Multi-wavelength laser which avoids excessive light absorption by cyan pigment in image-on-image electrophotography
US5725980A · kind A · utility
0Cited by
4References
5Claims
0Family size
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Inventor
Key dates
| Filing date | Jan 21, 1997 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Jan 21, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Full process color imaging using black, magenta, cyan and yellow toners. A photoreceptor is utilized which is responsive to two beams of a dual wavelength laser diode exposure device or of Light Emitting Diode (LED) exposure devices operating at two different wavelengths. One of the light beams emitted by the exposure device is utilized to imagewise discharge the photoreceptor through the magenta and yellow toners while the other beam is used to imagewise expose the photoreceptor through the cyan toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.