Patent ID: 6198491
Filing Date: 2001-03-06
Classification: B41J,G03G

Abstract:
An image forming apparatus for effecting an image exposure on an electrophotographic photosensitive member by a digital optical system device, comprising:charging means for charging said electrophotographic photosensitive member;electrostatic latent image forming means for forming a minute dot pattern corresponding to image data;developing means for bearing developer on a developer bearing member to convey the developer to a developing portion opposed to said photosensitive member and for forming a development electric field between said photosensitive member and said developer bearing member in said developing portion to develop a latent image on said photosensitive member with the developer;transfer means for transferring a developer image onto a transfer material;fixing means for fixing the developer image transferred on the transfer material;photosensitive member surface cleaning means for cleaning residual developer remaining on a surface of said photosensitive member after transferring;means for detecting temperature of said fixing means; andmeans for detecting a water vapor amount in a surrounding environment; whereinwhen a power supply of the apparatus is powered ON, and if a fact that the temperature of said fixing means is a predetermined temperature or lower is detected and if a fact that the water vapor amount in the surrounding environment is a predetermined water vapor amount or larger is detected, said charging means, optical system means for forming a minute dot pattern or minute line pattern, said developing means and said photosensitive member surface cleaning means are operated to abrade said photosensitive member under a state that a preparation of a starting operation of said electrostatic latent image forming means for image formation is not completed.