| 摘要 |
PROBLEM TO BE SOLVED: To get over the shortcoming of an exposure unit using a line print head, which performs exposure while displacing in parallel with an instant film. SOLUTION: This exposure unit 10 performing image-exposure on a photosensitive medium 16 with a light emitting body for emitting light based on image information is equipped with an exposure belt 12 where a plurality of light emitting bodies are arranged in a belt state, a driving part 14 circularly moving the belt 12, a detection part 18 detecting the relative position of the belt 12 to the medium 16, and a light emission control part 20 making the respective light emitting bodies of the belt 12 emit light to the medium 16 based on the image information and the relative position detected by the detection part 18. |
