JP4126208B2 - Image processing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an image processing apparatus such as a digital copying machine including a scanner device and a printer device, and is preferably connected to a communication path such as a network and functions as image communication and a printer in addition to the function as the digital copying machine. In detail, in order to process the image data input to the digital multifunction peripheral, the image data is temporarily stored in a storage device mounted on the apparatus, and the stored The present invention relates to an image processing apparatus that invalidates image data from a storage device for those for which image data processing has been completed.
[0002]
[Prior art]
2. Description of the Related Art In recent years, digital copying machines have been commercialized in which an image of a document is electronically scanned and read by a scanner device, and image data output from the scanner device is recorded and output from a printer device.
[0003]
Recently, it has evolved into a digital multi-function peripheral equipped with communication functions (fax function, printer function, etc.) for communicating with external devices and transmitting and receiving image data.
[0004]
In addition, a storage device that temporarily stores image data to be processed as a digital multi-function peripheral is also installed, and has been improved so that a large amount of image data and a plurality of jobs can be processed efficiently.
[0005]
On the other hand, there are various types of storage devices for storing image data, such as a storage device comprising a semiconductor memory and a storage device comprising a magnetic storage medium such as a hard disk device.
In these storage devices, the environment for storing image data is different in terms of storage capacity, cost, writing speed, reading speed, volatility, and non-volatility.
[0006]
In particular, in a storage device including a magnetic storage medium such as a hard disk device, each area is managed by dividing a disk (storage medium) into small units by management data called FAT.
[0007]
When data is stored in each area of the disk (storage medium), the FAT data is updated, and when the data stored in each area is read out as necessary, the FAT data is used as a basis. Reading out.
[0008]
Currently, this hard disk device is installed in a digital multi-function peripheral as an auxiliary storage device for semiconductor memory in terms of storage capacity, price (part cost), data transfer speed, etc., and a certain amount of job data is stored on the semiconductor memory. While processing, the newly input job data is temporarily stored, and read and processed on the semiconductor memory when the processing order comes.
This configuration is provided on the market as a processing system that can efficiently process a large amount of job data without stagnation as a system (digital multi-function peripheral) that processes image data.
[0009]
[Problems to be solved by the invention]
However, when highly confidential document data is processed by such a digital multi-function peripheral, there is a problem in terms of security.
For example, job data (image data) temporarily stored in each area of the hard disk device is updated when the FAT data is no longer needed, and new image data is stored based on the FAT data. Unless new image data is overwritten in the area where unnecessary image data is stored or image data is forcibly deleted as an unnecessary data area, the job data itself remains as data. Because.
[0010]
Therefore, as disclosed in Japanese Patent Laid-Open No. 9-284572, etc., the image data area stored in the hard disk device is forcibly erased or generated by random numbers when the processing is completed in the digital multifunction peripheral. It is considered that the irregular pattern image is overwritten so that it cannot be reproduced as image data.
[0011]
However, strictly speaking, because the storage device is based on a magnetic storage medium, new image data or image data that has been stored previously can be obtained only by overwriting or erasing a specific pattern. Is not completely unreadable.
[0012]
In addition, in order to invalidate the image data stored in the hard disk device, a pattern image generated with a random number is overwritten on the area where the image data is stored, or the storage area of the image data is formatted (cleared, (Such as data replacement) takes a long time, and even if new image data is input during that time, it will not be accepted immediately and will cause a problem of delaying the image data input operation. To do.
[0013]
In particular, in order to improve the security level, for example, when the invalidation process is repeated a predetermined number of times for the image data storage area of the hard disk device, the process for the new image data is stagnated during that time. .
[0014]
Therefore, the present invention has been made to solve the above problems, and when invalidating the image data stored in the image data storage means (memory), the image data is stored according to the security level. It is possible to perform invalidation work repeatedly on the specified area to achieve sufficient security of image data, while at the same time receiving new image data by invalidating image data that is no longer necessary as an image processing device. It is an object of the present invention to provide an image processing apparatus that takes into consideration that there is no drop.
[0015]
[Means for Solving the Problems]
The present invention Is , It is job data Image data input means for inputting image data and image data input from the image data input means are stored Having a magnetic storage medium Image data storage means and image data stored in the image data storage means Jobs Image data processing means for processing the image data in the image data storage means By erasing work that repeats the set number of times In the image processing apparatus including the image data invalidating means for invalidating, the image data invalidating means invalidates the previous image data stored in the image data storage means, and When input of new image data is confirmed from the input means, In a state where at least one of the preset number of deletions has been deleted, Of the previous image data stored in the image data storage means Remaining A function of interrupting invalidation and storing new input image data in an area different from the area where the previous image data is stored in the image data storage means is provided. Image processing device It is.
