Patent ID: 7673959
Filing Date: 2010-03-09
Classification: B41J

Abstract:
1. An inkjet printing apparatus which performs printing using a printhead for discharging ink and an ink tank for supplying ink to the printhead, the ink tank being detachably attachable to the printhead, comprising: a recovery unit adapted to execute a recovery operation for discharging ink from the printhead; a measurement unit adapted to measure a time period between when an ink tank previously attached to the printhead is detached from the printhead and when an ink tank is subsequently attached to the printhead; a determination unit adapted to determine whether or not the ink tank subsequently attached to the printhead is the same as the ink tank detached from the printhead; a control unit adapted to control the recovery unit based on the time period measured by the measurement unit and the result determined by the determination unit; wherein, if the determination unit determines that the ink tank subsequently attached to the printhead is the same as the ink tank detached from the printhead, the control unit controls the recovery unit to execute the recovery operation in cases where the time period is longer than a first time period, and the control unit controls the recovery unit not to execute the recovery operation in cases where the time period is shorter or equal to the first time period, and if the determination unit determines that the ink tank subsequently attached to the printhead is different from the ink tank detached from the printhead, the control unit controls the recovery unit to execute the recovery operation regardless of the time period.