| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat developing device having a simple and compact structure and capable of stably keeping the uniform temperature distribution of a material heating means for a long time. SOLUTION: In the heat developing device for performing the heat development of the photosensitive heat developable material by bringing into contact with the material heating means supported at both ends by a side plate, and end part heating means for heating both end parts of the material heating means inside the side plate is arranged.
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