Ink jet printing apparatus and ink tank
US8840220B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2011 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Mar 26, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17546
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Provided is an ink jet printing apparatus that receives light from the light emitting part of the ink tank in the light receiving part; on the basis of a result of the light reception, determines an attachment position of the ink tank; and controls the light from the light emitting part to inform the ink tank state, wherein the light emitting part has a plurality of light emitting elements that can respectively emit lights having different peak emission wavelengths. A peak sensitivity wavelength of the light receiving part is in the range not less than 760 nm and not more than 1100 nm; at least one of the plurality of light emitting elements has a peak emission wavelength in the range not less than 760 nm, and at least one has a peak emission wavelength in the range of 400 to 760 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.