Method and device for preventing unintended use of print cartridges
US5519422A · kind A · utility
71Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1993 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | May 3, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1752
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a printer carriage adapted for holding multiple pen cartridges in separate compartments, each carriage compartment includes one or more key-coded barriers at an entrance to the compartment to provide a first level carriage lockout scheme against non-matching cartridge tabs. A second level carriage lockout is provided to differentiate between different families of print cartridges which successfully pass through the first level lockout, which second level is based on predetermined barrier floor configurations in the bottom of each carriage compartment which block non-matching wings on particular print cartridge families.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.