Image forming apparatus with use of a laser beam
US4916480A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1989 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Jun 29, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00254
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image forming apparatus comprising a laser beam radiating unit utilized as a light source, and an optical system that the surface of an original reflects a laser beam radiated from the radiating unit to project an image reflected from the original onto a photosensitive member. In this apparatus, an image is formed selectively in a print mode that an image results from turning on and off the laser beam, in a copy mode that a copy of an original results from exposure of the photosensitive member to the laser beam reflected from the surface of an original or in a composite mode that a composite image is formed of a copy of an original and an image resulting from turning on and off the laser beam. Further, this apparatus comprises a sensor for receiving the laser beam reflected from the surface of an original, and the image of an original and composite image are read by the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.