Image forming device
US6394587B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 26, 2001 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Jun 26, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2217/0025
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An image forming device includes a toner carrier (1) for holding and conveying charged toner (2), and a toner passage controller (3) including a plurality of holes (4) through which toner (2) is passed and control electrodes (10) disposed surrounding the holes. The control of passing of the toner (2) through the holes is effected by applying voltage to the control electrodes in accordance with image signals. The holes (4) have an elongated shape, with the length along a direction in which the toner carrier (1) moves being longer than the width orthogonal to the lengthwise direction, so that the consumption areas of toner (2) on the toner carrier (1) do not interfere with each other while the open area of the holes (4) is sufficiently secured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.