xerox wc pro 35 second side printing

[pc123321]

i have xerox workcentre pro 35
printing on second at long edge half inch width dirt
is that printing on second side the paper feed scratch on next paper image
or the roller under image drum dirt
cold someone could give me advice ,,,,

[adriansto]

Re: xerox wc pro 35 second side printing

First step is to remove developer assy and do a good cleanning in the registration area. Also check duplex assy unit for dirt.