| 摘要 |
PURPOSE:To execute circuit adjusting work automatically at the replacement of an image carrier and to simplify the work remarkably by forming a mark on the outside of an image area of the image carrier and detecting the mark at the loading of the image carrier to a recording device to select and organize a proper circuit. CONSTITUTION:A carbon conductive layer 61 is formed on the outside of the image area of a photosensitive body 20 and the mark 62 is formed on the carbon conductive layer 61. The mark 62 is similar to a bar code and includes data such as the performance information of the photosensitive body 20, especially the sensitivity and accepted voltage. When the photosensitive body 20 is replaced, the mark 62 is detected by a prescribed photosensor and the quantity of light, charged current, a grid, and a bias voltage which are programmed in the body are automatically switched by turning transistor switches to organize a proper circuit. Consequently, the circuit adjusting work is automatically executed without worker's awareness and the work can be remarkably simplified. |
