Print head and ink jet printing apparatus
US9033457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2013 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Apr 19, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/15
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A print head and an ink jet printing apparatus are provided which can have smaller sizes if a print head is used which includes a substrate with a plurality of ejection port arrays and a substrate with ejection port arrays longer than the plurality of ejection port arrays. A drive circuit formed in a substrate is formed outside ejection port arrays in the substrate along the extending direction of the ejection port arrays. The drive circuit formed on an overlapping side of the substrate where the ejection port arrays overlap is formed to be longer, along the extending direction of the ejection port arrays, than a drive circuit formed on a side of the substrate which is opposite to the overlapping side. Furthermore, the ejection port arrays of the substrates overlap in the extending direction of ink supply ports, and the substrates are mounted on a support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.