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Go to Control Panel > Programs and Features, find and select "Canon MX330 Series MP Drivers" and click "Uninstall".Disconnect the printer from the computer.For the 32-bit version of Windows 7, you should download " md86-win-mx330-1_02-ej.exe" - click the "Download" button and save the file in a location that you will remember (e.g., your Desktop).Make sure that the website has correctly identified your version of Windows and then click the "Select" button.and click the "Drivers and Downloads" button Given that this is essentially the process that seems to have caused your issue in the first place, I don't have a lot of hope that this will fix things, but this is what Canon recommends as a first step.
#Canon pixma mx330 set up Bluetooth#
If troubleshooting a communication issue, reconnect the data cable (not applicable to WiFi, Bluetooth or Infrared). Unplug the printer's power cord for approximately 10 minutes, and then plug it back in.Disconnect the data cable from the printer (not applicable to WiFi, Bluetooth or Infrared).Turn the printer off with the Power button (if available).I don't have a definitive answer for you and the following are only guesses. Now select (click on) "Device Disconnect" and you should see "Windows Hardware Remove.wav" click the "Play" button to listen.
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