| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device where image formation is carried out at a stable toner density and sheet reflection density regardless of the printed ratio. SOLUTION: In the device, control of toner replenishing of a toner replenishing part and agitation by an agitating member of a developing device and control of rotating speed of a developing sleeve and developing potential are carried out on the basis of the quantity of attached toner. Furthermore, developing bias potential that is applied to the developing device is corrected on the basis of the reflection density of: reference toner image pattern 1 that is developed without carrying out exposure on an image carrier; and a reference toner image pattern 2 that is developed at a specified exposure quantity. |
