Image printing method for edge emission type EL printer
US5241324A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1990 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Apr 17, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/1247
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is an image printing method whereby a line head of a line printer performs line emission a plurality of times to print one primary scanning line. The number of times light is emitted by each edge emission type EL device corresponding to each pixel of one primary scanning line is controlled according to print density information contained in an input print signal. A plurality of flat pixel components are generated lengthwise and crosswise to form an approximately square pixel. This pixel is printed a plurality of times lengthwise and crosswise to form an image. The edges of the image are filled with suitably positioned pixels that have some of their components selectively left blank for visually smoothing effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.