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Paper: Evaluations of toner supply capabilities for some typical two-component developing systems

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Two-component developing system has an advantage in durability for high speed and heavy-duty use in an electrophotographic laser printer. For achieving high speed and heavy duty printing, the most important factor is toner supply capability from developing rolls to a photo-conductor surface.

In this study, the capability with print speed for each method on the two-component developing system employing magnet rolls composed of rotating sleeves with stationary core including a donor rolls system is examined. For the examinations, some assumptions for factors, which affects to the toner supply capability, and toner mass on the photo-conductor are made.

As a result, we found typical speed ranges and their characteristics for the toner supply capability in the two-component developing systems. 700 mm/s print speed can be achieved by the examined methods. The print speed exceeding 1500 mm/s can be achieved by a method of two-roll use of the rotating sleeve with stationary core magnet rolls of 50 mm diameters with different rotation direction.

Document Type: Research Article

Publication date: 2007-01-01

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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