Apparatus for transferring powder images and method therefor

Claim 1

A XEROGRAPHIC MACHINE COMPRISING IN COMBINATION A FRAME, AN ENDLESS BELT COMPRISING AN INNER ELECTRICALLY CONDUCTING LAYER AND AN PHOTOCONDUCTIVE INSULATING LAYER, MEANS OPERATIVELY CONNECTED TO SAID FRAME FOR MOVING SAID BELT ALONG A PREDETERMINED PATH SEQUENTIALLY THROUGH, FIRST, AN IMAGE STATION COMPRISING MEANS OPERATIVELY CONNECTED AND POSITIONED TO SAID FRAME TO FORM AN ELECTROSTATIC IMAGE ON THE OUTER LAYER OF SAID BELT; SECOND, A DEVELOPMENT STATION COMPRISING MEANS OPERATIVELY CONNECTED AND POSITIONED TO SAID FRAME FOR DUSTING ELECTROSTATICALLY CHARGED, MAGNETICALLY ATTRACTABLE POWDER PARTICLES ON THE ELECTROSTATIC IMAGE ON THE OUTER LAYER OF SAID BELT; THIRD, A TRANSFER STATION COMPRISING MEANS OPERATIVLEY CONNECTED TO SAID FRAME FOR CONTACTING IMAGE SUPPORT MATERIAL WITH THE OUTER LAYER OF SAID BELT, AN ELECTROMAGNET OPERATIVELY CONNECTED TO SAID FRAME AT THE POINT OF CONTACT OF SAID BELT AND SAID IMAGE SUPPORT MATERIAL AND MEANS TO ELECTRICALLY ENERGIZE SAID ELECTOMAGNET WITH HIGH AND LOW FREQUENCY ELECTROMAGNETIC CURRENTS WHILE SAID BELT AND SAID IMAGE SUPPORT MATERIAL ARE IN CONTACT TO EFFECT TRANSFER AND FUSION OF SAID IMAGE BODY TO SAID SUPPORT MATERIAL.