| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of predicting the occurrence of change in image density and reduction in resolution during image formation, and preventing the occurrence of them.SOLUTION: An image forming apparatus includes: an electrophotographic photoreceptor 101; latent image forming means for forming an electrostatic latent image on the electrophotographic photoreceptor, developing means for visualizing the electrostatic latent image formed by the latent image forming means, using toner; transfer means for transferring the image visualized by the developing means to a medium for transfer; and cleaning means for removing a toner remaining on the surface of the electrophotographic photoreceptor. The image forming apparatus further includes: electrophotographic photoreceptor temperature adjustment means capable of adjusting a temperature of the electrophotographic photoreceptor; torque measurement means 113 for measuring a driving torque value of the electrophotographic photoreceptor; and means for measuring the driving torque value of the electrophotographic photoreceptor, the driving torque value being used when the image has been formed by changing the temperature of the electrophotographic photoreceptor, and storing the degree of deterioration and/or a torque value of the electrophotographic photoreceptor calculated on the basis of a change in the torque value. |
