Image forming apparatus and storage medium
US10509353B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 17, 2019 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Feb 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00042
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image former; a detector; and a hardware processor that: calculates a minimum area for each of the plurality of tones based on image data of the image, calculates a density ratio between the densities before and after the transferring is made for each of the plurality of tones from the densities detected by the detector, extracts as a first area a minimum area of a tone corresponding to a density ratio which switches from less than a predetermined threshold to equal to or more than the threshold, and extracts as a second area a minimum area of a tone the density ratio of which is a maximum, and changes a setting of a dot size of the image so that a size of the second area becomes the same as a size of the first area until the next setting change is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.