There’s no such thing.

There are black ink cartridges. There are white ink cartridges (yes, they are out there). You can print a black and white photo. But there are no black and white cartridges. So, what’s the big deal you ask? Well, I’m not really too concerned about it and it’s a pretty honest mistake when someone says this, but if they thought about what they were saying then they would probably stop. A black and white cartridge…..that just doesn’t make sense. If you were to open up that cartridge, you wouldn’t see any white ink in it. So, let’s just all agree to call them black ink cartridges only from now on.