[0016]
According to the present invention, when the previous image data stored in the image data storage means is invalidated by the image data invalidation means, if the input of new image data is confirmed from the image data input means, the image data The invalidation processing by the image data invalidation unit of the previous image data stored in the storage unit is interrupted, and the input new image data is stored in the area where the previous image data is stored in the image data storage unit. Is stored in a separate area.
[0017]
According to the present invention, it is possible to receive input of new image data to be processed as a device, efficiently process the image data without stagnation, and improve the security level as a device for the received image data. Become.
[0018]
When the image data invalidation unit invalidates the image data newly input from the image data input unit by the image data invalidation unit, the image processing apparatus according to the present invention provides new image data. Invalidation processing for the set number of times Previous image data of Invalidation Do the rest of the process It has a function.
[0019]
The present invention invalidates the new image data together with the previous image data by the image data invalidation means when the invalidation processing by the image data invalidation means for the new image data input from the image data input means is completed. To do.
[0020]
According to the present invention, it is possible to minimize the reduction in the processing capacity of image data as a device by efficiently processing the operation of invalidating image data.
In addition, the security level of the image data at the installation destination can be ensured.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an image processing apparatus according to the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory diagram showing a schematic configuration of a digital multi-function peripheral which is an embodiment of an image processing apparatus according to the present invention.
The digital multi-function peripheral 1 serving as the image processing apparatus of the present invention includes an image reading unit 2 that is an image data input unit for inputting image data, and an image data storage unit that stores image data input from the image reading unit 2. A hard disk 12, an image forming unit 6 that is an image data processing unit that processes image data stored in the hard disk 12, and a device control unit 8 that is an image data invalidating unit that invalidates the image data in the hard disk 12. When the device control unit 8 invalidates the previous image data stored in the hard disk 12 by the device control unit 8, the input of new image data is confirmed from the image reading unit 2. Then, the invalidation of the previous image data stored in the hard disk 12 by the device control unit 8 is interrupted and input. That has a function to be stored in an area different from the new image data and region stored in the image data of the previous hard disk 12.
[0022]
A digital multi-function peripheral 1 according to an embodiment of the present invention includes an image reading unit 2, an operation unit 4, an image forming unit 6, a device control unit 8, a communication unit 10, a hard disk (HD) 12, and a management unit 14. Yes.
[0023]
The image reading unit 2 includes, for example, a CCD (Charge Coupled Device) 2a as an image reading device, and functions as image data input means for inputting image data.
[0024]
The operation unit 4 includes an input unit 4a having various input keys and a display unit 4b having display means such as an LCD (Liquid Crystal Display; liquid crystal display), and inputs operation and conditions of the apparatus. Display conditions.
[0025]
The image forming unit 6 includes a volatile memory 6a and a printing unit 6b such as an LSU (Laser Scanning Unit), and outputs image data stored in the image data storage unit. Work as.
[0026]
The device control unit 8 and the management unit 14 function as an image data invalidation unit that invalidates (erases) image data stored in the image data storage unit by an optional program.
[0027]
Further, the device control unit 8 and the management unit 14 serve as invalidity (erasure) frequency control means for performing invalidation (erasure) work by the image data invalidation means a plurality of times on the image data to be erased by an optional program. Has a function.
[0028]
The communication unit 10 controls communication with an external network.
[0029]
The hard disk 12 serves as image data storage means for storing image data input from each input means (input path: each mode mounted as the digital multi-function peripheral 1, for example, scanner, fax, network, etc.).
The image data storage means can be configured as a storage device including a magnetic storage medium.
[0030]
The management unit 14 performs management such as erasing processing of unnecessary data as well as management of the entire apparatus.
[0031]
When the digital multifunction peripheral 1 according to the present embodiment is used as a copying machine, the image data of the document read by the image reading unit 2 is output from the image forming unit 6 as a copy.
[0032]
The image reading unit 2 is provided with a CCD 2a and can electronically read an image of a document set at a reading position.
Then, the read image data of the document is completed as an output image on the volatile memory 6 a and temporarily stored in the hard disk 12.
When there are a plurality of documents, the reading and storing operations are repeated.
[0033]
Thereafter, based on the processing mode instructed from the operation unit 4, the image data stored in the hard disk 12 is sequentially read out at an appropriate timing and sent to the volatile memory 6a.
Then, the image data is transferred from the volatile memory 6a to the printing unit 6b in accordance with the writing timing to the printing unit 6b.
