Special printing tubes allow any Lasetec II laser printer to be converted for use on polyethylene terephthalate (PET). This brings the advantages of the Lasetec II to PET bottles, including ultra-high-speed galvos, vortex cooling and washdown-safe stainless steel housing. The Lasetec PET offers completely hands-free code changeover when connected to an Allen-Bradley controller. Automated product expiration dates can be stored for each bottle size and flavor. Beam Intensity Control insures constant code quality over time.