Electronic apparatus that predicts remaining service life of limited-life component, on basis of frequency analysis of sound data

    公开(公告)号:US11835903B2

    公开(公告)日:2023-12-05

    申请号:US17954714

    申请日:2022-09-28

    CPC classification number: G03G15/55 G03G15/757 G03G2215/00637

    Abstract: An electronic apparatus includes a drive unit having a drive roller, a driving motor, and a limited-life component, a sound collecting device that collects sound from the limited-life component, and outputs sound data, a storage device storing in advance a sound pressure level corresponding to a specific frequency of the limited-life component, with respect to each of different lengths of the remaining service life, and a controller that analyzes frequency of the sound data at predetermined time points; acquires the sound pressure level corresponding to the specific frequency of the limited-life component, on a basis of a result of the frequency analysis; compares the acquired sound pressure level with the sound pressure level of each of the lengths of the remaining service life; predicts the remaining service life of the limited-life component, on a basis of comparison result; and displays the predicted remaining service life on a display device.

    Ink heating device, ink supply device and image forming system

    公开(公告)号:US12194750B2

    公开(公告)日:2025-01-14

    申请号:US18003969

    申请日:2021-07-01

    Abstract: An ink heating device (7) includes a heater circuit (91) including a heater (71) which heats ink and an auto-return type bimetal switch (92) which is provided between the heater (71) and a power source (A); a relay (5) provided between the bimetal switch (92) and the power source (A); and a controller (4) which opens or closes the relay (5) according to a state of the heater circuit (91).

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