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.
Part# J36004 replaces: N221414D / N221414F / N221414K / N221414P / N221414C
Supplied with removable hose barbs for flexible installation.
Ricoh MH5421 Printhead Specifications
| Method | Piston pusher with metallic diaphragm plate |
| Print width | 54.1 mm |
| Number of nozzles | 1280 (4*320 channels), staggered |
| Nozzle spacing | 1/150’’ (0.1693mm) |
| Nozzle spacing (row-to-row distance) | A: 0.55mm B: 11.81mm |
| Max. Number of color inks | 2 colors |
| Compatible ink | UV, Solvent, Aqueous, Others |
| Operating temperature range | Up to 50 ℃ |
| Temperature control | Integrated heater and thermistor |
| Jetting frequency | 30 kHz |
| Drop volume | 7/14/21pl (depending on the ink) |
| Viscosity range | 11 mPa.s |
| Gray-scale | 4 levels (depending on the in characteristics) |
| Total length | 248mm (cable length: 179mm) |
| Dimensions (WxDxH) | 89 x 24.5 x 69 mm (3.5’’x 1.0″ x 2.7’’) |
| Weight | 155g |
