| 摘要 |
A double-sided image forming apparatus, including: an image forming section; a sheet supplying section, which supplies a sheet to the image forming section, including paired registration rollers which convey the sheet supplied from the sheet supplying section to the image forming section; a flipping conveyance route which conveys the sheet carrying an image formed by the image forming section on a front side, and which flips the sheet to re-supply to the paired registration rollers; and a control section which controls to change a length of the flipping conveyance route, and controls to convey the sheet based on a size of the sheet.
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