Image forming apparatus and position detection method
US10241434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2017 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Oct 10, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0161
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a photo sensor, which is configured to detect a measurement image formed on an intermediate transfer belt, and a controller. The controller includes a first comparator, a second comparator, an XOR unit, and a CPU. The first comparator is configured to binarize an analog detection waveform, which represents a detection result of a measurement image by the photo sensor, in accordance with a first threshold value to generate a first binary signal. The second comparator is configured to binarize the detection waveform in accordance with a second threshold value to generate a second binary signal. The XOR unit is configured to perform an XOR operation in accordance with the first binary signal and the second binary signal to generate an XOR signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.