Epson Epson LQ-300+II. Maximum print size: A4 (210 x 297 mm). Maximum print speed: 300 cps, Built-in barcodes: Code 39, POSTNET, UPC-A, UPC-E. Buffer size: 32 KB. Standard interfaces: Parallel. Print head life: 200 million characters, Mean time between failures (MTBF): 6000 h