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

Claim 0:
1. An image forming device, comprising:
a photosensitive drum;
an LED head configured to expose a surface of the photosensitive drum;
a main controller board comprising a main controller, a voltage output circuit, a first voltage terminal, a second voltage terminal and a first input/output terminal connected to the main controller, the voltage output circuit being configured to output a first voltage via the first voltage terminal and a second voltage via the second voltage terminal, the first input/output terminal being configured to input and output a control signal; and
an LED controller board comprising a third voltage terminal, a fourth voltage terminal, a second input/output terminal and an LED controller, the third voltage terminal being electrically connected to the first voltage terminal via a first wiring, the fourth voltage terminal being electrically connected to the second voltage terminal via a second wiring, the second input/output terminal being electrically connected to the first input/output terminal via a control wiring, the LED controller being configured to transmit and receive the control signal to and from the main controller via the second input/output terminal to control light emission of the LED head,
wherein the LED controller board is configured to output a voltage according to the first voltage input to the third voltage terminal to the LED head, the LED controller being electrically connected to the fourth voltage terminal, a voltage according to the second voltage input to the fourth voltage terminal being input to the LED controller.