Looks like a 2nd transfer roller problem. Open right door, you will see a black roller about 20" long. Foam covered by rubber/vinyl. Look for bunching, wrinkling, loss of the vinyl. The pattern you posted is about the circumferance of this roller. The Image Quality sensors look at the pattern on the x-fer belt before it is transferred so this would not be the source of the CE40 error codes. It might be worth the $200-250 it will take to have this roller replaced and the MFP professionaly cleaned up. And I aggree with previous posts, this MFP is a dust bunny. If you have the money, there are many upgrades that can help with the dusting probelm including 351C developer, new gap tolerances on the DV units, an anti dusting kit. EMujo
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