Track down a number of hardware problems using the Zebra ZP 450 Troubleshooting guide.
The Zebra ZP 450 was designed specifically to be used with UPS' WorldShip software to print thermal barcode labels for shipments. It can be used with regular labels or sticker labels, depending on your preference.
This version of the device is easily identified by the ZP 450 on the top of the device and the model "UPS ZP Series" on the back of the device. There are three different ports for connecting to a computer: USB, Printer Serial and VGA in addition to a power port and on/off switch.
This printer is the predecessor of the ZP 500 which was released after the 450 in the ZP Series. Both printers are now discontinued and official support is no longer provided by Zebra.