Patent ID: 8746997

Claim:
An apparatus comprising: a holding unit configured to hold a roll of a sheet having splice portions; a printing unit configured to record an image on the sheet while the sheet is conveyed; a detection unit, including at least one optical sensor having an emitting device that irradiates light on a surface of the sheet and a receiving device that receives the light from the surface of the sheet, configured to detect an indentation on the sheet that is formed in addition to the splice portion; and a control unit configured to control so as to prevent the printing unit from recording an effective image at or in the vicinity of the splice portion and at or in the vicinity of the indentation position, based on a detection result of the detection unit, wherein the detection unit is configured to detect the indentation by checking whether a signal representing the received light has signal changes that are spaced apart by a predetermined period of time required for the sheet to move by a distance equivalent to a width of the splice portion in a conveyance direction.