JP2001018481A - Image forming apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance maintenance properties by enabling the simple mounting of a power supply part. SOLUTION: A power supply part 10 is mounted on an apparatus main body 1 in a freely detachable manner and a connector is attached to the surface opposed to the apparatus main body 1 of the power supply part 10 so as to be detachable only by the insertion movement and drawing-out movement of the power supply part 10. A means grounding the power supply part 10 to the apparatus main body 1 when the power supply part 10 is mounted is provided. As an image forming apparatus, a desktop ink jet printer is enumerated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus, and more particularly to a structure for attaching a power supply unit to an apparatus main body.

[0002]

2. Description of the Related Art For example, in an image forming apparatus such as a printer, a facsimile, a copying machine, etc., a power supply for supplying power to a control circuit and a drive mechanism is required.
It may be necessary to remove or replace the power supply due to failure or maintenance.

In a conventional image forming apparatus, when removing the power supply unit, it is necessary to remove a number of components such as fastening members provided for removal of related components and grounding, and then remove the power supply unit. I can do it.

[0004]

However, if a large number of parts must be removed to remove the power supply unit as described above, the workability is poor, and the power supply unit after maintenance must be re-attached. The maintenance work is poor, for example, it takes time and effort to mount a new power supply unit.

[0005] The present invention has been made in view of the above points, and has as its object to improve maintainability.

[0006]

Means for Solving the Problems In order to solve the above problems, an image forming apparatus according to claim 1 has a configuration in which a power supply unit is detachably attached to an apparatus main body.

[0007] The image forming apparatus according to the second aspect is the first aspect.
In the above image forming apparatus, a detachable connector is attached to a surface facing the power supply unit and the apparatus main body.

According to a third aspect of the present invention, there is provided the image forming apparatus according to the second aspect.
In the image forming apparatus, the insertion movement of the power supply unit,
The connector of the power supply unit and the connector of the apparatus main body are configured to be disengaged only by the drawer movement.

According to a fourth aspect of the present invention, there is provided the image forming apparatus according to the first aspect.
In any one of the image forming apparatuses according to any of the first to third aspects, the power supply unit may be configured to be grounded to the apparatus main body when the power supply unit is mounted.

According to a fifth aspect of the present invention, there is provided the image forming apparatus according to the first aspect.
In any one of the image forming apparatuses according to any one of (1) to (4), the image forming apparatus is a desktop ink jet printer.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective explanatory view illustrating an arrangement of a mechanism unit and a power supply unit of an inkjet printer as an image forming apparatus according to a first embodiment of the present invention;
2 is an external perspective view of the printer as viewed from the rear, FIG. 3 is an external perspective view of the printer illustrating the attachment / detachment of a power supply unit, and FIG. 4 is an illustration of attachment / detachment of the power supply unit of the printer. FIG. 5 is an explanatory view for explaining a state where the power supply unit of the printer is removed, and FIG. 6 is an explanatory view for explaining a state where the power supply unit of the printer is mounted. is there

In this ink jet printer,
A carriage 2 having a recording head mounted inside an apparatus body 1
Main scanning motor 3 for moving the paper in the main scanning direction, sub-scanning motor 4 for scanning the paper in the sub-scanning direction, various sensors 5,
6, 7 and a board 8 on which a control unit and a drive unit for controlling the entire apparatus are mounted, and a power supply unit mounting unit 1a (see FIG. A power supply unit 10 for supplying power and the like is detachably mounted, and a power cord 11 is connected to the power supply unit 10.

The cover of this ink jet printer has a lid cover 17 for covering the power supply unit 10 together with an upper cover 15 and a lower cover 16 so that only the lid cover 17 can be removed.

Further, as shown in FIG.
On the opposing surface of the main body 1 and the apparatus main body 1, connectors 18 and 19 which can be engaged and disengaged from each other for connecting a power system and a signal system are arranged to face each other. The case 20 of the power supply unit 10
And a main body 1 with a fastening portion 20 for grounding.
a and 1b are provided and fastened by the fastening member 21.

