ELECTROGRAPHY

**Definition:** This place covers:

Materials, methods and machines for forming permanent, directly-visible pictures in conformity with an original picture or document by using intermediate, i.e. latent, imagewise patterns.

Examples of latent, imagewise patterns are:

If the invention is directed to electrophotographic copying/printing, which is mostly identified by features related to:

then such document should be classified in this subclass.

In this subclass, there are two different main classification sections, namely the chemical or materials part and the method and apparatus part.

Classification of materials for use in:

Classification of processes and machines for image forming images: