Image-forming apparatus
US7258414B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2005 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | Oct 11, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/393
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An image-forming apparatus is disclosed. The apparatus includes a paper-carrying belt for carrying paper, drive unit for driving the paper-carrying belt, a scale provided on the paper-carrying belt that indicates position information and that partially has a scale seam portion, position-detection unit for reading the position information from the scale, and control unit for generating position information from an output of the position-detection means and controlling the drive means based on the position information in order to drive and control the paper-carrying belt.A first sensor and a second sensor for reading the position information from the scale are provided as the position-detection means, and the first sensor and the second sensor are provided in order to be separated by a distance which is more than or equal to a gap width of the scale seam.The control is configured to use as position information what is combined after putting weightings on a first sensor output which is output from the first sensor and a second sensor output which is output from the second sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.