These units are in good condition with perfect print head output. 

This version supports UPS Worldship, FedEx, Stamps, Shipworks, Shiprush and Many More ...

Shipping Labels Printed with Simplicity and Speed

Zebra’s ZP 450 thermal printer was designed exclusively for parcel/post
labeling. The economical, compact ZP 450 offers unparalleled ease of
use, and, at 5 inches per second, is one of the fastest direct thermal
desktop printers in its class. Feature-rich to meet customer needs, the
ZP 450 builds on Zebra’s proven service to the parcel/post industry.

Easy to Use and Maintain

The ZP 450 is the simplest printer to load, install, operate and
maintain—from loading the media, installing the software, printing a
label, and cleaning printheads. In addition, the ZP 450 Windows® driver
simplifies management of the printer.

Advanced, Sturdy Design

The advanced features and durable design of the ZP 450 make it a
great value. It includes an integrated power supply that eliminates the
bulky power adapter, sturdy double-walled construction, improved print
quality, and better sensing techniques to handle media variability.