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Four-Beam Scanning Optical System With a Converting Function of Seven-Level Print Dot Density

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Multiple-beam scanning optical systems are widely used for high-speed and high-resolution printers. One of the requirements that the printer with several levels of print dot density has is conversion of intervals of scanning lines formed by multiple beams. For this purpose, we developed a converting lens system, which consists of two cylindrical lenses and a spherical lens, and designed a four-beam optical system with a converting function of seven levels in print dot density.

Document Type: Research Article


Affiliations: Research & Development Center Ricoh Printing Systems, Ltd., 1060, Takeda, Hitachinaka-City, Ibaraki-Pref. 312-8502, Japan

Publication date: March 1, 2008

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  • The Journal of Imaging Science and Technology (JIST) is dedicated to the advancement of imaging science knowledge, the practical applications of such knowledge, and how imaging science relates to other fields of study. The pages of this journal are open to reports of new theoretical or experimental results, and to comprehensive reviews. Only original manuscripts that have not been previously published, nor currently submitted for publication elsewhere, should be submitted.

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