Image forming method, image forming apparatus and transparent film
US5572291A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1995 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Sep 14, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24802
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A transparent film for forming, e.g., a toner image thereon is provided as an optically transparent sheet member having an opaque part. During the image forming, the position and conveyance state of the transparent film are detected optically by utilizing the opaque part. After the image formation, the opaque part is cleared by (i) detaching the opaque part under heating, or (ii) clarifying the opaque part by heating and/or light illumination. Accordingly, the opaque part required for image forming does not adversely affect the final transparent film product, such as an overhead projection film. The clearing of the opaque part may be performed, e.g., along with the fixation of the toner image onto the transparent film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.