RGThe Star LaserPrinter 4111offers rastergraphics (sometimes called “bit-
mapped graphics”), which specify each dot in agraphics pattern.
Be aware, though, that adding graphic elements always slows up printing
with laser printers.
Thefollowing steps shouldbe performed(in the ordershown) whenprinting
raster graphics:
1)Definethe resolution
2) Set the orientation of the graphic image
3) Issue the command to startgraphics
4) Issue the command to set the compression technique (if any) of
the graphical data
5) Send the commands which transfer the graphics data
6) Send the command to end graphics.
DrBefore graphics are sent to the printer, the resolution must be set. This is
achieved using the following command:
<ESC> *t77R
Ifthe value ofnis greaterthan 150,the resolutionof thefinal graphicsimage
willbe 300 dots per inch (dpi); if nisfrom 101to 150, theresolution will be
150dpi; ‘ifnisfrom 76 to 100,the resolution will be 100 dpi;and if nis 75
or less, the resolution will be 75 dpi. The default resolution is 75 dots per
inch. After graphics have started, the printer will ignore any resolution
command until itreceives the command to end graphics.
o g iToset theorientation ofthegraphic image, transmitthe followingcommand:
<ESC> *rnF
where ncan take avalue of either Oor 3. When the value of nis O,raster
graphicsprinting willtakeplace in thelogical pageorientation,and when the
valueof nis3, raster graphics will be printed along the width of the physical
page, regardless of the logicalpage orientation.
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