laser-lovers@uw-beaver (12/15/84)
From: cornell!vax135!ulysses!cbosgd!ukma!david@uw-beaver.arpa (David Herron, NPR Lover) >From: nunn@NBS-VMS >Has anyone received an LN01 Programmer Reference Manual (shipped with >the LN01) with an Appendix B? The section on "Font Record" refers to >appendix B but there isn't anything beyond Appendix A. >Appendix B is supposed to describe how the binary data is encoded >into sixels. In the absense of Appendix B, does anyone know how >the binary data is encoded into sixels? > Thanks, > John Nunn <nunn@nbs-vms> Our copy of the manual has an Appendix B. We have had our machine for over a year and also have a newer version of the manual, it doesn't have as much information as our older version. And yes, it does tell how to encode binary data into sixels. Unfortunately it doesn't also tell the format of the font record. (i.e. We know what to wrap around a font record, what format to put the data into for the machine to read it, but don't know the format for the data). I doubt you will ever get documentation on how to download fonts into the machine. Xerox doesn't want that information to be distributed around for some reason, they see it as propietary. They still have the same attitude with their own printers. One question I asked specifically of Xerox about the 2700 II was if they would give us that information. Suffice to say that we aren't buying one of their printers and that we are getting rid of our LN01. The encoding is a straight forward mapping of 3 bytes into 4 bytes, 6 bits at a time, and 0x3f added to each byte to make it printable. ----------------------------------------- David Herron; ARPA-> "ukma!david"@ANL-MCS (Note the quote marks.) UUCP-> unmvax -----------\ UUCP-> research ----------\_______ {anlams,anl-mcs} --\ UUCP-> boulder -----------/ >-!ukma!david UUCP-> decvax!ucbvax ----/ cbosgd!hasmed!qusavx --/ (The usual warning about having no opinions). "I read banned books."