Laser Printer User Manual

4.7 GRAPHICS

TheStarLaserPrinter4offerstwokindsofgraphics.Itprintsru.stergraphics

(sometimescalled “bit-mappedgraphics”),which specify each dot in a

graphicspattern. And it printspattern gruphics,which prints lines and

patternedblocks.

Be aware,though,that addinggraphicelementsalwaysslowsup printing

withlaserprintem.

4.7.1 StartingRasterGraphics

Thefollowingstepsshouldbeperformed(intheordershown)whenprinting

rastergraphics:

1)Definethe resolution

2) Setthe orientationof thegraphicimage

3) Issuethe commandto startgraphics

4) Issuethecommandto setthecompressiontechnique(if any)of

the graphicaldata

5) Sendthe commandswhichtransferthe graphicsdata

6) Sendthecommandto endgraphics

Beforegraphicsare sentto theprinter,the resolutionmust be set. This is

achievedusingthe followingcommand:

<ESC>*t n R

wheren cantakeavalueof75, 100,150or 300.Thesevaluesrepresentthe

desiredvaluein dots/inch(dpi)of the printedgraphicimage.The default

,resolutionis75dpi.Anyfimtherresolutioncommandswillbeignoredbythe

printeruntila commandto endgraphicshasbeenreceived.

To set the orientationof the graphicimage,transmitthe followingcom-

mand:

<ESC>*r n F

WherencantakeavalueofeitherOor3.Wheren=O,rastergraphicsprinting

willtakeplaceinthelogicalpageorientation,andwhenn=3,rastergraphics

willbeprintedalongthewidthofthephysicalpage,~gardlessofthelogical

pageorientation.