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Newtonian, Colloidally Stable, Ultrasonic-Insensitive Charge Generating Layer Dispersion Compositions with Instantly Tunable Photosensitivity

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High-quality electrophotographic applications demand a photoconducting element that is “perfect” in many aspects:

1. defect-free, almost to the submicrometer level,

2. environmentally insensitive, and

3. possessing a well-defined photosensitivity that matches the electrophotographic rendering process.

The charge generation layer is typically coated from a preformed pigment dispersion. The stability, quality, and composition of that dispersion critically influence the production of that “perfect” photoconducting element.

This work describes the development of Newtonian, colloidally stable, ultrasonic-insensitive, charge generation layer dispersion compositions with instantly tunable photosensitivity. These dispersions enable robust photoconductor manufacturing processes and provide instantly accessible photospeeds ranging from 0.05 to 1.0 cm2/ergs (500–100 V photodischarge).

Document Type: Research Article

Publication date: 2006-01-01

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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