A cartridge, detachably attached to a recording apparatus, includes a recording sheet container. The recording apparatus includes a sheet turning device. When a recording sheet is conveyed from the cartridge to an image forming section, the sheet turning device turns the recording sheet around an axis parallel to a normal line to the recording surface of the recording sheet. The longitudinal direction of the recording sheets contained in the recording sheet container is generally perpendicular to the longitudinal direction of the recording sheet being subjected to recording in the image forming section.