Circuit board, image forming apparatus, and method of managing reuse information of circuit board
US8957697B2 · kind B2 · utility
1Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2012 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Feb 28, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/175
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A circuit board includes a main part on which a processor is mounted, a cut part to be cut off from the main part at a cut section before the board is reused, and a conductor pattern wired through the cut part via the cut section and to be cut off into a plurality of patterns at the cut section as the cut part is cut off. The processor detects a difference in signal level between a level of a signal output from the conductor pattern before the cut part is cut off, and a level of the signal output from the conductor pattern after the cut part is cut off, to determine a number of times the board is reused.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.