Image forming method and apparatus for setting an image forming parameter based on a printed medium

摘要

The type of printing medium on which an image will be formed is discriminated based upon the image of the medium surface read by an image reading unit for reading the surface as an image. If the discriminated medium type is other than a prescribed printing medium, the image is formed without changing an image formation parameter. When the type of printing medium and the state of the surface are discriminated, image formation can be performed in the most stable image forming mode if an abnormality occurs.