https://community.usa.canon.com/t5/Office-Printers/DR-2020-Lock-Switch/m-p/88478#M794 <P>Hi redhead_asst!</P><P>&nbsp;</P><P>I understand that this error is frustrating.&nbsp; Please release the lock switch again and press the "STOP" button.&nbsp; Next, power off the machine and unplug it from the wall for five minutes.&nbsp; After plugging the machine back in and powering it on, please scan a document.</P><P>&nbsp;</P><P>If the error persists, we recommend that you contact us at 1-800-OK-CANON (1-800-652-2666).&nbsp;</P> Mon, 21 Apr 2014 15:32:51 GMT Patrice 2014-04-21T15:32:51Z https://community.usa.canon.com/t5/Office-Printers/DR-2020-Lock-Switch/m-p/87700#M788 <P>Having problem with scanning - error "Release lock switch."&nbsp; I have but still having problems.</P> Fri, 18 Apr 2014 19:09:58 GMT https://community.usa.canon.com/t5/Office-Printers/DR-2020-Lock-Switch/m-p/87700#M788 redhead_asst 2014-04-18T19:09:58Z https://community.usa.canon.com/t5/Office-Printers/DR-2020-Lock-Switch/m-p/88478#M794 <P>Hi redhead_asst!</P><P>&nbsp;</P><P>I understand that this error is frustrating.&nbsp; Please release the lock switch again and press the "STOP" button.&nbsp; Next, power off the machine and unplug it from the wall for five minutes.&nbsp; After plugging the machine back in and powering it on, please scan a document.</P><P>&nbsp;</P><P>If the error persists, we recommend that you contact us at 1-800-OK-CANON (1-800-652-2666).&nbsp;</P> Mon, 21 Apr 2014 15:32:51 GMT https://community.usa.canon.com/t5/Office-Printers/DR-2020-Lock-Switch/m-p/88478#M794 Patrice 2014-04-21T15:32:51Z