[0034]
Similarly, when printing a plurality of read image data, the output image is similarly stored as an output image in the hard disk 12 and sent from the hard disk 12 to the volatile memory 6a in accordance with the output mode. The data is repeatedly transferred to the printing unit 6b in accordance with the writing timing to the printing unit 6b.
[0035]
Next, when the digital multifunction peripheral 1 according to the present embodiment is used as a printer, the image data received by the communication unit 10 is output from the image forming unit 6 via the volatile memory 6a or the like.
[0036]
As shown in FIG. 1, the communication unit 10 is connected to a network 15 by a communication cable or the like, and image data from external devices PC1, PC2,... Such as a personal computer (PC) connected on the network 15. Is supposed to receive.
[0037]
The image data received by the communication unit 10 is sent to the volatile memory 6a in units of pages as output image data, and is temporarily stored in the hard disk 12.
Then, it is sent again from the hard disk 12 to the volatile memory 6a and transferred to the printing unit 6b in the same manner as when used as a copying machine.
[0038]
When the digital multifunction peripheral 1 according to the present embodiment is used as a network scanner, image data of a document read by the image reading unit 2 is transferred from the communication unit 10 via the network 15 to an arbitrary personal computer or the like. It can be transmitted to the external devices PC1, PC2,.
Also here, the image of the original is electronically read by the CCD 2 a provided in the image reading unit 2.
[0039]
Then, the read image data of the document is completed as an output image on the volatile memory 6 a and temporarily stored in the hard disk 12.
Then, the data is sent again from the hard disk 12 to the volatile memory 6a, and is transmitted from the communication unit 10 to the target transmission destination after establishing communication with the transmission destination instructed via the operation unit 4.
[0040]
Further, the communication unit 10 is connected to a telephone line (not shown) in addition to the network 15, and the same operation is performed when the digital multifunction peripheral 1 according to the present embodiment is used as a facsimile apparatus.
[0041]
Here, the digital multifunction peripheral 1 including the hard disk 12 is described as a storage device for temporarily storing image data. However, the present invention is not limited to this, and the stored image data can be stored even if it is removed from the apparatus main body. The present invention can be similarly applied to a case where a non-volatile memory that can be held, a memory having a backup function, and other storage devices (mediums) using a magnetic storage medium are provided.
[0042]
In addition, each component of the digital multifunction peripheral 1 according to the present embodiment is controlled by the device control unit 8 and monitors operation instructions from the input unit 4a such as a tablet and a key group provided in the operation unit 4. Information to be notified to the user, such as information relating to the state of the digital multi-function peripheral 1, is accurately guided and displayed via the display unit 4 b.
[0043]
The management unit 14 manages information about each component managed by the device control unit 8, and the device control unit 8 controls the operation of the entire digital multi-function peripheral 1 based on the information. .
[0044]
In the digital multi-functional peripheral 1 of the present invention, when the device control unit 8 invalidates the image data newly input from the image reading unit 2 by the device control unit 8, the new image data is invalidated together with the previous image data. It has a function to convert.
[0045]
Next, based on FIG. 2, the operation part 4 comprised from the input part 4a and the display part 4b is demonstrated in detail.
FIG. 2 is an explanatory diagram showing the operation unit 4 in detail.
As described with reference to FIG. 1, the operation unit 4 includes the input unit 4a and the display unit 4b. The operation unit 4 includes an operation panel 40 as shown in FIG.
[0046]
The operation panel 40 includes a liquid crystal panel 41, a “start” key 16, an “all clear” key 17, a “clear” key 18, a “ten” key 22, a “printer” key 23a, a “fax / image transmission” key 23b, A “copy” key 23c, a “job status” key 25, a “user setting” key 24, and the like are arranged.
[0047]
The display unit 4b is configured by a dot matrix type liquid crystal panel 41, and can display in detail information to be notified to the user as the digital multi-function peripheral 1 according to the present embodiment.
Further, a transparent touch panel (transparent tablet) is provided on the screen of the liquid crystal panel 41. When the touch panel is operated according to information displayed on the liquid crystal panel 41, the information is input to the system as instruction information. It also functions as a part of the input unit 4a.
[0048]
In addition, the input unit 4a has a key group arranged adjacent to the liquid crystal panel 41, a “start” key 16 for instructing a copy start, and “all clear” for interrupting a process being executed. Key 17, “Clear” key 18 for clearing the contents of the designated mode, “Ten” key 22 for designating the number of copies, “Printer” key 23a serving as a switching key for each mode, “Fax / Image” A “send” key 23b, a “copy” key 23c, a “job status” key 25 for checking the status of a job (reserved job), a “user setting” key 24, and the like are included.
