hi there, I am sending a simple fix which resolves the issue.
thanks! Piotr
--- a/backend/pixma_mp150.c +++ b/backend/pixma_mp150.c @@ -208,7 +208,7 @@ #define MG6400_PID 0x1770 #define MG5500_PID 0x1771 #define MG7100_PID 0x1772 - +#define MG7500_PID 0x177c /* Generation 4 XML messages that encapsulates the Pixma protocol messages */ #define XML_START_1 \ @@ -1754,6 +1754,6 @@ DEVICE ("Canon PIXMA MG6400 Series", "MG6400", MG6400_PID, 1200, 0, 0, 638, 877, PIXMA_CAP_CIS), DEVICE ("Canon PIXMA MG6500 Series", "MG6500", MG6500_PID, 2400, 0, 0, 638, 877, PIXMA_CAP_CIS), DEVICE ("Canon PIXMA MG7100 Series", "MG7100", MG7100_PID, 2400, 0, 0, 638, 877, PIXMA_CAP_CIS), - + DEVICE ("Canon PIXMA MG7500 Series", "MG7500", MG7500_PID, 2400, 0, 0, 638, 877, PIXMA_CAP_CIS), END_OF_DEVICE_LIST };