Image forming device having a control electrode for controlling toner flow
US5625392A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1994 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Mar 4, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/4155
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An edge electrode includes a plurality of control electrodes formed on an insulation sheet. The insulation sheet 2 is a 25 .mu.m thick layer of polymide. A recording surface is provided at a thickness side of the insulation sheet. The edge electrode is disposed so that the recording surface is adjacent to toner borne on a toner-bearing roller. A recording edge is provided as a narrow surface of the insulation sheet bordering the recording surface and confronting a back-electrode roller. The control electrodes are formed on the recording edge confronting a recording medium. Each control electrode is formed to about 1 .mu.m thick on the recording edge. The control electrodes are formed at an interval of about 125 .mu.m. The dimension of the control electrodes in the direction following the recording edge is about 100 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.