[0049]
As described above, various modes are set by the key operation of the operation panel 40 serving as the operation unit 4 described above, and the process on the image data of the document captured from the image reading unit 2 is performed.
[0050]
In the printer mode, job data is basically sent via the network 15, so that the key operation on the operation panel 40 can be used to check the digital multifunction peripheral 1 such as job confirmation (calling) and job cancellation. This is limited to a specific operation such as confirmation work on the transferred job data.
[0051]
Next, a security system installed in the digital multifunction peripheral 1 according to the present embodiment will be described.
As a simple processing flow, image data to be processed as a device is temporarily stored in the hard disk 12.
Thereafter, the stored image data is erased (invalidated) from the hard disk 12 when it becomes unnecessary due to completion of processing, a clear instruction, or the like.
At this time, the stored image data is erased (invalidated) according to the security level.
[0052]
In the following description, the image data of the original is read and described as a copy operation for outputting as a recorded matter from the printer. However, when the digital multi-function peripheral 1 according to the present embodiment is used as a printer or read as a scanner. The same processing is performed when used as a transmission device such as a facsimile or network scanner for transmitting image data.
[0053]
FIGS. 3 to 11 are cut out screens displayed on the liquid crystal panel 41 of FIG. 2, and the “image data erasing process” for erasing the image data temporarily stored in the hard disk 12 is made effective. FIG. 10 is an explanatory diagram showing display transition status of the display unit 4b in each processing step of erasing (invalidating) image data that is no longer necessary on the hard disk 12 according to the security level.
FIG. 12 is a flowchart showing a series of processing procedures for performing a copying operation in the digital copying machine according to the present embodiment and then erasing the image data on the hard disk 12.
[0054]
FIG. 3 is a display screen (basic screen) 41a of the liquid crystal panel 41 in a situation where the “image data erasing process” is not yet effective. As the digital multifunction peripheral 1 according to the present embodiment, the “image data erasing process” is shown. Is functionally pre-installed in the apparatus, but this function is set not to operate initially.
[0055]
Then, the operation of the “image data erasure processing” function can be performed by performing the input setting of the product key because of the necessity of security for the document data or the like at the installation destination.
[0056]
As described in the proposal of the present applicant (Japanese Patent Laid-Open No. 2001-309099), the pre-installed function is selectively enabled with a product key and can be used thereafter. It is.
[0057]
FIG. 4 shows that “image data erasure processing” can be operated at the lower left of the display screen 41a of the liquid crystal panel 41 so that the user can understand that “image data erasure processing” is enabled by inputting the product key. It is a figure of the state which displayed the icon 42 showing that it is a difficult situation.
[0058]
When the “image data erasing process” is not in operation (when the apparatus is on standby), the lower left icon 42 portion of the display screen 41a of the liquid crystal panel 41 is pressed (touched) with a finger. The display screen 41a of the panel 41 transitions as shown in FIG.
In this case, as shown in FIG. 5, the version information of this function related to the security kit is displayed in a window at the approximate center of the display screen 41 a of the liquid crystal panel 41.
[0059]
The “image data erasing function” is treated as an option on the digital multi-function peripheral 1 as a “data security kit”, and is displayed as a “data security kit” during window display.
As a result, the contents and version of the “data security kit” and “image data erasing function” can be confirmed.
[0060]
Further, when the “image data erasing process” is operating due to job end, job clear, etc. (when data on the hard disk 12 is being erased), as shown in FIG. A window is displayed in the approximate center of the screen 41a indicating that data is currently being deleted.
[0061]
At this time, when the lower left icon 42 portion of the display screen 41a of the liquid crystal panel 41 is pressed (touched) with a finger, the display screen 41a of the liquid crystal panel 41 transitions to FIG.
Here, at the approximate center of the display screen 41a of the liquid crystal panel 41, the image data erasing process on the hard disk 12 by the "image data erasing process" is being performed and its progress is displayed in a level.
Thereby, the operation status of the image data erasing process by the “image data erasing process” can be confirmed.
[0062]
Further, when the image data on the hard disk 12 is being erased by the “image data erasing process”, it is operating at a glance by displaying it in a form different from a normal display such as blinking an icon. It is effective to understand that.
[0063]
Next, FIG. 8 shows that “image data erasure processing” acts on the hard disk 12 due to a difference in security level with respect to document data or the like at the installation destination, and erases (invalidates) the image data stored on the hard disk 12. When the number of times is arbitrarily set, an operation instruction for starting the “image data erasing process” is performed so as to forcibly erase (invalidate) the image data stored on the hard disk 12. This is a detailed setting display screen (security setting screen) 43 of the liquid crystal panel 41.
