Digital BW, The Print

Who developed the idea of using black or grey inks in each of the six ink 
cartridge slots?  I think it has made using my R220 so easy for black and 
white printing.  I think it is an idea that could be patented.

Frank Vincent

In a message dated 3/14/06 4:27:43 PM, hollidaypr@... writes:


> Who developed the idea of using black or grey inks in each of the six ink
> cartridge slots?  I think it has made using my R220 so easy for black and
> white printing.  I think it is an idea that could be patented.
> 

Its a little late for that; there's this concept of "prior art"... and a one 
year period from release to last date for patent application, which has 
definately expired.

C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
CDTobie@...
www.colorvision.com


[Non-text portions of this message have been removed]

CDTobie@... wrote:
> In a message dated 3/14/06 4:27:43 PM, hollidaypr@... writes:
> 
> 
>> Who developed the idea of using black or grey inks in each of the six ink
>> cartridge slots?  I think it has made using my R220 so easy for black and
>> white printing.  I think it is an idea that could be patented.
>>
> 
> Its a little late for that; there's this concept of "prior art"... and a one 
> year period from release to last date for patent application, which has 
> definately expired.
> 
> C. David Tobie

Given the practice of using several greys in claire obscure 
intaglio, the use of several grey inks in Chromolithography 
printing since Senefelder there shouldn't be reason to grant a 
patent.

Given the total weirdness of today's USA patent system you 
probably can get seven patents for seven varieties of quad 
printing, starting with BO printing with one head. Prior art 
including detailed descriptions in mailing lists like this 
isn't what the US patent office takes in consideration. What 
it actually controls is unknown to mankind.

Ernst
                    --
           Ernst Dinkla


www.pigment-print.com
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