Patent ID: 7559622

Claim:
An inkjet printer, comprising: a plurality of inkjet heads for recording one or more colors on a document; a determining part configured to determine whether a first test-jetting operation is required to be executed by one of the plural inkjet heads designated to record one of the colors on the document; and a recording control part configured to instruct the designated inkjet head to execute the first test-jetting operation prior to recording the one color when the determining part determines that the first test-jetting operation is required to be executed by the designated inkjet head, wherein the determining part is further configured to determine whether the execution of the first test-jetting operation is required during a period of waiting for a command to record the one color on the document, and the recording control part is further configured to instruct the inkjet head determined to require the execution of the first test-jetting operation to execute the first test-jetting operation and the determining part is further configured to cancel the first test-jetting operation for the one color when recording of another color is designated during the first test-jetting operation for the predetermined color.