Printheads having improved heater chip construction
US7097280B2 · kind B2 · utility
1Cited by
23References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2004 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Jan 5, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/14129
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved heater chip for an ink jet print head, the chip including an active heater array and an inactive heater array located adjacent to and extending away from the end of the active heater array. The inactive heater array provides a region adjacent the end of the active heater array that is substantially planar, and also provides a plurality of current paths which reduces energy differences between heater resistors adjacent the end of the active heater array and other heater resistors in the heater array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.