Q - Can I make an ICC profile using i1 Match for printing B&W photos on a color printer?
A - To print black-and-white (B&W) images on a color printer, you can create an RGB or CMYK ICC profile. The main concern is reducing color casts in images, as grays are highly sensitive to casts. Two techniques are described below. Use these if you want to (1) print B&W images that are already in grayscale mode, or (2) to print color images as B&W. When printing the above to an Epson or other printer that does not have perfectly neutral K ink, a slight color cast may still be present.
Printing Color Images in BW
REDUCING COLOR IN THE PROFILE
This option is useful for printing images that are already in grayscale mode. To reduce the color cast, you can select a printer option that uses high GCR levels and maximum black, such as the "Laser Printer" setting (even if making an Inkjet profile). This profile can be used for printing images that are already in Grayscale mode (e.g., convert color image in Photoshop to Grayscale). GCR reduces CMY colors where they add up to gray, thus reducing the opportunity for a color cast to form.
EDITING OUT THE COLOR
You can print color photos in B&W on a color printer by editing the color out of the profile. Use the Profile Editor module in i1 Match 3.3 and higher:
A profile with the color edited out, as described above, can be used to print Grayscale or color photos. Color photos will have all of the saturation removed and thus print as Grayscale.
GRAYSCALE CONVERSION IN PHOTOSHOP
Several methods can be used to convert a color image to grayscale in Photoshop: