Circuit Board, Image Forming Apparatus, And Method Of Managing Reuse Information Of Circuit Board
AssigneeRicoh Company, Ltd.
InventorsYuichiro Ueda, Noriaki Orikasa, Takashi Nishizawa, Shugo Okamura
Life of this patent
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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.
Claims18
A circuit board, comprising:
- a main part on which a processor is mounted;
- a out part to be cut off from the main part at a out 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,
- wherein, when electric power is supplied, 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 output a detection result.
A method of managing reuse information of a circuit board, the circuit board including 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 method comprising:
- detecting 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 output a detection result.
Dependencies are inferred from the claim text.