Patent ID: 7971988
Filing Date: 2011-07-05
Classification: B41J

Abstract:
1. An image forming apparatus, comprising: an endless conveyance belt having an outer periphery surface which serves as a conveyance surface for a recording medium; and a recording head for ejecting ink onto a recording medium from a nozzle surface opposing the conveyance surface of said conveyance belt, wherein a recording medium retained on the conveyance surface of said conveyance belt is discharged to a discharge unit by means of a conveyance force thereof, a sticking layer for sticking to the recording medium is formed on the outer periphery surface of said conveyance belt, and until a leading edge and a termination edge opposite the leading edge of the recording medium conveyed on said conveyance belt passes a region opposing the nozzle surface of said recording head, a sticking force exerted from the sticking layer of said conveyance belt onto the recording medium is set to be greater than the weight of a part of the recording medium protruding from a termination edge of a retaining portion that retains the recording medium, to downstream side in a conveying direction, wherein is satisfied when said sticking force is defined by while said weight is defined by where La: length of a part of the recording medium protruding from the termination edge of said retaining portion toward the downstream side in the conveying direction in a state that the termination edge of said recording medium aligns with the termination edge of the region opposing the nozzle surface of said recording head.