This is the original Mutoh part (number DG-43988). This printhead replaced part numbers DG-42271, DG-43345 and DG-42987).
Product Specifications:
Technology: Micro-Piezo
Native resolution: 360 dpi
Min. Droplet Size: 1.5 pico litre
Tot. Amount of Nozzles: 1440 (8 lines x 180 nozzles)
Firing Frequency: 8 kHz
Ink Compatibility: eco-solvent and mild solvent
Damper type: requires DX6 Valve Dampers
It is highly recommended to replace the head cables together with a new printhead.
Mutoh: Valuejet 1324 Valuejet 1617H Valuejet 1624 Valuejet 1624W Valuejet 1628TD
Valuejet 1638 Valuejet 1638W Valuejet 1638WX Valuejet 1638X
Valuejet 2628TD Valuejet 2638 Valuejet 426UF