Image forming apparatus
US11184487B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2019 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Feb 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0091
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The image forming apparatus includes the power supply board for generating a +24V power supply voltage and a driver board for driving a load for forming an image, and an engine control board for controlling an operation of a driver board. The driver board includes a fuse which receives the 24V power supply voltage supplied from the power supply board. The driver board drives the load by +24V_FU1 voltage output from the fuse. The engine control board identifies, when an abnormality occurs in an operation of the load, a board that is a cause of the abnormality according to a voltage value of the +24V_FU1 voltage and the voltage value of the power supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.