JP6390300B2 - Image forming apparatus - Google Patents

Description

  The present invention relates to an image forming apparatus.

  A filter provided inside the device that adsorbs volatile substances generated inside the device at a temperature lower than a predetermined temperature and releases the adsorbed volatile materials at a temperature higher than a predetermined temperature, and raises the temperature of the filter to a predetermined temperature or higher. There is known an image forming apparatus that has a mode for performing a refresh operation for releasing adsorbed volatile substances and raises the temperature of a filter to a predetermined temperature or higher using heat generated inside the apparatus (Patent Document 1).

JP 2010-237647 A

In the conventional technique, the scent is released regardless of the operation time of the image forming apparatus.
An object of the present invention is to provide an appropriate scent to the surrounding environment of an image forming apparatus as compared with a case where a configuration for adjusting the amount of scent discharged according to the operation time of the image forming apparatus is not provided.

In order to solve the above problem, an image forming apparatus according to claim 1,
A ventilation path formed with a first exhaust port for discharging the air inside the apparatus main body to the outside of the apparatus main body, and a second exhaust port for discharging the air to the outside from a direction intersecting the first exhaust port. When,
A fan that generates an air flow such that air flows toward the first exhaust port and the second exhaust port;
Adjusting means for adjusting the passage amount of the air, which is disposed downstream of the fan and upstream of the first exhaust port and discharged from the first exhaust port , according to the operation of the apparatus main body;
And an adding means provided between the first exhaust port and the adjusting means so as to face the first exhaust port and for adding a scent to the air discharged from the first exhaust port. ,
It is characterized by that.

According to a second aspect of the present invention, in the image forming apparatus according to the first aspect,
Control means for controlling the operation of the fan according to the operation of the apparatus body,
It said adjusting means closes the first exhaust port when the cumulative value of the operating the operating time of the apparatus main body has exceeded a predetermined threshold,
It is characterized by that.

According to a third aspect of the present invention, in the image forming apparatus according to the first aspect,
Control means for controlling the operation of the fan according to the operation of the apparatus body,
The adjusting means holds the first exhaust port in an open state until a cumulative number of printed sheets of the apparatus main body reaches a predetermined threshold;
It is characterized by that.

According to a fourth aspect of the present invention , in the image forming apparatus according to the first aspect,
Control means for controlling the operation of the fan according to the operation of the apparatus body,
It said adjusting means, when the cumulative value of the operating the operating time of the apparatus main body has exceeded a predetermined threshold, adjusting the fragrance release of the fragrance addition unit by increasing or decreasing the air volume of the fan,
It is characterized by that.

In order to solve the above problem, an image forming apparatus according to claim 5,
A ventilation path formed with a first exhaust port for discharging the air inside the apparatus main body to the outside of the apparatus main body, and a second exhaust port for discharging the air to the outside from a direction intersecting the first exhaust port. When,
A first fan that generates an air flow such that air flows toward the first exhaust port;
A second air flow is arranged between the first exhaust port and the second exhaust port on the downstream side of the first fan and generates an air flow so that air flows toward the second exhaust port. With fans,
Control means for controlling the operation of the first fan and the second fan according to the operation of the apparatus main body;
It provided facing said first outlet, and a adding means for adding fragrance to the air discharged from the first outlet,
Stopping the first fan when a cumulative value of operating time of operation of the apparatus main body exceeds a predetermined threshold;
It is characterized by that.

According to a sixth aspect of the present invention, in the image forming apparatus according to any one of the first to fifth aspects,
The scent adding means is a filter that holds a scent source having a scent component inside and releases the scent according to temperature,
It is characterized by that.

  According to the first to sixth aspects of the present invention, as compared with the case where the configuration for adjusting the amount of scent discharged according to the operation time of the image forming apparatus is not provided, a moderate scent to the surrounding environment of the image forming apparatus is provided. Can be provided.

