Apparatus of generating control signals for controlling an operation of an electrophotographic copying machine
US4072415A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1976 |
| Grant date | Feb 7, 1978 |
| Priority date | — |
| Expiry date | Aug 26, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus of generating control signals for an electrophotographic copying machine which is provided with a disk fixed to a rotary shaft of a photosensitive drum and having through-holes formed therein, a light emitting device arranged to be opposed to a photosensitive device through the disk to form binary coded light signals and a decoder connected to the photosensitive device to decode the light signals therefrom. As the disk rotates together with the photosensitive drum, the photosensitive device sequentially senses a plurality of binary coded light signals to operate desired devices of the electrophotographic copying machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.