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Thanks guys. I Already updated the firmware with the same issue.
I'll reset the unit and upgrade the FW again and then test. If the same problem is there, I will replace the DF exit sensor.

Jeff

I have an HP M570dn that just started with an ADF feed issue. First page makes it through. The 2nd page gets half way and it just stops. No errors. The feeder doesn't even attempt to move.
I ran...

I have a few Lexmark MX711's that experience ADF misfeeds. The paper will stop on first page on the separator roller.
I have replaced all feed rollers and the ADF PCBA's with the same issues.

Has...

I have found through extensive testing on the M451/M475 and the CM2320 cartridges, that the chips have been the issue on 8 different OEM cartridges.

I tried switching the white connectivity end...