I have a TR8620a Canon Pixma. I'm not asking here. I'm going to give information. Called about selecting black ink and the printer always using all the color instead. Called today. Said to select color. When it sees the document is black, it will select the black ink. Forget that there is no color on what you are printing. Just select color and it will choose the small black ink cartridge. The large black ink is for photos/
