Patent
Optical scanning apparatus including an image reading section and an image printing section that share a common optical system and a method of printing and reading an image using the common optical system
TLDR
In this article, a polygonal mirror is adapted to reflect the light beam so that a light beam reflected by the reflection mirror is used to read a source document placed at a position that is the conjugate of the position of the photosensitive drum surface with respect to the converging device.Abstract:
An optical scanning apparatus includes a semiconductor laser, a polygonal mirror as a deflector for scanning a light beam from the laser, a photosensitive drum for forming an electrostatic latent image, a converging lens for converging the light beam from the laser onto the photosensitive drum, and a reflection mirror located between the deflector and the photosensitive drum. The reflection mirror is adapted to reflect the light beam so that a light beam reflected by the reflection mirror is used to read a source document placed at a position that is the conjugate of the position of the photosensitive drum surface with respect to the converging device. Inside the casing of the semiconductor laser are a beam splitter for light path separation and a photosensor. The apparatus has an image reader section and a laser printer section, which share a common optical system, thus providing a compact design and cost reduction and also equalizes the accuracy of image reading and printing.read more
Citations
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References
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Patent
Scanning optical system
TL;DR: In this paper, the authors proposed a scanning optical system capable of reducing the number of its components and its size with a simple construction, and an image forming apparatus using the scanning optical systems.
Patent
Multi-purpose optical data processor
TL;DR: In this paper, a multi-purpose optical data processor has shared optics for selectively performing light/lens xerographic copying in accordance with a line-by-line scanning pattern and laser reading and writing according with a raster scanning pattern.
Patent
Wavelength converting optical device
TL;DR: In this paper, a wave front converting element is arranged to oppose the reflecting film, which has a diffraction grating for converting the second harmonic wave, emerging from the output end face of the waveguide, into a plane wave.
Patent
Scanning optical system having image forming optical system and reading optical system with at least one common optical component
TL;DR: In this article, a scanning optical system has an image forming optical system for emitting a scanning beam modulated in accordance with image information onto a destination surface, and a reading optical system is used to receive light reflected from an object surface to obtain image information from the object surface.
Patent
Copier/laser-printer conversion
TL;DR: In this paper, a method of converting existing copiers to laser printer engines by externally attaching an apparatus to the copier with no significant alteration of the copiers engine, and attachable in an easily removable manner is described.