Image forming apparatus
US5631691A · kind A · utility
9Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1993 |
| Grant date | May 20, 1997 |
| Priority date | — |
| Expiry date | Jan 19, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04781
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image forming apparatus has an image scanner, a sensor for determining that the image sensor has scanned the front edge of a document, and a controller using main scanning line synchronizing signals and an output signal of the sensor as reference signals. In response to the reference signals, the controller causes at least a writing unit to start writing each image data of particular color and causes a transfer medium driving circuit to start driving a transfer medium. The apparatus allows image components of different colors to be transferred to the transfer medium one above the other in accurate registration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.