The LVS 7500 from Label Vision Systems is a vision technology for thermal label printers. System functions include master-to-label comparison for blemish detection, bar code verification and validation (1D and 2D), Delta E color detecting, optical character recognition, optical character verification, field matching, and number/data validation. The system also has an automatic setup for quick label and field identification, job retrieval for recall or modification of previous runs, and a robust alarm matrix for user-defined I/O interaction with peripheral devices including line and printer stop capabilities. The read head and mounting plate make for simple integration with thermal label printers and other slow-speed roll printing applications.