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Article #508

Re: High res Colour Printing in RISC OS 3.1

#508
From: blacka
Date: Mon, 21 Dec 1992 23:41
35 lines
1740 bytes
As the instigator of this discussion, I would like to thank
everyone who's replied to it.  It has been an interesting
discussion, and I have learnt a lot about the subject.
I have  sucessfully set up the control codes for 360x180 
colour printing.  I accept that it takes a long time and
only use if when I feel it is needed.

A couple of points remain however :

- Owen is concerned about the ribbon becoming dirty 
  because of overprinting.  I would guess this is only a 
  problem with Y-interlace - for X interlace the driver
  does the two yellow passes, etc ending with black.  Am
  I correct here.

- I am confused as to whether and XB24 printer really prints
  to   360 resolution (or whether it skips a dot immediately
  after another dot).

  My XB24 manual is contradictory on this point.   In the 
  table of control codes (p58 if anyone has a copy) it 
  gives the impression that you can print every dot, whereas
  the spec on page 106 claims "Adjacacent dots not printable
  in these modes".   I suspect the latter is the case - 
  does anyone have any hard evidence.

Final point - I have noticed that the quality of Outline
Font printout is better under RISCOS3.1 than 2.  Previously
I found 180x180 was poor, 360x360 was needed.  Now I  find
that 180x180 is acceptable, and 360x180 when I need high
quality.  Could Owen shed any light on what has  be done
to obtain this  improvent 


Andrew Black
Technical Details
Message-ID: <1992Dec21.234158.22@condor>
Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!logica!blacka
References: <ARM200-921218145909-63C24CA9*@MHS>

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Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!logica!blacka
From: blacka@logica.co.uk
Newsgroups: comp.sys.acorn.tech
Subject: Re: High res Colour Printing in RISC OS 3.1
Message-ID: <1992Dec21.234158.22@condor>
Date: 21 Dec 92 23:41:58 GMT
References: <ARM200-921218145909-63C24CA9*@MHS>
Lines: 35