Operating System - Windows 7 Professional
Printer - Canon Multifunction MP530
The printer is listed as Windows 7 compatible and I have installed the latest drivers on the Canon site. The printer installed correctly and all its functions work correctly.
When I connect the printer to my machine and power it on the other 7 USB ports fail to operate correctly. I cannot read a flash drive and my USB connected card reader does not function.
If the PC is loaded with the printer switched off then all the other USB ports function correctly while the printer is switched off. If I then switch the printer on I can print OK but cannot use any of the other USB devices until I restart with the printer switched off.
In Device Manager the printer is shown as working OK but the card reader is shown as "Device cannot start".
Driver Details USB Host Controller - Provider = Intel, Date = 13/09/2006, Version = 126.96.36.1998
Driver Details USB Hub - Provider = Microsoft, Date = 21/06/2006, Version = 6.1.7600.16385