My Dymo 400 model 93490 just started continually feeding labels and it won't stop? I've changed rolls, but it feeds and feeds non stop. Have opened up and checked and there is nothing covering sensors or any stuck labels. All was fine till I changed a roll of labels. Have been using compatible labels, but have also tried genuine ones.

Office Equipment & Supplies - Dymo - LabelWriter - LabelWriter 400 Thermal Printer