[0064]
By setting the number of deletions suitable for the security level using this detailed setting display screen (security setting screen) 43, the image data is repeatedly deleted when the image data becomes unnecessary. A security level can be maintained, and a reduction in the processing level for image data as a device due to an improvement in the security level can be minimized.
[0065]
Further, the image data stored on the hard disk 12 can be erased (invalidated) at an arbitrary timing, which is effective when important document data is processed.
[0066]
Hereinafter, the operation will be briefly described for each mode.
(All data area erase mode)
When the “delete all data area” key 43a portion displayed on the upper left of the detailed setting display screen 43 of the liquid crystal panel 41 shown in FIG. 8 is pressed, the data on the hard disk 12 is erased at that point.
At this time, for confirmation, a confirmation window is displayed at the approximate center of the detailed setting display screen 43 of the liquid crystal panel 41 (FIG. 9). If there is an operation instruction of “erase”, erasure of data on the hard disk 12 is started. The
[0067]
FIG. 10 shows the progress of the data erasing operation on the hard disk 12 as a level display at the approximate center of the detailed setting display screen 43 of the liquid crystal panel 41.
[0068]
Further, on the right side of the “Erase All Data Area” key 43a on the detailed setting display screen 43 of the liquid crystal panel 41, as shown in FIG. An “all data area erasure count” key 43b is displayed so that the number can be set between seven.
[0069]
On the detailed setting display screen 43 of the liquid crystal panel 41, the set number of times is displayed next to the “all data area erasure count” key 43b. (The default setting value is “1”.)
[0070]
When the “all data area erasure count” key 43b portion of the detailed setting display screen 43 of the liquid crystal panel 41 is pressed, an “all data area erasure count” setting screen 44 is displayed on the liquid crystal panel 41 as shown in FIG. Then, the number of times is arbitrarily set by operating the “up” key 44 a part or the “down” key 44 b part of the “all data area erasure count” setting screen 44 of the liquid crystal panel 41.
[0071]
(Automatic data erasing mode at power-on)
When the “automatic erasing at power-on” key 43c portion displayed in the middle section of the detailed setting display screen 43 of the liquid crystal panel 41 shown in FIG. 8 is pressed, a check “L” is entered in the key portion, and the digital multi-function peripheral 1 It is possible to set so that data on the hard disk 12 is erased each time the power is turned on.
[0072]
Further, on the right side of the “automatic erasing when power is turned on” key 43c on the detailed setting display screen 43 of the liquid crystal panel 41, as shown in FIG. For example, a “number of automatic erasures at power-on” key 43 d is displayed so that a setting between 1 and 7 can be made.
[0073]
On the detailed setting display screen 43 of the liquid crystal panel 41, the set number of times is displayed next to the “number of times of automatic erasing upon power-on” key 43d. (In the default setting state, the automatic erasing mode at power-on is not set, and the number of times is “0”.)
[0074]
When the “automatic erasing count at power-on” key 43d portion of the detailed setting display screen 43 of the liquid crystal panel 41 is pressed, the “all data area erasing count” setting screen is displayed on the liquid crystal panel 41 as shown in FIG. 44 is displayed, and the number of times is arbitrarily set by operating the “up” key 44a portion or the “down” key 44b portion of the “all data area erasure count” setting screen 44 of the liquid crystal panel 41.
[0075]
(Automatic data deletion mode at the end of each job)
When the “automatic erasing count at the end of job” key 43e displayed in the lower part of the detailed setting display screen 43 of the liquid crystal panel 41 shown in FIG. 8 is pressed, a job to be processed in the digital multi-function peripheral 1 is completed. In addition, it is possible to set the number of operations for erasing data relating to the completed job from the hard disk 12.
[0076]
When the “automatic erasing count at the end of job” key 43e portion of the detailed setting display screen 43 of the liquid crystal panel 41 is pressed, the “all data area erasing frequency” setting screen is displayed on the liquid crystal panel 41 as shown in FIG. 44 is displayed. For example, the number of times can be arbitrarily set by operating the “up” key portion 44a or the “down” key portion 44b of the “all data area erasure count” setting screen 44 of the liquid crystal panel 41 between 1 and 7. Is set.
Further, on the detailed setting display screen 43 of the liquid crystal panel 41, the number of times the automatic data erasing mode at the end of each job is repeatedly executed is displayed next to the “number of automatic erasing at the end of job” key 43e. . (The default setting value is “1”.)
[0077]
Note that only the automatic data deletion mode at the end of each job is automatically set when the operation of the security kit (“image data deletion processing”) is permitted by the product key input setting described above. It is assumed.
