JP4390128B2 - Electronic equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic apparatus apparatus, such as an electronic copying apparatus, a facsimile apparatus, or a printer apparatus, which is equipped with a device that reads and writes a storage device such as an HD (hard disk).
[0002]
[Prior art]
Conventionally, there are various electronic device apparatuses such as an electronic copying apparatus, a facsimile apparatus, and a printer apparatus that use a magnetic head when reading and writing data in a storage device such as an HD (hard disk).
Reading and writing data to and from the storage device by the magnetic head is performed by rotating the disk as the storage device at high speed and controlling the magnetic field on the surface by bringing the magnetic head closer (may be contacted depending on the device).
For this reason, when the magnetic head receives a large impact during access to the disk, the magnetic head comes into contact with the data recording surface on the disk (medium) and may be damaged. In addition, there is a risk that data written on the recording surface may be lost or sectors may be damaged.
[0003]
The following patent document discloses a technique for avoiding such a problem that may occur when a device for reading and writing a storage device receives an impact.
[Patent Document 1]
Japanese Patent Laid-Open No. 11-45499 [Patent Document 2]
Japanese Patent Laid-Open No. 2002-259066
In Patent Document 1, an impact sensor that detects an external impact is provided in the device, and when the impact sensor detects that the device has received an impact, access to a storage device (such as HD) is forcibly stopped to magnetically detect the impact. A technique for preventing head damage is disclosed.
Further, Patent Document 2 includes a contact sensor for detecting a drop impact in a device that frequently receives a drop impact, such as a portable recording / reproducing device, and when the contact sensor detects that the device has received a shock, A technique for preventing damage to the magnetic head by retracting the magnetic head to a predetermined position is disclosed.
[0005]
[Problems to be solved by the invention]
However, the technology for preventing damage to the magnetic head by controlling the operation on the device side that reads / writes the storage device, as disclosed in the above-mentioned patent document, performs each retraction operation after the impact is detected by the sensor. For this reason, there is a possibility that it is not possible to sufficiently cope with an impact received suddenly.
For example, when a paper jam or the like occurs in an image forming apparatus such as an electronic copying apparatus, a user may open and close a cover or the like in order to remove paper jammed in the apparatus. The image forming apparatus receives a sudden impact generated when the cover or the like is opened or closed.
SUMMARY An advantage of some aspects of the invention is that it provides an electronic apparatus that can avoid an impact by recognizing the possibility of an impact.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided a storage device for performing data read or write processing, which includes a magnetic disk and a magnetic head that is disposed at a position different from the magnetic disk according to the direction in which the magnetic disk is provided. A plurality of electronic device devices, wherein the plurality of storage devices are provided in association with each direction in which the magnetic head hits the magnetic disk, and the impact is detected by the electronic device device. An access state in which a prediction unit, an impact prevention unit that is provided in association with each of the impact prediction units and avoids an impact due to the factor , and a process of reading or writing data stored in the storage device And an access detecting means for detecting the access state, and the access detecting means detects the access state. To, when the source is detected by the impact predicting means, to achieve the object by avoiding the impact by the factor by the shock prevention means.
[0007]
In the invention of claim 2, wherein, in the invention according to the first SL placement, the impact predicting means, to achieve the object by being configured by a possible object of detection by the non-contact sensor.
According to a third aspect of the invention, in the first or second aspect of the invention, the impact prevention means is configured by a device capable of visually or audibly recognizing a warning. Achieve the goal.
[0008]
According to a fourth aspect of the present invention, in the first, second, or third aspect of the invention, the impact prevention means can suppress the operation of a movable portion provided in the electronic device. The object is achieved by being constituted by locking means.
According to a fifth aspect of the invention, in the invention according to any one of the first to fourth aspects, the object is achieved by providing an image forming means having a bank part that opens and closes the movable part. To do.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the electronic device of the present invention will be described in detail with reference to FIGS. 1 and 2.
In the present exemplary embodiment, the image forming apparatus 1 will be described as an example of an electronic apparatus that includes a device that reads and writes a storage device such as an HD (hard disk).
FIG. 1 is a diagram showing a schematic configuration of an image forming apparatus 1 according to the present embodiment.
As shown in FIG. 1, the image forming apparatus 1 includes a CPU (Central Processing Unit) 11, a memory 12, an image forming unit 13, a data transmitting / receiving unit 14, an HDD (Hard Disk Drive) device 15, an HDD access detecting unit. 16, an impact prediction means 17 and an impact prevention means 18 are provided.
The image forming apparatus 1 is connected to an external device 2 via a network I / F (interface) 3. This network I / F 3 is configured by a connection cable or the like.
[0010]
The image forming apparatus 1 performs image forming processing based on print data (print command) transmitted from the external apparatus 2 configured by a personal computer or the like via the network I / F 3. A device such as a device.
The CPU 11 is an arithmetic processing device that performs operations (data calculation / processing, data transfer, etc.) in the image forming apparatus 1 such as image forming processing.
The memory 12 is a storage device for data processing, which is composed of a ROM (Read Only Memory), a RAM (Random Access Memory), or the like and is used when the CPU 11 performs arithmetic processing. For example, an impact prevention program, an image formation processing program, and the like are stored.
