Copying apparatus
US4952986A · kind A · utility
5Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1989 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Mar 29, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A copying apparatus having a prescanning function for obtaining density data to adjust copy parameters includes a correction function which eliminates the data obtained from a portion of a predetermined color, from the density data detected on a prescanning process. The density data can be restricted within a predetermined range. The predetermined range can be easily set by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.