JPH0484148A - Image forming device - Google Patents

Abstract

PURPOSE:To decrease the drawing around of bundled wires and to facilitate assembly by constituting the above device in such a manner that a connector connected to an electrical member packaged to a 1st unit intrudes into a 2nd unit and that the electrical member assembled in the 2nd unit is connected to the connector when loaded into the 2nd unit. CONSTITUTION:The mounting part 2e of a power source 15 which is the electrical member is provided on a right side plate 2b. This mounting part 2e is formed to a case shape opened on the side. Openings 2e1, 2e2 are formed in the upper part of the mounting part 2e. The connectors 7d, 7e provided in the 1st unit 1 are so constituted as to intrude into the mounting part 2e via the openings 2e1, 2e2 when the 1st unit 1 is connected to the 2nd unit 2. Then, the connectors 15a, 15b provided in the power source 15 are connected to the unit connectors 7d, 3e when the 1st unit 1 is coupled to the 2nd unit 2 and the power source 15 is loaded from the side. The drawing around of the bundled wires is shortened in this way and the costs of the parts and assembly are reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an image forming apparatus in which a first unit and a second unit are combined to form an apparatus main body.

<Prior Art> In order to facilitate transportation and assembly, some image forming apparatuses are constructed by constructing a main body of the apparatus from a plurality of units, which are then combined and assembled.

For example, in an image forming apparatus consisting of a first unit 50 and a first unit 51 as shown in FIG. After connecting the two units 50 and 51, the connectors 50c and 51c attached to the tips of bundled wires 50b and 51b drawn out from the respective electrical components 50a and 50b are connected to electrically connect both units 50 and 51.

<Problems to be Solved by the Invention> However, in the above configuration, the east line that electrically connects the first unit 50 and the second unit 51 is 5'Qb.
, 51b and connectors 50c, 51c are required, and the routing of the bundles M50b, 51b becomes complicated, making it susceptible to electrical noise.

SUMMARY OF THE INVENTION An object of the present invention is to provide an image forming apparatus that solves the above-mentioned conventional problems, reduces the number of east lines by reducing the number of east lines to the necessary minimum, and is easy to assemble.

Means for Solving the Problems> A typical means according to the present invention for solving the above problems is to solve the above problems in an image forming apparatus in which a first unit and a second unit are combined to form an apparatus main body. The connector connected to the electrical component mounted in the first unit is configured to enter the second unit, and the electrical component to be incorporated in the second unit is connected to the connector when the second unit is loaded with the electrical component. It is characterized by its composition.

<Operation> In the above means, when the electrical component is loaded into the second unit, it is also connected to the first unit via the second unit and the connector. Therefore, only the east line connecting the first unit and the connector is sufficient. This makes it possible to shorten the route of the East Line and reduce parts costs and assembly costs.

<Embodiment> Next, an embodiment of an image forming apparatus using the above-mentioned means will be described.

[First Embodiment] FIG. 1 is an explanatory exploded view of essential parts of an image forming apparatus according to the first embodiment, and FIG. 2 is an explanatory diagram of the configuration of a mounting section for loading electrical components into a second unit. FIG. 3 is an explanatory diagram of the image forming configuration of the apparatus.

The overall configuration of the image forming apparatus will be explained using FIG. 1.
In this apparatus, a first unit 1 and a second unit 2 are combined to form an apparatus main body A, and an image forming means is built into the apparatus main body A.

The first unit l has left and right side plates 1a as shown in FIG.
, lb are connected by a conveyance guide plate IC1, an optical stand 1d, and a fixing device stand 1e, thereby forming a first unit frame. A laser scanner 3 is loaded on the optical bench 1d, a fixing device 4 is loaded on the fixing device table 1e, and an image forming unit 5 and a high voltage unit electrically connected thereto are installed in a predetermined position of the frame. Like loading 6 (configured).

When the fixing device 4 is loaded onto the fixing device stand 1e, the connector 4a of the fixing device 4 is connected to the fixing connector 7a attached to the fixing device stand 1e. Furthermore, when the high voltage unit 6 is loaded, the connector 6a attached to the unit 6 is transferred to the high voltage connector 7 attached to the transport guide Fi, 1c.
It is configured to be connected to b. Furthermore, a DC controller 8 is mounted on the laser scanner 3 to control electrical signals.

