| 摘要 |
PURPOSE:To correct an image forming condition specific to each device optimizingly in a short time. CONSTITUTION:A semiconductor laser unit 6 generates a check pattern picture on a photosensing drum 9 based on a check pattern picture signal generated by a picture signal generator 13. In this case, after a controller 17 forms plural different image forming conditions, the controller 17 corrects the set image forming condition based on the read data. |
