| CPC G03G 21/1619 (2013.01) | 4 Claims |

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1. A structure for an image forming apparatus, the structure comprising a plurality of joined square pipes, wherein
four corner portions of each of the plurality of square pipes include:
three first corner portions formed by bending a single metal plate; and
one second corner portion including two edge portions of the metal plate and a welded portion where the two edge portions are joined, and
four or more through holes are formed in four side surfaces of at least one of the plurality of square pipes.
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