The DC controller 8 controls electrical components of the first unit 1, and electrically controls the laser scanner 3, the fixing device 4, the high-voltage unit 6, and a feeding unit (not shown) that feeds the recording sheet. This is what we do. Therefore, the DC controller 8 is electrically connected to the laser scanner 3, and is also connected to the fixing connector 7a and the high voltage connector 7b via bundled wires 9a and 9b. It is connected to a feeding connector 7c connected to a power feeding and transmitting board for recording sheets loaded in the second unit 2, which will be described later, via a line 9c.

Furthermore, a connector mounting part lf is formed in the lower part of the right side plate 1b, and a connector mounting part lf is provided with connectors 7d, 7e.
is attached so as to protrude laterally from the right side plate 1b. The connectors 7d and 7e are electrically connected to the DC controller 8 via bundled wires 9d and 9e.

Next, the second unit 2 has left and right side plates 2a as shown in FIG.
, 2b are connected by a cassette loading stand 2c for loading the sorting cassette 7) 10 and a conveyance guide plate 2d for guiding the conveyance of recording sheets, thereby forming a second unit frame. Further, a power supply and transmission board 14 is attached to the left side plate 2a to control the driving of a feed roller 12 for feeding the recording sheet 11 from the inside of the cassette 0 and a conveyance roller 13 (see FIG. 3). ing. A connector (not shown) is attached to this electrical equipment board 14, and is configured so that when the first unit 1 is connected to the second unit 2, the connector is connected to the feeding connector 7c.

Also, on the right side plate 2b is a mounting part 2 for a power supply 15, which is an electrical component.
e is provided. This attachment part 2e is formed in the shape of a case with open sides, and openings 2e+ and 2ez are formed in the upper part of the attachment part 2e. Then, when the first unit 1 is connected to the second unit 2,
The unit connectors 7d and 7e provided in the first unit 1 are configured to fit into the mounting portion 2e through the openings 2e and 2ez.

Therefore, as shown in FIG. 2, when the first unit 1 is coupled to the second unit 2 and the power supply 15 is loaded from the side into the mounting portion 2e, the connectors 15a, 1 provided on the power supply 15
5b is connected to unit connectors 7d and 7e.

As a result, the power supply 15 is loaded into the second unit 2, and at the same time, the power supply 15 and the DC controller 8 of the first unit 1 are electrically connected.

When forming an image in the image forming apparatus assembled as described above, a laser beam emitted according to an image signal forms an image by a polygon mirror 3a and a reflecting mirror 3b as shown in FIG. The photosensitive drum 5a in the unit 5 is irradiated with light. This photosensitive drum 5a is used as the third drum during image formation.
While rotating in the direction of the arrow in the figure, its surface has been charged in advance by the primary charger 5b. When the laser beam is irradiated, an electrostatic latent image is formed, and then the developing device 5C
A toner image is formed.

Further, a recording sheet 11 is fed to the photosensitive drum 5a from a feeder IO by a feeding roller 12 and a conveying roller 13, and the toner image is transferred onto the recording sheet 11 by a transfer charger 5d and a separation charger 5e.

After the toner image has been transferred, heat and pressure are applied to the recording sheet number 1 by a pair of fixing rollers 4a and 4b serving as a fixing device 4, and the recording sheet 11 with the toner image fixed thereon is discharged from the discharge port 16.

On the other hand, the photosensitive drum 5a to which the toner image has been transferred is configured to have residual toner removed by a cleaning section 5f, and then charged again by a secondary charger 5b.

The image forming apparatus having the above configuration is easy to assemble and does not require a special east line for connecting the first unit 1 and the second unit 2 (especially the second unit 2 ), and the bundled wire 9a is unnecessary.
- 9e can be processed only by the first unit 1, which makes it possible to reduce the number of routes on the east line and reduce the influence of electromagnetic noise. In addition, the east line can be shortened to reduce parts costs, and furthermore, it can be easily assembled.

[Second Embodiment] Next, a second embodiment for loading the power source 15 is shown in FIG. Incidentally, the same functional parts as in the first embodiment are given the same reference numerals and the explanation thereof will be omitted.

