Well if you're using a GDI or Quickdraw print driver, you want to send it RGB data for it's eventual conversion to CMYK plus whatever other colorants. Chances are, you want to be sending this printer RGB data. Andrew Rodney http://www.digitaldog.net/ <http://www.digitaldog.net/>
On Jan 8, 2020, at 3:12 PM, PPS Lists via colorsync-users <colorsync-users@lists.apple.com> wrote:
I used to know how to do this but it has been so long since I have needed to I have forgotten how.
I need to determine if the print pipeline for a certain laser printer is RGB or CMYK. I used to know how to spin up a Photoshop file in a certain way and send to print.
IIRC, the procedure was along the lines of make a CMYK document, and create a black square of equal parts of Cyan, Magenta and Yellow. Then slap a smaller 100% black square on top of the CMY square and send to print. Something like that.
Does anyone know the correct steps?
Thank you.