JPH0550861U - Image forming device - Google Patents

Abstract

(57) [Summary] An object of the present invention is to provide an image forming apparatus capable of easily cleaning dust accumulated in the main body of the image forming apparatus without using a cleaner or the like. It is characterized in that dust existing in the main body of the image forming apparatus is cleaned by using an exhaust fan already installed in the image forming apparatus.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus, and more particularly, to an image forming apparatus having a main body having an image forming function provided with an exhaust fan.

[0002]

[Prior Art]

 Generally, in an image forming apparatus, dust that has infiltrated during use, toner and paper dust that has spilled into the apparatus, accumulates as dust and accumulates inside the apparatus, causing functional problems and contaminating images. Inconvenience often occurred. Therefore, in order to eliminate the above-mentioned inconvenience, conventionally, a vacuum cleaner is separately prepared, and the inside of the apparatus is cleaned using this vacuum cleaner.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional method, a cleaning device which is completely separate from the image forming device is required, so that not only cleaning work inside the device becomes large-scale, but also a bulky cleaning device such as carrying and storing the image forming device. The maintenance of the house was a complicated and labor-intensive problem.

The present invention is proposed in view of the above problems, and an object thereof is to use an exhaust fan already installed in an image forming apparatus so that the image forming apparatus stays in the apparatus without preparing a cleaner or the like. An object of the present invention is to provide an image forming apparatus capable of easily cleaning dust.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides an image forming apparatus in which an image forming function is internally provided with an exhaust fan, and the exhaust fan is used for cleaning dust accumulated in the apparatus main body. It is characterized by this.

[0006]

[Action]

 With the above-described configuration, it is possible to easily clean the dust accumulated in the apparatus with a simple structure using an exhaust fan already installed in the image forming apparatus.

[0007]

【Example】

 An image forming apparatus of the present invention will be described based on an embodiment of the drawings. FIG. 1 is an external front view of a facsimile apparatus F shown as an example of the present invention, FIG. 2 is its plan view, and FIG. 3 is a side view. The facsimile apparatus F has an operation unit 2 on the upper front side of a main body 1 which can be opened and closed vertically, a handset 3 mounted on a support base on the left side surface, and a transmission document mounting base on the upper plane surface. 4 and a recording paper placing table 5 for placing the recording paper for reception cut into a standard size on the back side, and the transmission document and the reception recording with the main body 1 opened on the lower front side. A paper outlet 6 is provided.

On the other hand, inside the main body 1, a printer P constituting an image forming function is provided. The printer P includes a charger P2 that charges a voltage applied to the photosensitive drum P1 in the peripheral area of the photosensitive drum P1 that rotates as shown in FIG. 3, an exposure device P3 that forms an electrostatic latent image, and A developing device P4 that supplies a toner to the electrostatic latent image, a transfer device P5 that transfers the toner image formed by the developing device P4 to recording paper by corona discharge, and a registration roller that conveys the recording paper to the transfer position. P6 and a fixing device (not shown).

Further, the printer P is provided with an exhaust fan 7 shown in FIG. 4 in order to discharge the ozone generated by the corona discharge of the charger P2, the transfer device P5 and the like to the outside of the main body. The exhaust fan 7 is composed of a cylindrical fan guide 7a, a fan motor 7b supported by the fan guide 7a, and a fan 7c attached to the motor shaft. It is provided to face.

A cleaning hose 8 communicating with the exhaust fan 7 is detachably provided outside the main body 1 of the facsimile apparatus F configured as described above. The cleaning hose 8 includes a joint portion 8a, a hose 8b, and a tip nozzle 8c. As shown in detail in FIG. 4, the joint portion 8a has a substantially conical cylinder including a large diameter portion 8d and a small diameter portion 8e, and the large diameter portion 8d is formed on the outer peripheral surface of the fan guide 7a. A screw hole 8f that can be screwed into the screw 7d is formed, and an extended inner peripheral surface 8g continuous with the screw hole 8f is formed with an annular projection 8h having a smaller diameter than the inner peripheral surface 8g.

