Samsung SCX-8128 puts marks on lead edge of the back of the copy.

[tseto]

The Samsung A3 SCX -8128 is driving me crazy. I am used to the Panasonic where everything is under my control. The Samsung SCX-8123/28 started out as a super performer until now. I can't control the lead edge void and consequently toner is deposited on the transfer roller and guide, results in a tiny mark on the back of the lead edge. The service manual is no help. I can adjust the image size and position , but I can't put a clean blank surface on the drum just ahead and behind the paper. I got help on the error code issue, has anyone come accross this issue and have a solution, I am just about going to change the developer, the process unit only has 14,000 copies on it, the drum and dv suppose to last 100K. Thank for the help in advance,

[tseto]

Problem solved. Machine overtoning, Toner density setting for some strange reason was set at +10 , where default is 0. the over toned developer unit is spewing toner dust all over the machine. resetting the toner level to 0, run off a lot of black copies and a good vacuuming seems to do the job.

[toni]

Hi as we do to change 10-0
thanks