| 摘要 |
An image producing apparatus includes a light-emitting element, a light-receiving section, a control section which controls the light-emitting element to emit a light by outputting a light-emitting control value to the light-emitting element, a recording section which records an ideal output value for every light-emitting control value, an output value acquiring section which acquires a reference output value outputted from the light-receiving section which has received the light from the reference region for every light-emitting control value, and an output section which outputs a difference output value between the reference output value and the ideal output value for every reference output value by comparing the reference output value matched with the same light-emitting control value.
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