FIG. 2A is a front schematic configuration diagram showing the overall appearance of the image forming apparatus 1, FIG. 2B is a schematic plan configuration diagram, and FIG. 1 is a cross-sectional configuration diagram showing an internal configuration of an image forming apparatus 1. FIG. 2 is a schematic diagram illustrating a configuration of an exhaust device and a layout in the device when a viewpoint is placed on the left side of the image forming apparatus. FIG. 2 is a schematic plan view illustrating a configuration of an exhaust device and a layout in the device when a viewpoint is placed on the upper surface side of the image forming apparatus. 4 is a schematic plan view of a cross-sectional view illustrating the configuration and movement of a flow path opening / closing mechanism of the exhaust device 70. FIG. 3 is a flowchart showing a flow of operation of the exhaust device 70. FIG. 2 is a schematic plan view illustrating a configuration of an exhaust device 70A and an arrangement in the device when a viewpoint is placed on the upper surface side of the image forming apparatus 1A. 4 is a flowchart showing a flow of operation of an exhaust device 70A in the image forming apparatus 1A. FIG. 3 is a schematic plan view illustrating a configuration of an exhaust device 70B and an arrangement in the device when a viewpoint is placed on the upper surface side of the image forming apparatus 1B. It is a flowchart which shows the flow of operation | movement of the exhaust apparatus 70B in the image forming apparatus 1B.

Next, the present invention will be described in more detail with reference to the drawings with reference to embodiments and specific examples. However, the present invention is not limited to these embodiments and specific examples.
Also, in the description using the following drawings, it should be noted that the drawings are schematic and the ratio of each dimension and the like are different from the actual ones, and are necessary for the description for easy understanding. Illustrations other than members are omitted as appropriate.
In order to facilitate understanding of the following description, in the drawings, the front-rear direction is the X-axis direction, the left-right direction is the Y-axis direction, and the up-down direction is the Z-axis direction.

“First Embodiment”
(1) Overall Configuration and Operation of Image Forming Apparatus FIG. 1A is a front configuration diagram showing the overall appearance of the image forming apparatus 1 according to the present embodiment, FIG. 1B is a plan configuration diagram, and FIG. FIG. 2 and FIG. 2 are schematic sectional views showing the internal configuration of the image forming apparatus 1.
Hereinafter, the overall configuration and operation of the image forming apparatus 1 will be described with reference to the drawings.

(1.1) Overall Configuration The image forming apparatus 1 includes an image forming unit 2 that forms an image by an electrophotographic method, and a reading unit 3 that reads a document or the like above the image forming unit 2 by a reading device support unit 4. Supported and configured.
The image forming unit 2 includes a control device 10, a paper feeding device 20, a photosensitive unit 30, a developing device 40, a transfer device 50, a fixing device 60, and an exhaust device 70 in an internal space formed by a housing F (not shown). Arranged (shown in FIG. 2), the housing F is configured to be covered with a plurality of divided exterior covers 5.

(1.2) Image Forming Unit The control device 10 turns on the image forming device control unit 11 that controls the operation of the image forming device 1, the controller unit 12 that prepares image data according to the print processing request, and the exposure device LH. An exposure control unit 13 for controlling the power supply, a power supply device 14 and the like.

  At the bottom of the image forming unit 2, a paper feeding device 20 on which a large number of recording media P are stacked is provided. The paper P whose position in the width direction is determined by a regulating plate (not shown) is 1 from the top. Each sheet is pulled forward (−X direction) by the sheet drawer 22 and then conveyed to the nip portion of the registration roller pair 23.

  The photoconductor unit 30 includes a photoconductor drum 31 that is provided in parallel above the paper feeding device 20 (in the Z direction) and serves as an image carrier that is rotationally driven. Yellow (Y), magenta (M), cyan (C), and black (K) toner images are formed on the respective photosensitive drums 31 by the respective developing devices 40.

  Each color toner image formed on the photosensitive drum 31 of each photosensitive unit 30 is sequentially electrostatically transferred (primary transfer) onto the intermediate transfer belt 51 of the transfer device 50 to form a superimposed toner image in which the respective color toners are superimposed. Is done. The superimposed toner image on the intermediate transfer belt 51 is sent out from the registration roller pair 23 and is collectively transferred by the secondary transfer roller 52 onto the paper P guided by the conveyance guide.

