The Oki MICROLINE 420 USB Parallel 9-Pin Dot Matrix Printer D22900A is a reliable and efficient printing solution for your computer. With its dot matrix technology, it is perfect for printing multiple pages quickly and efficiently. The printer is compatible with USB and parallel connections, making it easy to integrate into your existing setup. This model is part of the OKI Microline product line and is designed for use in a variety of settings, including in the home or office. It has been tested and is confirmed to power on, ensuring that it is in good working condition. Unit powers on, but doesn’t print as it should. See pictures.