Hey has anyone seen this on any of these models, drums are 2 months old and dv units are 1 month old. bands run front to back as the paper comes out of machine not lead to trail. It is about 1 inch in width and starts heavy then goes light in the middle of the inch and then ends with a straight line. Wanted to post an example but I guess permissions are not allowing me. Drum coupling and spring has been changed, KM technical thinks it could have something to do with main charge. Had it happen 3-4 times in 20k, any info appreciated.

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