| 摘要 |
PURPOSE:To correct automatically an image forming condition and to form an stabilized image having good quality by storing in advance the change with lapse of time of a photosensitive material, the sensitivity difference of a manufacturing lot, etc. CONSTITUTION:An electrophotograph film cassette 1 contains the photosensitive material, and also stores a parameter regarding the date of manufacture and the image formation in a storage part 1a. The operating part 2d of a body 2 of an electrophotographic copying device read out the date of manufacture from the cassettte 1 calculates an elapsed time from the information of a timepiece 2c, and also calculates a corrected image forming condition. Also, an image forming process control part 2e controls the image forming condition of a process part 2f basing on the result of operation of the operating part 2d. |
