INKJET PRINTER AND LIQUID SUPPLY DEVICE

To provide an inkjet printer including an ink supply device having a new structure.SOLUTION: An inkjet printer of the invention includes: an ink head which discharges an ink I; and an ink supply device 40 which stores the ink I to be supplied to the ink head. The ink supply device 40 includes: a hollow ink tank 41 which defines an ink storage chamber 44 in which the ink I is stored; an ink replenishment port 42A through which the ink I is fed; an ink outflow port 45A from which the ink I flows toward the ink head; an expansion/contraction member 47 which is housed in the ink storage chamber 44 with the ink I and extends and contracts within the ink storage chamber 44; and a pump 49 which is connected to the expansion/contraction member 47 and causes a fluid F to flow into the expansion/contraction member 47 to expand the expansion/contraction member 47.SELECTED DRAWING: Figure 3 【課題】新規な構成のインク供給装置を備えたインクジェットプリンタを提供する。【解決手段】本発明のインクジェットプリンタは、インクＩを吐出するインクヘッドと、前記インクヘッドに供給するインクＩを貯留するインク供給装置４０と、を備える。インク供給装置４０は、インクＩが貯留されるインク貯留室４４を区画する中空のインクタンク４１と、インクＩが補充されるインク補充口４２Ａと、インクヘッドに向かってインクＩが流出するインク流出口４５Ａと、インクＩと共にインク貯留室４４に収容され、インク貯留室４４の内部で伸縮する伸縮部材４７と、伸縮部材４７に接続され、伸縮部材４７の内部に流体Ｆを流入させることによって伸縮部材４７を膨張させるポンプ４９と、を備える。【選択図】図３