Various sequences of character will cause this to happen. Up or down.) On all other HP printers for say 20 years everything is fine but with the printer mentioned above my font selection and 1/2 line feed are canceled. (My programs works like a typewriter and subscripts and superscripts are just a 1/2 space Also I set the line feed to be 1/2 a line feed. When my program begins it sends the esc sequence that selects the fonts. My program runs in DosBox and sends data to the printer by writing to the file TRASH789.PCL in the directory C:\SPOOL and the program printfile (downloaded from the internet) spools theįile to the printer. I choose these numbers so as not to interfere with other fonts. Everything was fine until the printer listed in the title. Now there are plenty of programs do to this but I have kept my current. Students a University of Pennsylvania and Princeton used my programs
I developed my own word processing and printing programs starting with the original IBM and epson dot matrix printer and then the HP Laserjet printers.
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