Ricoh GEN4L 27PL Printhead - MH2820

The Ricoh MH2820 is an industrial inkjet printhead designed for larger droplet printing, with a native drop size of 27 pl and a drop range of 27–54 pl. It is commonly used with UV, solvent, and aqueous inks.

Key specs

•     Native drop volume: 27 pl.
•     Drop volume range: 27–54 pl.
•     Jetting frequency: up to 30 kHz at 27 pl and 20 kHz at 54 pl.
•     Nozzles: 2 x 192 nozzles.
•     Temperature control: integrated heater and thermistor, with operating temperature up to 80°C.
•     Viscosity range: 11–13 mPa·s.

Common FAQ

•     What inks does it support? UV, solvent, and aqueous inks are listed as compatible.
•     What is it best for? Larger-drop, high-throughput industrial printing, especially where higher-viscosity inks are used.
•     Does it have grayscale capability? Yes, 3 grayscale levels are listed for the MH2820.
•     What is the expected life? 100 billion actuations per nozzle.
•     Does it have warranty? Yes this printhead covered with manufactured warranty.

Installation notes

We supplied with hose barbs that can be removed if an O-ring style setup is needed, and recommend replacing head cables during installation. The printhead length is listed as 256 mm including cables, with front alignment pin direction standard and back optional.

Compatibility reminder

This printhead is a hardware component, so compatibility depends on the printer model, carriage setup, ink system, and firmware/profile support. Ricoh’s product page identifies the MH2820 as part of the MH2620/MH2820 family and lists it as a 150 dpi, 27–54 pl model.