After operating without any issues for 3 years my Canon Pro100 started printing very badly -- colors not correct, colors washed out, no contrast or sharpness of any kind -- I changed the ink tanks even some not needing changing -- ran all cleaning utilities (twice) and the test pages printed correctly -- prints are still all washed out and not correct
UsIng a MacBook Pro with High Sierra -- note printer communicates correctly for color prints with my HP All-in-One.
Any similar experiences or thoughts on a solution. Thank You
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The sequence you listed is the best way to remove and reinstall the printer.
As far as connecting with a USB, that is really up to to you. If you only print from the one device and dont need to print wirelessly from other devices then I would recommend connecting the printer with the USB cord.
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You might want to also delete the existing printer and re-add when you download new driver. Wait a few minutes for the Canon version to appear when you click "+"; the AirPrint/Bonjour driver usually appears first.