Image forming apparatus
US10838323B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2020 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Feb 27, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0856
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a notification portion configured to notify replenishment information for prompting replenishing a developing container with developer in a case where an index is equal to or larger than a preset threshold value. The index is set such that the index increases in accordance with rotation of the developer bearing member and decreases in accordance with replenishment of the developing container with the developer. An amount of increase of the index per predetermined amount of rotation of the developer bearing member is larger in a case where an amount of the developer in the developing container is smaller. An amount of decrease of the index according to the replenishment of the developing container with the developer is larger in a case where an amount of replenished developer is larger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.