Methods for encoding mechanical keys on printheads
US6547378B2 · kind B2 · utility
3Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2001 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Apr 27, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1752
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A mechanical key scheme is integrated into a composite pattern on both a print cartridge and its corresponding printer carriage chute. In a preferred embodiment the pattern incorporates a plurality of adjacent contiguous columns on both sides of a latch, with each column capable of defining multiple position bits in order to precisely differentiate between different types and/or different families of print cartridges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.