Patent ID: 9004256
Filing Date: 2015-04-14
Classification: B65H,G07D

Abstract:
1. A medium storing device comprising: a drum winding a medium and storing the medium around a circumference face of the drum; a delivering roller sending the medium coming from an inlet/outlet port for winding so as to send the medium to said drum, and returning the medium unwound from said drum to said inlet/outlet port for return; a monitor monitoring a conveying path for the medium between a winding start position of said drum and said delivering roller, said monitor monitoring the conveying path regardless of a rotation amount of said drum obtained in winding, said monitor including the optical axis being arranged across the conveying path, said sensor being rendered conductive or non-conductive in accordance with whether or not the optical axis is obstructed by the medium, said controller monitoring whether said sensor is conductive or non-conductive to thereby determine whether or not the medium on the conveying path is abnormal; and a guide guiding the medium from a vicinity of the inlet/outlet port to a vicinity of said drum, said delivering roller being arranged in a middle of said guide, the optical axis being arranged to pass a tip end of said guide near said drum.