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MH5420/5440

Characteristics

Single-pass 600dpi high-resolution printing
and support for multiple ink colors

image:>Single-pass 600dpi high-resolution printing and support for multiple ink colors

With 1,280 nozzles configured in 4 x 150dpi rows, this head achieves high-resolution 600dpi printing. Additionally, the ink paths are isolated, enabling a single head to jet up to four ink colors.

Support for grey-scale

Achieves excellent gray-scale rendering with up to 4 scales per dot.

Excellent durability
and extended service life

Ricoh inkjet print heads are made of stainless steel. These heads are highly robust and offer excellent anti-corrosion properties for multiple inks, resulting in excellent durability and extended service life.

Support for different inks

With its built-in heater, these heads are capable of jetting high-viscosity inks. Additionally, the ink path is isolated from the actuator (piezo elements) , i.e. no ink contact.

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 head with support for multiple nozzles and colors

Choose from two-color or four-color models to suit your application.

image:Specifications / External dimensions

  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℃
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)
  • *Results obtained from continuous jetting test using standard Ricoh test ink.

image:Specifications / External dimensions