https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/G4780-MEGA-TANK-ADF-Not-working/m-p/593830#M84346 <P>No debris in the paper path, I tired to clean the roller as well but no luck&nbsp;</P> Sat, 25 Apr 2026 01:20:27 GMT Ramakrishnan 2026-04-25T01:20:27Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/G4780-MEGA-TANK-ADF-Not-working/m-p/593778#M84333 <P>Recently purchased the printer and ADF function not working tried scan and copy but printer say no document in Tray even though I placed the paper correctly.</P> Fri, 24 Apr 2026 15:21:09 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/G4780-MEGA-TANK-ADF-Not-working/m-p/593778#M84333 Ramakrishnan 2026-04-24T15:21:09Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/G4780-MEGA-TANK-ADF-Not-working/m-p/593815#M84343 <P>Is&nbsp; there any shipping tape or something in the ADF paper path, blocking the sensor that lets it know paper is loaded?</P> Fri, 24 Apr 2026 21:07:45 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/G4780-MEGA-TANK-ADF-Not-working/m-p/593815#M84343 DerrickL 2026-04-24T21:07:45Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/G4780-MEGA-TANK-ADF-Not-working/m-p/593830#M84346 <P>No debris in the paper path, I tired to clean the roller as well but no luck&nbsp;</P> Sat, 25 Apr 2026 01:20:27 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/G4780-MEGA-TANK-ADF-Not-working/m-p/593830#M84346 Ramakrishnan 2026-04-25T01:20:27Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/G4780-MEGA-TANK-ADF-Not-working/m-p/593938#M84356 <P>Thanks <A class="" href="https://community.usa.canon.com/t5/user/viewprofilepage/user-id/259698" rel="noopener" aria-label="View Profile of DerrickL" target="_blank"><SPAN class="">DerrickL</SPAN></A>, Canon Technician visited and fixed now working fine.</P> Sun, 26 Apr 2026 12:28:13 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/G4780-MEGA-TANK-ADF-Not-working/m-p/593938#M84356 Ramakrishnan 2026-04-26T12:28:13Z