Image forming apparatus utilizing an AC voltage control circuit
US5229577A · kind A · utility
22Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1990 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Aug 8, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H11/007
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus having a built in AC voltage control circuit which enables the apparatus to be used in regions of the world having commercial power supplies with different supply voltages. The AC voltage control circuit first compares the input voltage to a reference voltage and then performs a switching operation to ensure that the voltage supplied to the AC electric components of the image forming apparatus is the voltage necessary for operation of those components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.