Semi-automatic image registration control for a digital copier
US7106477B2 · kind B2 · utility
16Cited by
10References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 28, 2001 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Aug 2, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0098
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a digital copier having an input scanner and a printer, image placement or magnification errors which relate to the input scanner can be corrected in copies made at the printer. A person feeds into the input scanner a special test pattern sheet. The copy of the test pattern may exhibit readily-detectable image defects, manifest as “readings” which the user can communicate to the computer, such as through a user interface. A control system in the computer can take the readings and use them to correct attributes of prints made in subsequent copying operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.