Inkjet recording apparatus

An inkjet recording apparatus comprising:

• a recording head having an ink ejection surface in which nozzles for ejecting ink onto a recording medium are opened;
• a head driving part for vibrating a liquid level of ink within each nozzle to generate ink drops;
• a cap member which is settable to and removable from the ink ejection surface and which covers the ink ejection surface;
• a humidifying part for humidifying interior of the cap member;
• a cap moving mechanism for moving the cap member selectively between a capping position for coverage of the ink ejection surface and a non-capping position for retraction from the ink ejection surface;
• a controller for controlling operations of the recording head, the head driving part, the humidifying part, and the cap moving mechanism;
• and
• a storage part for storing control tables related to operations of the head driving part and the cap moving mechanism, wherein
• the controller is enabled to execute pre-ejection vibrations for vibrating the liquid level to a specified times of vibrations without executing ink ejection at a start time of ink ejection from the nozzles,
• the control tables include a non-capping period table in which the number of vibrations is increased based on a non-capping period of the ink ejection surface and a capping period table in which the number of vibrations is decreased based on a capping period of the ink ejection surface, and
• in response to respective lengths of the non-capping period and the capping period from an end of ink ejection through the nozzles until a start of next ink ejection, the controller sets the number of vibrations for the pre-ejection vibrations at a start time of next ink ejection by using the non-capping period table and the capping period table.