Image-forming device
US6715858B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | May 10, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2217/0025
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An image forming device includes a developer carrier (1) for carrying a charged developer (2), and a developer passing controller (3) for applying a voltage corresponding to an image. signal to a plurality of control electrodes (10) to control the passing of said developer (2), the developer passing controller having a plurality of developer passing holes (4) through which the developer (2) passes and said control electrodes being arranged to surround the surroundings of the developer passing holes. The width (W1) of a control electrode row (5) in the longitudinal direction where the control electrodes (10) are arranged is wider than the width (W2) of an image forming area, and both ends (B1, B2) of the control electrode row (5) in the longitudinal direction are arranged outside the width (W2) of an image forming area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.