The use of each ink varies depending on the color of image to be printed or the contents of document. Two kinds of black ink (PGBK and BK) are used automatically depending on the media type to print or on the settings of the printer driver. PGBK is used mainly for printing text-based documents and BK is used mainly for printing photos, illustration, etc. Black-and-white printing may also use ink other than black ink. So, color ink is consumed even when printing in black-and-white.
To use only the PGBK ink tank, the original text must be black and the paper setting must be set to Plain Paper.
I keep the setting on plain paper and the documents are also always in black originially and I have lost so much color ink. I am very upset and would not have bought this type of printer if I knew this in advance, I am going through so much Ink i have kept my 20 year old printer so that I can continue to print on that. Wish I could exchange it.
It is recommended that you contact one of Canon's Technical Support Representatives via phone or chat. To contact a Technical Support Representative, please use the link below:
I just joined this community becuase I have the same problem, it is extremely frustrating and I would never have bought this printer had I known this would be a problem. I mainly only print in draft black and white too, to save on ink. my color ink is completely gone and I setup my printer in the Springtime 2020. it is July 2020. I already replace the black once.