Patent ID: 9235186
Filing Date: 2016-01-12
CPC Classification: G03G

Claim Text:
1. An electrophotographic image forming apparatus comprising: a rotatable member; a web configured to remove a toner, deposited on the rotatable member, in a cleaning position; a mechanism configured to feed an unused portion of the web to the cleaning position every predetermined number of times of an image forming process; a contact portion configured to contact a surface of the web; a plurality of displacing portions formed in different positions with respect to a movement direction of the web and configured to permit displacement of the contact portion; a detecting portion configured to detect the displacement of the contact portion at each of the displacing portions; a notifying portion configured to notify an exchange of the web depending on an output of the detecting portion; a first counting portion configured to count the number of times of the image forming process executed after the contact portion is displaced at each of the displacing portions; a prohibiting portion configured to prohibit the image forming process when the number of times of the image forming process counted by the first counting portion reaches a number of prohibition; and a second counting portion configured to count the number of times of the image forming process executed after the contact portion returns to a contact state with the surface of the web, wherein the prohibiting portion prohibits the image forming process when the detecting portion detects the displacement of the contact portion when the number of times of the image forming process counted by the second counting portion is less than the predetermined number, and wherein the notifying portion prompts the exchange of the web when the detecting portion detects the displacement of the contact portion when the number of times is not less than the predetermined number.