I recently upgraded my Macbook to a current Macbook Pro running Catalina 10.15.3. I installed the latest Canon Printer Drivers from the website and my Pro-1 is running firmware 2.110. The printer prints letter size just fine. However, when I try to print on 13 x 19 paper the last aproximately 10 mm of the image is not finished. I am printing from ON-1 Raw, but I have saved as a .tiff and printed on Qimage and get the same result. The image below shows the incomplete printing in the last portion of the print. The page size in set up is A3+ 30mm borders, but it prints with 25 mm borders. The same file prints perfectly on letter size.
