Liquid cartridge including IC board whose center electrode is aligned with light-blocking plate
US11613128B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2021 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | May 22, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/17576
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid cartridge configured to be inserted in a frontward direction to a printer includes: a housing; a liquid supply portion; a circuit board; a plate; and a detection portion. The circuit board includes an electrode group facing upward in an upright posture of the liquid cartridge. The electrode group includes a first electrode, a second electrode, and a third electrode for grounding. The first to third electrodes are arrayed in a lateral direction crossing the frontward direction and a gravitational direction such that the third electrode is positioned between the first and second electrodes. In the upright posture of the liquid cartridge, the plate and the detection portion are respectively positioned upward and rearward relative to the circuit board. Each of the third electrode and an upper portion of the plate is positioned a datum plane extending in the frontward direction and in the gravitational direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.