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The Relationship Between Paper Properties and Fuser Oil Uptake in High-Speed Digital Xerographic Printing

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Fusing plays a vital role in achieving high resolution print quality in high-speed digital xerographic printing. The fuser roll is typically coated with a release agent so as to facilitate clean splitting of the fused image and paper as it exits the fusing nip. If oil uptake by paper is excessive, a fuser oil depletion problem will develop with time and the fuser roll will become insufficiently coated with oil. In this study, the oil uptake performance of a wide range of commercial papers was evaluated using a prototype highspeed xerographic fuser. The key paper properties that control oil uptake are identified using a partial least squares regression model. A mechanistic view of how these paper properties interact to affect oil uptake is explored in terms of the wetting of oil on paper and in terms of a contact area index (CI). Surface free energy of paper was found to be the dominant property in describing the wetting of oil on paper. CI, based on theory from contact mechanics, is used to describe the degree of contact between paper and the fuser roll at the nip. A positive correlation between CI and oil uptake suggests that roughness and bending stiffness have significant influences on oil uptake.

Document Type: Research Article

Publication date: January 1, 2006

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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