A line-type inkjet recorder for printing a desired image onto paper by discharging ink from plural nozzles provided in a head part, the inkjet recorder includes: an image data processing part for converting image data to be printed into print data for each of the nozzles; a temperature detection part for detecting a temperature of the head part and outputting head temperature information based on the detected temperature; and a head control part for, based on states of a continuous non-discharge nozzle and a continuous discharge nozzle adjacent thereto included in the nozzles and extracted based on the head temperature information from the temperature detection part and the print data from the image data processing part, controlling frequencies of idle discharge from the continuous non-discharge nozzle and continuous discharge nozzle extracted.