S e l e c t i n g a P a p e r S o u r c e2-30v 4 5 2 0 / 4 5 2 0 m p U s e r ’ s G u i d eFor a print job, your software application sends information,called the Printer Control Language (PCL), to the printer tocommunicate paper source and page size. How the printerinterprets the PCL command for paper source and page sizedepends on the printer menu settings for Source Mappingand MBF Paper Size. If PCL commands for paper source andpage size are not sent to the printer, the printer menu settingsfor Paper Size and Default Source are used. SeeChapter 3: Using the Control Panel for further information onthese and all PCL Menu settings (page 3-15).PostScript functions differently than PCL. Refer to thePostScript Installation Instructions for more information.Paper source is a term that describes the tray, feeder, or slotfrom which the printer feeds paper.PCL, and therefore your printer, recognizes the six papersources shown in Figure 2.16, which may, or may not, appearin your software application.Figure 2.16 Six PCL paper sourcesPCL Paper Source Alternate NamesUpper Upper, Paper Tray, Paper CassetteManual Manual, Manual FeedManual Envelope Envelope Manual FeedLowerLarge Capacity Paper DeckEnvelope FeederSelecting aPaper SourceNotePCL Paper SourcesWUG-CH02 Page 30 Black,Red,Cyan Sunday, January 22, 1995 7:32 PM