These disadvantages have been addressed in a variety of ways:
- Clogging appears to be an inherent limitation of the design of inkjet print heads, because the ink must travel through very fine channels in order to precisely control the drop size.
- Third-party ink suppliers sell ink cartridges at significantly reduced costs (often 10%-30% of OEM cartridge prices) and also sell kits to refill cartridges, and bulk ink, at even lower prices.
- Many vendors' "intelligent" ink cartridges have been reverse-engineered. It is now possible to buy inexpensive devices to reliably reset such cartridges to report themselves as full, so that they may be refilled many times (for example, this Epson chip resetter for $8.95)
- Color gamut is also addressed by some third-party ink suppliers. The gamut for CMYK inkjet printers is broadly similar to that of CMYK offset litho printing, and it is not possible to improve much on the printer manufacturers' ink set. Printers using six or more ink colors can give a substantially improved color gamut, approximating the Adobe RGB color space. Six-color printers are based on the CcMmYK color model. When more than six colors are used, the additional inks may include a light black, a second full black (allowing the ink to be chosen to match the type of paper, and addressing metamerism issues), and additional colors such as red, green and blue.
- Ink capacity is inherently limited because the ink cartridges must fit inside the printer, usually directly attached to a moving print head. (but see continous ink systems, below)
- Print lifetime is highly dependent on the quality and formulation of the ink, as well as the paper chosen. The earliest inkjet printers, intended for home and small office applications, used dye-based inks. Even the best dye-based inks are not as durable as pigment-based inks, which are now available for many inkjet printers.
- Double-sided printing can now be incorporated by duplex attachments. These can be an add on, or incorporated in the printer. The printer pauses between sides to allow the ink to dry, then refeeds the paper back through the print path to print the second side. There are printer driver settings to change the length of the pause, if the combination of ink, paper and environmental conditions such as humidity require a longer drying time. Examples are the older Hewlett-Packard HP 900 series which had an add on duplex option, and the current K5400 series which is sold with a duplex option included. When printing both sides, a two sided paper is required. There are some two sided papers coming to market, including two sided glossy. Plain papers usually have two sides the same.
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