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Proceedings Paper

Integrated laser diode controller module for high-speed half-tone image printing
Author(s): Masaaki Ishida; Hidetoshi Ema; Susumu Imagawa; Yoshinobu Takeyama
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Paper Abstract

Achieving good halftone reproduction in laser printing requires multi-level modulation of laser diodes. We proposed a hybrid modulation method that is basically pulse-width modulation (PWM) supplemented by intensity modulation (IM). This method is implemented as an IC, resulting in a small, high-speed LD controller module that can be mass produced at comparatively low cost.

Paper Details

Date Published: 29 December 1993
PDF: 8 pages
Proc. SPIE 1987, Recording Systems: High-Resolution Cameras and Recording Devices and Laser Scanning and Recording Systems, (29 December 1993); doi: 10.1117/12.165210
Show Author Affiliations
Masaaki Ishida, Ricoh Co., Ltd. (Japan)
Hidetoshi Ema, Ricoh Co., Ltd. (Japan)
Susumu Imagawa, Ricoh Co., Ltd. (Japan)
Yoshinobu Takeyama, Ricoh Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 1987:
Recording Systems: High-Resolution Cameras and Recording Devices and Laser Scanning and Recording Systems
Leo Beiser; Reimar K. Lenz, Editor(s)

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