Image forming apparatus which reduces noise generated therefrom
US5245385A · kind A · utility
13Cited by
0References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1991 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Dec 19, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/3216
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An image forming apparatus reduces the level of noise escaping therefrom via an opening. The noise is generated from a motor which drives an image forming part in the image forming apparatus, from a radiator fan which radiates heat inside the apparatus to the outside via the opening, and from an exhaust fan which passes harmful air through a filter and then exhausts harmless air to the outside via the opening. The image forming apparatus generates a predetermined sound wave and collides it with the noise so that the predetermined sound wave and noise cancel each other out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.