The image forming unit 13 includes an apparatus that forms an image of print data transmitted from the external apparatus 2, and more specifically, includes an engine unit that performs a printing process on a recording medium such as paper based on the print data. .
[0011]
The data transmission / reception means 14 controls the transmission / reception of data with the external device 2 etc. existing on the network via the network I / F 3.
The HDD device 15 is a device that performs a read process and a write process of HD data as a storage device. The HDD device 15 records data by magnetizing on a disk (magnetic disk) rotating at high speed, that is, on an HD, using a magnetic head. The HD stores data handled by the image forming apparatus 1, for example, image data of an image.
Note that the HDD access state is a state in which the HDD device 15 is reading or writing data stored therein.
In the HDD access state, the magnetic head is close to the magnetic disk (contacted depending on the apparatus).
[0012]
The HDD access detection means 16 is a device that detects an HDD access state, that is, a state in which the HDD device 15 is reading or writing data stored therein. Here, for example, the HDD access status is monitored by monitoring the issuance status of the control signal (disk access command) issued from the CPU 11, the power supply status to the HDD device 15, and the driving status of the HDD device 15 using signal lines. Can be detected.
The impact prediction unit 17 is a device that predicts a factor that the image forming apparatus 1 receives an impact, such as a collision or contact of a human body or an object. Specifically, it is configured by an interpersonal sensor, an obstacle sensor, or the like that senses that a human body or a moving object exists in the vicinity of the image forming apparatus 1 or is in contact therewith.
As these sensors, for example, an optical sensor such as an infrared sensor capable of non-contact detection using a light emitting element and a light receiving element, a temperature sensor, or the like can be used.
[0013]
When the impact predicting means 18 detects factors that may cause the impact of the image forming apparatus 1 by the impact predicting means 17, there is a possibility of collision or contact with the image forming apparatus 1 against these factors. This is a device for visually or audibly recognizing that there is. For example, a sound such as a buzzer or a warning is emitted, or a lamp or the like is turned on (flashing) to encourage avoiding a collision or contact with the image forming apparatus 1.
In addition, when an error such as a paper jam or out of toner occurs, the user can move the bank unit such as a cover provided in the image forming apparatus 1, that is, a movable that may give an impact to the image forming apparatus 1 by an opening / closing operation. When operating the parts, it is also possible to provide a function for preventing the opening and closing operation or the like as the impact prevention means 18 by locking (locking) these movable parts. In addition, the locking method of a movable part should just be what can suppress operation | movement of a movable part, such as a magnet system using an electromagnet.
[0014]
Next, the operation of the image forming apparatus 1 configured as described above will be described.
FIG. 2 is a flowchart showing a processing procedure for preventing an impact received by the image forming apparatus 1 according to the present embodiment.
First, when the power of the image forming apparatus 1 is turned on, the image forming apparatus 1 starts an impact prevention program stored in the memory 12.
The CPU 11 uses the HDD access detection means 16 to determine whether or not the HDD device 15 is executing data read or write processing, that is, whether it is in the HDD access state (step 11).
When the HDD device 15 is not in the HDD access state (step 11; N), the HDD access state is continuously determined.
[0015]
On the other hand, when the HDD device 15 is in the HDD access state (step 11; Y), the CPU 11 uses the impact prediction unit 17 to detect the factor that the image forming device 1 receives an impact, and the image forming device 1 It is determined whether or not there is a possibility of receiving an impact (step 12).
Here, if the impact predicting unit 17 detects a factor that the image forming apparatus 1 receives an impact, for example, a collision or contact of a human body or an object, it is determined that the impact may be received. ing.
[0016]
If it is determined that there is no possibility that the image forming apparatus 1 will receive an impact (step 12; N), that is, if the cause of impact is not detected by the impact prediction means 17, the HDD access state in step 11 continues. Make a decision.
When it is determined that the image forming apparatus 1 is likely to receive an impact (step 12; Y), that is, when the impact predicting unit 17 detects a factor that receives an impact, the CPU 11 causes the impact prevention unit 18 to operate. It is activated to urge the detection target to avoid collision or contact with the image forming apparatus 1 (step 13).
[0017]
Subsequently, the CPU 11 determines whether the HDD device 15 is in the HDD access state using the HDD access detection means 16 (step 14).
If the HDD device 15 is in the HDD access state (step 14; Y), that is, if the HDD access state is continuing, the HDD access state is continuously determined.
On the other hand, if the HDD device 15 is not in the HDD access state (step 14; N), that is, if the HDD access state has ended, the CPU 11 ends the impact prevention means 18 (step 15) and continues to step 11 The HDD access state is determined.
[0018]
The processing for preventing the series of image forming apparatuses 1 from undergoing an impact is executed while the power is on. Alternatively, the start of the impact prevention program may be switched by the operation unit provided in the image processing apparatus 1 and executed only while the impact prevention program is running.
According to the present embodiment, the impact prediction unit 17 detects the factors that the image forming apparatus 1 receives an impact, so that the impact or contact with the image forming device 1 is applied to these factors before the impact is applied. Can be avoided.
