Analyzing the characteristics of Ricoh nozzles:
1. High-resolution printing and support for multiple ink colors
2. Excellent durability and extended service life
3. Support for grey-scale
MH5220 Specification:
| Model | MH5220 |
| Method | Piston pusher with metallic diaphragm plate |
| Print Width | 54.1 mm(2.1") |
| Number of nozzles | 1,280 (4 × 320 channels), staggered |
| Nozzle spacing (4 color printing) | 1/150"(0.1693 mm) |
| Nozzle spacing (Row to row distance) | 0.93 mm |
| Nozzle spacing (Upper and lower swath distance) | 9.31mm |
| Compatible ink | UV |
| Total printhead dimensions | 89(W) × 64.2(D) × 24.7(H) mm (3.5" × 2.5" × 1.0") excluding cables & connectors |
| Weight | 147g |
| Max.number of color inks | 2 colors |
| Operating temperature range | Up to 60℃ |
| Temperature control | Integrated heater and thermistor |
| Life | 100 billion actuations per nozzle |
| Jetting frequency | 30kHz |
| Drop volume | Binary mode: 2.5pl / Grey-scale mode : 2.5-9pl *depending on the ink |
| Viscosity range | 10-12 mPa•s |
| Surface tension | 28-35mN/m |
| Grey-scale | 4 levels |
| Ink port | Yes |
| Number of ink ports | 2 × dual ports |
| Alignment pin direction | Front (standard) |
| Alignment pin direction | Front (standard) |
| Separately sold parts | FPC cable with connectors |