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Image forming apparatus

An image and generation technology, applied in image communication, computer security devices, instruments, etc., can solve the problem of data being easily read out

Inactive Publication Date: 2008-10-22
OKI DATA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But, there is such a problem that must be solved, that is: in the prior art, when a large-capacity nonvolatile memory such as: HDD (hard disk) is stolen, the data preserved by this HDD is easily read out

Method used

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Experimental program
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Effect test

Embodiment approach 1

[0018] FIG. 1 is a block diagram of an image forming apparatus according to the first embodiment.

[0019] As shown in the figure, the image forming apparatus 101 of Embodiment 1 is roughly classified into a main processing module (block) 102, an encrypted HDD 113, a nonvolatile memory 116, a panel (panel) 117, and an engine device. (engine unit) 118 constitutes. Here, as shown in the figure, a printer is taken as an example of the image forming apparatus 101 . In addition, the image forming apparatus 101 is communicatively connected to the information processing apparatus 1000 through the communication line 1001 in the state of use. Hereinafter, the configuration of the image forming apparatus 101 will be described in detail.

[0020] The main processing module 102 is a communication line 1001 composed of a network, a USB interface, and an IEEE1284 interface. Modules of the engine unit 118 . Here, the information processing device 1000 is a high-level device that generate...

Embodiment approach 2

[0073] 4 is a block diagram of an image forming apparatus according to a second embodiment.

[0074] As shown in the figure, the image forming apparatus 201 of Embodiment 2 is roughly composed of a main processing module 202 , an encrypted HDD 113 , a nonvolatile memory 116 , a panel 117 , and an engine unit 118 . Here, the figure shows a printer as an example of the image forming apparatus 101 . In addition, the image forming apparatus 201 is communicatively connected to the information processing apparatus 1000 through the communication line 1001 in the state of use. Parts that are different from image forming apparatus 101 of Embodiment 1 will be described in detail below. The same parts as those in the image forming apparatus 101 are denoted by the same symbols as those in Embodiment 1, and description thereof will be omitted.

[0075] As shown in the figure, the difference from Embodiment 1 is that an encrypted HDD identification unit 204 is added to the main processing...

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PUM

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Abstract

The invention provides an image forming device. When a high-capacity HDD (hard disk) is stolen, the image forming device can prevent data which is stored in the HDD 115 from being read out. In the image forming device of the invention, an encryption function part of an encryption / decryption function part 114 processes encryption for print jobs received from an information processing device or print data manufactured by an image forming part 106 and stores the print jobs or the print data in the HDD 115; a decryption function part of the encryption / decryption function part 114 processes decryption and output for the print jobs or the print data which is encrypted and stored in the HDD 115 by the encryption function part.

Description

technical field [0001] The present invention relates to an image forming apparatus having a large-capacity nonvolatile memory (memory). Background technique [0002] In recent years, image forming apparatuses having large-capacity nonvolatile memories such as hard disks have become popular. In such an image forming apparatus, when print data obtained from the outside is temporarily stored in a large-capacity nonvolatile memory, it is required to maintain the confidentiality of the print data. In the prior art (see Patent Document 1), the storage area from which the print data temporarily stored in a large-capacity nonvolatile memory is read is overwritten with fixed data together with the image conversion process (that is, Overwrite, overwrite), and further, also overwrite random numbers. [0003] Patent Document 1 (Japanese Patent Office: JP-A-2006-347100). [0004] However, there is a problem that must be solved, that is, in the prior art, when a large-capacity nonvolat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/44G06F21/00G06F21/60G06F21/62
CPCG06F21/80H04N2201/3288H04N1/4433H04N1/32358H04N1/00912H04N1/00928H04N1/4486
Inventor 小泽长
Owner OKI DATA CORP