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which specifies that the printer understands PostScript Level 2, is a color device, and so forth. The PPD can describe allowable paper sizes, memory configurations, the minimum font set for the printer, and even specify a tree-based user interface for printer-specific configuration.
KPDL, Kyocera Page Description Language; LCDS/Metacode, a print stream format used in older high-speed printers ; MODCA, Mixed Object Document Content Architecture (IBM) MTPL, Mannesmann Tally Printer Language; PCL, Printer Command Language (Hewlett-Packard) PDF, Portable Document Format (Adobe Systems), now ISO 32000 [4] PostScript (Adobe Systems)
JDF (Job Definition Format) is a technical standard developed by the graphic arts industry to facilitate cross-vendor workflow implementations of the application domain. It is an XML format about job ticket, message description, and message interchange. JDF is managed by CIP4, the International Cooperation for the Integration of Processes in ...
The format originates from the MVS environment, so it typically uses the EBCDIC based codepages. As with all page description languages (like PostScript, PDF, and PCL), it is necessary to use a viewer to display documents. One of the more notable features of AFP printers is that output data can be placed at any addressable point on a page.
A PDF file is organized using ASCII characters, except for certain elements that may have binary content. The file starts with a header containing a magic number (as a readable string) and the version of the format, for example %PDF-1.7. The format is a subset of a COS ("Carousel" Object Structure) format. [24]
Like PDF, XPS is a page description language using fixed-layout document format designed to preserve document fidelity, [8] providing device-independent document appearance. PDF uses Carousel Object Syntax (COS syntax) to form a random access database of objects that may be created from PostScript or generated directly from applications ...
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.
For instance, the font size is sent to the printer with the ^ADN,n,m command, where n and m are integers denoting the font size and spacing characteristics; ^ADN,18,10 is the smallest size and ^ADN,180,100 the largest. [citation needed] The following is a complete example of a ZPL document for a product label: