Recording apparatus for performing uniform density image recording utilizing plural types of recording heads
US5276459A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1991 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Apr 26, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6033
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to image recording apparatus for performing image recording on a recording medium by using plural types of recording heads, each having a plurality of recording elements comprising an array. A test pattern forming unit for forming test patterns on the recording medium by using the plural types of recording heads, a reading unit for reading the test patterns recorded by the test pattern recording unit, and a correction unit for correcting image signals for driving the recording elements in accordance with the recording elements and types of recording heads on the basis of data read by the reading unit are included whereby image density is made uniform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.