Motor drive control device and image forming apparatus
US7956567B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 2008 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Feb 13, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/5008
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A motor drive control device for controlling a rotational speed of a motor includes: a motor driver for rotationally driving a motor; a correction amount calculating section for detecting a rotational speed of an output of the motor in accordance with an alternate current signal outputted from an FG sensor and detecting a rotational position of a photoconductive drum, which is rotated by a rotational drive force of the motor, in accordance with a pulse outputted from an encoder; a speed controller for generating a speed control signal corresponding to a total correction amount, which is a sum of a correction amount calculated in the correction amount calculating section based on a rotational speed of the motor and a correction amount calculated based on a rotational position of the photoconductive drum, and outputting the generated speed control signal to the motor driver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.