Patent ID: 6314252
Filing Date: 2001-11-06
Classification: G03G

Abstract:
An image forming apparatus comprising:image forming means for forming a developer image on a recording medium;fixing means for heating and pressing the developer image formed by the image forming means to fix the developer image on the recording medium;a paper feed section for selectively feeding various types of recording media having different sizes;convey means for conveying the recording medium fed from the paper feed section through the image forming means and the fixing means;a size detector for detecting a size of the recording medium fed from the paper feed section;a temperature detector for detecting a surface temperature of the fixing means; andcontrol means for controlling a fixing temperature of the fixing means in accordance with a predetermined reference temperature, and controlling image forming operation of the image forming means and recording medium convey operation of the convey means in accordance with a size of a recording medium to be fed next and the surface temperature of the fixing means which is detected by the temperature detector;wherein the control means includes means for stopping the image forming operation of the image forming means and the recording medium convey operation of the convey means so as to set a standby state, when the size of a recording medium to be fed next is larger than a predetermined size according to the surface temperature of the fixing means which is detected by the temperature detector, and for starting the image forming operation of the image forming means and the recording medium convey operation of the convey means when the detected surface temperature decreases to a temperature according to the size of the next recording medium.