RIP is an acronym for Raster Image Processor. Without technicalities
(which I am not qualified to go into anyway...), the important aspect
here is that it is a very capable printer driver that can control the
amounts of ink used for a specific tone very closely, and thus follow a
colour profile very closely. The one I was referring to (QTR) controls
B/W printing by stopping the printer from using any yellow ink at all
(normally an inkljet makes middle grey tones by mixing yellow, magenta,
and cyan inks; since the yellow ink looks different under daylight and
artificial light, such a print will display strange colour shifts in
different lighting, which is metamerism). QTR uses black and grey inks
only, adjusting warmth with minute "splashes" of magenta or cyan.
Of course a full-fledged RIP does a lot more than this, but again this
would lead too far. You can Google for "raster image processor" (don´t
Google for "rip"; the result will drive you nuts...).
Well, wasn´t that a mouthful for Christmas Day? I feel I´ve just
deserved some Stilton and port by now; I wish all list members some
similar way to round off the day..
Per Öfverbeck
http://foto.ofverbeck.se
2004-12-25 kl. 18.44 skrev Tim Holmes (W8TAH):
I hate to sound like the list idiot, but who or what is a rip?
I gather that it is some kind of printer definition file, but thats
about all I know
TIM HOLMES
Fine Light Photography
