Image forming apparatus including sensor having substrate on which light-emitting element and light-receiving element are provided
US10353332B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2017 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Dec 4, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00616
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image forming apparatus includes an image forming unit configured to form an image, a reference member, a sensor including a substrate, a light-emitting element provided on the substrate, a light-receiving element provided on the substrate, and a blocking member provided between the light-emitting element and the light-receiving element on the substrate, the sensor configured to output an output value based on a light reception result of the light-receiving element, a memory storing data related to a relationship between a measurement condition and an offset value, and a controller configured to control the sensor based on a plurality of measurement conditions to acquire an output value corresponding to a measurement result of reflected light from the reference member, and determine a measurement condition for measuring the image based on the acquired output value and the data stored in the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.