Glue supply for labeling unit with glue printer

A labeling unit for applying labels onto containers, comprising:

• a pallet carousel with a plurality of pallets to be driven to circulate about an axis of rotation;
• a glue printer disposed in a periphery of the pallet carousel having a plurality of glue nozzles controllable individually or in groups;
• and
• a glue supply device for continuously supplying the glue printer with glue, wherein the glue supply device comprises:
• a storage tank for glue having a low viscosity,
• a supply line for supplying glue from the storage tank to the glue printer,
• a continuously delivering glue pump which is embodied to deliver glue from the storage tank into the supply line, and
• a hydropneumatic reservoir for the glue,
• wherein the hydropneumatic reservoir is arranged at the supply line upstream of the glue printer.