Scanner, image forming apparatus, and motor control method of scanner and image forming apparatus
US8414096B2 · kind B2 · utility
0Cited by
0References
25Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 27, 2009 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Oct 6, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J19/202
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A scanner, an image forming apparatus and a motor control method of the scanner and the image forming apparatus. The motor control method includes scanning a test image formed on a document, calculating an actual speed of a scan head moved by the motor using the scanned test image, calculating a matrix representing a relation between a driving signal to drive the motor and the calculated actual speed of the scan head, and renewing the driving signal using an inverse matrix to the calculated matrix to correct the actual speed of the scan head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.