Sun, Mar

Kyocera develops new printhead

Kyocera has brought out its next-generation inkjet printhead aimed at the graphics market. The 1200dpi KJ4B-EX 1200 is said to offer a 25% faster print speed over conventional models.

This new aqueous ink printhead is the second in the KJ4EX series - the first was the 600dpi KJ4B-EX600, which came out last April. Kyocera plans to gradually expand its line-up to include larger-drop-volume and UV compatible models.

The KJ4EX series utilises large integrated piezo actuators instead of multiple piezo actuators per printhead, allowing image homogenisation within the printhead for higher resolution.

The maximum jetting frequency has been increased to 80 kHz, enabling single-pass printing at up to 100m/min when printing in the 1200dpi feed direction.


By incorporating an analogue waveform circuit capable of achieving drive waveforms of arbitrary shapes, the printhead design generates a driving waveform suitable for stable ejection of 1.5pl droplets.

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