In this ink jet printer, when the power supply unit 10 is removed for maintenance or replacement,
Since the power supply unit 10 is exposed by removing the lid cover 17 as shown in FIG. 3, the power supply unit 10 may be pulled out after removing the fastening member (screw) 20 as shown in FIG.

Then, after the maintenance or a new power supply unit 1
In order to mount the power supply unit 0, the power supply unit 10 may be inserted into the power supply unit mounting unit 1 a of the apparatus main body 1, and then the lid cover 17 may be mounted in the reverse procedure.

By detachably attaching the power supply unit 10 to the apparatus main body 1 in this manner, maintenance, replacement, and other operations are facilitated, and maintainability is improved.

At this time, as shown in FIG. 5, if the power supply unit 10 is pulled out from the apparatus main body 1, the connector 18 of the power supply unit 2 and the connector 19 of the apparatus main body 1 are moved out of the power supply unit 2. When the power supply unit 10 is inserted into the apparatus main body 1 as shown in FIG. 6, the connector 18 of the power supply unit 2 and the connector 19 of the apparatus main body 1 are moved by inserting the power supply unit 2 as shown in FIG. Engage only by operation.

As described above, the power supply unit 10 is connected to the apparatus main body 1.
When the power supply unit 10 is detachably attached to the power supply unit 10, the power supply unit 10 and the apparatus main body 1 are further provided with opposed connectors. This is unnecessary, and the maintainability is further improved.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. 7 is an external perspective view of a main part of the printer according to the embodiment, which illustrates attachment and detachment of a power supply unit, and FIG. 8 is an explanatory diagram for explaining a state where the power supply unit is removed from the printer. FIG. 1 is an explanatory diagram for explaining a state in which the power supply unit of the printer is mounted.
Reference numeral 0 is an explanatory diagram of a power supply unit of the printer and an engagement unit of the apparatus main body.

In this embodiment, the power supply 10
A male member 23 is provided near the bottom of the side surface of the case 20, and a female member 24 with which the male member 23 of the power supply unit 10 engages is provided on the inner wall surface of the apparatus main body 1. The male member 23 and the female member 24 are formed in a spring shape so that the male member 23 is fitted into the female member 24 when the power supply unit 10 is mounted in the power supply unit mounting portion 1a of the apparatus main body 1. ing. Here, the fastening member 21 of the above embodiment for electrically grounding the power supply unit 10 to the apparatus main body 1 is not provided.

With this configuration, the power supply unit 10
When the device is inserted into the power supply unit mounting portion 1a of the device main body 1, as shown in FIG.
Fits into the female member 24 of the apparatus main body 1 and firmly adheres by the spring property. As a result, the power supply unit 10 is electrically grounded to the apparatus main body 1.

As described above, the provision of the means for grounding the power supply unit when the power supply unit is mounted on the apparatus main body eliminates the necessity of removing and tightening fastening parts for grounding, and further improves maintainability. improves.

Next, a third embodiment of the present invention will be described with reference to FIG.
1 and FIG. FIG. 11 is an explanatory sectional view of a main part in a state where the power supply unit of the embodiment is mounted,
FIG. 4 is a perspective explanatory view as viewed from the inner surface side of the lid cover. In this embodiment, a leaf spring 25 is provided on the inner surface of the lid cover 17 to press the back surface of the power supply unit 10 when the power supply unit 10 is mounted.

With this configuration, the power supply unit 10
When the power supply unit 10 is mounted on the apparatus main body 1 and the lid cover 17 is mounted, similarly to the above-described second embodiment,
The male member 23 fits into the female member 24 of the apparatus main body 1 and firmly adheres to the female member 24 by a spring property. Further, as shown in FIG.
The male member 23 and the female member 24 are more firmly adhered to each other, and the electrical grounding is more reliably performed.

In each of the above embodiments, the present invention has been described as an example in which the present invention is applied to a desktop type ink jet printer. can do.

