Ricoh GEN5 Printhead - MH5421F

The Ricoh GEN5 MH5421F is a 600 dpi industrial inkjet printhead with 1,280 nozzles, up to 2-color capability, and 4-level grayscale support. It is designed for high-durability industrial printing and is compatible with aqueous, UV, and solvent inks depending on the setup.

What is the MH5421F?
It is a recirculating industrial inkjet printhead from Ricoh designed for high-resolution single-pass printing with 1,280 nozzles and 600 dpi output.

What are the main differences between MH5421F and MH5421MF?
Both share the same core platform, but Ricoh lists different viscosity formats: MH5421F at 11 mPa·s and MH5421MF at 6 mPa·s, so the better choice depends on your ink and application.

What inks does it support?
Ricoh lists UV, solvent, aqueous, and other inks, with compatibility depending on the system and fluid properties.

Can it print in color?
Yes, it supports up to 2 ink colors per printhead.

Does it support grayscale?
Yes, it supports up to 4 grayscale levels, depending on ink characteristics.

What drop sizes are available?
Ricoh lists 7, 14, and 21 pl drop volumes, depending on the ink type and properties.

What is the printhead width?
The print width is 54.1 mm.

What is the jetting frequency?
The listed jetting frequency is 30 kHz.

What makes it reliable?
Ricoh highlights continuous ink recirculation, air bubble removal, clog reduction, stainless steel construction, and enhanced bonding technology for durability.

What are common applications?
Ricoh positions it for textiles, ceramic, label, and packaging systems.

Buying checks

•     Confirm your ink viscosity against the correct variant, F or MF.
•     Verify your controller, cable, and carriage compatibility before ordering.
•     Match the printhead to your ink set, especially for white, metallic, fast-drying, or rapid-setting fluids.
•     Check whether your target application needs 1- or 2-color layout support.

Key specs at a glance