Applicable models: S8xNX
Please refer to the below.
The causes frequently observed
(1) Improper loading of the label
(2) Dirt such as adhesive or piece of label on the label route
Measure
(1) Please refer to the below link and reload the label accordingly.
S8xNX: How to set and reload the media (label and ribbon):
(2) Please clean the inside of the printer, particularly the media route.
Refer to the following videos of the individual cleaning procedures.