🚀 go-pugleaf

ajdh@bnr.co.uk (Andrew J D Hurley) wrote:

>In article <1992Dec11.182310.2@condor> blacka@logica.co.uk writes:
>>However, I discovered that the 3.1 driver does not support
>>colour in resolutions above 180x180.  I appreciate that high
>>resolution colour printing is not for those in a hurry, but
>>on occasions one is prepared  to wait.

>I am fairly sure I have managed 360x180 on my Swift24 since RO3.1
>but I could be wrong. If the printer uses interlace to get the 360x360
>(which the average 24 pin DM will do) then it is definately not a good
>idea to try colour at this resolution. The yellow part of the ribbon (and
>the others to a lesser extent) get extremely mucky in no time at all when
>you play around with interlace. Your ribbon will be all but useless after
>a page of full colour (eg. a scanned sprite) and they are not cheap
>to replace that often.

I'm glad to see someone agrees with me about interlaced colour ruining the
ribbon. Andrew has also pointed out something I forgot to mention, which is
that some of the newer 24 pin dot matrix printers can do 360 by 180 DPI
without interlacing. I didn't write any printer definition files which did
this since I didn't have any printers that could do it (I'm not sure that
there were any around at the time either). The point is that if 360 by 180
is non-interlaced then it's OK to use colour with it, although you may still
find that 180 by 180 will look better on some pictures. Turning a 360 by 180
interlaced definition into a non-interlaced one with !PrintEdit is
simplicity itself - just change the "X interlace:" field from 1 to 0. Make
sure your printer can actually print adjacent dots at 360 horizontal before
doing this. If it can't your printout will still look basically OK, but it
will be missing roughly every other horizontal pixel since the printer just
throws the unprintable dots away and you'll effectively get a 180 by 180
printout with some of the fine detail missing. Printers are quirky beasts at
the best of times.

Owen.