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RICOH MH5421F/5421MF Product Overview
Offering high resolution printing and recirculating functionality, this latest printhead enables increased ink compatibility with high durability.
MH5421F/5421MF Video
The RICOH MH5421F/5421MF is Ricoh's recirculating industrial printhead, offering high-resolution 600 dpi printing with 1,280 nozzles and high durability via its stainless steel construction. The continuous ink recirculation structure ensures high reliability, minimized nozzle clogging, and air bubble removal, enabling increased ink compatibility and stable quality for single-pass applications like Textiles, Ceramic, Label, and Packaging.
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Characteristics
Single-pass 600 dpi high-resolution printing
With 1,280 nozzles configured in 4x150dpi rows, this printhead achieves high-resolution 600dpi printing. Isolated ink paths enable a single printhead to jet up to two ink colors.
Additionally the printhead is provided in two viscosity formats (F/MF) for optimized fluid handling performance.
Ink recirculating structure
Highly stable jetting performance is achieved through the introduction of a new recirculating structure. This structure enables continuous ink flow resulting in reducing the risk of jetting failure caused by either clogged ink or entrapped air bubbles. Each printhead has enhanced bonding technology for improved durability. With these new features, the RICOH MH5421F and MH5421MF printheads offer enhanced compatibility with a wider range of fluids. These features result in:
- Increased reliability for single-pass printing by delivering improved print quality and productivity
- Increased reliability for systems with rapid setting ink, such as pigment ink, white or metallic materials
- Increased reliability for systems with fast drying ink
- The removal of air bubbles in the ink chamber to achieve self-recovery from jetting failure
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*Single-pass system : the printhead carriage remains in a fixed position and completes image printing in a single pass while the print material is conveyed underneath.
Support for grey-scale
Achieves excellent grey-scale rendering at up to 4 levels.
Excellent durability and extended service life
Ricoh inkjet printheads are made of stainless steel. These printheads are highly robust and offer excellent anti-corrosion properties for multiple inks, resulting in excellent durability and extended service life.
Variable drop volume capability
The multi-drop capability allows the creation of a range of drop sizes enabling grey-scale printing.
Specifications / External dimensions
inkjet printhead with high durability and reliability for 2 ink colors
Choose from 11mPa･s ink viscosity or 6mPa･s ink viscosity models to suit your application.
RICOH MH5421F/MH5421MF
Specifications
| RICOH MH5421F | RICOH MH5421MF | ||
|---|---|---|---|
| Method |
Piston pusher with metallic diaphragm plate
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| Ink circulation structure |
Supported
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| Print width |
54.1mm
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| Number of nozzles |
1280 (4 x 320 channels), staggered
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| Nozzle spacing |
1/150" (0.1693mm)
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| Nozzle spacing (Row to row distance) |
A : 0.55mm B : 11.81mm (See illustration below)
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| Max. number of color inks |
2colors
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| Compatible ink |
UV, Solvent, Aqueous, others
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| Operating temperature range |
Up to 60℃
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| Temperature control |
Integrated heater and thermistor
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| Jetting frequency |
30kHz
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Drop volume
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7/14/21pl (depending on the ink)
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| Viscosity range F/MF |
11mPa⋅s
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6mPa⋅s
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Grey-scale
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4levels (depending on the ink characteristic)
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| Separately sold parts |
RICOH MH5421F / MH5421MF dedicated cable
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| Total printhead dimensions. |
89(W) x 24.5(D) x 66.3(H) mm (3.5" x 1.0" x 2.6")
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| Weight |
147g
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*Results obtained from continuous jetting test using standard Ricoh test fluid.
Nozzle
Total printhead dimensions (including dedicated cable)
Customer Resources
For Customers Considering a Purchase
Related Links
Ricoh's inkjet technology is based on more than 50 years of continuous research and innovation.Ricoh keeps expanding the printing possibilities, delivering new value and new experiences for our customers across the globe.
Ricoh operates Inkjet printhead business globally.