How to use the CMYK color space in PCL?

[thanhhahuy]

Hi all
I am using PCL 6.0 to design a test page which will be printed on a
CMYK color laser printer.

My objective is that I need to fill a rectangle box with a CMYK color:
128,0,0,0 (only cyan color appears on the test page).

The problem is that as far as I know PCL only allows to work on the
RGB color space: once the test page is designed and printed, the data
is sent to the printer and a certain unit inside the printer will
automatically convert this RGB to the specific CMYK color.

If my thought is correct, does it mean that I cannot do my desired
task until I know exactly the formula the specific printer which I am
working on uses to convert a RGB color to its CMYK color?


Is there any solution for my case? Plz help the PCL experts!!!!!!!!


Thanks

 

[The Natural Philosopher]

Hi all
I am using PCL 6.0 to design a test page which will be printed on a
CMYK color laser printer.

My objective is that I need to fill a rectangle box with a CMYK color:
128,0,0,0 (only cyan color appears on the test page).

The problem is that as far as I know PCL only allows to work on the
RGB color space: once the test page is designed and printed, the data
is sent to the printer and a certain unit inside the printer will
automatically convert this RGB to the specific CMYK color.

If my thought is correct, does it mean that I cannot do my desired
task until I know exactly the formula the specific printer which I am
working on uses to convert a RGB color to its CMYK color?


Is there any solution for my case? Plz help the PCL experts!!!!!!!!

As far as I know Cyan is simply the absence of green.
Magenta is the absence of green
and yellow is the absence of blue.

So any TWO colors in the RGB 'plane' will select but one ink from the
CMY plane. With black added as intensity drops below 100%.

 

[Arthur Entlich]

I'm sure this was just an error when typing...

Cyan is the absence of red.

The other two are correct.

Art

The Natural Philosopher wrote: