| 摘要 |
PROBLEM TO BE SOLVED: To minimize adjustment burden and electrophotographic material loss in the case where a plurality of photograph printing devices are provided. SOLUTION: A photograph printing system has the plurality of photograph printing devices PP and periodically adjusts image exposure conditions for each of the photograph printing devices PP based on the result of the density measurement of a test print formed on a photographic sensitive material PM, wherein the photograph printing devices PP that are identical or similar in device configuration, function, or handling and hence they have similar quantities in change in print characteristic with time during the identical period are grouped together and the test print is produced by some of the grouped photograph printing devices PP, and data for adjusting the image exposure conditions obtained by the test print, is applied to all the other photograph printing devices PP belonging to the same group, and thus the image exposure conditions are adjusted. COPYRIGHT: (C)2009,JPO&INPIT
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