https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Can-i-do-a-hard-reset-to-my-Pixma-mg7520/m-p/354197#M12789 <P>Hello Rusty_Alexander,</P><P>&nbsp;</P><P>I checked and I could not find a reference for a 903 error. You can try unplugging the printer from the power and then pressing the power button 10 times while the printer is unplugged. After that, you can plug the printer into a different power source and you can try turning it on.</P><P>&nbsp;</P><P>If you are still getting the error, it would mean the printer needs further troubleshooting. We would be happy to assist with the issue. To provide some feedback or some troubleshooting steps, we would need some additional information. If you could reply to this message with the information below, we can provide some assistance.</P><P>&nbsp;</P><OL><LI>Once the printer turned back on, what error&nbsp;code number do you see now?</LI></OL><P>&nbsp;</P> Wed, 27 Oct 2021 17:44:08 GMT Hector 2021-10-27T17:44:08Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Can-i-do-a-hard-reset-to-my-Pixma-mg7520/m-p/349800#M12788 <P>I have error code 903 after it has worked perfectly. I think I caused a problem while hurriedly changing an ink cartridge. The problem is there are no reset buttons on the touchscreen surround so the usual method of working power and reset together just isn't doable.</P> Fri, 20 Aug 2021 21:38:40 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Can-i-do-a-hard-reset-to-my-Pixma-mg7520/m-p/349800#M12788 Rusty_Alexander 2021-08-20T21:38:40Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Can-i-do-a-hard-reset-to-my-Pixma-mg7520/m-p/354197#M12789 <P>Hello Rusty_Alexander,</P><P>&nbsp;</P><P>I checked and I could not find a reference for a 903 error. You can try unplugging the printer from the power and then pressing the power button 10 times while the printer is unplugged. After that, you can plug the printer into a different power source and you can try turning it on.</P><P>&nbsp;</P><P>If you are still getting the error, it would mean the printer needs further troubleshooting. We would be happy to assist with the issue. To provide some feedback or some troubleshooting steps, we would need some additional information. If you could reply to this message with the information below, we can provide some assistance.</P><P>&nbsp;</P><OL><LI>Once the printer turned back on, what error&nbsp;code number do you see now?</LI></OL><P>&nbsp;</P> Wed, 27 Oct 2021 17:44:08 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Can-i-do-a-hard-reset-to-my-Pixma-mg7520/m-p/354197#M12789 Hector 2021-10-27T17:44:08Z