Original Mutoh RH-II/RH-3 Eco Solvent DX4 Printhead-MY-44743 Number MY-44743. It includes the special bracket required on Mutoh printers. Rockhopper II Head Assy - MY-44743 Original Mutoh RH-II/RH-3 Eco Solvent DX4 Printhead-MY-44743 Number MY-44743. It includes the special bracket required on Mutoh printers. The Rockhopper II printhead assy has a native resolution of 360 dpi, 2 nozzle lines (corresponding with 2 independent ink channels) and 180 nozzles per line with a typical firing frequency of 8 kHz, a minimum droplet size of 3.5 pico litre and is used for either 1 colour through both channels or 2 colours through the independent channels. Product Specifications Technology: Micro-Piezo Native resolution: 360 dpi Min. Droplet Size: 3.5 pico litre Tot. Amount of Nozzles: 360 (2 lines x 180 nozzles) Firing Frequency: 8 kHz Ink Compatibility: eco-solvent and mild solvent Suitable for Printer below : Mutoh - Rockhopper 3 65 - Rockhopper 3 90 - Rockhopper 3 Extreme 65 - Rockhopper 3 Extreme 90 - Rockhopper II 50 - Rockhopper II 64 - Rockhopper II 87 - Rockhopper II-2H - Rockhopper II-4H - Spitfire 65 - Spitfire 90