13 points
My color laser printer uses only K to print blacK. It takes four cartridges, and I’ve only had to replace the C, M, and Y cartridges once in the 15 years or so I’ve owned it, because I almost never print pages with color.
8 points
It sounds like your printer has a true monochrome mode you can specify. Makes and models that are more user-hostile often use drivers that default to grayscale for non-color prints.
1 point
