HP LaserJet 4100 HP PCL/PJL reference (PCL 5 Printer Language) - Technical Ref - Page 363
Portrait, Print Environment, Printer Commands, Printing Menu, Raster Graphics, Reset
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Portrait See Orientation. Print Environment The group of all the printer's current feature settings, collectively, is referred to as the print environment. The printer identifies four levels of changes of this print environment: the factory default environment, the user default environment, the modified print environment and the overlay environment. Printer Commands See PCL Commands and HP-GL/2. Printing Menu Identifies a few printer features which can be selected from the printer's Operator Control Panel, [[Menu]] key. Print menu features select the user default items, which are included in the print environment (features which can be selected with printer commands). Raster Graphics Images composed of groups of dots are raster images. Pictures in newspapers or on televisions are examples of raster images. PCL includes commands for printing raster images. Reset Resets are used to return the printer to a known environment. Depending on the type of reset performed, the printer returns to either the User Default Environment or the Factory Default Environment. A Printer Reset restores the User Default Environment and deletes temporary fonts, macros, user-defined symbol sets and patterns. A Printer Reset is performed by sending the ?E command or through the printer's control panel (see the printer User's Manual). EN Glossary-11