Image forming apparatus to control a power supply, and method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsJai-yeol Lee, In-gu Kwak
Life of this patent
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Abstract
An image forming apparatus for controlling power supply is provided. An image forming apparatus includes at least one cover unit to be mounted in the image forming apparatus, at least one replaceable unit to participate in an image forming operation of the image forming apparatus, a sensing unit to sense whether the at least one cover unit is opened or closed, and a main board unit to cut off the power supply to the at least one replaceable unit for a predetermined period of time when the at least one cover unit is opened or closed. Accordingly, stable operation is enabled.
Claims20
An image forming apparatus, comprising:
- at least one cover unit mounted in the image forming apparatus;
- at least one replaceable unit, comprising a customer replaceable unit monitoring unit (CRUM) to manage a state of the replaceable unit, to participate in an image forming operation of the image forming apparatus;
- a sensing unit to sense whether the at least one cover unit is opened or closed;
- and
- a main board unit to cut off a power supply when the at least one cover unit is opened, and maintaining cut off to the at least one replaceable unit for a predetermined period of time that begins after closing the cover,
- wherein the CRUM comprises:
- a memory unit to store an initialization program different from an operating system (OS) operated by the image forming apparatus unique information associated with the replaceable unit and status information on use of consumables used in the image forming apparatus;
- and
- a central processing unit (CPU) which communicates with the memory unit, wherein the CPU is operable to perform initialization of the replaceable unit using the initialization program which operates separately from the OS operated by the image forming apparatus when the replaceable unit is detached from and attached to the image forming apparatus, to perform authentication and cryptographic data communication with the main board unit.
A method of controlling the power supply of an image forming apparatus which comprises at least one cover unit capable of being opened or closed and at least one replaceable unit, including a customer replaceable unit monitoring unit (CRUM) to manage a state of the replaceable unit, to be replaceable, wherein the image forming apparatus performs an image forming operation using the at least one replaceable unit, the method comprising:
- sensing whether the at least one cover unit is opened or closed;
- and
- cutting off a power supply to the at least one replaceable unit when the at least one cover unit is opened, and maintaining cut off for a predetermined period of time that begins after closing the cover,
- wherein the CRUM comprises:
- a memory unit to store an initialization program different from an operating system (OS) operated by the image forming apparatus unique information associated with the replaceable unit and status information on use of consumables used in the image forming apparatus;
- and
- a central processing unit (CPU) which communicates with the memory unit, wherein the CPU is operable to perform initialization of the replaceable unit using the initialization program which operates separately from the OS operated by the image forming apparatus when the replaceable unit is detached from and attached to the image forming apparatus, to perform authentication and cryptographic data communication with a main body of the image forming apparatus.
A method of controlling the power supply of an image forming apparatus comprising:
- sensing an at least one cover unit as being opened;
- cutting off a power supply to an at least one replaceable unit, comprising a customer replaceable unit monitoring unit (CRUM) to manage a state of the replaceable unit when the at least one cover unit is opened, and maintaining cut off to the at least one replaceable unit for a predetermined period of time that begins after closing the cover;
- sensing the at least one cover unit as being closed;
- and
- waiting for a predetermined period of time to elapse, and returning the power supply to the at least one replaceable unit,
- wherein the CRUM comprises:
- a memory unit to store an initialization program different from an operating system (OS) operated by the image forming apparatus unique information associated with the replaceable unit and status information on use of consumables used in the image forming apparatus;
- and
- a central processing unit (CPU) which communicates with the memory unit, wherein the CPU is operable to perform initialization of the replaceable unit using the initialization program which operates separately from the OS operated by the image forming apparatus when the replaceable unit is detached from and attached to the image forming apparatus, to perform authentication and cryptographic data communication with a main body of the image forming apparatus.
Dependencies are inferred from the claim text.