Electron-beam generating device having plurality of cold cathode elements, method of driving said device and image forming apparatus applying same
US6580407B1 · kind B1 · utility
17Cited by
34References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1998 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Jun 1, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/3165
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron-beam generating device, in which a number of cold cathode elements are matrix-wired, as well as a method of driving the device, is applied to an image forming apparatus. Statistical calculations are performed in advance with regard to a required electron-beam output, and loss produced in the matrix wiring is analyzed. Drive signals are corrected by deciding optimum correction values based upon the analytical results. As a result, when rows of the matrix are driven successively row by row, the intensity of the outputted electron beams can made accurate for any driving pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.