Thermal platesetter and color proofer
US6204874A · kind A · utility
19Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 7, 1998 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | May 7, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/325
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A device can expose both lithographic printing plates and color proofing materials using the same thermal exposure head. The color proofer mode uses four or more donor sheets and transfers a dye onto a receiver sheet. In order to automate the process, the donor sheets are packaged in a box containing the different donor sheets and receiver sheets in the order they are used by the proofer. The proofer picks up the sheets using a vacuum supply and exposes them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.