Closed-loop printing control system
US5813337A · kind A · utility
12Cited by
27References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1996 |
| Grant date | Sep 29, 1998 |
| Priority date | — |
| Expiry date | Jun 5, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2553/42
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A system for controlling the lateral position of a web in a web-fed printing press having a printing unit. The web has a series of printed images thereon. The system includes an optical scanner for sensing the lateral position of an image on the web and for generating a first signal. The system also includes an edge sensor which senses the lateral position of a corresponding web edge and which generates a second signal. A controller processes the first and second signals to produce a control signal. The systems also includes a positioning means responsive to the control signal for laterally positioning the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.