Method of enhancing fine line of printer and related circuit
US4784501A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1987 |
| Grant date | Nov 15, 1988 |
| Priority date | — |
| Expiry date | May 18, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/505
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method and a circuit for enhancing a fine line in the direction perpendicular to the arraying direction of the printing elements (i.e., in the direction of moving the printing paper) of a line printer which prints by applying either thermal elements or wires giving dot impact, and in which, for example, supposing the successive 4 printing elements comprising A, B, C and D, when the printing element C prints black and all others do white, the printing element C prints black and the other print while, the printing element B is made to print black to enhance a fine line by printing with two printing elements, so that the total visibility of the fine line is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.