[0078]
As described above, the purchase of the “Data Security Kit” due to the need for security has created an environment in which the “image data erasing function” can be operated, and the “image” corresponding to the security level at the installation site. The number of operations of the “data erasing function” is set.
Further, it is possible to instruct start of erasure of data on the hard disk 12 as necessary.
[0079]
The processing flow in the copy mode will be described as an example with reference to the flowcharts shown in FIGS.
When the power of the digital multifunction device 1 is turned on (ON), first, the device control unit 8 checks each device constituting the apparatus (step S101).
[0080]
If there is no problem as a result of the check (step S102 “Y”), warm-up is started so that a predetermined operation is possible (step S103).
[0081]
On the other hand, if an abnormality (deficiency) is confirmed (step S102 “N”), error processing such as displaying a window for confirming the abnormality (deficiency) on the display screen and asking for confirmation is performed ( Step S104).
[0082]
Next, while warming up without any problem, it is confirmed whether or not the “automatic erasing mode at power-on” that initializes the hard disk 12 when the power is turned on is set (step S105). If so, initialization of the hard disk 12 is started (step S106), and the progress of the initialization work is displayed on the display screen in a window (step S107).
[0083]
At this time, initialization by data erasure of the hard disk 12 is repeated by the number of times of erasure set in advance on the setting screen of the liquid crystal panel 41 shown in FIGS. 8 and 11 (step S108).
[0084]
When the above processing is completed, the display screen 41a of the liquid crystal panel 41 of the operation panel 40 becomes the display state of the basic screen shown in FIG. 8, and upon completion of warm-up (step S109), the job instruction standby state is entered (step S109). S110).
[0085]
In this state (standby), the document is placed at the set position of the image reading unit 2 of the digital multifunction peripheral 1, and after setting the copy mode for the document, the operation panel 40 is instructed to start copying. When the “start” key 16 is turned on (S111), it is electronically scanned by the CCD 2a of the image reading unit 2 and is generated as page data on the volatile memory 6a as page data (step S112).
[0086]
Then, the image data is temporarily accumulated on the hard disk 12 from the volatile memory 6a, and management information (FAT data and the like) related to the image data stored in the hard disk 12 is managed by the management unit 14 (step S113).
[0087]
Next, the image data stored in the hard disk 12 is read again as print data on the volatile memory 6a in accordance with the recording timing (step S114), and at the timing with the printer, the LSU (LSU ( Data is transferred to the laser scanning unit and printed out (step S115).
[0088]
Then, when it is confirmed that the image data has been printed out by the printer, the management data such as FAT data is updated as the processing is completed (step S116), and when the series of printing processes is completed, the series of printing is completed. The image data erasing process on the hard disk 12 is executed on the image data storage area used for the process (step S117).
[0089]
Also at this time, initialization by data erasure of the hard disk 12 is repeated by the number of times of erasure set in advance on the setting screen of the liquid crystal panel 41 shown in FIGS. 8 and 11 (step S118).
[0090]
The above is the basic description of the operation of invalidating the image data on the hard disk 12 according to the security level.
[0091]
Next, when the image data on the hard disk 12 is being erased, the input of new image data is accepted and the image data is processed efficiently, while the security of the stored image data is compensated. explain.
[0092]
Note that the image processing apparatus (digital multi-function peripheral 1) according to the present invention, as described in the security setting screen (detailed setting display screen) 43 of the liquid crystal panel 41 shown in FIG. There are three hard disk erasure modes, "Automatic erasure at the time" and "Automatic erasure at the end of job". This time, the improvement of job efficiency in the "Automatic erasure at the end of job" mode will be mainly described.
[0093]
This is a mode used when it is necessary to forcibly erase the data on the hard disk 12, such as when processing highly confidential data, and a new job is accepted and processed. The priority is to erase the data currently on the hard disk 12 rather than the “automatic erasure when power is turned on”. This is because even if image data is being received, it cannot be processed as a device, and therefore, it is because priority is given to erasing data on the hard disk 12.
[0094]
A case will be described as an example where “automatic erasure count at the end of job” is set to 2 times or more (N times) on the security setting screen 43 of the liquid crystal panel 41 shown in FIG.
[0095]
FIG. 14 is a time chart so that the movement when processing a job received by the digital multi-function peripheral 1 which is an image processing apparatus can be understood.
The first time chart (conventional 1) shown in FIG. 14 is invalidated (erased) from the image data stored on the hard disk 12 when the processing is completed after receiving the preceding job 1 (Job 1). ) Is repeated for the set number of times (N times).
[0096]
Also, when the job for invalidation (deletion) is repeated N times and the digital multi-function peripheral 1 is waiting, when a new job 2 (Job 2) is received, the same as the preceding job 1 (Job 1) It turns out that it is processing.
