Patent ID: 6694108
Filing Date: 2004-02-17
Classification: G03G

Abstract:
An image forming apparatus comprising:an electrophotographic photosensitive member; charging means for imparting predetermined potential to said electrophotographic photosensitive member; exposure means for forming an electrostatic latent image on said electrophotographic photosensitive member; developing means for developing the electrostatic latent image with toner; transferring means for transferring a developed toner image to a transfer material; fixing means for fixing the toner image on the transfer material; exhausting means for effecting an exhaust of heat in said image forming apparatus; a filter provided in proximity to said exhausting means for filtering exhaust from said exhausting means; and a temperature sensor at a predetermined location near said electrophotographic photosensitive member, wherein when a temperature detected by said temperature sensor is Ts, and when relative to predetermined temperatures T1 and T2, T2>Ts&gE;T1, a number of image forming sheets per unit time is decreased, and when Ts&gE;T2, an image forming operation is stopped.