Patent ID: 11930576
Assignee: BROTHER KOGYO KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 8:
9. The image forming device according to claim 3,
wherein the second voltage conversion circuit comprises a detection signal output terminal configured to output the detection signal,
wherein the detection signal output terminal of the second voltage conversion circuit exhibits high impedance, when the third voltage is equal to or greater than the particular voltage necessary for driving the LED head,
wherein the detection signal output terminal is electrically connected to the control wiring,
wherein the main controller comprises a first switching element and a second switching element, one end of the first switching element being connected to a reference voltage, an other end of the first switching element being electrically connected to one end of the second switching element serially, the other end of the first switching element being electrically connected to the control wiring,
an other end of the second switching element being grounded, the second switching element being in an OFF state when the first switching element is in an ON state, the second switching element being in an ON state when the first switching element is in an OFF state,
wherein, in a case where the first switching element is in an ON state and the second switching element is in an OFF state,
the Low signal is input to the LED controller when the detection signal output terminal outputs the Low signal; and
the High signal is input to the LED controller when the detection signal output terminal exhibits high impedance.