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2013-01-25 by remononaz1
When printing using printer controls, and without an acv curve, how does the printer know to print from the various the shades of gray in a monotone ink set, for example C-6? What keeps the printer from just printing from the black cartridge only?
2013-01-26 by Paul Roark
remononaz1 <homershannon@...> wrote: > ** > > > When printing using printer controls, and without an acv curve, how does > the printer know to print from the various the shades of gray in a monotone > ink set, for example C-6? > > What keeps the printer from just printing from the black cartridge only? > > __ > The printer "assumes" there is the OEM color ink in it. So, if a neutral image is sent to it, it'll combine the C, M and Y colors as it assumes is needed to make a neutral tone. This works quite well if, and only if, the B&W inkset was made in a way to be compatible with the Epson driver, like Eboni/Carbon-6. The Epson driver ink distribution is not optimal for an inkset like Eb/C-6 in that it spreads the 2% Y across the entire print, aside from the 100% black values, with much less than optimal at the beginning of the print and too much in the shadows. However, particularly with the 1.5 pl drop size, the LC and LM are light enough that the print will be smooth throughout. The Epson LM-M and LC-C crossovers are excellent. The color to black crossover is less than ideal, but it usually works OK. Most current printers do not support a black only mode. And the few that do (WorkForce only?) require a special setting in the driver to select that approach. Paul www.PaulRoark.com [Non-text portions of this message have been removed]
2013-01-26 by remononaz1
Thank you for that, Paul. I won't argue that it works - it does, very well. But, I've always wondered exactly how! --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Paul Roark wrote:
> > remononaz1 wrote: > > > ** > > > > > > When printing using printer controls, and without an acv curve, how does > > the printer know to print from the various the shades of gray in a monotone > > ink set, for example C-6? > > > > What keeps the printer from just printing from the black cartridge only? > > > > __ > > > The printer "assumes" there is the OEM color ink in it. So, if a neutral > image is sent to it, it'll combine the C, M and Y colors as it assumes is > needed to make a neutral tone. This works quite well if, and only if, the > B&W inkset was made in a way to be compatible with the Epson driver, like > Eboni/Carbon-6. The Epson driver ink distribution is not optimal for an > inkset like Eb/C-6 in that it spreads the 2% Y across the entire print, > aside from the 100% black values, with much less than optimal at the > beginning of the print and too much in the shadows. However, particularly > with the 1.5 pl drop size, the LC and LM are light enough that the print > will be smooth throughout. The Epson LM-M and LC-C crossovers are > excellent. The color to black crossover is less than ideal, but it usually > works OK. > > Most current printers do not support a black only mode. And the few that > do (WorkForce only?) require a special setting in the driver to select that > approach. > > Paul > www.PaulRoark.com > > > [Non-text portions of this message have been removed] >
2013-01-29 by John
Paul - Thanks so much for the explanation. Would you consider adding this to your papers (such as the Epson 1430 & Eboni-6) ? I was puzzled how simply using the driver would work, now it's crystal clear. Thanks!!! John P --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Paul Roark wrote:
> > remononaz1 wrote: > > > ** > > > > > > When printing using printer controls, and without an acv curve, how does > > the printer know to print from the various the shades of gray in a monotone > > ink set, for example C-6? > > > > What keeps the printer from just printing from the black cartridge only? > > > > __ > > > The printer "assumes" there is the OEM color ink in it. So, if a neutral > image is sent to it, it'll combine the C, M and Y colors as it assumes is > needed to make a neutral tone. This works quite well if, and only if, the > B&W inkset was made in a way to be compatible with the Epson driver, like > Eboni/Carbon-6. The Epson driver ink distribution is not optimal for an > inkset like Eb/C-6 in that it spreads the 2% Y across the entire print, > aside from the 100% black values, with much less than optimal at the > beginning of the print and too much in the shadows. However, particularly > with the 1.5 pl drop size, the LC and LM are light enough that the print > will be smooth throughout. The Epson LM-M and LC-C crossovers are > excellent. The color to black crossover is less than ideal, but it usually > works OK. > > Most current printers do not support a black only mode. And the few that > do (WorkForce only?) require a special setting in the driver to select that > approach. > > Paul > www.PaulRoark.com > > > [Non-text portions of this message have been removed] >