The paper P onto which the toner images are collectively transferred in the transfer device 50 is conveyed to the fixing device 60 via the conveyance guide in a state where the toner images are not fixed, and is pressed and bonded by the pair of fixing rollers 61 and the pressure roller 62. The toner image is fixed by the action of heating.
The paper P on which the fixed toner image is formed is guided by a conveyance guide and discharged from the discharge roller pair 69 to the upper surface of the image forming unit 2.

  The image forming unit 2 is provided with an exhaust device 70 (shown in FIG. 2). The exhaust device 70 includes a ventilation duct 71 (shown in FIGS. 3 and 4) formed in the housing F toward the back side of the image forming apparatus 1, and a louver portion 5 a formed on the exterior cover 5. The heated air in the image forming unit 2 is discharged to the outside from 5b.

(2) Configuration of Exhaust Device FIG. 3 is a schematic diagram showing the configuration and arrangement of the exhaust device 70 when the viewpoint is on the left side of the image forming device 1, and FIG. FIG. 5 is a schematic plan view showing the configuration and movement of the flow path opening / closing mechanism of the exhaust device 70. FIG.
Hereinafter, the configuration of the exhaust device 70 will be described with reference to the drawings.

  The exhaust device 70 includes a ventilation duct 71, an exhaust fan 72, a flow path opening / closing mechanism 73, and a filter 74.

(2.1) Ventilation Duct A ventilation duct 71 is disposed in a housing F (not shown) on the back side of the image forming apparatus 1 to discharge heated air in the image forming apparatus 1 to the outside of the image forming apparatus 1. The air passage 71a is formed. An air inlet 71A on the air suction side of the ventilation duct 71 is positioned above the side of the fixing device 60, and an air outlet 71B on the exhaust side of the ventilation duct 71 is positioned on the exterior cover 5 side.

The exterior cover 5 is formed with a louver portion 5 a that is open to communicate with the outside of the image forming apparatus 1, and the first exhaust port 71 Ba of the ventilation duct 71 is provided on the back side of the image forming apparatus 1. It communicates with 5a.
The second exhaust port 71 </ b> Bb of the ventilation duct 71 communicates with the louver portion 5 b provided on the left side of the image forming apparatus 1.

(2.2) Exhaust Fan An exhaust fan 72 is disposed in the middle of the air passage 71 a in the air duct 71. The exhaust fan 72 rotates when a drive source (not shown) is driven by the image forming apparatus control unit 11 (see FIG. 1), and sucks air from the air inlet 71A and exhausts air in the ventilation duct 71 to the air outlet 71B. To the outside of the device.

(2.3) Flow path opening / closing mechanism A movable flap mechanism 73A as an example of a flow path opening / closing mechanism 73 for opening / closing the ventilation path 71a is provided on the downstream side of the exhaust fan 72 of the ventilation path 71a in the ventilation duct 71. ing.
As shown in FIG. 5A, the movable flap mechanism 73A is provided so as to intersect with the ventilation path 71a of the ventilation duct 71, and switches between a closed state and an opened state.

Specifically, the movable flap mechanism 73A rotates around the support shaft 73Aa whose axial direction intersects with the air passage 71a of the air duct 71, and the closed position of the air passage 71a indicated by the solid line in FIG. A movable flap 73Ab that can take the open position of the ventilation path 71a indicated by a broken line is provided.
In the present embodiment, a plurality of (five) movable flaps 73Ab are provided, and the movable flap mechanism 73A includes an actuator AC that drives each movable flap 73Ab between a closed position and an open position.

  As shown in FIG. 5B, the flow path opening / closing mechanism 73 is configured by a pair of shielding plates 73B provided to be openable and closable so as to face each other in the direction intersecting the air passage 71a of the air duct 71. The pair of shielding plates 73B may be driven between the closed position and the open position by the actuator AC.

