Ink jet printing apparatus
US4394663A · kind A · utility
7Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1981 |
| Grant date | Jul 19, 1983 |
| Priority date | — |
| Expiry date | Sep 25, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A charge deflection type ink jet printing apparatus adjusts, in detecting and controlling a deflection of charged ink droplets, the size (height or width) of characters with utmost accuracy by varying the number of guard droplets. In combination with the adjustment by the variation in the number of guard drops, the direction of ejection of an ink jet head and/or the position of a deflection detecting electrode may be adjusted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.