I’m not sure what part this is. Print head or carriage maybe? Printer had a faulty power system so parting it out. The HP DesignJet 500 Plotter is the perfect tool for all your printing needs. With its 42 roll color print head or carriage, you can create high-quality designs and documents with ease. This inkjet plotter is part of the DesignJet product line and is specifically designed for professional printing needs. The model is the Designjet 500ps, featuring a range of impressive aspects such as its brand, type, output, and product. It is ideal for use in businesses and industrial settings, as well as in the printing and graphic arts industry. This plotter is perfect for creating a range of documents and designs, making it an essential tool for any office or workspace.