CompuServe Thread

Which Laser Printer?

8 messages in this thread
#31162From: Allen MittsAug 6, 1991 4:51 PM
John, I've got my Amiga and Mac hooked up to a brand new QMS-PS 410 and I really like it. It's not as quiet as my DeskJet Plus, but … 🙂 Just found out that a Mac program called "Smart Art" won't work with it (sigh). Smart Art needs a subset of Postscript called "bitsback" and non of the new printers have that. If you are interested in running that program (on your Mac) you may want to look at an old (slightly) Postscript printer. In terms of handling my Amiga and Mac together, I've had no problems at all. Only joys so far (outside of Smart Art). Hope that helps… Oh… the 410 has 1 serial, 1 parallel and 1 Apple interface. So, you would have to deal with that in order to hook all three (IBM, Mac, Amiga). You might want to consider extra memory so that you can increase its input buffer memory to hold jobs from all three simultaniously (comes standard with 2 megs). Regards, Allen
#31176From: SyndesisAug 6, 1991 8:38 PM
I've never heard of "bitsback", and it's not in the Adobe Red Book. Don't know what you're talking about.
#31207From: Malcolm O'BrienAug 7, 1991 2:10 AM
John, BitsBack is a strange bird. You send PS to the printer serially, it interprets the PS, and sends the raster bits back to the computer! Your program can then put the result of your PS onscreen. I believe it's in old Apple LaserWriters (and probably nowhere else). Malcolm
#31253From: SyndesisAug 7, 1991 6:25 PM
From the name, that's what I guessed it would do. 🙂 I don't plan on relying on non-standard-isms like that. Not that I wouldn't love to hear about such a creature; I know I once tried to find a way to do just that.
#31306From: Malcolm O'BrienAug 8, 1991 10:00 AM
John, I think bitsback was probably there initially when Macs had much less memory than they do today. Now most folks have enough memory for a PS interpreter and a buffer. It makes more sense to do it that way (according to the guy in the next cubicle who wants to use the printer). 🙂 Malcolm
#31327From: SyndesisAug 8, 1991 2:11 PM
I'm surprised to hear of it – I always thought that if Don Lancaster hadn't heard of it, then it couldn't exist, and I don't remember him ever talking about this technique.
#31343From: Malcolm O'BrienAug 8, 1991 10:10 PM
John, I think I saw mention made of it on Adobe forum. But its absence from the Red Book is evidence of how uncommon it is. Just a little something hidden away for old Mac/LW users. SmartArt may be the only application that uses it. Malcolm
#31408From: Allen MittsAug 9, 1991 7:22 PM
John, Apparantly, 'bitsback' was a command that left out of the current adobe protocol. I've only encountered one program that requires its use (Smart Art for the Mac). Everything seems to run very well and I'm very happy with the QMS-PS 410. Regards, Allen