An inkjet recording device comprising: a recorder that discharges an ink to a recording medium from nozzles disposed in each of recording heads; and a setting section that is configured to perform, for the respective recording heads, setting relevant to adjustment of an amount of the ink to be discharged from nozzle groups each constituted of at least a part of the nozzles, which are disposed in each of the recording heads, wherein the recording heads are disposed such that arrangement regions of the nozzle groups in a predetermined direction, the nozzle groups corresponding to the respective recording heads, include regions different from one another, and ink dischargeable regions are connected to one another to be continuous in the predetermined direction, and the setting section is configured to perform: a first adjustment operation, thereby, based on ink discharge amount information on a distribution in the predetermined direction of ink discharge amounts that are discharged from the nozzle groups based on image data having a predetermined density, performing the setting for the respective recording heads such that at each joint of joints in the nozzle groups in the predetermined direction, a difference between representative values of the ink discharge amounts satisfies a predetermined continuity condition, each joint being formed by a pair of the nozzle groups, and a representative value of the ink discharge amounts of all the nozzle groups satisfies a predetermined discharge amount condition for the predetermined density; wherein the predetermined discharge amount condition may be in a reference range r, or being in the reference range r and in a predetermined range from the center value of the reference range r, and characterized in that the setting section is configured to perform after the first adjustment operation, a second adjustment operation, thereby adjusting at least a part of the setting, which has been performed for the respective recording heads, such that a difference between a maximum value and a minimum value of the ink discharge amounts of the nozzle groups reduces. a recorder that discharges an ink to a recording medium from nozzles disposed in each of recording heads; and a setting section that is configured to perform, for the respective recording heads, setting relevant to adjustment of an amount of the ink to be discharged from nozzle groups each constituted of at least a part of the nozzles, which are disposed in each of the recording heads, wherein the recording heads are disposed such that arrangement regions of the nozzle groups in a predetermined direction, the nozzle groups corresponding to the respective recording heads, include regions different from one another, and ink dischargeable regions are connected to one another to be continuous in the predetermined direction, and the setting section is configured to perform: a first adjustment operation, thereby, based on ink discharge amount information on a distribution in the predetermined direction of ink discharge amounts that are discharged from the nozzle groups based on image data having a predetermined density, performing the setting for the respective recording heads such that at each joint of joints in the nozzle groups in the predetermined direction, a difference between representative values of the ink discharge amounts satisfies a predetermined continuity condition, each joint being formed by a pair of the nozzle groups, and a representative value of the ink discharge amounts of all the nozzle groups satisfies a predetermined discharge amount condition for the predetermined density; wherein the predetermined discharge amount condition may be in a reference range r, or being in the reference range r and in a predetermined range from the center value of the reference range r, and characterized in that the setting section is configured to perform after the first adjustment operation, a second adjustment operation, thereby adjusting at least a part of the setting, which has been performed for the respective recording heads, such that a difference between a maximum value and a minimum value of the ink discharge amounts of the nozzle groups reduces.