Samsung Electronics Co., Ltd.

Other

S-printing Solution Co., Ltd.

Hp Printing Korea Co., Ltd.

Man-suk Park

Kyu-Sung Kim

Kyu-sung Kim

Jong-seung Lee

Seung-mo Moon

Hyo-su Jeong

Seung-Mo Moon

An image forming apparatus includes a volatile memory and System-on-Chip (SoC) part. The SoC part includes an internal memory, a CPU for accessing the volatile memory in the normal mode; an interface part for receiving a external signal, and a control part for, when the interface part has no input during a first preset time, copying information stored to the volatile memory to the internal memory and converting to a first power saving mode to lower an operating frequency of the volatile memory and an operating frequency of the CPU, and when a normal mode switch signal is not input during a second preset time in the first power saving mode, controlling the CPU to access the information copied to the internal memory and converting to a second power saving mode to change the volatile memory to a self-refresh mode.

Image forming apparatus and power control method thereof

An image forming apparatus includes a memory, an interface to receive image data to perform an image forming job, and a controller to, when the image data is input in a power save mode of the image forming apparatus, send the image data to an external image forming apparatus, and when the image forming apparatus switches to a normal mode, control the image forming apparatus to perform an image forming job using the image data sent to the external image forming apparatus.

Image forming apparatus to reduce power consumption, host apparatus, and method of performing image forming job thereof

An image forming apparatus includes an engine unit to execute an image forming job, a determination unit to repeatedly determine whether the image forming apparatus is in a standby state or not, based on whether the standby state to wait for execution of the image forming job is maintained for a predetermined time or not, and a controller to control the image forming apparatus to operate in a first power saving mode if it is determined that the image forming apparatus is in the standby state, wherein, in the first power saving mode, information stored in a volatile memory is copied to an internal memory and operation frequencies of a CPU, the volatile memory, and an intellectual property are lowered. Accordingly, power consumption in the standby state is reduced in a stepwise manner.

Image forming apparatus having power saving mode and controlling method thereof

An image forming apparatus includes a volatile memory and an SoC part. The SoC part includes an internal memory, a CPU for accessing the volatile memory in the normal mode; an interface part for receiving a external signal, and a control part for, when the interface part has no input during a first preset time, copying information stored to the volatile memory to the internal memory and converting to a first power saving mode to lower an operating frequency of the volatile memory and an operating frequency of the CPU, and when a normal mode switch signal is not input during a second preset time in the first power saving mode, controlling the CPU to access the information copied to the internal memory and converting to a second power saving mode to change the volatile memory to a self-refresh mode.

Image forming apparatus and controlling method thereof

A rotating apparatus includes a separating member, at least one movable magnet, and at least one passive magnet. The separating member is made of a nonmagnetic material, and interposed between the movable magnet and the passive magnet. The movable magnet is relatively shifted from the separating member along one surface of the separating member, and N-pole and S-pole of the movable magnet are arranged along the one surface of the separating member. The passive magnet is placed on the other surface of the separating member, and coupled with the movable magnet by magnetic force. When the movable magnet and the separating member are shifted relatively to each other, the passive magnet is shifted along the movable magnet and rotated on the other surface of the separating member.

Growing community of inventors

Seoul, South Korea

Man-suk Park