In the days when DOS was widely used, many printers had emulation modes for Epson FX-80 and IBM Proprinter commands. In addition, it's possible for applications to include tools for editing printer description, in case there was no ready driver. Printers, too, have been supplied with drivers for the most popular applications. a word processor) may be shipped with its own printer drivers, which were essentially descriptions of printer escape sequences. In order to support more complex printing for different models of printers, each application (e.g. Under DR-DOS, however, the SCRIPT command can be loaded to run in the background in order to intercept and convert printer output from applications into PostScript to support PS-capable printers also by applications not supporting them directly. If the optional character device driver PRINTER.SYS is loaded, DOS provides its code page switching support also for the associated printers-different types of dot matrix and ink jet printers are supported by default.īeyond this, there are no system-wide printer-specific drivers for use at application level under MS-DOS/PC DOS.

Therefore, this method of printing is either for files already stored in the corresponding printer's language or for generic text files without more than simple line-oriented formatting.ĭOS also provides a dynamically loadable print spooler named PRINT as well as optional support to support screen captures also in graphics mode through GRAPHICS. The contents is transferred to the printer without any interpretation. Users can use commands like, for example, ' COPY file1 LPT1:' to print the content of a file to a printer. Similarly, serial printers can be used with AUX:, COM1:, COM2:, COM3: and COM4. On startup, each backend is asked for a list of devices it supports, and any information that is available.ĭOS supports predefined character devices PRN:, LPT1:, LPT2: and LPT3: associated with parallel printers supported in the system. They are usually named the front end of the printing system, while the printer spoolers constitute the back end.īackends are also used to determine the available devices. Printer drivers are typically implemented as filters. A computer running CUPS is a host that can accept print jobs from client computers, process them, and send them to the appropriate printer.

Unix and other Unix-like systems such as Linux and OS X use CUPS (short for Common Unix Printing System), a modular printing system for Unix-like computer operating systems, which allows a computer to act as a print server. Printer drivers in different operating systems Unix and Unix-like

2.2 Converters to device-specific format.

1 Printer drivers in different operating systems.

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