Image forming apparatus and belt unit
US8702097B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2010 |
| Grant date | Apr 22, 2014 |
| Priority date | — |
| Expiry date | Jul 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00143
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An image forming apparatus and a belt unit are provided. The image forming apparatus or the belt unit includes: an endless belt; a driving roller; a driven roller; a tension generating member which generates a tension at the belt; a displacement member which is provided to be displaced in a displacement direction parallel to the axial direction of the driven roller together with the belt when the belt is moved in a moving direction along the displacement direction; and an axial force converting unit which converts a force of displacing the displacement member into a force which is directed in a direction intersecting the displacement direction and causes the tension generated at the belt to change such that a ratio of a tension generated on a trailing side in the moving direction of the belt to a tension generated on a leading side in the moving direction is decreased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.