(2.4) Filter A filter 74 is disposed on the downstream side of the second exhaust port 71Bb and the movable flap mechanism 73A of the ventilation duct 71.
The filter 74 is composed of a support frame 74a having an opening at the center and a scent filter material 74b in which a scent component is adsorbed in advance as an example of a scent source having a scent component. Alternatively, it may be configured to be detachable from the viewpoint of exchanging according to the life of the filter 74 or the like.

The scent filter material 74b is, for example, a material in which a fragrance such as aroma oil that volatilizes at a predetermined temperature is adsorbed in advance on an air permeable porous member. Since it is another, it is not specifically limited.
Further, activated carbon that adsorbs volatile substances generated in the image forming apparatus 1 may be further added to the filter material 74b.

In the exhaust device 70 configured as described above, when the exhaust fan 72 rotates, the air inside the image forming apparatus 1 is sucked into the air passage 71a from the air inlet 71A of the air duct 71, and the movable flap mechanism 73A is opened. In some cases, the air passes through the filter 74 and is exhausted from the first exhaust port 71Ba to the outside of the apparatus through the louver portion 5a of the exterior cover 5.
When the movable flap mechanism 73A is in the closed state, the air is exhausted from the second exhaust port 71Bb to the outside of the apparatus through the louver portion 5b of the exterior cover 5 without passing through the filter 74.

(3) Operation of Exhaust Device FIG. 6 is a flowchart showing an operation flow of the exhaust device 70 in the image forming apparatus 1.
Hereinafter, the operation of the exhaust device 70 will be described with reference to the drawings.

  The image forming apparatus 1 has a plurality of operation modes. The operation mode indicates a use state of the device, and in the example of the image forming apparatus 1, a standby state, a copy (copy) state, a print state, a scan state, a fax state, and the like correspond (in the following description, As for the operation mode, any state during printing / fax output / scanning or a state in which a plurality of these are simultaneously performed is used, standby mode for waiting for generation of a print job, or power consumption of the image forming apparatus 1 The state in the power saving mode for suppressing the amount is referred to as a standby state).

  The exhaust device 70 is stopped when the operation mode of the image forming apparatus 1 is in the standby state. The exhaust device 70 operates when the operation mode of the image forming apparatus 1 is in use, operates the exhaust fan 72 to take in the heated air in the image forming apparatus 1 through the ventilation duct 71, and filters 74 The scent is released when the inside is discharged from the louver portion 5a of the exterior cover 5 to the outside of the apparatus.

  In the image forming apparatus 1, when the number of printed sheets in one operation (job) is large, heat is generated in the fixing device 60, and the exhaust device 70 is continuously operated. With the operation of 70, the concentration of the scent component released from the louver portion 5a of the exterior cover 5 to the outside of the apparatus also increases. As a result, there is a concern that the scent in the surrounding environment including the user of the image forming apparatus 1 may exceed an appropriate concentration at which the person feels comfortable.

  On the other hand, in the image forming apparatus 1, when the number of printed sheets in one operation (job) is small, the exhaust device 70 is intermittently operated in conjunction with each job. The density | concentration of the fragrance component discharge | released from the louver part 5a of the cover 5 to the apparatus exterior becomes low. As a result, there is a possibility that the scent in the surrounding environment including the user of the image forming apparatus 1 does not reach an appropriate concentration at which the person feels comfortable.

In the image forming apparatus 1 according to the present embodiment, when the operation mode of the image forming apparatus 1 is in use, the movable flap mechanism 73A provided in the exhaust device 70 is accumulated in the operating time during which the image forming apparatus 1 operates. When the air pressure exceeds a predetermined threshold value, the air passage 71a of the air duct 71 is closed, and the air sucked from the inside of the device by the exhaust fan 72 does not pass through the filter 74 and passes through the second exhaust port 71Bb. From the outside through the louver portion 5b of the exterior cover 5.
Here, the operating time during which the image forming apparatus 1 operates is not limited to the operating time of the operating unit related to image formation, but includes the operating time of the exhaust fan 72, for example.

