Method of preventing ink clogging in ink droplet projecting device, an ink droplet projecting device, and an ink jet printer
US4417259A · kind A · utility
76Cited by
6References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1982 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Jan 25, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An on-demand type ink jet printer and an ink droplet projecting device to be used for said printer, which prevents clogging in the orifice resulting from drying and solidification of ink and is constructed in such manner that an air cell filled with air at the time of ink droplet projection and with a liquid at the time of non-ink-droplet-projection is provided in front of an orifice through which ink droplets are projected, and that, in said air cell another orifice facing the aforesaid orifice is coaxially provided in a position opposite to that of the aforesaid orifice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.