| 摘要 |
PROBLEM TO BE SOLVED: To prolong the forming interval of a toner image and to reduce load imposed on a device without lowering density control accuracy by executing processing so that paper sheet to be slip sheet output is not counted as the prescribed number of paper. SOLUTION: In the case that slip sheet is outputted at the time of a slip sheet mode that an image ratio is supposed to be low, control is executed so that the slip sheet is not included in the prescribed number of paper sheets when the number of paper sheet used for forming the toner image (latent image) is counted. That means, the paper is passed (S304), it is checked whether the mode is the slip sheet mode or not (S305). In the case of YES, it is checked whether the slip sheet is outputted more or not (S306). When the slip sheet is outputted, the number of sheets is not counted. When the slip sheet is not outputted (S306, NO), the number of sheets is counted only at that time (S307). Therefore, the forming interval of the toner image can be more prolonged than a case that the number of sheets is counted by including the slip sheet. Thus, the load imposed on the device is reduced without lowering the density control accuracy. |