  In addition, even when the cumulative value of the number of printed sheets of the image forming apparatus 1 exceeds a predetermined threshold, the movable flap mechanism 73A closes the ventilation path 71a of the ventilation duct 71, and the exhaust fan 72 sucks air from the inside of the apparatus. The air thus discharged is exhausted from the second exhaust port 71Bb to the outside of the apparatus through the louver portion 5b of the exterior cover 5 without passing through the filter 74.

When receiving a print job, the image forming apparatus control unit 11 starts energization control to the fixing device 60 from the standby state to start a warm-up operation, and turns on the exhaust fan 72 of the exhaust device 70 (S101). .
As the fixing device 60 is heated, the air in the device sucked into the air passage 71a of the air duct 71 is gradually heated, passes through the filter 74, and passes through the filter 74 through the first exhaust port 71Ba. It is exhausted to the outside of the apparatus together with the scent through 5a.

The image forming apparatus control unit 11 adds up the operation time T, and determines whether or not the operation time T has reached a predetermined threshold value T1 (S102).
When the operation time T exceeds the threshold value T1 (S102: Yes), the image forming apparatus control unit 11 operates the actuator AC of the movable flap mechanism 73A to move each movable flap 73Ab to the closed position, and the ventilation duct 71. The air passage 71a is closed (S103).

As a result, the air in the apparatus sucked into the ventilation path 71a of the ventilation duct 71 is exhausted from the second exhaust port 71Bb to the outside of the apparatus through the louver portion 5b of the exterior cover 5 without passing through the filter 74. Is done.
Therefore, the concentration of the scent component released from the louver portion 5a of the exterior cover 5 to the outside of the apparatus is not increased more than necessary with the operation of the exhaust device 70, and in the surrounding environment including the user of the image forming apparatus 1 The fragrance can maintain an appropriate concentration at which a person feels comfortable.

If the operation time T does not exceed the threshold value T1 (S102: No), the image forming apparatus control unit 11 simultaneously accumulates the number of printed sheets N and determines whether the number of printed sheets N has reached a predetermined threshold value N1. (S104).
When the number N of printed sheets exceeds the threshold value N1 (S104: Yes), the image forming apparatus control unit 11 operates the actuator AC of the movable flap mechanism 73A to move each movable flap 73Ab to the closed position, and the ventilation duct 71. The air passage 71a is closed (S103).

  As a result, the air in the apparatus sucked into the ventilation path 71a of the ventilation duct 71 is exhausted from the second exhaust port 71Bb to the outside of the apparatus through the louver portion 5b of the exterior cover 5 without passing through the filter 74. Is done.

When the number of printed sheets N does not exceed the threshold value N1 (S104: No), the image forming apparatus control unit 11 holds the movable flap mechanism 73A in an open state and is sucked into the ventilation path 71a of the ventilation duct 71. The air passes through the filter 74 and is exhausted from the first exhaust port 71Ba to the outside of the apparatus together with the scent through the louver portion 5a of the exterior cover 5.
Therefore, even when a job with a small number of printed sheets is repeated and the fixing device 60 is turned off for each repeated job, and the temperature of the air in the apparatus is difficult to rise, the device from the louver portion 5a of the outer cover 5 is used. The fall of the density | concentration of the scent component discharge | released outside can be suppressed, and the moderate density | concentration which the scent in the surrounding environment including the user of the image forming apparatus 1 feels comfortable for a person can be maintained.

“Second Embodiment”
FIG. 7 is a schematic plan view showing the configuration of the exhaust device 70A when the viewpoint is placed on the upper surface side of the image forming apparatus 1A and the arrangement in the apparatus. FIG. It is a flowchart to show.

