johns@tybalt.caltech.edu (John Salmon) (09/18/87)
I am having trouble using the standard GF fonts with a TI omnilaser. I have been told that the problem is that the fonts that are normally distributed are designed for an Apple Laserwriter, which smudges pixels considerably, and hence look bad on a 'cleaner' output device. Can anyone confirm or deny this? Does anyone have a set of Computer Modern fonts (either gf or pxl), that look nice on the TI Omnilaser? Thanks, John Salmon (johns@tybalt.caltech.edu)
ken@cs.rochester.edu (Ken Yap) (09/18/87)
|I am having trouble using the standard GF fonts with |a TI omnilaser. I have been told that the problem is |that the fonts that are normally distributed are |designed for an Apple Laserwriter, which smudges |pixels considerably, and hence look bad on a 'cleaner' |output device. Can anyone confirm or deny this? |Does anyone have a set of Computer Modern fonts |(either gf or pxl), that look nice on the TI Omnilaser? The correct explaination is that the Ommilaser has a Write-White engine as compared to the LW, which has a Write-Black engine. This means the white areas "bleed" into the black of the "ink". As a result, characters look "skinnier". You don't mention what system you run TeX on. One solution is to generate a set of fonts tuned for the Ommilaser with METAFONT. Another (I've heard) is to get fonts from TI in ROM. By the way, why are you using gf or pxl fonts? Pk is more compact than either. Ken
paver@milano.UUCP (09/19/87)
The Omnilasers use a Ricoh "write-write" engine while the Laserwriter uses a Canon "write-black" engine. You will need fonts that are optimized for the Ricoh engine. I think they exist, but can't remember who has them. If you can get a copy of the latest TUG (TeX Users Group) Newsletter, there's an article that talks about fonts and laser printers. There's also a table that shows who has done fonts for the various laser printer engines. TI is not the the only vendor using the Ricoh engine. I believe QMS and Talaris are using it also. I have been told that "write-black" engines create slightly oversized pixels whereas "write-white" engines create slightly undersized pixels. I've noticed that half-tone patterns with few pixels look "OK" on the Laserwriter, but are very washed-out or even invisible on the Omnilaser. -- ------------------------------------------------------------- Bob Paver ----> paver@mcc.arpa OR ut-sally!im4u!milano!paver Microelectronics and Computer Technology Corp (MCC) 9430 Research Blvd Austin, Texas 78759 (512) 834-3316