Patent ID: 8091791

Claim:
A method for marking an item, comprising the steps of: a) providing information to be applied to the item; b) applying a first marking to the item corresponding to the information provided in step a); c) reading said first marking applied in step b) and comparing it with the information provided in step a); d) applying a second marking to the item if the first marking read in step c) does not correspond to the information provided in step a); wherein said first marking, said reading of said first marking, said second marking are performed in a continuous process operated at a conveyor speed of the item for marking, and said first marking is printed using an ink comprising a material-based security element selected from the group consisting of luminescent materials, UV absorbers and IR absorbers, determining the conveyor speed of the item for marking; and at least one of: inputting the detected conveyor speed to a printer controller for applying the first marking in step b); inputting the detected conveyor speed to a reader controller for reading the first marking applied in step b); and inputting the detected conveyor speed to a printer controller for applying the second marking in step d).