The basic configuration of the image forming apparatus 1A of the present embodiment is the same as that of the image forming apparatus 1 of the first embodiment, and the exhaust fan 72 is used when the cumulative value of operating time of the apparatus main body exceeds a predetermined threshold. This is different from the first embodiment in that the air volume of the filter 74 is increased and the scent source of the filter 74 is kept below the scent component volatility temperature.
Hereinafter, the operation of the exhaust device 70A in the image forming apparatus 1A of the present embodiment will be described with reference to FIG. 8, but the same reference numerals are given to the same components as those in the image forming apparatus 1 according to the first embodiment. Detailed description thereof will be omitted.

The exhaust device 70A includes a ventilation duct 71, an exhaust fan 72, and a filter 74. Upon receiving a print job, the image forming apparatus control unit 11 starts energization control from the standby state to the fixing device 60 and performs a warm-up operation. And the exhaust fan 72 of the exhaust device 70 is turned on (S201).
As the fixing device 60 is heated, the air in the device sucked into the air passage 71a of the air duct 71 is gradually heated, passes through the filter 74, and passes through the filter 74 through the first exhaust port 71Ba. It is exhausted to the outside of the apparatus together with the scent through 5a.

The image forming apparatus control unit 11 accumulates the operation time T and determines whether or not the operation time T has reached a predetermined threshold value T1 (S202).
When the operation time T exceeds the threshold value T1 (S202: Yes), the air volume of the exhaust fan 72 is increased (S203), and the scent source of the filter 74 is kept below the scent component volatilization temperature.

  Therefore, even when the image forming apparatus 1 </ b> A is operated exceeding a predetermined operating time T threshold value T <b> 1, the concentration of the scent component released from the louver portion 5 a of the exterior cover 5 to the outside of the apparatus is necessary. Without becoming higher than this, it is possible to maintain an appropriate concentration at which the scent in the surrounding environment including the user of the image forming apparatus 1 </ b> A feels comfortable for humans.

  Further, when the in-machine temperature is high, increasing the air volume of the exhaust fan 72 may increase the temperature of the filter 74. Therefore, reducing the air volume of the exhaust fan 72 and reducing the air volume passing through the filter 74. You can get the same effect.

“Third Embodiment”
FIG. 9 is a schematic plan view showing the configuration of the exhaust device 70B when the viewpoint is placed on the upper surface side of the image forming apparatus 1B and the arrangement in the apparatus. FIG. 10 shows the flow of the operation of the exhaust device 70B in the image forming apparatus 1B. It is a flowchart to show.

The basic configuration of the image forming apparatus 1B of the present embodiment is the same as that of the image forming apparatus 1 of the first embodiment, and air flows from the intake port 71A toward the first exhaust port 71Ba and the second exhaust port 71Bb. The first exhaust fan 72A that generates an air flow at the first exhaust fan 72A is disposed between the first exhaust port 71Ba and the second exhaust port 71Bb on the downstream side of the first exhaust fan 72A. And a second exhaust fan 72B that generates an air flow so that the air flows toward the exhaust port 71Bb of the second exhaust port 71Bb, and the second value when the accumulated operating time of the apparatus main body exceeds a predetermined threshold value. This is different from the first embodiment in that the exhaust fan 72B is stopped.
Hereinafter, the operation of the exhaust device 70B in the image forming apparatus 1B according to the present embodiment will be described with reference to FIG. 10, and the same reference numerals are given to the same components as those in the image forming apparatus 1 according to the first embodiment. Detailed description thereof will be omitted.

The exhaust device 70B includes a ventilation duct 71, a first exhaust fan 72A, a second exhaust fan 72B, and a filter 74. When the image forming apparatus control unit 11 receives a print job, the image forming apparatus control unit 11 moves from the standby state to the fixing device 60. And the warm-up operation is started, and the first exhaust fan 72A of the exhaust device 70B is turned on (S301).
As the fixing device 60 is heated, the air in the device sucked into the air passage 71a of the air duct 71 is gradually heated, passes through the filter 74, and passes through the filter 74 through the first exhaust port 71Ba. It is exhausted to the outside of the apparatus together with the scent through 5a.

