Recording apparatus, detection method, and storage medium
US8801141B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2013 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Apr 25, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2029/3935
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording apparatus includes a sensor including a light emitting element for emitting light to a recording medium, and a light receiving element for receiving the emitted light and reflected by the recording medium, configured to, via the light emitting and light receiving elements, measure a patch recorded on the recording medium by a recording head; a calibration member configured to reflect the emitted light and to be used to calibrate the sensor based on a result of optical measurement of the calibration member performed by receiving, via the light receiving element, reflected light reflected by the calibration member; and a detection unit configured to detect dirtiness of the calibration member based on the result of the optical measurement of the calibration member by the sensor and a result of optical measurement of the calibration member performed before the measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.