PRESSURE SENSING MECHANISM OF INK SUPPLY DEVICE AND ADJUSTMENT METHOD OF THE SAME

To provide a pressure sensing mechanism of an ink supply device that can suppress variation in pressure control of ink that is caused by variation of dimensions of components and variation of positions of sensors, and an adjustment method of the mechanism.SOLUTION: A pressure sensing mechanism of an ink supply device 20 is provided with a member 34 with flexibility that covers an opening formed in a storage chamber 32 for storing ink and is varied by an ink pressure in the storage chamber, a lever member 42 that is displaced accompanying variation of the member with flexibility, and a sensor 48 that senses a displaced/displacement state of displacement of the lever member. The lever member has a lever main body 42a that separates from the member with flexibility and extends along a surface of the member with flexibility, and has at a tip part thereof a part 42c to be sensed by the sensor, a contact part 42b that protrudes from the lever main body toward a side of the member with flexibility, so that a tip thereof contacts the member with flexibility, and an adjustment part 44 that can change a protrusion length of the contact part.SELECTED DRAWING: Figure 7 【課題】部品寸法のばらつきやセンサ位置のばらつきによって生じるインクの圧力制御のばらつきを抑えることができるインク供給装置の圧力検知機構及びその調整方法を提供する。【解決手段】インクを貯留する貯留室３２に形成された開口を覆い、前記貯留室内のインク圧によって変動する可撓性部材３４と、前記可撓性部材の変動に伴って変位するレバー部材４２と、前記レバー部材の変位状態を検知するセンサ４８と、を備えたインク供給装置２０の圧力検知機構。前記レバー部材は、前記可撓性部材から離隔して前記可撓性部材の表面に沿って伸長し、先端部に前記センサによる被検知部４２ｃを有するレバー本体４２ａと、前記レバー本体から前記可撓性部材側に突出し、先端が前記可撓性部材に当接する当接部４２ｂと、前記当接部の突出長さを変更可能な調整部４４と、を有する。【選択図】図７