Patent ID: 7708374
Filing Date: 2010-05-04
Classification: B41J

Abstract:
1. An inkjet image forming apparatus, comprising: an inkjet head including a nozzle portion having a length in a main scanning direction that is at least equal to a width of a printing medium; a conveying unit to convey the printing medium; a cap member to cap the nozzle portion; a cap driving unit to move the cap member to a capping position where the nozzle portion is capped and an uncapping position where the cap member is separated from the nozzle portion when the driving motor rotates in a second direction and in a first direction, respectively; a driving motor connected to the cap driving unit and the conveying unit, wherein the driving motor drives the cap driving unit to move the cap member to the uncapping position and the conveying unit to convey the paper in the sub-scanning direction to perform a printing operation by rotating the first direction, and the driving motor drives the cap driving unit to move the cap member to the capping position by rotating in the second direction; and a first clutch to block a driving force of the driving motor in the first direction to the cap driving unit when the cap member is located at the uncapping position such that the cap member is maintained in the uncapping position while the conveying unit conveys the printing medium.