Method for controlling printer paper feed
US6650077B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Jul 19, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B11/40
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for rotating a printer paper-feed roller toward a desired rotational position wherein the printer paper-feed roller is driven by a motor. One step includes controlling the motor with a signal which at least includes the product of a scale factor and a function of an error signal, wherein the error signal represents the difference between the actual rotational position and the desired rotational position of the printer paper-feed roller. Another step includes varying the scale factor in a predetermined manner over time when a predetermined condition has been met. In one example, the scale factor is decreased in a linear manner over time when the predetermined condition has been met. In one implementation, the predetermined condition is a predetermined rotational distance of the printer paper-feed roller from the desired rotational position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.