Epson DLQ-3500. Maximum resolution: 360 x 360 DPI. Maximum print speed: 550 cps, Normal print speed: 495 cps, Built-in barcodes: Code 39, POSTNET, UPC-A, UPC-E. Print head: 24-pin. Buffer size: 128 KB. Optional connectivity: Ethernet, Standard interfaces: Parallel, USB 1.1