Printer Job Language
Encyclopedia
Printer Job Language 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. While PJL was conceived as an extension to Printer Command Language
, it is now supported by most PostScript
printers. Many printer vendors have extended PJL to include commands proprietary to their products. Not all PJL commands documented by HP are implemented in all HP or other vendor products. PJL resides above all the other printer languages and parses commands first. The syntax
mainly uses plain English
words.
Hewlett-Packard
Hewlett-Packard Company or HP is an American multinational information technology corporation headquartered in Palo Alto, California, USA that provides products, technologies, softwares, solutions and services to consumers, small- and medium-sized businesses and large enterprises, including...
for switching printer
Computer printer
In computing, a printer is a peripheral which produces a text or graphics of documents stored in electronic form, usually on physical print media such as paper or transparencies. Many printers are primarily used as local peripherals, and are attached by a printer cable or, in most new printers, a...
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. While PJL was conceived as an extension to Printer Command Language
Printer Command Language
Printer Command Language, more commonly referred to as PCL, is a page description language developed by Hewlett-Packard as a printer protocol and has become a de facto industry standard. Originally developed for early inkjet printers in 1984, PCL has been released in varying levels for thermal,...
, it is now supported by most PostScript
PostScript
PostScript is a dynamically typed concatenative programming language created by John Warnock and Charles Geschke in 1982. It is best known for its use as a page description language in the electronic and desktop publishing areas. Adobe PostScript 3 is also the worldwide printing and imaging...
printers. Many printer vendors have extended PJL to include commands proprietary to their products. Not all PJL commands documented by HP are implemented in all HP or other vendor products. PJL resides above all the other printer languages and parses commands first. The syntax
Syntax
In linguistics, syntax is the study of the principles and rules for constructing phrases and sentences in natural languages....
mainly uses plain English
English language
English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...
words.