[0097]
In this way, if a new job is input when processing of the preceding job has been completed and invalidation processing has been completed, the processing of the new job will not stagnate. As shown in the second time chart (conventional 2), the processing of the preceding job 1 (Job 1) is completed, and the invalidation processing for the data of the preceding job 1 (Job 1) is performed for the set number of times (N times). ) If a new job 2 (Job 2) is input at a repeated timing (before that, including after the job 1 is received), the job stagnate (waits) during that time.
[0098]
Therefore, according to the present invention, as shown in the third time chart (a), the processing of the preceding job 1 (Job 1) is completed, and the invalidation processing for the data of the preceding job 1 (Job 1) is performed a set number of times. If a new job 2 (Job 2) is input at the timing of repeating the minute (N times) (previous: including after receiving Job 1), a series of erasing operations (one repeated erasing operation) At the timing when the erasing operation is completed, a new job 2 (Job 2) is received and processed.
Then, when the processing of the new job 2 (Job 2) is completed, the data of the preceding job 1 (Job 1) and the new job 2 (Job 2) is invalidated.
[0099]
At this time, on the hard disk 12, as shown in FIG. 15, the invalidation processing of the remaining data is performed with the invalidation processing performed at least once on the image data area of the preceding job 1 (Job1). Is temporarily interrupted, a new job 2 (Job 2) is received, and image data input as data of the new job 2 (Job 2) is stored in another area on the hard disk 12.
[0100]
When the data of the new job 2 (Job 2) is also completed (unnecessary), the data for the area in which the data of the preceding job 1 (Job 1) and the new job 2 (Job 2) are stored is stored. Is repeatedly performed a set number of times (N times).
[0101]
Note that the order of deleting a plurality of invalid job data is as shown in the third time chart (a) of FIG. 14 at the stage where the processing for the data of the new job 2 (Job 2) is completed. Data invalidation processing is repeated for the set number of times (N times) for the data area of the new job 2 (Job 2), and then data invalidation is performed for the area of the preceding job 1 (Job 1). As shown in the fourth time chart (b) of FIG. 14 at the stage where the remaining processing (from 2 to N) and the processing for the data of the new job 2 (Job 2) are completed. The remaining data invalidation processing (from 2 times to N times) is performed on the preceding job 1 (Job 1) area, and then the data of the new job 2 (Job 2) is transferred to the data area. Nothing And a method for processing of repetitions set number of times (N times).
[0102]
Here, regarding the interruption method during erasure of data on the hard disk 12, in the above description, “new job 2 (Job 2) is completed at the timing when a series of erasure operations (erasure operations for one repeated erasure operation) is completed”. If the job data is divided and stored in multiple areas (in units of sectors), each area where the data to be erased (in units of sectors) is stored. It is also possible to manage the number of times of erasure in detail and control it in units of sectors so as not to stagnate newly input jobs as much as possible. (Minimize user waiting time.)
[0103]
Further, according to the present invention, as shown in the fourth time chart (b), the processing of the preceding job 1 (Job 1) is completed, and the invalidation processing for the data of the preceding job 1 (Job 1) is performed a set number of times. Input a new job 2 (Job 2) at the timing of repeating the minute (N times) (before: including after the job 1 is received) (reservation of a new job such as device operation and data input) If there is, a new job 2 (Job 2) is received and processed at the timing when a series of erasing operations (one erasing operation of repeated erasing operations) is completed.
Then, when the processing of the new job 2 (Job 2) is completed, the data of the preceding job 1 (Job 1) and the new job 2 (Job 2) are invalidated.
[0104]
At this time, on the hard disk 12, as shown in FIG. 15, the invalidation processing of the remaining data is performed with the invalidation processing performed at least once on the image data area of the preceding job 1 (Job1). Is temporarily interrupted, a new job 2 (Job 2) is received, and image data input as data of the new job 2 (Job 2) is stored in another area on the hard disk 12.
[0105]
When the data of the new job 2 (Job 2) is also completed (unnecessary), the data for the area in which the data of the preceding job 1 (Job 1) and the new job 2 (Job 2) are stored is stored. Is repeatedly performed a set number of times (N times).
[0106]
【The invention's effect】
As described above, according to the image processing apparatus of the present invention, when the previous image data stored in the image data storage means is invalidated by the image data invalidating means, a new image data input means is used. When the input of correct image data is confirmed, the invalidation processing by the image data invalidation means of the previous image data stored in the image data storage means is interrupted, and new input image data is stored in the image data storage The image data stored in the image data storage means can be invalidated in accordance with the security level. A new image to be processed as a device that can repeatedly perform invalidation work on the area where the image data is stored, and can achieve sufficient security of the stored image data. Accepting an input of over data, together with the processed efficiently without causing stagnation of the image data, it is possible to improve the security level of the device with respect to the received image data.
