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Micro Scale Temperature Field Analyses for Robust Fusing System Design in High-Speed Heavy-Duty Laser Printers

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Recently, the development of high-speed heavy-duty laser printers is rapidly shifting from a conventional test-based approach to a virtual design procedure using numerical analyses because the later approach is more time efficient. The authors have developed a three-dimensional (3-D) analysis for a roll fuser design.

Peculiar difficulties in a high-speed heavy-duty roll fuser design are due to the nature of significant heat supply in a nip region during short period and an insufficiently short period for temperature recovery in an outer nip region. Therefore, the only use of the 3-D analysis gives little reliability growth.

The authors analyze the thermal mechanisms, and then identify problems giving the difficulties for the fuser design. The problems are significant temperature gradient occurrences, and their rapid and complex changes in the fuser, toner and paper in micro scale distance in the nip and the outer nip regions during printing. For instance, even in the outer nip region, several degrees to several ten degrees Celsius temperature difference occurs in several hundred microns below a fuser roll surface; in consequence reduces reliability due to high temperature occurrence on an interface between a surface layer and a core metal in the heat roll.

Combining the 3-D analysis and the analysis for the thermal mechanisms, the authors obtain knowledge for the robust fusing system design in the high-speed heavy-duty laser printers.
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Document Type: Research Article

Publication date: 01 January 2004

More about this publication?
  • 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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