Industrial Technology Research Institute

Chi-Bin Lo

Chun-Jung Chen

Chun-Fu Lu

Shyh-Haur Su

Charles C Chang

Bor-Shiun Lee

Cheng-Yi Wang

Fa-Yuan Hsu

Huen-Ling Chen

Sune-Chan Lin

Howard Liu

A structure of the stacked inkjet head is composed of a stacked fluid structure and an actuator. At least one of the several plates in the stacked fluid structure has a junction with a tuning hole for enhancing the connection strength of the junction, accommodating overflown adhesive, and reducing structural deformation resulted from the temperature. The invention also avoids the troubles of inhomogeneous etching speeds when making nozzles or channels.

Structure of stacked inkjet head

A pressure control device for an inkjet pen. The inkjet pen is provided with a reservoir having a first opening and maintaining a back pressure established therein. The pressure control device comprises a bag, a pressure plate, an isolation member, a bias member, and an elastic member. The bag, disposed inside the reservoir, communicates with outside the reservoir so as to expand inside the reservoir. The pressure plate is disposed inside the reservoir and adjacent to the bag so as to move inside the reservoir. The bias member is disposed inside the reservoir and adjacent to the pressure plate, the isolation member, and the reservoir respectively such that the bag expands to move the pressure plate when the back pressure inside the reservoir changes, then the pressure plate moves the bias member so that the isolation member separates from the first opening.

Pressure control device for an inkjet pen

Growing community of inventors

Hsinchu, Taiwan

Chi-Bin Lo