Patents Examined by Charles E. Van Horn
  • Patent number: 3933491
    Abstract: An imaging system using a migration imaging member comprising a softenable photoconductive material with a fracturable layer of migration marking material contacting the softenable photoconductive material and having the fracturable layer spaced apart from at least one surface of the softenable layer and typically contiguous to the free surface of the softenable material. Imaging with a member comprising a softenable photoconductive binder material with marking particles therein dispersed throughout said softenable binder is also disclosed. Imaging is accomplished by providing a migration force across the migration imaging member and developing the member whereby the migration marking material migrates in depth in the softenable layer in imagewise configuration.
    Type: Grant
    Filed: September 20, 1971
    Date of Patent: January 20, 1976
    Assignee: Xerox Corporation
    Inventors: William L. Goffe, Joseph Mammino