Seiichiro Karita

TL;DR: An ink tank for storing recording ink comprises an ink storage section including an ink holding member for holding ink and substantially entirely occupying the ink storage space and a ventilation section having a vent hole communicating with the interior of the ink tank with atmosphere as discussed by the authors.

TL;DR: In this article, the liquid discharge head comprises a first liquid flow path communicating with a discharge opening for discharging liquid, a second liquid flowpath having a bubble-generating region in which bubbles are generated in the liquid by heating the liquid, and a movable member located between the first path and the bubble generating region, having a free end on the side of the discharge opening, the free end moving toward the first flow path by pressure exerted by bubbles generated in a bubble generator.

TL;DR: In this article, a plurality of substrates provided with ejection energy generating elements for generating energy for ejecting ink, are arranged on a supporting member, and a top plate is mounted on the substrate to cover all of the substrates to form ink flow paths.

TL;DR: A printing head has a plurality of heater boards, each of which includes a shift register to which printing data and selection data for selecting preheating pulse signals are applied as inputs as discussed by the authors.

TL;DR: In this article, the authors proposed a method for removing bubbles in a common liquid chamber to prevent bubbles from entering a nozzle by improving a property of removing bubbles to prevent them from entering the nozzle.