Took a recall from one of my techs today Machine had a C4-20. Went to call rebooted the machine & code came back as L4-19 another reboot and now L-4-18 these are drum motor locked up codes. I also noticed Cyan toner ctg had popped out so I replaced it. Waste toner seemed heavy but not calling to be replaced but I did so in case toner was backing up to the Drum units. I checked the drums and both Cyan & magenta had drum blades dragging and probably flipped. Both had been replaced as new units late last week for the same reason as well as the Black only about 50k on color and black. Only had one drum unit left in stock so I tried cleaning and powdering the blades Magenta kept failing but Cyan seemed OK. REplaced Magenta unit and Ran 25-01 to see what happened. The cyan drum failed again and I recleaned & powdered. None are showing the tell tell toner on the drums now but I can hear what I assume is the Cyan drum running. I replaced transfer unit and it removed one of the binding noises. So now if I run Black copies all seems well and quiet. If I run color I get a noise. Has anyone seen or heard of possible defective 6070 Drums. Seems odd that they failed soon after replacement. Any help is appreciated.
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