If you have a C454e, then wherever you got your jam code info from is wrong. J66-05: "The document reading sensor (PS6) is not turned OFF after a lapse of a given time after the registration
sensor (PS3) is blocked."
Lift up the ADF. On the Left side of the ADF, you will see a black plastic strip with a metal plate attached to it on the left side of the white "roller". There is a notch in the center (front to back) of this plastic strip (See Attachment). Inside that hole is the PS6 sensor, and across from it, attached to the black plastic, is a felt pad that you can not see. On this model of ADF, Konica Minolta decided it was a good idea to eliminate the ability to flip this open for cleaning, and decided that screwing it to the ADF was a better idea; they were WRONG. Take a can of compress "air" and blow out the inside area of this notch, and there is 98% chance that your jamming will stop.
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