[0107]
According to the image processing apparatus of the present invention, when the invalidation process by the image data invalidation unit for the new image data input from the image data input unit is completed, the new image data and the previous image data are combined with the image data. It can be invalidated by the invalidating means, and the processing for invalidating the image data can be efficiently processed, so that a reduction in the processing capacity of the image data as the apparatus can be minimized.
In addition, the security level of the image data at the installation destination can be ensured.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a schematic configuration of a digital multi-function peripheral that is an embodiment of an image processing apparatus according to the present invention.
FIG. 2 is an explanatory diagram showing in detail a configuration of an operation unit of the image processing apparatus according to the present invention.
3 is an explanatory diagram of a screen displayed on the liquid crystal panel of FIG. 2 (normal state).
4 is an explanatory diagram of a screen displayed on the liquid crystal panel of FIG. 2 (a state in which an icon indicating that “image data erasing processing” is operable is displayed). FIG.
FIG. 5 is an explanatory diagram of a screen (version information display screen) displayed on the liquid crystal panel of FIG. 2;
6 is an explanatory diagram of a screen displayed on the liquid crystal panel of FIG. 2 (“image data erasure processing” operation screen).
7 is an explanatory diagram of a screen displayed on the liquid crystal panel of FIG. 2 (“image data erasing process” operation status confirmation screen).
8 is an explanatory diagram of a screen displayed on the liquid crystal panel of FIG. 2 (detailed setting display screen).
FIG. 9 is an explanatory diagram of a screen displayed on the liquid crystal panel of FIG. 2 (erase confirmation screen).
FIG. 10 is an explanatory diagram of a screen displayed on the liquid crystal panel of FIG. 2 (data erasing work progress display screen).
11 is an explanatory diagram of a screen displayed on the liquid crystal panel of FIG. 2 (“all data area erasure count” setting screen).
FIG. 12 is a flowchart (part 1) for explaining the flow of processing in a copy mode.
FIG. 13 is a flowchart (part 2) for explaining the flow of processing in a copy mode.
FIG. 14 is a time chart showing the movement when processing a job received by a digital multi-function peripheral which is an image processing apparatus according to the related art and the present invention.
FIG. 15 is an explanatory diagram showing timing for performing data invalidation processing on an area in which data of a preceding job and a new job are stored in the time charts (a) and (b) of FIG. 14;
[Explanation of symbols]
1 Digital MFP (image processing device)
2 Image reading unit (image data input means)
2a CCD
4 Operation part
4a Input section
4b Display section
6 Image forming unit (image data processing means)
6a Volatile memory
6b Printing section
8. Device control unit (image data invalidation means)
10 Communication Department
12 Hard disk (image data storage means)
14 Management Department
15 network
16 “Start” key
17 “All Clear” Key
18 “Clear” key
22 “Ten” key
23a "Printer" key
23b "Fax / image transmission" key
23c "Copy" key
24 “User Setting” key
25 “Job Status” key
40 Operation panel
41 LCD panel
41a Display screen (basic screen)
42 icons
43 Detailed setting display screen (Security setting screen)
43a “Erase all data area” key
43b “All data area erase count” key
43c “Auto delete at power-on” key
43d “Number of automatic erasing at power-on” key
43e “Number of automatic erasures at job end” key
44 “Erase count of all data area” setting screen
44a "Up" key
44b "Down" key
PC1, PC2 External device

Claims (2)

Image data input means for inputting image data as job data, image data storage means having a magnetic storage medium for storing image data input from the image data input means, and stored in the image data storage means An image processing apparatus comprising: an image data processing unit that processes a job of the image data; and an image data invalidating unit that invalidates the image data in the image data storage unit by an erasing operation that repeats a set number of times .
Said image data invalidating means, when performing the invalidation of the image data of the stored preceding in the image data storage means, the input of the new image data from the image data input means is confirmed, preset In a state where at least one of the number of erases that has been performed is performed, the remaining invalidation of the previous image data stored in the image data storage means is interrupted, and the new image data that is input is An image processing apparatus comprising a function for storing an image data storage unit in an area different from an area in which image data is stored in advance. When the image data invalidation means invalidates the image data newly input from the image data input means by the image data invalidation means, the invalidation processing for the set number of times of new image data the image processing apparatus according to claim 1 which has a function to perform the remaining processing of disabling image data.

Images