In this embodiment, unit connectors 7d and 7e are attached to the connector attachment portion 1f of the first unit 1 facing downward. On the other hand, the power supply mounting part 2e of the second unit 2
is formed in the shape of a case with its lower part open, and a locking protrusion 2e3 is formed at a predetermined position on the inner wall.

Therefore, after the first unit 1 is connected to the second unit 2, when the power supply 15 is inserted into the power supply mounting part 2e from below, the tats will fit into the power supply recess 15c with the locking protrusion 2e3 of the mounting part 2e. In addition to being fixed, the connectors 7d, 7
e and supplies power to each electrical component.

Even with the configuration as described above, the same effects as in the first embodiment can be obtained.

[Third Example]

Next, a third embodiment for loading the power source 15 is shown in FIG. Note that the same functional parts as in the first embodiment are given the same reference numerals, and the explanation thereof will be omitted.

In this embodiment, unit connectors 7d and 7e are attached to the connector attachment portion 1f of the first unit 1 facing right. On the other hand, the power supply attachment part 2e of the first unit 2 is formed in a case shape with the right side open.

Therefore, when the first unit 1 is coupled to the second unit 2 and the power supply 15 is inserted from the right side of the mounting portion 2e, the power supply 15 is loaded into the second unit 2, and the connectors 15a, 15b of the power supply 15 are loaded. are unit connectors 7d and 7e
The same effect as in the first embodiment can be obtained.

In each of the embodiments described above, the electrical component A15 is used as an example of the electrical component to be loaded into the second unit 2, but this electrical component need not be limited to the power source.

Furthermore, in the first embodiment described above, when power is supplied to the sheet feeding unit provided in the second unit 2, power is supplied via the east line 9c provided in the second unit 2. , when the power source 15 is loaded into the second unit 2, the power source 1
Even if the second unit 2 and the feeding unit 5 are configured to be directly connected, the number of east lines connecting the second unit 2 and the first unit 1 can be reduced.

<Effects of the Invention> As described above, the present invention is configured such that when the second unit is loaded with an electrical component, it is also connected to the first unit via the second unit and the connector. Only the east line connecting the first unit and the connector becomes sufficient. Therefore, it is possible to effectively prevent electromagnetic noise by shortening the route of the east line, and it is also possible to reduce parts costs and assembly costs.

[Brief explanation of the drawing]

Fig. 1 is an exploded explanatory diagram of the main parts of an image forming apparatus according to an embodiment of the present invention, Part 2 is an explanatory diagram of the configuration of a mounting section for loading electrical components into the second unit, and Fig. 3 is an explanatory diagram of the entire configuration of the apparatus. Explanatory diagram,
FIG. 4 is an explanatory diagram of the configuration according to the second embodiment, the fifth is an explanatory diagram of the configuration according to the third embodiment, and FIG. 6 is an explanatory diagram of the prior art. A is the apparatus main body, l is the first unit, la lb is the side plate, 1c is the transport guide plate, 1d is the optical stand, 1e is the fixing device stand, 1f is the connector mounting part, 2 is the second unit, 2a, 2
2c is a side plate, 2d is a conveyance guide plate, 2e is a mounting part, 2e. 2e4 is an opening, 2e3 is a locking protrusion, 3 is a laser scanner, 4 is a fixing device, 4a is a connector, 5 is an image forming unit, 5a is a flash drum, 5b is a primary charger, 5c is a developer, 5d is a transfer A charger, 5e is a separation charger, 5f is a cutting cleaning section, 6 is a high voltage unit, 6a is a connector, 7a is a fixing connector, 7b is a high voltage connector, 7c is a feeding connector, 7'd and 7e are unit connectors, 8 is D
C controller, 9a, 9b, 9c, 9d, 9e are wire bundles, 10 is a sheet feeder, 11 is a recording sheet, 12 is a feed roller, 13 is a conveyance roller, 14 is a temporary power supply device, 15
is a power supply, 15a and 15b are connectors, 15c is a recess, 1
6 is a discharge port. Figure 112

Claims (1)

[Claims] In an image forming apparatus in which a first unit and a second unit are combined to form an apparatus main body, a connector connected to an electrical component mounted on the first unit is connected to the second unit. An image forming apparatus characterized in that the image forming apparatus is configured to fit into the second unit and to be connected to the connector when an electrical component to be incorporated in the second unit is loaded into the second unit.