| 摘要 |
PROBLEM TO BE SOLVED: To lighten human and temporal burden for controlling the quantity of toner transferred to transfer paper. SOLUTION: Standard image density information is previously stored in a storage part 12 and further image density information is stored by a density detection means 6. An arithmetic control part 11 compares and operates the image density information detected by the detection means 6 with the standard image density information as necessary and automatically adjusts at least one of the potential by electrification of a photoreceptor 3, developing bias potential, exposure energy quantity and transfer current through a feed means 7 controlling the feed of an electrifying means 1, a developing means 4 and a transfer means 5 or an exposure means 2 controlling the exposure energy quantity based on the compared result. As a result, the image density on the desired transfer paper is automatically obtained. |
