Title:
CONTROL ELECTRODE INSTALLED IN IMAGE FORMING DEVICE AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP3411459
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a control electrode whose gate on an image forming device such as a duplicator can be formed with high accuracy and at a low cost.
SOLUTION: A first electrode 27 with a first shaped opening part H is formed on one of the faces of substrate for the control electrode, and a second electrode 39 with a second shaped opening part which is larger than the first shaped opening part H is formed on the other face in such a manner that the second electrode 39 is positioned to match the position of the first shaped opening part H. Further, a laser beam of smaller diameter than the first shaped opening part H is emitted to the substrate from the one or the other face side of the substrate in such a way that the laser beam accurately meets the first shaped opening part H. Thus, it is possible to manufacture the control electrode for the image forming device by opening a through hole of a diameter corresponding to that of the laser beam.
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Inventors:
Shiro Wakahara
Koichi Onose
Kiyotaka Nakanishi
Koichi Onose
Kiyotaka Nakanishi
Application Number:
JP1159497A
Publication Date:
June 03, 2003
Filing Date:
January 24, 1997
Export Citation:
Assignee:
Sharp Corporation
International Classes:
B41J2/385; G03G15/05; (IPC1-7): B41J2/385; G03G15/05
Domestic Patent References:
| JP1052937A |
Attorney, Agent or Firm:
Eisuke Fujimoto
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