crwdns2933897:0crwdne2933897:0

What "B86F4068" means? how to fix?

All lights are flashing on the screen, said “Printer Error: please turn off and On”, but after power off and on again that, a code "B86F4068" shows up, then show the error message again.

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

crwdns2934109:0crwdne2934109:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 0
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