Printer reads out "paper is Jammed" and there is no jammed paper, what

What would the “reset code” be for the OfficeJet 8620 Printer , and how does it be input?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0