Avery Dennison Monarch 9855 Operator's Handbook, Maintenance, Service & Parts Manual page 21

For tag supplies using the optional knife, feed the supply through
the knife. Make sure at least 0.5 inches of supply is past the knife.
8. Adjust the supply guides so they touch the supply. Push up on the
supply lever to lock the supply guides into place.
Die Cut
Sensor
Nibs
Suppl y Leve r
Tag
Loading Supplies 2-5