way other than the TIFF formatwill producevery strangeresults!Repeat sendinglines of graphicsdata, prefixed by the above command,until the wholeimagehas been transmitted.
To signal the end of graphicdata transmission,send the followingcom- mand:
<ESC> * r B
There are no parameters.The LaserPrinter4 is now in text mode.
4.7.2 Rulesand patterns
Patternsand lines are ease to do.
Print shops call lines of any thickness rules. A printed line in fact is a rectangularareawithone“skinny”dimension,fromoneto manydotsthick. We will use the word “rules”too, to avoidconfusionwith the linesused to measurepages.
You followthesethree stepswhen you use rule and patterngraphics:
1)Definethe dimensionsyou need.
2)Choosethe graphicspattern you want to fill in those dimen- sions.
3)Print the pattern.
Rememberto sendthe followingrule or patterncommandsin that order.
4.7.3Definingrule orpattern dimensions
Definingthedimensionsoftheareayouwantto filljust meansindicatingthe horizontalandverticalsizeofthepattcm,or therule’slengthandthickness. You can indicatedimensionsin eitherdotsor decipoints(tenthsof a point).
At 300dotsor 720decipointsto the inch,decipointmeasurementsaremore accurate. The printer converts decipointvalues into dots, using 2.4 de- cipoints to the dot. It rounds up fractions to the next integer. So 1225 decipointswouldworkoutto510.4dots,andthepnnterroundsthisupto511 dots.
Yourdimensioncommandsspecifyan area to the right and down fromthe currentprintposition.If youdefinean arealargerthanthepage,yourprinter willacceptthe command.It will,however,cutoff yourpatternor ruleat the boundariesof the page’sprintablearea.
85
