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One Step Electrophotography Process Using Toner Charged by Photoinduction

IP.com Disclosure Number: IPCOM000105217D
Original Publication Date: 1993-Jun-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 1 page(s) / 23K

Publishing Venue

IBM

Related People

Diaz, AF: AUTHOR [+4]

Abstract

A black photoactive toner is used in an Electrophotography (EP) process where imaging and development occur in one step. In this process the toner is coated onto a transparent conductive drum. The toner contains a photoconductive dye which provides the black coloring and is activated by illumination. The printhead is placed inside the drum and the toner is imaged at the correspondence point between the drum and the paper. At this correspondence point there is a gap between the drum and the paper and there is a ground plane on the face of the paper opposite the drum. A field is applied between the drum and the ground plane to drive the illuminated toner across the gap to the paper.

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One Step Electrophotography Process Using Toner Charged by Photoinduction

      A black photoactive toner is used in an Electrophotography (EP)
process where imaging and development occur in one step.  In this
process the toner is coated onto a transparent conductive drum.  The
toner contains a photoconductive dye which provides the black
coloring and is activated by illumination.  The printhead is placed
inside the drum and the toner is imaged at the correspondence point
between the drum and the paper.  At this correspondence point there
is a gap between the drum and the paper and there is a ground plane
on the face of the paper opposite the drum.  A field is applied
between the drum and the ground plane to drive the illuminated toner
across the gap to the paper.

Disclosed Anonymously.