[comp.lang.postscript] problems with talaris laser printer?

davis@pacific.mps.ohio-state.edu ("John E. Davis") (01/24/91)

Hi,

    Are there any well known problems with a Talaris laserprinter's emulation
of postscript?  I am sorry but I do not have the particular model but I assume
it is the top of the line.  We have it connected to our VAX/VMS 8650 as our
default system laser printer.  Some of our postscript programs which run fine
on an apple laserwriter crash the talaris from time to time.

Thanks,
--
John

  bitnet: davis@ohstpy
internet: davis@pacific.mps.ohio-state.edu

rli@bode.usc.edu (Li) (01/25/91)

Not only that, it is extremly slow too. At least 10 times
slower than a Aplle LW. Remember that Talaris is sort of
production type printer and is suppose to print very fast.

I would say that it effectively does not work.

li

herb@blender.uucp (Herb Peyerl) (01/30/91)

We tried out a Talaris XT2492 for about a month.. The Xerox people were
particularly annoying but we ended up having to get the source for the
Talaris ethernet driver from Talaris and porting the thing to the Apollo.
The port was fairly easy and it only took a few days to get the thing 
working.  However, as others have mentioned, TeX output was incredibly
slow and once it did produce output it wasn't consistent with our 
QMS 810+ (ie: Font substitutions).  I spoke with the people at Talaris
about the speed of the XT2492 and TeX output to which they mentioned 
that they've written a dvi2excl driver which speeds it up incredibly.  I
never bothered trying it out since it seemed sort of stupid to me to have
to run an EXCL driver to bypass the postscript for one application.  Other
applications we've tried are PCB Layouts... One of them was a 5.6MB
postscript file which the printer refused to print.  Our QMS810+ didn't
have too much of a problem with it...  In terms of speed, we thought the
Talaris fell into the "Ridiculously slow" category... 

We ended up returning the Talaris and investing in a DEC PS20 which 
presently boots off our Vax and gets stuff from it via Decnet.  Then
we have a DecStation 3100 that acts as an lpd gateway to it as well
so we can print to it from our TCP/IP hosts.  In the meantime, I've
written a prf->lpd driver for the Apollo so the whole thing looks 
transparent.  The same 5.6MB file that wouldn't print on the Talaris
prints on the PS20 in about 45 minutes which is about as long as it
takes for our QMS 810+... We had a slight problem with TeX in that
dvi2ps puts "Palatino" fonts in the header which the PS20 doesn't
like... We've changed those to "Times" and it's fine... 


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ralph@uhheph.phys.hawaii.edu (Ralph Becker-Szendy) (02/04/91)

In article <DAVIS.91Jan23131911@pacific.mps.ohio-state.edu> davis@pacific.mps.ohio-state.edu  (John E. Davis) writes:
>    Are there any well known problems with a Talaris laserprinter's emulation
>of postscript?  I am sorry but I do not have the particular model but I assume
>it is the top of the line.  We have it connected to our VAX/VMS 8650 as our
>default system laser printer.  Some of our postscript programs which run fine
>on an apple laserwriter crash the talaris from time to time.

And <rli@bode.usc.edu (Li)> replies:
>Not only that, it is extremly slow too. At least 10 times
>slower than a Aplle LW. Remember that Talaris is sort of
>production type printer and is suppose to print very fast.
> I would say that it effectively does not work.

Agree. We have a Talaris 1590 with the Talaris PSI cartridge (their PostScript
interpreter). It is ridiculously slow. TeX output is a few minutes per page. 
Even simple graphics (just lines, only a handful macros defined) takes half an
hour per page (with say several hundred line segments a page). 

Also the postscript interpreter is very unreliable. When I set up DVIPS to use
more than 200000 bytes os memory (the printer says it has a megabyte) the page
will not print, it gets a "Requirements for this page exceeded memory 
capacity". Graphics with several thousand line segments per page does the 
same. When downloading the standard Adobe ERROR.PS (to print errors instead of
showing them on the front panel), many errors will not print, instead they 
reboot the printer. If the host is still sending data while that happens, the
printer will come up in its default mode (which is EXCL, not postscript in our
case) and start dumping page-after-page of postscript source.

Lastly the print quality is very poor, every large black area gets washed out 
(large as in 12pt boldface font). After repeated complaints Talaris claims
that this is a non-fixable peculiarity of the 15ppm Ricoh engine they use.

At this point I have completely given up on the Talaris 1590 as a postscript
printer, and use either a Apple LW or the DEC LPS40 (in the computer center). 

-- 
Ralph Becker-Szendy                          UHHEPG=24742::RALPH (HEPNet,SPAN)
University of Hawaii                              RALPH@UHHEPG.PHYS.HAWAII.EDU
High Energy Physics Group                                  RALPH@UHHEPG.BITNET
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