https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/MX922-Duplex-gives-false-jam-1300-codes/m-p/251866#M24485 <P>At first, I could reliably print duplex on MX922. Over time it has increasingly failing with "1300" "Jammed in paper output" messages. I have never found any debris to remove. I have used flashlights, compressed air and a toothbrush to try to clean any dust that I can find in the accessible parts of the printer. Nothing helps. It prints ok without duplex.</P><P>&nbsp;</P><P>I am printing from Linux (Ubuntu 16.04).</P><P>I chosse the duplex setting when I print. I did not set duplex from the driver. My assumption is that it should not matter where I set duplex, and that setting at driver simply forces all print jobs to be duplex.</P> Wed, 08 Aug 2018 15:57:38 GMT fbacher 2018-08-08T15:57:38Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/MX922-Duplex-gives-false-jam-1300-codes/m-p/251866#M24485 <P>At first, I could reliably print duplex on MX922. Over time it has increasingly failing with "1300" "Jammed in paper output" messages. I have never found any debris to remove. I have used flashlights, compressed air and a toothbrush to try to clean any dust that I can find in the accessible parts of the printer. Nothing helps. It prints ok without duplex.</P><P>&nbsp;</P><P>I am printing from Linux (Ubuntu 16.04).</P><P>I chosse the duplex setting when I print. I did not set duplex from the driver. My assumption is that it should not matter where I set duplex, and that setting at driver simply forces all print jobs to be duplex.</P> Wed, 08 Aug 2018 15:57:38 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/MX922-Duplex-gives-false-jam-1300-codes/m-p/251866#M24485 fbacher 2018-08-08T15:57:38Z