Patent ID: 7527349

Claim:
An inkjet image forming apparatus, comprising: an inkjet head including a nozzle unit having a length in a main scanning direction equal to or greater than a width of a printing medium; a platen facing the nozzle unit to support a backside of the printing medium, to form a delivery path with the nozzle unit, and to be moveable between a printing position and a maintenance position; a wiper to wipe the nozzle unit; and a cap member to cap the nozzle unit, wherein the printing position constitutes the delivery path, the maintenance position is spaced apart from the printing position such that when the wiper and the cap member access the nozzle unit, the platen is located at an opposite side of the nozzle unit with respect to the delivery path, and a movement path of the platen between the printing position and the maintenance position comprises a parallel interval that is substantially parallel to the delivery path in which a gap between the platen and the nozzle unit remains constant and a sloped interval in which the gap between the platen and the nozzle unit changes.