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Inkjet advantages:

1. Compared to previous consumer-orientated colour printers, inkjets have a number of advantages. As all of know the dot matrix or the daisy wheel printers used to be very loud, when compared to them the inkjet printers have a much less noisy working.. With the help of the a higherprinthead resolution they can producefiner smoother details.Severalconsumer inkjets with photographic-quality printing are extensivelyavailable.

2. In assessment to more high-priced technologies like thermal wax, dye sublimations, and laser printers, inkjets have the benefit of almost no warm up time in addition to lower cost per page (with the exception of while in comparison to laser printers).

3. For certain inkjet printers, monochrome ink units are available both from the printer manufacturer or third-party providers. These enable the inkjet printer to compete with the silver-based photographic papers in general used in black-and-white photography, also provide the same variety of tones – simple, “warm” or “cold”. Whilst switching among full-color and monochrome ink sets, it is essential to flush out the old ink from the print head with a cleaning cartridge.

Inkjet printers have number disadvantages too :

1. The ink is usually very expensive. (For a typical OEM cartridge priced at $15, containing 5 mL of ink, the ink in effect charges $3000 a liter-or $8000 per gallon.) According to the BBC (2003), “The price of ink has been the topic of an Office of Fair Trading investigation. A journal has accused companies of lack of clearness about the price of ink moreover asked for an industry norm for measuring ink cartridge performance”.

2. various “intelligent” ink cartridges comprise a chip that communicates the expected ink concentration to the printer; this may cause the printer to display an error message, or wrongly inform the user that the ink cartridge is empty. In various instances, these messages can be ignored, but several inkjet printers will decline to print with a cartridge that declares itself unfilled, in order to restrict consumers from refilling cartridges. Thus, Epson embeds a microprocessor which prevents printing when the chip claims the cartridge is unfilled, although a programmer who by passed the system discovered that in one case he could print up to 38% extra good quality pages, even though the microchip stated that the cartridge was empty.

3. The life span of inkjet prints produced by inkjets using aqueous inks is limited; they will eventually become lighter and the color balance may change. Having said that, prints produced from solvent-based inkjets may last several years before fading away, even in direct sunlight, and so-called “archival inks” have been produced for use in aqueous-based machines which offer increased life span.

4. attention must be given to the inkjet-printed documentsto avoid even the smallest drop of water, which can set offacute”blurring” or “running” as the ink used in most consumer inkjets is water-soluble. Similarly, water-based highlighter markers can smudge inkjet-printed documents.

5. The extremely slim inkjet nozzles are prone to blockage with dried ink. The ink consumed cleansing them – either during cleaning initiated by the user, or in many cases, carried out routinely by the printer on a regular schedule – can result in loss of a significant amount of the whole ink installed in the machine.

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