Wasp WPL305 Direct Thermal/Thermal Transfer Printer - Monochrome - Label Print - 127 mm/s Mono - 203 dpi - Ethernet. The Wasp WPL305 is a compact, powerful desktop Label printer designed to meet your light- to medium-duty bar code printing requirements. Its durable construction, speed, and dual printing technologies make the WPL305 a leader in its class.The WPL305 is designed to be easy to install and use. Due to its reliability, it requires little maintenance.