This high-resolution thermal-transfer printer is designed for on-demand printing of colored identifiers directly onto microscope slides for use in pathology and cytology laboratories. The uniquely formulated thermal ink provides easy-to-read printing that is chemically resistant and smudge-proof when dry. The high resolution (300 dpi) makes it possible to print alpha numeric characters, as well as 2D barcodes and graphics. The printer is optimized for Tissue-Tek SmartWrite White Slides, Charged.