The Zebra ZD421 model is the successor to the Zebra GK420d and will be delivered from mid-2023.
The new model has a dispensing edge. The label is already removed at the dispensing chute and the carrier paper is wound up.
Details can be found in the quick guide in the download area.
ZEBRA ZD421 - Dispensing Edge Mode
ZEBRA ZD421 - Mode without dispensing edge