[0027]

As described above, according to the image forming apparatus of the first aspect, since the power supply unit is detachably attached to the apparatus main body, maintenance and replacement of the power supply unit can be performed. This facilitates maintenance and improves maintainability.

According to the image forming apparatus of the second aspect, the image forming apparatus of the first aspect has a configuration in which a detachable connector is attached to a surface facing the power supply unit and the apparatus main body. The connector between the power supply unit and the apparatus main body can be engaged and disengaged only by the operation of attaching and detaching the unit, thereby further improving the maintainability.

According to the image forming apparatus of the third aspect, in the image forming apparatus of the second aspect, the connector of the power supply section and the connector of the apparatus main body are disengaged only by the insertion movement and the withdrawal movement of the power supply section. With this configuration, the connector between the power supply unit and the apparatus main body can be engaged / disengaged only by the operation of attaching / detaching the power supply unit, thereby further improving the maintainability.

According to the image forming apparatus of the fourth aspect, in the image forming apparatus of any one of the first to third aspects, the power supply unit is grounded when the power supply unit is mounted. A fastening member for installing the part is not required, and the maintainability is further improved.

According to the image forming apparatus of the fifth aspect, in the image forming apparatus of any one of the first to fourth aspects, the image forming apparatus is configured as a desktop ink jet printer. The performance is improved.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view illustrating an arrangement of a mechanism unit and a power supply unit of an inkjet printer as an image forming apparatus according to a first embodiment of the present invention;

FIG. 2 is an external perspective view of the printer as viewed from the rear.

FIG. 3 is an external perspective view illustrating the attachment / detachment of a power supply unit of the printer as viewed from the rear.

FIG. 4 is an external perspective view of a main part, viewed from the rear, illustrating attachment and detachment of a power supply unit of the printer.

FIG. 5 is an explanatory diagram for explaining a state in which a power supply unit of the printer is removed.

FIG. 6 is an explanatory diagram for explaining a state in which the power supply unit of the printer is mounted.

FIG. 7 is an external perspective view of a main part, viewed from behind, for explaining attachment and detachment of a power supply unit of a printer according to a second embodiment of the present invention.

FIG. 8 is an explanatory diagram for explaining a state where a power supply unit of the printer is removed.

FIG. 9 is an explanatory diagram for explaining a state in which the power supply unit of the printer is mounted.

FIG. 10 is an explanatory diagram of a power supply unit and an engagement unit of the apparatus main body of the printer.

FIG. 11 is an explanatory cross-sectional view of a main part in a state where a power supply unit according to a third embodiment of the present invention is mounted.

FIG. 12 is an explanatory perspective view of the lid cover of FIG. 11 viewed from the inner surface side;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Device main body, 2 ... Carriage, 3 ... Main scanning motor, 4
... sub-scanning motors, 5, 6, 7 ... sensors, 8 ... substrates, 1
0: power supply unit, 11: power cord, 15: upper cover,
16 lower cover, 17 lid cover, 21 case, 21
... fastening members, 23 ... male members, 24 ... female members, 25 ...
Leaf spring.

Continued on the front page F term (reference) 2C061 AP03 AP04 AQ05 BB11 CD08 CF12 2H071 BA14 BA20 DA34 5B011 DB13 DB19 DB22 DB23 EA10 EB08 5C062 AA02 AA05 AB49 AD05 AD06 BA00

Claims (5)

[Claims] 1. An image forming apparatus, wherein a power supply unit is detachably attached to an apparatus main body. 2. The image forming apparatus according to claim 1, wherein a detachable connector is attached to a surface of the power supply unit facing the apparatus main body. 3. The image forming apparatus according to claim 2, wherein the connector of the power supply unit and the connector of the apparatus main body are disengaged only by inserting and pulling out the power supply unit. Forming equipment. 4. The image forming apparatus according to claim 1, further comprising means for grounding the power supply unit to the apparatus main body when the power supply unit is mounted. Image forming device. 5. The image forming apparatus according to claim 1, wherein the image forming apparatus is a desktop ink jet printer.