| US 7,576,509 B2 | ||
| Drive control method, drive control device, belt apparatus, image forming apparatus, image reading apparatus, computer product | ||
| Makoto Komatsu, Kanagawa (Japan); Toshiyuki Andoh, Kanagawa (Japan); and Yoshihiro Sakai, Tokyo (Japan) | ||
| Assigned to Ricoh Company, Limited, Tokyo (Japan) | ||
| Filed on Sep. 10, 2004, as Appl. No. 10/937,447. | ||
| Claims priority of application No. 2003-319038 (JP), filed on Sep. 10, 2003; application No. 2003-326822 (JP), filed on Sep. 18, 2003; application No. 2003-328598 (JP), filed on Sep. 19, 2003; application No. 2003-376433 (JP), filed on Nov. 06, 2003; and application No. 2004-182596 (JP), filed on Jun. 21, 2004. | ||
| Prior Publication US 2005/0099153 A1, May 12, 2005 | ||
| Int. Cl. G05B 19/10 (2006.01) | ||
| U.S. Cl. 318—567 [318/807] | 94 Claims |
| 1. A position control method for feedback-controlling displacement in a rotating direction of a rotating body, which is driven
to rotate by a drive source, comprising:
reading a signal generated according to rotation of the rotating body; and
when a signal amount read in sampling time is outside a range compared with a defined signal amount, performing correction
processing for a feedback signal using a signal amount other than the signal amount outside the range.
|