For some reason, some contributors here say I shouldn't suggest you do a Google search for yourself. To make life easier for you next time you need to find some information, however, may I point out that I found these results by doing that search and all within about 90 seconds. No expert user ability needed; I just searched for "ir3235 error 000020-0000"
http://printcopy.info/?l=en&mod=erc&brand=Canon&model=iR3235
http://www.copytechnet.com/forums/canon/7278-what-e000020-0000-a.html
XXX, March 2017
