A wireless communication device including an integrated processing circuit and a first memory is provided. The write parameter is applied to writing operations affecting a heat-assisted magnetic recording medium, the write parameter ensuring accurate phase lock during reading of the heat-assisted magnetic recording medium. Each toner particle has a resin particle, which is non-soluble in the liquid developer, and pigment particles formed on the surface of the resin particle, whereby the pigment particles suppress contact between the resin particles. A film that is non-transparent to radiation of the beam is provided at the first side over the sensors. The direction of conveyance and the direction of the stack of the flowerpots are substantially identical immediately before and after labeling or printing and wherein the stack of labeled or printed flowerpots are moved out in a substantially continuous manner by means of an evacuation device, thereby enabling a simple, fast method for rapidly labeling or printing flowerpots.