IMAGE FORMATION APPARATUS

To provide an image formation apparatus which prevents the early replacement of a consumable supply such as a developer cartridge that has not been used yet.SOLUTION: An image formation apparatus includes: an opening/closing cover which covers an attachment part to which a consumable supply for image formation is attached; a locking part which locks the opening/closing cover into the close state; an electric driving part which releases locking of the locking part; a driving circuit which drives the electric driving part; a determination part which determines that the attached consumable supply should be replaced; and a control part which sends a signal for releasing locking of the locking part to the driving circuit when receiving the signal of determining that the consumable supply should be replaced from the determination part, and drives the electric driving part to release locking of the locking part.SELECTED DRAWING: Figure 5 【課題】未だ使用可能な現像剤カートリッジ等の消耗品の早期交換を防止する画像形成装置を提供する。【解決手段】画像形成のための消耗品を装着する装着部を覆う開閉カバーと、前記開閉カバーを閉状態にロックするロック部と、前記ロック部のロックを解除する電動駆動部と、前記電動駆動部を駆動する駆動回路と、装着されている前記消耗品が交換すべき状態となったことを判定する判定部と、前記判定部から前記消耗品が交換すべき状態となったことを判定する信号を受けた際に、前記ロック部のロックを解除する信号を前記駆動回路に送り、前記電動駆動部を駆動して前記ロック部のロックを解除する制御部とを有する画像形成装置。【選択図】 図５