Advanced B&W in RIPs ?
Advanced B&W in RIPs ?
- Subject: Advanced B&W in RIPs ?
- From: Ernst Dinkla <email@hidden>
- Date: Tue, 21 Jun 2005 12:49:22 +0200
With the introduction of the Epson K3 inkjet printers it is likely that
B&W inkjet printing gets a wider base and a better general quality.Not
that familiar with all the RIPs around I wonder what is already
available in (Postscript) RIPs to enhance the quality of B&W printing
from greyscale files. At first I expected that the Epson Advanced B&W
mode could partly rely on the CM parts already available in the driver.
It probably isn't that advanced. But it could still be ahead of what is
used in most PS RIPs.
With the Kk printers like the Epson 9600 the greyscale images will use
the linearised Kk channel or channels in all RIPs that support the 9600.
Is that correct ? Or are there still RIPs around like the Scanvec
Amiable was 3 months ago that had no k ink at all in the output of the
9600 ?
Is there any CM done on the black channel in greyscale printing in any
RIP or is the total black channel neutralised (with cm ink for the
Ultrachrome Epsons) for greyscale printing in any RIP?
While greyscale data has dotgain or gamma assigned is there a kind of
perceptual correction extra done in the RIP for correct perceptual
printing of the greyscale with K, Kk inks by any RIP ? Or is it
considered to be good enough with the attached information and the
linearised black channel ? This isn't about a WYSIWYG issue but how a
greyscale fits perceptually best between a given Dmax and paper white.
I'm very naive on this aspect so it may be a very stupid question and an
issue that has been solved long ago.
Any idea whether this B&W printing part in RIPs will be changing with
the new K3 drivers ? A Kkk partioning will be the obvious change but is
there more to expect ? If there's no real change to be expected will it
then be wiser for designers to use neutral RGB images to get neutral B&W
prints (and of course duotone RGB images to get toned B&W prints)
instead of using greyscale images at all in documents that will be
printed on K3 inkjets ? CM control + strong black generation + Kkk inks
will heal much of what wasn't possible in color printing of B&W before.
That still leaves some "warm" surprises for designers not aware of the
new limits in greyscale reproduction.
Ernst
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden