In fact, I believe we should introduce a new term
Color Printing
Mono-Chrome Printing
Mono-Colorant Printing
B/W-Printing
This is much clearer
Glen
-----Original Message-----
From: ipp-bounces at pwg.org [mailto:ipp-bounces at pwg.org] On Behalf Of
Petrie, Glen
Sent: Friday, April 20, 2012 8:05 AM
To: Michael Sweet; William Wagner
Cc: ipp at pwg.org
Subject: RE: [IPP] WG Last Call - IPP Job and Printer Extensions - Set
3(JPS3)(April 9 through April 18, 2012)
Monochrome is defined as "the range of shades of a single Color to
white" and not a single colorant and not just black.
In the days when we have just black/white printers, monochrome came to
mean half-tone printing using the black colorant only; which is really
binary printing (one colorant and the white of the media) using halftone
technques to simulate the color "gray" (shading) versus true monochrome
printing that prints using various shades of the actual color gray.
Today, """"Black"""" monochrome printing is printing the color gray over
the range from black to white. Since gray is produced using all
colorants, it is processed-monochrome that is important.
Another common case of actually monochrome is Sepia. The color sepia
is not a single colorant but a single composite color (a combination of
rgb).
So if you want a definition using a single colorant, then this binary
printing using halftoning to simulation "shades" (intensity variations
of the colorant).
Glen
-----Original Message-----
From: ipp-bounces at pwg.org [mailto:ipp-bounces at pwg.org] On Behalf Of
Michael Sweet
Sent: Thursday, April 19, 2012 6:02 PM
To: William Wagner
Cc: ipp at pwg.org
Subject: Re: [IPP] WG Last Call - IPP Job and Printer Extensions - Set 3
(JPS3)(April 9 through April 18, 2012)
Bill,
We do, in fact, define "monochrome" as being 1 colorant, typically
black. A vendor might choose to implement an IPP Printer that uses blue
ink, for example, but I expect the mainstream usage to be black ink.
On Apr 19, 2012, at 5:55 PM, William Wagner wrote:
> Michael,
> My memory might be off, but although the distinction between
monochrome and
> process monochrome as referring to marking with a single colorant
versus
> obtaining that color from multiple colorants is right, I thought that
we
> used the term 'monochrome' rather than just 'black' to refer to
one-color
> printing, where that color was usually but not necessarily black. But
> perhaps it is an unimportant distinction.
> Thanks,
> Bill Wagner
>> -----Original Message-----
> From: ipp-bounces at pwg.org [mailto:ipp-bounces at pwg.org] On Behalf Of
Michael
> Sweet
> Sent: Thursday, April 19, 2012 8:12 PM
> To: James Cloos
> Cc: ipp at pwg.org> Subject: Re: [IPP] WG Last Call - IPP Job and Printer Extensions - Set
3
> (JPS3) (April 9 through April 18, 2012)
>> James,
>> On Apr 19, 2012, at 2:30 PM, James Cloos wrote:
>> Apologies for the stupid question, but I couldn't find an
explanation....
>>>> For a colour printer, what is the difference between monochrome and
>> process-monochome?
>>> monochrome is black using 1 color (black).
>> process-monochrome is black using many colors (typically black plus
varying
> amounts of cyan, magenta, and yellow, although it can also apply to
black
> from just cyan, magenta, and yellow).
>> _________________________________________________________
> Michael Sweet, Senior Printing System Engineer, PWG Chair
>>> --
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_________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair
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