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- Xref: sparky comp.sys.hp:8726 comp.os.vms:12951 comp.periphs.printers:2263
- Path: sparky!uunet!gatech!rpi!usc!news.bbn.com!bbn.com!pdsmith
- From: pdsmith@bbn.com (Peter D. Smith)
- Newsgroups: comp.sys.hp,comp.os.vms,comp.periphs.printers
- Subject: Re: PaintJet
- Date: 30 Jul 1992 15:58:59 GMT
- Organization: Bolt Beranek and Newman Inc., Cambridge MA
- Lines: 32
- Message-ID: <l7g4e3INNsud@news.bbn.com>
- References: <1992Jul30.093631.22736@newsgate.sps.mot.com>
- Reply-To: pdsmith@spca.bbn.com (Peter D. Smith)
- NNTP-Posting-Host: bbn.com
-
- In article <1992Jul30.093631.22736@newsgate.sps.mot.com> bell@ekbext.sps.mot.com writes:
- >A recently delivered HP 9000/382 came with a PaintJet printer, which has been
- >sited in out office area, rather than in a clean area, which is isn't praticable.
- >I was advised that this beast could be sited on a DEC portserver, and the
- >multinet package used so that anyone on a vax,hp or sun on the network would make
- >use of it. All was fine with text files which are sent to it, but raster images
- >are proving tricky. Taking the example of a graph created by BBN's RS/1, the
- >printer spews some nonsense, and then about half the graph, and then some more
- >nonsense.
-
- Well, actually, I wrote that driver.
-
- The HP PaintJet, like all HP printers, uses a strictly binary bitmap. This
- causes all sorts of headaches since a bitmap can contain up to 750,000 bytes.
- The likelyhood that those bytes will include XON, XOF, EOF, etc is quite
- high (*). For this reason, the Paintjet really works much better on a
- parallel port connected to a PC (which is, after all, where the market is).
-
- I'm afraid that getting the printer to work over your network may be quite
- difficult (assuming that it can be done at all).
-
- You may wish to try one of the DEC LJ250s -- it's the same printer except
- that it uses DEC's SIXEL graphics which work pretty well over serial lines.
-
-
-
- Peter D. Smith
- RS/1 Device Support
-
-
- (*) According to RS/1, the chance that a random binary file 10,000 bytes long
- will not contain any particular byte is (255/256)**10000 ~= 1e-17
-