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A virtual printer is a piece of computer software whose user interface and API resembles that of a printer driver, but which is not connected with a physical computer printer. A virtual printer can be used to create a file which is an image of the data which would be printed, for archival purposes or as input to another program, for example to ...
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.
The print engine of most All-in-one devices is based either on a home desktop inkjet printer, or on a home desktop laser printer. They may be black-and-white or colour capable. Laser models provide a better result for text while inkjet gives a more convincing result for images and they are a cheaper multifunctional. [3]
The solution was to create a queue (or "spool") of documents to be printed and use a daemon (system process) to manage this queue and send the documents to the printer in the order in which they arrived. Such a system, with an lp command to send documents to the queue, was first introduced in 1973 in Version 4 of Unix. [2]
The components of a page printer are: 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 ...
Laser printing is an electrostatic digital printing process. It produces high-quality text and graphics (and moderate-quality photographs) by repeatedly passing a laser beam back and forth over a negatively charged cylinder called a "drum" to define a differentially charged image. [1]
The desktop publishing market took off in 1985 with the introduction in January of the Apple LaserWriter laser printer for the year-old Apple Macintosh personal computer. [8] [9] This momentum was kept up with the release that July of PageMaker software from Aldus, which rapidly became the standard software application for desktop publishing. [10]
Inkjet printer: continuous 5–100 pl 1–5 mPa·s < 0.5 μm special paper required to reduce bleeding < 350 (A3 trim size) [57] Transfer-print: thermal transfer film or water release decal mass-production method of applying an image to a curved or uneven surface Aerosol-jet printer Aerosolized inks carried by gas 2–5 microns in diameter