Incremental charging method to elucidate the role of (+) trapped charges near the OPC surface in electrostatic image defect formation
Abstract:An incremental charging method was used to investigate one source of electrostatically induced image defects that produce image ghosting and image spread or blurring. Experimental evidence shows that charge carriers accumulate at the photoconductor surface with each image exposure and that a double charge layer forms at the CTL surface in the exposed (imaged) portion of the OPC drum. These charge carriers are liberated by reversing the surface potential polarity and migrate toward the substrate. The freed positive carriers are neutralized within the charge generation layer by electrons that are injected from the substrate. The incremental charging method attempts experimentally to quantify the charge carrier density in the subsurface layer and to determine the charge neutralization site upon reverse photoconductor charge.
Document Type: Research Article
Publication date: 2007-01-01
For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.
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