Abstract: A joining structure of a packaging container is divided into at least two packaging members, and the joining structure includes: first slits formed in a dividing direction and located on both side of at least one corner of a joining-side end of a first packaging member, the first packaging member and a second packaging member being joined to each other; an engaging corner formed at a joining-side end of the second packaging member, the engaging corner being engaged with each of the first slits and being located on an inner side of a corner of the first packaging member, the engaging corner being formed at a corner corresponding to the corner of the first packaging member; and a cover that continues to the engaging corner and is located to cover an outer side of a joining end of the first packaging member on an outer side of the first slits.

Abstract: Provided is an image forming device in which a wrapped body that is a paper bundle wrapped in wrapping paper is set into a paper housing, the wrapping paper is subsequently removed and the paper bundle is exposed, and paper is conveyed by one sheet in image forming, the image forming device including: a reader that reads an image on the wrapping paper; and a hardware processor that: compares the image on the wrapping paper, the image being read by the reader, and an image on each of various kinds of wrapping paper, the image being stored in a storage; reads, from the storage, paper setting associated to wrapping paper corresponding to the image on the wrapping paper, the image being read by the reader; and sets a conveyance condition and a process condition based on the paper setting.

Abstract: A sheet feeding apparatus includes: a stacking part capable of stacking a plurality of sheet packs including a bundle of stacked printing sheets being wrapped with a wrapping sheet; a side surface remover that removes the wrapping sheet on a side surface being a wall surface along a stacking direction of the printing sheets among the wall surfaces of the sheet pack for each of the plurality of sheet packs stacked on the stacking part, a sensor that detects whether an uppermost sheet stacked on the stacking part in a detection range is the wrapping sheet; and a conveyer that conveys the detected wrapping sheet to a path different from a path through which the printing sheet is conveyed in a case where the wrapping sheet has been detected by the sensor.

Abstract: Provided is an image forming device in which a wrapped body that is a paper bundle wrapped in wrapping paper is set into a paper housing, the wrapping paper is subsequently removed and the paper bundle is exposed, and paper is conveyed by one sheet in image forming, the image forming device including: a reader that reads an image on the wrapping paper; and a hardware processor that: compares the image on the wrapping paper, the image being read by the reader, and an image on each of various kinds of wrapping paper, the image being stored in a storage; reads, from the storage, paper setting associated to wrapping paper corresponding to the image on the wrapping paper, the image being read by the reader; and sets a conveyance condition and a process condition based on the paper setting.