Refill method for ink-jet print cartridge
US5537134A · kind A · utility
43Cited by
37References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1993 |
| Grant date | Jul 16, 1996 |
| Priority date | — |
| Expiry date | Jun 30, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17553
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The ink-jet print cartridge, which has an internal accumulator for maintaining appropriate back pressure within the pen reservoir, and a bubble generator for providing additional regulation, is refilled by a process that provides for the reestablishment of the necessary back pressure upon refilling and that prevents leakage arising as a result of the refilling operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.