The image forming apparatus control unit 11 adds up the operation time T, and determines whether or not the operation time T has reached a predetermined threshold value T1 (S302).
When the operation time T exceeds the threshold value T1 (S302: Yes), the first exhaust fan 72A is turned off and the second exhaust fan 72B is turned on (S303).

As a result, the air in the apparatus sucked into the air passage 71a of the air duct 71 passes through the second exhaust port 71Bb from the second exhaust port 71Bb without passing through the filter 74 by the second exhaust fan 72B. It is exhausted to the outside of the apparatus through 5b.
Therefore, even when the operation exceeds the threshold value T1 of the predetermined operation time T, the concentration of the scent component released from the louver portion 5a of the exterior cover 5 to the outside of the device is increased with the operation of the exhaust device 70B. The scent in the surrounding environment including the user of the image forming apparatus 1B can be maintained at an appropriate concentration at which the user feels comfortable.

DESCRIPTION OF SYMBOLS 1, 1A, 1B ... Image forming apparatus 2 ... Image forming part 3 ... Reading part 4 ... Reading apparatus support part 5 ... Exterior cover 5a, 5b ... Louver part 10 ... Control device 20 ... paper feeding device 30 ... photosensitive unit 40 ... developing device 50 ... transfer device 60 ... fixing device 70, 70A, 70B ... exhaust device 71 ... ventilation duct 71A ... Intake port 71B ... Exhaust port 71Ba ... First exhaust port 71Bb ... Second exhaust port 72, 72A, 72B ... Exhaust fan 73 ... Flow path opening / closing mechanism 74 ..Filter 74b ... Fragrance filter material
90 ... Operation information section

Claims (6)

A ventilation path formed with a first exhaust port for discharging the air inside the apparatus main body to the outside of the apparatus main body, and a second exhaust port for discharging the air to the outside from a direction intersecting the first exhaust port. When,
A fan that generates an air flow such that air flows toward the first exhaust port and the second exhaust port;
Adjusting means for adjusting the passage amount of the air, which is disposed downstream of the fan and upstream of the first exhaust port and discharged from the first exhaust port , according to the operation of the apparatus main body;
And an adding means provided between the first exhaust port and the adjusting means so as to face the first exhaust port and for adding a scent to the air discharged from the first exhaust port. ,
An image forming apparatus. Control means for controlling the operation of the fan according to the operation of the apparatus body,
The adjusting means closes the first exhaust port when a cumulative value of operating time of operation of the apparatus main body exceeds a predetermined threshold;
The image forming apparatus according to claim 1. Control means for controlling the operation of the fan according to the operation of the apparatus body,
The adjusting means holds the first exhaust port in an open state until a cumulative number of printed sheets of the apparatus main body reaches a predetermined threshold;
The image forming apparatus according to claim 1. Control means for controlling the operation of the fan according to the operation of the apparatus body,
The adjusting means adjusts the scent discharge amount of the scent adding means by increasing or decreasing the air volume of the fan when the accumulated value of the operating time of the operation of the apparatus exceeds a predetermined threshold.
The image forming apparatus according to claim 1. A ventilation path formed with a first exhaust port for discharging the air inside the apparatus main body to the outside of the apparatus main body, and a second exhaust port for discharging the air to the outside from a direction intersecting the first exhaust port. When,
A first fan that generates an air flow such that air flows toward the first exhaust port;
A second air flow is arranged between the first exhaust port and the second exhaust port on the downstream side of the first fan and generates an air flow so that air flows toward the second exhaust port. With fans,
Control means for controlling the operation of the first fan and the second fan according to the operation of the apparatus main body;
It provided facing said first outlet, and a adding means for adding fragrance to the air discharged from the first outlet,
Stopping the first fan when a cumulative value of operating time of operation of the apparatus main body exceeds a predetermined threshold;
An image forming apparatus. The scent adding means is a filter that holds a scent source having a scent component inside and releases the scent according to temperature,
The image forming apparatus according to claim 1, wherein the image forming apparatus is an image forming apparatus.

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