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The Effect of Relative Humidity on the Toner in the Developing Process

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In the image developing process, the latent electrostatic image on the photoconductive surface is converted into visible by the deposition of the toner particles on the photoconductive surface. The toner is either dual components or mono-component developers.

In the mono-component development system, the magnetic toner is held by the magnetic forces on the sleeve, the toner is moved around the sleeve spaced several hundred micrometer from the photoreceptor, under the electric field the magnetic toners jump over the gap onto the photoconductor.

It is found that, the optical density and the background of the printed image is dependent on the relative humidity of the toner. Hence, we investigate the causes by the measurement of Q/M or Q/A of the toner under different humidity. As the humidity increases, the water film will induce the instability of the electric charge, so the Q/M will decreases, but Q/A. increases.

Document Type: Research Article

Publication date: 2001-01-01

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  • 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.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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