To provide a method of processing inkjet ink which has a printing suitability to various recording media, and whereby an image superior in color bleeding resistance, beading resistance and image gloss can be obtained, and moreover surge of a paper is prevented also when recording is carried out to the paper medium such as a coated paper for printing, and to provide a recorder of inkjet ink equipped with the same, and an inkjet recording method using the same.

The method of processing the inkjet ink is provided which has a process of removing or separating oxygen contained in the inkjet ink between a container and an inkjet head part linked to the container. The container is filled with the inkjet ink which contains water and at least a polymer compound that has a plurality of side chains in a hydrophilic main chain and is capable of cross-linking between the side chains by irradiation of active energy rays.