Ricoh · Gen5 Series · 4-colour printhead
Ricoh Gen5 MH5440 Printhead (N221345P)
Genuine Ricoh Gen5 MH5440 (P/N N221345P) – the four-colour MH54 head that jets a full CMYK set from one printhead.
- 100% original & brand new
- Made in Japan
- Worldwide shipping by DHL / FedEx
Wholesale price · USD per piece
1 – 4 pcs
$1,910
5 – 9 pcs
$1,900
10+ pcs
$1,892
- 1,280nozzles
- 7–35 pldroplet size
- 30 kHzmax. frequency
- UV / Solvent / Aqueousink type
Ricoh Gen5 MH5440 N221345P Printhead Overview
Ricoh GEN5 MH5440 N221345P Printhead
The MH5440 (part number N221345P) is the four-color model in Ricoh’s fifth-generation (GEN5) MH54 series, capable of independently jetting four colors from a single printhead with fully isolated ink paths. It is compatible with UV-curable, solvent, and aqueous inks, making it widely used in wide-format, textile, and single-pass industrial printing applications. Built with a stainless steel body and integrated heating and temperature control, it offers strong corrosion resistance and a long service life, well suited to extended continuous production.
Key Features
The built-in heater enables jetting of high-viscosity inks. The ink path is fully isolated from the piezoelectric actuator, so the ink never contacts the piezo elements, resulting in greater stability. Multi-drop technology produces droplets of varying sizes for fine grayscale rendering. The stainless steel construction delivers excellent corrosion resistance and durability.
Model differences: The MH5440 (N221345P) and the two-color MH5420 share identical construction and print specifications, differing only in the number of isolated ink paths. The MH5440 uses a four-dual-port design, allowing a single printhead to carry a complete CMYK color set—ideal for compact equipment designs that aim to reduce the number of printheads.
Applications
As a general-purpose OEM industrial printhead, the MH5440 (N221345P) can be used across a range of platforms, including UV flatbed, UV roll-to-roll, solvent wide-format, textile, and single-pass printing. It has no fixed list of compatible machines; specific compatibility is determined by the OEM system design, so it is best to confirm against your actual equipment model before selecting it.
4 colours in one head
Four isolated ink paths with 4 × dual ink ports.
Same specs as MH5420
Only the number of ink paths differs.
Built-in heater
Integrated heater and thermistor keep ink viscosity stable.
Stainless-steel build
Corrosion-resistant body and coated nozzle plate for long life.
Specifications
| MH5420 | MH5440 | |
|---|---|---|
| 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) | 0.55 mm | |
| Nozzle spacing (Upper and lower swath distance) | 11.81mm | |
| Compatible ink | UV, Solvent, Aqueous, Others. | |
| Total printhead dimensions | 89(W) × 69(D) × 24.51(H) mm (3.5″ × 2.7″ × 1.0″) excluding cables & connectors | |
| Weight | 155g | |
| Max.number of color inks | 2 colors | 4 colors |
| Operating temperature range | Up to 60°C | |
| Temperature control | Integrated heater and thermistor | |
| Jetting frequency | Binary mode : 30kHz / Grey-scale mode : 20kHz | |
| Drop volume | Binary mode: 7pl / Grey-scale mode : 7-35pl *depending on the ink | |
| Viscosity range | 10-12 mPa·s | |
| Surface tension | 28-35mN/m | |
| Grey-scale | 4 levels | |
| Total Length | 248 mm (standard) including cables | |
| Ink port | Yes | |
| Number of ink ports | 2 × dual ports | 4 × dual ports |
| Alignment pin direction | Front (standard) |
Not sure this is the right head for your printer?
Send Ewan your printer model on WhatsApp – he’ll confirm compatibility and reply with a quote, usually within a few hours.
