Patent ID: 9010923
Filing Date: 2015-04-21
Classification: B41F,B41J

Abstract:
1. A sheet conveying device which conveys sheets, comprising: a drum which rotates with a sheet wound around the outer circumferential surface thereof to convey the sheet; a pressing roller which is provided on the outer circumferential surface of the drum, presses the front surface of the sheet to bring the rear surface of the sheet into close contact with the outer circumferential surface of the drum; and a back tension application unit which sucks the front surface of the sheet at a position immediately before the sheet enters between the drum and the pressing roller to apply back tension to the sheet; wherein the back tension application unit includes wherein the back tension application unit sucks the front surface of the sheet such that the sheet which enters between the drum and the pressing roller travels along the tangent line to the outer circumference of the drum at a contact of the drum and the pressing roller, and wherein the guide surface is flat along the tangent line to the outer circumference of the drum at a contacting point of the drum and the pressing roller.