I have a relatively old Cannon printer. I am using Linux Mint 19. When ever I print to paper, there is no problem. Image is fine. But when I try to use photo paper, the image looks like a negative from film. I've tried to readjust the settings, quality, type of paper (other paper or high quality) and automatic. Each time I get the same result. To add insult to injury, Cannon does not support Linux-neither firmware or software. I thought it was the printer. Apparently not. Has anyone else had this problem? Image is fine on regular paper, but not photo paper. I've even tried adjusting the DPI. Nada. I look forward to your feedback on this. Thanks.