Printing 'white' = saving ink?

[di0nysus]

the above is true when printing Black on plain white paper, the printer doesn't 'create white ink' to print onto the white parts.


how about printing onto photographic paper?

[raptor84]

Umm you cant create "white" ink. While white light is made form mixing RGB white is just blank space on the paper. anything else is "added" to white to give you all your differnt shades.

[di0nysus]

can't create white ink? then if paper is non-white, and image has white...then how?

[raptor84]

then it will take the non white base? I know this is true for inkjets...

[sectional86]

use liquid paper~

[Del_CtrlnoAlt]

upon your request, i've forwarded it to the Canon R&D, they would be making a new Pixma printer, call Wixma...

Standard will come with 5 inks, using CMYKW, oppose to the CMYK, it will create better white. Another photographic printer featuring it is under development, and will be announced soon enough. It will feature a 7 ink system, CMYKW+PC&PM.

News will be announce on 3000-2-30

[Del_CtrlnoAlt]

Originally Posted by di0nysus can't create white ink? then if paper is non-white, and image has white...then how?

brudder... u have to treat white in this case as transparent...

[Nikonian Foo]

There is white ink.....but not for consumer printers...

[Neo]

Originally Posted by di0nysus the above is true when printing Black on plain white paper, the printer doesn't 'create white ink' to print onto the white parts. how about printing onto photographic paper?

I believe some Epson printers have something called gloss optimizers... basically pigment ink printers tend to be duller, so the areas between the printed and unprinted areas are uneven in terms of glossiness. So what Epson did was to add in this cartridge of transparant fluid called gloss optimizer to spray over the blank areas.

So now even if there's nothing in that vast expanse of white in the photo, you're still spraying "ink" onto it. Not a bad idea for increasing use of consumables!

[Ansel]

Originally Posted by di0nysus the above is true when printing Black on plain white paper, the printer doesn't 'create white ink' to print onto the white parts. how about printing onto photographic paper?

First part of your question you have answered yourself. When an inkjet printer wants white, it just doesn't print anything on the paper. It assumes the paper is white, or at least, almost white.

I believe the 2nd part of your question is regarding printing by those commercial lab printers such as Fuji Frontier machines. I understand the Frontiers work by RGB and not CMYK. That is, it is an additive system, with all colours combined (ie, RGB) produces white and no colour produces black. For your information, it doesn't use ink. It uses a laser to expose a light sensitive photographic paper with successive Red, Green and Blue light to achieve the full spectrum of colours. This paper is subsequently processed with chemicals to develop the image.

[slaam]

yah CMYK is a subtractive system
u learn in school that RGB is primary color and if you add all together you get white
its reverse in CYMK you minus all the colors then you get white.
if you minus all means dun use any ink.

[ortega]

so don't use non white paper
i think it is cheaper than "printing with white ink"

[di0nysus]

Originally Posted by Ansel That is, it is an additive system, with all colours combined (ie, RGB) produces white and no colour produces black. .

I think when one shines R/G/B light onto a surface, one will get white light. But when one mixes R/G/B inks together, one gets Black ink.



i think i'll just test print onto a CD, and use a wet dark coloured cloth and see if i can wipe off the white parts. If yes, then white ink is ejected!

[di0nysus]

Originally Posted by Del_CtrlnoAlt upon your request, i've forwarded it to the Canon R&D, they would be making a new Pixma printer, call Wixma... Standard will come with 5 inks, using CMYKW, oppose to the CMYK, it will create better white. Another photographic printer featuring it is under development, and will be announced soon enough. It will feature a 7 ink system, CMYKW+PC&PM. News will be announce on 3000-2-30

DCA

[Del_CtrlnoAlt]

Originally Posted by di0nysus I think when one shines R/G/B light onto a surface, one will get white light. But when one mixes R/G/B inks together, one gets Black ink. i think i'll just test print onto a CD, and use a wet dark coloured cloth and see if i can wipe off the white parts. If yes, then white ink is ejected!

I think U are right... thats the 'printing' method...

suppose medium is only paper... we pour red, green, blue ink down, it will be black lor...

[Neo]

Originally Posted by Del_CtrlnoAlt I think U are right... thats the 'printing' method... suppose medium is only paper... we pour red, green, blue ink down, it will be black lor...

I think you can use RGB inks... you'd have to use CYM inks right? Even that... you can get good blacks... cuz CYM combined will theorectically get black, but impurities in the ink means that you'll end up with muddy blacks. So you'll still need K to get blacker black with CMY inks.

[Watcher]

Originally Posted by Neo I think you can use RGB inks... you'd have to use CYM inks right? Even that... you can get good blacks... cuz CYM combined will theorectically get black, but impurities in the ink means that you'll end up with muddy blacks. So you'll still need K to get blacker black with CMY inks.

Cheaper as well, and your paper can tahan the amount of inks going on the paper.

[yanyewkay]

i think what you are asking is how to make an object "look white" on a non white paper? something like newspaper is grey while the photos do look colour correct and 'white' even though they did not use white ink?

on the lighter note, printing white does save ink. I did that before. in fact it saved so much ink I could print almost 1 ream of white paper full of text with white fonts! and the ink didn't even budge a drop! printing seems to be faster as well the print head didn't move as well.. weird..

[Del_CtrlnoAlt]

Originally Posted by yanyewkay i think what you are asking is how to make an object "look white" on a non white paper? something like newspaper is grey while the photos do look colour correct and 'white' even though they did not use white ink? on the lighter note, printing white does save ink. I did that before. in fact it saved so much ink I could print almost 1 ream of white paper full of text with white fonts! and the ink didn't even budge a drop! printing seems to be faster as well the print head didn't move as well.. weird..

OH REALLY?!?!

Dang... my printer is faulty then... cos when i used those fonts, my printer's print head goes to the centre... guess have to send it to the service centre....