Liquid supply system and liquid supply vessel used for the same

Abstract

A liquid supply system includes a liquid supply vessel which having a liquid container of accommodating a liquid in a sealed space and a negative pressure producing member containing vessel which internally accommodates a negative pressure producing member capable of internally holding the liquid, has an atmosphere communicating port for communicating the negative pressure producing member with atmosphere and is capable of causing vapor-liquid exchange to discharge the liquid by introducing a gas into the liquid container by way of sections communicated with the liquid supply vessel. The liquid supply system has the communicated section in a plurality each capable of causing vapor-liquid exchange, thereby capable of supplying the liquid stably regardless of environmental changes.