Patent ID: 7014306

Claim:
A liquid reservoir apparatus comprising a storage which stores a liquid, a negative pressure introducing portion which introduces a negative pressure into said storage, a liquid intake portion which takes the liquid into said storage with the negative pressure introduced from said negative pressure introducing portion, a liquid storage chamber which is provided in said storage to hold the liquid stored in said storage, a liquid supply port which is provided to said storage to supply the liquid stored in said storage, a gas/liquid separating member which transmits only a gas therethrough, and negative pressure generating means for drawing air in said storage by suction to effect the negative pressure, wherein a plurality of thin plates are disposed in said liquid storage chamber at predetermined intervals to form a storing portion in which predetermined capillary force is generated, wherein a predetermined gap is formed between said storing portion and an outlet, so as to form a guiding portion in which capillary force is generated, wherein the generated capillary force is stronger than the capillary force of said storing portion, and wherein said guiding portion is formed of part of said thin plates forming said storing portion and an inner wall of said liquid storage chamber.