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In computers, a printer driver or a print processor is a piece of software on a computer that converts the data to be printed to a format that a printer can understand. The purpose of printer drivers is to allow applications to do printing without being aware of the technical details of each printer model.
HP Driver Deployment Utility. DDU is used to pre-configure a print driver for deployment. When the package is run on the client computer, the new configuration file configures the printer driver after it is installed, and does not interfere with WHQL certification. DDU contains the standalone DCU utility inside the package and is launched when ...
A print engine, "the unit within a printer that does the actual printing." [1] For example, in a laser printer this would consist of the laser and drum and the mechanical paper feeds. Memory to process input and build up the image of a page. The printer may have its own memory or may use the host computer's memory.
In the US, size names are often denoted with a code of the format nR, where the number n represents the length of the shorter edge in inches. In the normal series, the long edge is the length of the short edge plus 2 inches (10 in or less) or 3 inches (11 in and above).
The HP DeskJet 520 introduced resolution enhancement technology, or REt, to HP inkjet printers. It was also HP's last black-and-white-only inkjet printer. The HP DeskJet 500, 510, 520, 500C, 550C, and 560C were all replaced by the HP DeskJet 540 (3 ppm B&W, 1.5 minutes per page color). A one-pen inkjet printer, color was optional.
There is different paper for different works the quality of paper shows different ink to use. Letterpress printing was the normal form of printing text from its invention by Johannes Gutenberg in the mid-15th century and remained in wide use for books and other uses until the second half of the 20th century, when offset printing was developed.
A GTK+ dialog box for printing to either a virtual printer (to create a PDF or PostScript file) or a physical printer. In computing a virtual printer is a simulated device whose user interface and API resemble that of a printer driver, but which is not connected to a physical computer printer.
Chain Printers place the type on a horizontally-moving circular chain. As with the drum printer, as the correct character passes by each column, a hammer is fired from behind the paper. Compared to drum printers, chain printers have the advantage that the type chain can usually be changed by the operator.