In addition, by using a non-contact sensor for the impact prediction means 17, it is possible to appropriately detect even if the cause of the collision is not in contact with the image forming apparatus 1.
[0019]
According to the present embodiment, it is possible to visually or audibly recognize that the HDD device 15 is in the HDD access state by the impact prevention means 18, so that the image forming apparatus 1 collides with the HDD device 15 during the HDD access state. It is possible to prevent the image forming apparatus 1 from being touched and impacting.
Similarly, by locking the movable part of the image forming apparatus 1 when the impact prevention unit 18 is activated, it is possible to make it impossible to open and close the cover and the like during the HDD access state. The occurrence of an impact on the image forming apparatus 1 can be prevented.
[0020]
Also, the direction in which the magnetic head hits the magnetic disk varies depending on the direction in which the HDD device 15 is arranged. Here, the direction in which the magnetic head hits the magnetic disk is defined as the Z direction.
Since the HDD device 15 has a very low impact resistance in the Z direction, it is preferable that the image forming apparatus 1 avoids the impact received in the Z direction as much as possible.
Therefore, the impact prediction unit 17 may be arranged so that the image forming apparatus 1 can appropriately detect the factor that receives the impact in the Z direction.
Further, in the case where a plurality of HDD devices 15 are provided in one device and the Z directions of these HDD devices 15 are different from each other, the factors of receiving an impact in the Z direction of each HDD device 15 You may make it provide the impact prediction means 17 for detecting this.
When a plurality of impact prediction means 17 are provided as described above, an impact prevention means 18 is provided for each impact prediction means 17.
[0021]
Thus, by providing the impact prevention means 18 corresponding to each impact prediction means 17, the activation (locking, voice warning, etc.) of the impact prevention means 18 in an unnecessary direction can be appropriately suppressed.
For example, in an image forming apparatus provided with two HDD devices 15 (A device and B device) arranged so that the Z directions are different, the impact predicting means 17 detects the factor of the A device receiving the impact in the Z direction. In this case, it is possible to prevent activation of the impact prevention means 18 that is activated when the factor of receiving the impact in the Z direction of the B device is detected.
[0022]
【The invention's effect】
According to the first aspect of the present invention, when the access state of the storage device is detected, and further, the factor that receives the impact is detected, by avoiding the impact due to the factor, the recording device can appropriately receive from the outside. Impact can be suppressed. Further, the direction in which the magnetic head of the storage device hits the magnetic disk is different by associating the impact prediction means and the impact prevention means for each storage device, and further providing the impact prediction means for each impact prediction means. In such a case, it is possible to suppress the activation of unnecessary impact prevention means.
According to the invention described in claim 2, by configuring the impact prediction means with a sensor capable of detecting an object in a non-contact manner, it is possible to appropriately detect even a factor that is not in contact with the electronic device. it can.
[0023]
According to the third aspect of the present invention, it is possible to easily recognize the warning for the factor by configuring the shock prevention means by a device capable of visually or audibly recognizing the warning.
According to the fourth aspect of the present invention, the impact prevention means is formed by the locking means capable of suppressing the operation of the movable part provided in the electronic apparatus device, and is generated by the operation of the movable part. Impact can be suppressed.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a schematic configuration of an image forming apparatus according to an exemplary embodiment.
FIG. 2 is a flowchart illustrating a processing procedure for preventing an impact received by the image forming apparatus according to the exemplary embodiment.
[Explanation of symbols]
1 Image forming apparatus 2 External apparatus 3 Network I / F
11 CPU
12 Memory 13 Image Forming Unit 14 Data Transmission / Reception Unit 15 HDD Device 16 HDD Access Detection Unit 17 Impact Prediction Unit 18 Impact Prevention Unit

Claims (5)

An electronic apparatus device comprising a magnetic disk and a plurality of storage devices for performing data read or write processing, the magnetic disk having a magnetic head that is arranged at different positions depending on the orientation of the magnetic disk. And
An impact prediction means for detecting a factor that the electronic device is subject to impact , provided in association with each direction in which the magnetic head hits the magnetic disk of the plurality of storage devices ;
Impact prevention means provided in association with each of the impact prediction means, and avoiding an impact due to the factor,
Access detecting means for detecting an access state in which a process of reading or writing data stored in the storage device is executed;
With
The electronic apparatus apparatus according to claim 1, wherein when the access state is detected by the access detection unit and the factor is detected by the impact prediction unit, the impact prevention unit avoids the impact caused by the factor. The impact predicting means, the object of detection, characterized in that it is constituted by the sensor capable claim 1 Symbol mounting electronic apparatus in a noncontact manner. The shock prevention means, electronic apparatus visually or audibly to cause a warning is recognized, characterized in that it is constituted by a device capable claim 1 or claim 2, wherein. The said impact prevention means is comprised by the locking means which can suppress operation | movement of the movable part provided in the said electronic device apparatus, Claim 2, Claim 2 or Claim 3 characterized by the above-mentioned. Electronic device equipment. An electronic apparatus according to any one of claims 1 to 4, characterized in that it comprises an image forming means having a bank portion for opening and closing a movable part.

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