When a device is being created, it is a given that advancements will follow. According to the user’s needs the specifications of any device is modified and developed for a higher quality of output. This is done by various engineers who are well trained about that particular device. They specially learn and get trained about all the features of that device. Similarly, when new developments are made on the working of a device the old technology that was previously used will become scrapped. There are a number of technologies on which a printer operates. It is based on this printing technology that the cost of the printer is depended. Speed, quality, the noise created, permanence of the documents all depends on the technology that is used in the printer. There are some types of printers which do not go well with certain physical media. Some examples are transparencies or the carbon paper. The other aspect of printing technology that is often neglected from giving importance is its resistance to alteration. An example for this is when liquid ink is used in a printer for printing nay document cannot be altered easily as the ink is absorbed by the fibers. But, the printed documents using solid ink or toner can be altered easily when compared to the former ones. This is because when toners or solid ink are used in the printer, they do not penetrate lower than the paper surface. It is necessary in some documents to know if it has been altered. For example: cheques. In such cases, a special cheque paper can be used or a toner with anchorage can also be used. Different inks should be used to print different portions of a single cheque leaf. An MICR toner ink should be used for printing the machine readable lower portion in a cheque.
There are also some of the other technologies that are commonly found in the printers that are used nowadays. A toner based printer or the laser printers are known to produce high quality texts and graphics every time they are used. They are also used in combination with digital photocopiers and multifunctional printers. A special process called xerographic is also used. Dye sublimation printers uses heat energy to transfer they dye to a physical medium like a paper, plastic sheet or a canvas. With all the developments, HP Printers are known to be one of the fastest printer among all.