This M6535cidn has a 27257 total count and has been in the field for about a year. The firmware is up to date.
It has two bands running down the prints. The problem is intermittent but frequent.
I replaced the transfer belt assembly, it didn't fix the problem. Kyocera suggested the secondary transfer roller so I ordered one.
The bands line up with the ID sensors that read the calibration patches on the transfer belt. On of the examples you will notice those marks.
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