Unit using os and image forming apparatus using the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJae-sung Lee, Yoon-tae Lee, Won-il Cho
Life of this patent
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Abstract
A chip mountable on a customer replaceable unit monitoring memory (CRUM) unit used in an image forming job includes a central processing unit (CPU) with its own operating system (OS), which operates separately from an OS of the image forming apparatus, to perform authentication communication with a main body of the image forming apparatus using the OS of the CPU. The security of a unit on which the chip is mounted can thereby be reinforced and random changes of data of the unit can be prevented.
Claims49
A chip which is mountable on a replaceable unit used in an image forming apparatus, the chip comprising:
- a central processing unit (CPU) with an operating system (OS) of the CPU, which operates separately from an OS of the image forming apparatus, to perform authentication communication with the main body of the image forming apparatus using the OS of the CPU.
A customer replaceable unit monitoring memory (CRUM) unit which can be used for an image forming apparatus, the CRUM unit comprising:
- a memory unit to store information regarding a unit on which the CRUM unit is mounted;
- and
- a CPU to manage the memory unit using an operating system (OS) of the CPU, which operates separately from an OS of the image forming apparatus, and to perform authentication communication with the main body of an image forming apparatus.
A replaceable unit which is mounted to be used in an image forming job, the replaceable unit comprising:
- a memory unit to store information on the replaceable unit;
- and
- a CPU to manage the memory unit using an operating system (OS) of the CPU, wherein the CPU operates separately from an OS of the image forming apparatus, and to perform authentication on the main body of an image forming apparatus.
An image forming apparatus, comprising:
- a main controller;
- and
- at least one unit which comprises a memory unit to store information and a CPU to manage the memory unit using an operating system (OS) of the CPU, operating separately from an OS of the main controller, and to perform at least one of authentication and cryptographic data communication with the main controller.
A computer readable medium to contain computer-readable codes as a program to perform a method, the method comprising:
- performing authentication communication with a main body of an image forming apparatus using an operating system (OS) of a central processing unit (CPU), which operates separately from an OS of the image forming apparatus.
A chip which is mountable on a replaceable unit used in an image forming apparatus, the chip comprising:
- a central processing unit (CPU) with an operating system (OS) of the CPU, which operates separately from an OS of the image forming apparatus, to perform authentication communication with a main body of an image forming apparatus, using the OS of the CPU;
- and
- a memory unit to store information regarding at least one of the chip, a customer replaceable unit monitoring (CRUM) unit, a replaceable unit with the CRUM unit, and the OS of the CPU,
- wherein the OS of the CPU is provided in the memory unit within the chip or in memory external to the chip.
Dependencies are inferred from the claim text.