PCL vs Postscript
Printer Control Language or PCL is a common printing language used widely by many different printer manufacturers. PCL is supported by many different Operating Systems which allows for the same printer to work in many different environments. PCL is device dependent. This means that the drivers for this language utilize the printer hardware for creating some of the printed data, usually graphics data such as fill areas, underlines or fonts. This allows the computer to process the print job quickly and efficiently. The printer is then responsible to complete the creation and processing of page data. Individual printers may perform these tasks differently giving you a slightly different output.
Fast print processing.
Widely supported in many different Operating System platforms.
The same print job on two different printers may vary slightly.
Quality of graphics is dependent on the print device.
Not supported in most Macintosh environments
Postscript language or PS is a common printing language also used widely by many different printer manufacturer. It is used heavily in Macintosh platforms and for graphic applications in several platforms. Unlike PCL, Postscript is device independent. This means that the Postscript language creates all of the print data and does not rely on the printer for print data. This allow the output to be consistent when printed on more than one type of printer or print device. Specifically, the graphic objects will be consistent and in some cases of higher quality than PCL.
Graphical objects are often more detailed
The same print file should print identically on two or more different print devices. (This most beneficial when used for printing drafts on one printer then sending out to a printing company for production)
Print processing can be slow
Not found in as many platforms as PCL
Print file and memory requirements are larger.