inkjet printer

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inkjet printer

(hardware, printer)
A class of printer in which small ink droplets are sprayed electrostatically from a nozzle onto the paper.

Inkjet printers are very quiet in comparison to impact printers.

A popular example is the Olivetti BJ10.

inkjet printer

A printer that propels droplets of ink directly onto the medium. Today, almost all inkjet printers produce color. Low-end inkjets use three ink colors (cyan, magenta and yellow), but produce a composite black that is often muddy. Four-color inkjets (CMYK) use black ink for pure black printing. Inkjet printers run the gamut from less than a hundred to a couple hundred dollars for home use to tens of thousands of dollars for commercial poster printers. See inkjet cartridge.

Consumables
The cost of ink cartridges for low-priced printers can make the less-expensive inkjet model more costly in the long run. For example, if the black ink does not come in a separate cartridge, you have to replace the entire four-color unit when you run out of black.

Resolution Quality
For resolution quality, examine text samples, not graphics. Graphics always look better than text. For color quality, be sure that samples from different models are printed on the same kind of paper. Coated specialty papers, although costly, greatly improve the printed results, because they do not absorb the ink like regular copy paper. Ink and paper costs are ongoing, which must be taken into consideration.

Wide-Format Printers
Large wide-format inkjet printers are used to produce final output for commercial posters and banners. Such printers can print on vinyl and textiles as well as paper, and their quality is extraordinary. Wide-format printers have also replaced pen plotters that used to "draw" engineering and architectural renderings.

Continuous Ink Vs. Drop on Demand


The first inkjet mechanism that was developed sprays a continuous stream of droplets that are aimed onto the paper. Although still used, most inkjets use the drop on demand method, which forces a drop of ink out of a chamber by heat or electricity. The thermal method used by HP, Canon and others heats a resistor that forces a droplet of ink out of the nozzles by creating an air bubble in the ink chamber. Epson and others use a piezoelectric technique that charges crystals which expand and "jet" the ink. See solid ink printer, IRIS printer, printer and ink coverage.


Continuous Inkjet Technology
This method sprays continuous droplets of ink that either reach the paper or wind up in the return gutter. The nozzle uses a piezoelectric crystal to synchronize the chaotic droplets that arrive from the pump. The charging tunnel selectively charges the drops that are deflected into the gutter. The uncharged droplets make it to the paper. The diagram depicts a single nozzle.







Thermal Drop on Demand Method
The thermal drop on demand inkjet technology is very popular. Used by HP, Canon and others, droplets of ink are forced out of the nozzle by heating a resistor, which causes an air bubble to expand. When the bubble collapses, the droplet breaks off and the system returns to its original state.







Drop on Demand Printheads
There are two ways to "jet" the ink in drop on demand systems. The thermal method heats a resistor and expands an air bubble. The piezoelectric method charges crystals that expand.








Letter Size
The majority of desktop inkjet printers support standard letter-size or legal-size paper. This is one of HP's earlier DeskJets, which popularized the inkjet printer and helped bring prices down for the home and small business. (Image courtesy of Hewlett-Packard Company.)








Larger Paper
Many inkjet printers can print on large paper. This earlier unit from Tally handled cut sheets up to 17" wide. (Image courtesy of Tally Printer Corporation.)









The Largest
Wide format inkjet printers such as shown here in VUTEk's datacenter have revolutionized the printing industry, enabling large, attractive graphics to be created one at a time. Such machines support up to eight colors and can print on a variety of media, including vinyl and textiles. (Image courtesy of VUTEk, Inc., www.vutek.com)
References in periodicals archive ?
PIXMA MG7720 Wireless Inkjet All-In-One Printer, PIXMA MG6820 Wireless Inkjet All-In-One Printer, PIXMA MG6821 Wireless Inkjet All-In-One Printer, PIXMA MG6822 Wireless Inkjet All-In-One Printer, PIXMA MG5720 Wireless Inkjet All-In-One Printer, PIXMA MG5721 Wireless Inkjet All-In-One Printer, PIXMA MG5722 Wireless Inkjet All-In-One Printer
Offering an 'inkjet insights' website allow us to communicate with customers to show what is new and exciting in the world of inkjet printing from Fujifilm," says Jeffrey Nelson, business development manager, Inkjet Solutions, Fujifilm North America Corporation, Graphic Systems Division.
The Global Inkjet Heads Industry Report 2015 is a professional and in-depth study on the current state of the inkjet heads industry with a focus on the Chinese situation.
Melbourne-based Digital Ink Technologies, a specialist inkjet ink and research and development company since 992, is extolling the benefits of its locally developed POLYtij (patent pending) thermal inkjet ink in enabling packaging printers to use the large existing installed base of Hewlett Packard in et printers beyond secondary packaging.
As of October, Sam's Club customers can drop off their used inkjet and laser toner cartridges, as well as their old cell phones and batteries, at kiosks inside select Sam's Club stores.
The inkjet production method to be adopted in the new line has been developed as part of DNP's process technology activities, following the decision to put this production method into operation following successful completion of commercial viability tests.
If you'll be using the printer for items such as memos and other small print jobs, an inkjet printer should suffice.
The controversy runs the gamut from claims by environmental groups that flame retardants used in the equipment is hazardous, and resultant action by the European Union, to a CPSC defense of the safety of inkjet printers.
In 1999, US color inkjet shipments from Lexmark's OEM, Compaq, were four times that of Hewlett-Packard's Apollo inkjet printers," says Weili Su, analyst for IDC's US Quarterly Printer Tracker.
The initiative represents a $325 million investment by Xerox and is expected to create up to 1,000 new inkjet manufacturing and engineering jobs by 2003.
Xerox entered the inkjet printer market two years ago.
The report provides a clear explanation of the various inkjet technologies piezo, thermal, continuous a "cast of characters" or a list of the manufacturers and systems currently on the market, a look at the applications (packaging, variable-data printing, transactional printing, industrial printing) for which inkjet systems are being developed, and conclusions and recommendations.