HP Red Ink Cartridge for the ThinkJet, QuietJet and QuietJet Plus Red Inkjet Printers.

HP's original line of thermal inkjet print cartridges is ideal for a wide range of compact printing and marking applications that require small size and low power consumption. Each disposable print cartridge includes a print head with a self-contained ink reservoir for simple, reliable operation and replacement.

Small size and low power consumption make them ideal for compact and battery-driven applications. Non-contact, drop-on-demand inkjet technology delivers reliable, quiet printing on irregular surfaces at variable distances, and print quality is consistent over the life of the print cartridge.

Water- and fade-resistant inks in a variety of colors (red, blue, and black) provide the kind of print permanence that record keeping and transaction receipts require. In addition, the HP 51612A empty print cartridge offers a printing solution for specialized OEM ink formulations.

All of these print cartridges can be snapped in and out for easy replacement.