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HP Universal Print Driver (UPD) is an intelligent print driver that supports a broad range of HP print devices, such as LaserJet and various MFPs.Developed by Hewlett-Packard, HP UPD combines a general purpose driver (XPSDrv, UniDrv, or PSCRIPT), print control, and HP proprietary extensions.
As of 2021 the supplied printer-drivers support a total of 3,088 HP printer models; [3] many of these for low-end models are free and open-source (FOSS), licensed under MIT, BSD, and GPL licenses, but others (including all color laser MFC printers on the market for years) require proprietary binary blobs ("plug-ins").
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.
As originally used, firmware contrasted with hardware (the CPU itself) and software (normal instructions executing on a CPU). It was not composed of CPU machine instructions, but of lower-level microcode involved in the implementation of machine instructions. It existed on the boundary between hardware and software; thus the name firmware.
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Printer Job Language (PJL) is a method developed by Hewlett-Packard for switching printer languages at the job level, and for status readback between the printer and the host computer. PJL adds job level controls, such as printer language switching, job separation, environment, status readback, device attendance and file system commands.
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The Internet Printing Protocol (IPP) is a specialized communication protocol used between client devices (computers, mobile phones, tablets, etc.) and printers (or print servers). The protocol allows clients to submit one or more print jobs to the network-attached printer or print server, and perform tasks such as querying the status of a ...
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