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Abstract

A post-processing apparatus has an input terminal into which a first activation signal output from an image forming apparatus is input. A user switch is operated by a user. A generation circuitry is provided inside the post-processing apparatus. The generation circuitry, by turning on the user switch, generates a second activation signal corresponding to the first activation signal. A power source circuitry is activated in response to the first activation signal input into the input terminal. A post-processing mechanism performs a post-processing process on a sheet using an electric power supplied from the power source circuitry. When the image forming apparatus is in a state of being unable to output the first activation signal, in response to the second activation signal generated by the generation circuitry, the power source circuitry is activated.

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First Claim