https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Re-Drivers-Needed-10-9-4-and-10-10/m-p/142639#M37012 <P>Hi MtLady165,</P><P>&nbsp;</P><P>Installing the latest drivers and software for the printer compatible with the Mac OS X 10.10 operating system from the Canon USA website may resolve the issue you are experiencing. &nbsp;Please <A target="_blank" href="http://www.usa.canon.com/cusa/support/consumer/printers_multifunction/pixma_mg_series/pixma_mg5420#DriversAndSoftware">click here</A>&nbsp;to go to the Drivers and Software page for the PIXMA MG5420. &nbsp;Once on the initial download page for your model, please do the following:<BR /><BR />1. Verify that the operating system detected in the "OPERATING SYSTEM" drop-down menu is correct, and if it is not, please click the drop-down menu to select your operating system.<BR /><BR />2. Next, please click on the red arrow next to the "DRIVERS" section and click the CUPS drivers file. When you do, a red DOWNLOAD button will appear. Please click on the checkbox below the DOWNLOAD button, then click the red DOWNLOAD button to begin the download. The time for the download process may vary depending on the speed of your Internet connection and the size of the file being downloaded.<BR /><BR />Once you have downloaded the CUPS drivers file, please follow the steps above to also download all other items from the DRIVERS and SOFTWARE section. If you plan on using the printer wirelessly, you will also want to download the Canon IJ Network Tool from the SOFTWARE section.<BR /><BR />Once all items are downloaded, please double-click on each of the items to install them on your Mac. Please ensure that the IJ Network Tool is the last item installed (if installing the printer wirelessly). &nbsp;<BR /><BR />Hope this helps!</P><P>&nbsp;</P><P>This didn't answer your question or issue? Please call or email us using one of the methods on the <A target="_blank" href="http://www.usa.canon.com/cusa/consumer/standard_display/contact_us_consumer">Contact Us</A> page for further assistance.</P> Fri, 05 Jun 2015 12:33:53 GMT Ramona 2015-06-05T12:33:53Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Re-Drivers-Needed-10-9-4-and-10-10/m-p/140216#M37011 I found this page about an hour ago and thought my problems with connecting to my printer (MG5420) had been solved. I couldn't connect after having Mac OS 10.10 installed a few days ago. My System Preferences now recognize my printer, which they hadn't yesterday, but I still have a problem. I keep getting a message that "The printer is not connected," even though it is. I've tried whatever I could think of, taking my USB cord in and out, etc., but nothing works. Any other suggestions? Tue, 05 May 2015 18:51:54 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Re-Drivers-Needed-10-9-4-and-10-10/m-p/140216#M37011 MtLady165 2015-05-05T18:51:54Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Re-Drivers-Needed-10-9-4-and-10-10/m-p/142639#M37012 <P>Hi MtLady165,</P><P>&nbsp;</P><P>Installing the latest drivers and software for the printer compatible with the Mac OS X 10.10 operating system from the Canon USA website may resolve the issue you are experiencing. &nbsp;Please <A target="_blank" href="http://www.usa.canon.com/cusa/support/consumer/printers_multifunction/pixma_mg_series/pixma_mg5420#DriversAndSoftware">click here</A>&nbsp;to go to the Drivers and Software page for the PIXMA MG5420. &nbsp;Once on the initial download page for your model, please do the following:<BR /><BR />1. Verify that the operating system detected in the "OPERATING SYSTEM" drop-down menu is correct, and if it is not, please click the drop-down menu to select your operating system.<BR /><BR />2. Next, please click on the red arrow next to the "DRIVERS" section and click the CUPS drivers file. When you do, a red DOWNLOAD button will appear. Please click on the checkbox below the DOWNLOAD button, then click the red DOWNLOAD button to begin the download. The time for the download process may vary depending on the speed of your Internet connection and the size of the file being downloaded.<BR /><BR />Once you have downloaded the CUPS drivers file, please follow the steps above to also download all other items from the DRIVERS and SOFTWARE section. If you plan on using the printer wirelessly, you will also want to download the Canon IJ Network Tool from the SOFTWARE section.<BR /><BR />Once all items are downloaded, please double-click on each of the items to install them on your Mac. Please ensure that the IJ Network Tool is the last item installed (if installing the printer wirelessly). &nbsp;<BR /><BR />Hope this helps!</P><P>&nbsp;</P><P>This didn't answer your question or issue? Please call or email us using one of the methods on the <A target="_blank" href="http://www.usa.canon.com/cusa/consumer/standard_display/contact_us_consumer">Contact Us</A> page for further assistance.</P> Fri, 05 Jun 2015 12:33:53 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Re-Drivers-Needed-10-9-4-and-10-10/m-p/142639#M37012 Ramona 2015-06-05T12:33:53Z