An image forming apparatus includes an image forming unit for forming an image; a first electrical substrate having an electric circuit for electric power supply to the image forming unit; a second electrical substrate disposed above the first electrical substrate and having an electric circuit for operating the image forming unit; an opening formed above the first electrical substrate in fluid communication with ambient air; and a partition member for partitioning the first electrical substrate and the second electrical substrate and for forming an air flow path from the first electrical substrate to the opening.

 
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< Image forming apparatus with power control to sheet processing unit

< Radiological imaging apparatus and method

> Electrophotographic photosensitive drum having caulked flanges, process cartridge having such a drum, and image forming apparatus having such a process cartridge

> Verification of image data

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