DF-621 W/ reoccuring J66-23 codes

**CraigW** · 11-08-2017

Anyone else dealing with returning J66-23 codes/calls on the DF-621 ADF we have cleaned the reflective photo sensor on the lower portion, and it's associated black felt.

Thank You !!

**mtgrizrich** · 10-05-2018

Originally Posted by CraigW

Anyone else dealing with returning J66-23 codes/calls on the DF-621 ADF we have cleaned the reflective photo sensor on the lower portion, and it's associated black felt.

Thank You !!

This ever get resolved? We are fighting the same
thing.

**Woxner** · 10-06-2018

replace the two feed clutches.

**CraigW** · 12-13-2019

Did battle yesterday on DF-621 constant 66-23s again....

Turns out the DEEP hole for the upper reflective, had just enough paper dust present to cause constant 66-23 jamming each attempt.

Thanks for the help all !!!