A disk-shaped filter 9 made of filter paper or the like is interposed between the outer end face of the fan guide 7a and the end face of the annular projection 8h facing the end face, and the screw 7d and the screw hole are formed. The filter 9 is stably fixed by fastening with 8f. Further, a hose 8b made of a flexible tube which can be bent is fitted in the small diameter portion 8d of the joint portion 8a, and the tip end area is reduced at the free end of the hose 8b in order to change the air flow velocity. A nozzle 8c is attached.

By the way, as shown in FIG. 5, the fan motor 7b is driven by a forward / reverse switching circuit K connected between the fan motor 7b and the control section S via a limit switch L and a power source E. When the main body 1 is opened and the limit switch L is turned on, the switching circuit K is switched so that the fan motor 7b is rotated normally or reversely and the fan 7c is blown out or sucked. Is made.

Next, the operation of the embodiment configured as described above will be described. In the facsimile apparatus of the embodiment, the transmission original is placed on the transmission original placing table 4, and the operation unit 2 is operated to transmit. Then, the transmitted original document is discharged from the discharge port 6. On the other hand, at the time of reception, the printer P operates based on the received signal, and the recording paper placed on the recording paper placing table 5 is conveyed to the position of the transfer device P5 by the registration roller P6.

The recording paper on which the image has been transferred by the transfer device P5 is discharged from the discharge port 6 through a fixing unit (not shown).

In this case, the exhaust fan 7 is driven to discharge ozone generated by the corona discharge of the charger P2 of the printer P and the transfer device P5 to the outside of the main body 1. By the way, the toner spilling from the developing device P4 and the paper dust of the recording paper conveyed by the registration rollers P6 become dust as the toner is accumulated inside the main body 1 while repeating such operations, and an image is formed. It adheres to the components of the device and causes functional failures and image contamination.

In such a case, the dust accumulated in the main body 1 is cleaned using the cleaning hose 8 in the following procedure. By first opening the main body 1, the drive of the exhaust fan 7 that has been discharging ozone through a limit switch (not shown) is automatically stopped. Next, the filter 9 is inserted into the joint portion 8a of the cleaning hose 8, the screw hole 8f of the joint portion 8a is screwed into the screw 7d of the fan guide 7a, and the cleaning hose 8 is fastened to the blower fan 7. To do.

Then, the forward rotation / reverse rotation switching circuit K shown in FIG. 5 is switched by a selector switch (not shown) to rotate the fan motor 7b in the reverse direction so that the fan 7c acts in the suction direction. After that, the nozzle 8c is made to face the portion where the dust is accumulated, and the dust is removed by suction to clean the inside of the main body 1. When dust accumulates on the joint portion 8a, the filter 9 is removed to discard the dust.

Further, dust accumulated in the main body 1 can be cleaned by blowing air. In this case, the filter 9 is removed from the joint portion 8a of the cleaning hose 8 and fastened, and the fan motor 7b is normally rotated through the switching circuit K by the operation of the changeover switch, and the fan 7c is blown to cause the nozzles to blow. The air blown out from 8c is blown to the portion where dust is staying to scatter the dust for cleaning.

The cleaning hose 8 can be easily attached to and detached from the main body 1 side by using either the suction method or the air blowing method, and the dust accumulated in the main body 1 can be reliably cleaned by a simple operation. Further, since the cleaning hose 8 is not bulky as compared with the conventional one using a vacuum cleaner, the cleaning hose 8 can be easily carried and stored.

[0020]

[Effect of the device]

 As explained above, the present study uses an exhaust fan already installed in the image forming apparatus to easily and reliably clean the dust accumulated in the main body of the image forming apparatus, and to prevent functional failures due to the attachment of dust. In addition, the image contamination can be eliminated, and the maintenance related to the cleaning can be performed very easily.

[Brief description of drawings]

FIG. 1 is an external front view of a facsimile apparatus equipped with the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is an enlarged sectional view of an essential part.

FIG. 5 is an electric circuit diagram of a fan motor.

[Simple explanation of symbols]

 (1) ... Main body (7) ... Exhaust fan

Claims (1)

[Scope of utility model registration request] 1. An image forming apparatus having an exhaust fan in a main body of an apparatus having an image forming function, wherein the exhaust fan is used for cleaning dust accumulated in the main body of the apparatus. Image forming apparatus.