A laser coder is a compact, highly efficient laser marking system specifically engineered for the high-speed application of variable data on production lines, particularly in the packaging, food, beverage, and pharmaceutical industries. The term "coder" emphasizes its primary function: to print constantly changing information such as expiration dates, batch numbers, sequential codes, and barcodes onto primary and secondary packaging. Laser coders are designed for seamless integration into fast-moving production environments, often featuring a small footprint, easy mounting options, and simple user interfaces for quick product changeovers. They utilize either CO2 laser sources for marking on organic materials like cardboard, glass, and most plastics, or fiber lasers for metals and some technical plastics. The non-contact nature of laser coding eliminates the problems inherent to ink-based systems, such as smudging, ink fading, and the maintenance associated with print heads and ink reservoirs. This results in a consistently high-quality, legible mark on every item, which is crucial for automated vision inspection systems downstream. Furthermore, laser coding is a more sustainable solution, as it produces no waste from expired inks or solvents and consumes less energy over its lifetime. For a company coding onto the plastic film of a package or directly onto a container, a laser coder provides unparalleled reliability, reduces total cost of ownership by eliminating consumables, and ensures 100% mark permanence for product safety and traceability from the factory to the end-user.