C6500 dark streaks

[knightfall]

Any one out there experienced dark streaking in the main scan when in test mode #53 test pattern. Cleaned all charge unit assy, all dev units, process unit all transfer rollers and 2nd transfer roller and the only way to get ride of the streaks is replace drums. Has anyone have a solution other than replace drums?

[nightshade]

I've never had any good luck cleaning Konica charge units. Try replacing them instead. I carry extras for the 8050/C500's just for this.

[TonerMonkey]

Try cleaning everything in the transfer belt unit which comes into contact with the belt, especially the plate that racks in to bring the belt onto the drums.

[knightfall]

thanks for the input guys