Ricoh MH5421 Printhead Description
The Ricoh MH5421 GEN5 water-based (J36004) printhead is designed for industrial inkjet printers requiring stable performance and long service life.
It supports 2 colors with 1,280 nozzles and a 7PL droplet size, delivering consistent and precise inkjet output. The long cable design makes it suitable for industrial printer configurations.
Ink type: Water-based
Droplet size: 7 PL
Nozzles: 1,280
Colors: 2
Total length: 500mm (400mm cable)
Model: MH5421
Part number: J36004
J36004 replaces: N221414D / N221414F / N221414K / N221414P / N221414C
Supplied with removable hose barbs for flexible installation.
Ricoh MH5421 Printhead Specifications
| Head materials | SST, Nickel alloy, and Epoxy Adhesive |
| Number of nozzles | 1,280 (4 x 320 channels), staggered |
| Nozzle spacing (4-color printing) | 1/150″ (0.1693 mm) |
| Nozzle density | up to 600 npi |
| Piezo type | D33 Stacked PZT |
| Temperature control | Integrated Heater and Thermistor |
| Operator temperature range | Up to 80° C |
| Native drop volume | 7 pl |
| Drop volume range | 7 – 35 pl |
| Jetting frequency | Up to 60 kHZ |
| Ink compatibility | Water Inks |
| Life | 100 billion actuations per nozzle |
