink.
Micro-piezo technology utilized a tiny crystal in each individual nozzle that when electrically energized, would vibrate or bend causing a controlled quantity of ink to be forced out onto paper. When the electrical current is off, the crystal bends back to its original shape, creating a vacuum, thus pulling ink into the nozzle from the reservoir for the next commanded fire.
This breakthrough printer produced a whopping 360 dpi (dots per inch) that was deemed, almost "letter quality" at that time. With a printing speed of 150 - 180 characters per second, the brand new Epson became the user favorite printer for home and office.
At the same time, HP was utilizing a similar technology. A thermal jetting system was found in their printhead. The printhead still acted such as the control room but every individual nozzle was instead independently super heated by electricity, which caused the ink to explode onto the paper. HP claims the temperature of a fired inkjet nozzle approaches that of the surface of the sun.
HP elected to place the printhead on the inkjet cartridge itself instead of mounting it permanently to the carriage. Since each inkjet cartridge might have its printhead, replacement cartridges would be more costly for these printers.
HP inkjet cartridges also couldn't print as quickly as Epson because each nozzle required to cool after firing. This heating technology also limited the kinds of inks that could be used.
While Canon and HP could create a 6 - 10 picoliter droplet size in one nozzle, Epson involved half the size (between 3 - 6 picoliters). Currently, you will find printers available that will produce a fantastic 1 picoliter droplet! To have an idea of how small this is; a real hair is all about 12 picoliters in diameter. Most human eyes can't see one jetted droplet of ink in writing.
Inkjet printers came quite a distance since their first inception.
Printers today are two times as fast as their predecessors were, and are cheaper than ever before. Many printers can easily produce color photo quality images in at an incredible 6000 dpi.
As time goes on so that as interest in printing remains high, the standard, speed and options that come with inkjet printers will only continue to improve.
Author Resource:
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