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I got perfectly NEUTRAL BW prints with QuadTone RIP ! :-)

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Disregard my earlier request--I figured it out. I did a couple of prints, and had some questions. The print I made (50 warm, 50 cool) was very similar to using "Black Only" (see http://www.cjcom.net/articles/digiprn3.htm ), however the "graininess" with the Black only was not evident. I did notice a pronounced warm cast (with Epson inks), approaching a slight sepia. In earlier tests, straight B&W printing on the 2200 revealed a print with a magenta cast. I reduced the magenta through the printing process, and got what I thought were very neutral prints with -7 to -10 magenta. So, my questions: a) Have others experienced such a warm cast to Epson inks (on Epson Premium Semi-gloss)? and b) have others used the printer color balance to adjust B&W prints, and what were their results?

Thanks.
 
I think what you are seeing on Epson Premium Semigloss is bronzing. The Epson Ultrachrome inks (with the Photo black ink) on RC papers suffer from this bronzing problem and it is particularly noticeable when printing grayscale images. If you used the profiles for RC papers (either the OFB or semigloss profiles) you should not be getting a "warm tone" with a 50:50 blend of warm:cool profiles. The prints should have a near neutral tone, but as noted above bronzing will be apparent when the print is viewed at an angle to the light source. Stick to using matte papers for the highest quality.
HankAK said:
Disregard my earlier request--I figured it out. I did a couple of
prints, and had some questions. The print I made (50 warm, 50
cool) was very similar to using "Black Only" (see
http://www.cjcom.net/articles/digiprn3.htm ), however the
"graininess" with the Black only was not evident. I did notice a
pronounced warm cast (with Epson inks), approaching a slight sepia.
In earlier tests, straight B&W printing on the 2200 revealed a
print with a magenta cast. I reduced the magenta through the
printing process, and got what I thought were very neutral prints
with -7 to -10 magenta. So, my questions: a) Have others
experienced such a warm cast to Epson inks (on Epson Premium
Semi-gloss)? and b) have others used the printer color balance to
adjust B&W prints, and what were their results?

Thanks.
Click to expand...
 
Carl,

Thanks for the help. I'll try some matte paper. I think I'll keep tinkering with the gloss/semi as I have some of that around (not much of a selection in rural Alaska).
 
I have not seen any RIPs for the R800. However, this is not so unusual as it often takes a year or more from the time a new printer appears for TIP support to come on line. It basically means creating a new driver for the printer, so it's not a simple matter.

My guess is that once the large-format version of the R800 comes out and more people start using them, there will be some sort of RIP for these printers.

-Michael
craig said:
digital ed said:
First prints with this program were fantastic with no green in the
grays.
However, the install .bat files did not properly install correctly
in my computer. I had to read the bats and decipher what was to be
transferred where. Once I did that it worked perfectly.
I can go back to printing some B&W files I had given up on.

Best regards,

Ed
Click to expand...
--
Click to expand...
 
I´m a little confused with the workflow. What happen with interpolation???

I know that if a print a color image, qimage does that. . But if I send the image to quadtone rip then how does the risizing???? Quadton rip???? Do I have to do it before sending the picture????
Thanks in advance your your response
 
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