| 摘要 |
An image forming apparatus has a main body for performing image forming operations. A document reader is above the main body and can displace between closing and opening postures. A coupling has a first end rotatably coupled to the main body and a second end coupled to the document reader for movement between a first posture to support the document reader in the opening posture and a second posture when the document reader is closed. A guiding surface at the document reader guides movement of the second end of the coupling. A stopper is supported for rotation between an interfering posture to interfere with the second end of the coupling and a freeing posture to free the second end. The second end is pushed into an escaping recess of the guiding surface by the stopper when the stopper is displaced from the interfering posture to the freeing posture.
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