JPS6392960A - Electronic copying machine - Google Patents

Abstract

PURPOSE:To prevent a developing device or a cleaning device in the 1st unit from being inclined by constituting a copying machine body of two units and separating the 1st unit from the 2nd unit while keeping the parallel state of both the units. CONSTITUTION:The copying machine body 1 is divided into the 1st upper units 1a and the 2nd lower unit 1b. When hooks 27 of locking devices 26 on both the end parts of the front face of the body 1 are disengaged from pins 28, the body 1 is automatically pushed up by the push-up force of a supporting device 21 and jammed paper P or the like can be removed. When the unit 1a is pushed down and the hooks 27 are engaged with the pins 28, copy enabled status can be obtained. The device 21 is constituted of a cylinder 22, a guide rod 23, a compression spring 25 and so on. Since the unit 1a can be separated from the unit 1b while keeping the parallel state of both the units, the developing device 6 or the cleaning device 9 in the unit 1 can be prevented from being inclined at the time of said separation.

Description

Detailed Description of the Invention [Objective of the Invention] (Industrial Application Field) The present invention comprises a copying machine main body consisting of a seventh unit and a second unit, and the first unit can be replaced as needed. The present invention relates to an improvement in electronic copying in which a paper conveyance path section and the like can be opened by separating the second unit from the second unit.

(Prior Art) In recent years, electronic copying machines have become smaller and lighter, and many types of desk-top and other types of electronic copying machines have been developed and put into practical use. In this type of small electronic copying machine, if paper becomes sticky in the paper transport path from the paper feed section to the transfer section, peeling section, fixing section, and paper ejection section, there is only a small space for inserting your fingers, so it is difficult to remove the paper. There is a problem in that the removal work is extremely difficult.

Therefore, in the past, the main body of the copying machine was constructed of an upper unit and a lower unit in a state substantially along the transfer path, and one end of these units was pivotally connected, and the upper unit could be rotated and displaced as necessary. A system in which the paper transport path can be opened by opening the paper transport path has been put into practical use.

(Problems to be Solved by the Invention) However, in the conventional upper unit in which the free end side is lifted and rotated to an inclined state, the developing device and cleaning device disposed in the upper unit are The device is also tilted, and the developer stored or collected in the device is not only lopsided, impairing normal operation, but also has the disadvantage that, in severe cases, it can leak outside and contaminate the inside of the tank. In addition, if you open the upper unit when the document table installed on the top of the upper unit is at the normal stop position, the document table will suddenly move toward the lower end of the slope due to its own weight, which is extremely dangerous and will cause a shock when it reaches the end. The force has a negative impact on each part. Therefore, before opening the upper unit, there is a drawback that it is necessary to move the document table to a position where it will not move even if it is opened, or to provide a separate document table fixation@stomer for when the document table is opened.

The present invention has been made based on the above circumstances, and its object is to provide an electronic copying machine in which the first unit can be separated from the second unit while maintaining the parallel state without tilting. This is what we are trying to provide.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a copying/opening main body configured with a first unit and a second unit. A unit opening/closing holding mechanism is provided that allows the first unit to be separated from the second unit while maintaining a parallel state.

(Function) That is, in the present invention, since the first unit can be operated from the second unit while maintaining a parallel state without tilting, the developing device incorporated in the first unit can and the cleaning device will not tilt.
The developer contained or collected in these does not become uneven and impair normal operation, or leak to the outside and contaminate the inside of the machine.

Furthermore, it is possible to separate the first unit from the second unit without previously moving the document table provided on the top surface of the first unit or installing a device for fixing it.

(Example) .

An embodiment of the present invention will be described below based on FIGS. 1 to 3. 1 in the figure is the copying machine main body, and this copying machine main body 1
A photosensitive drum 3 that rotates clockwise at a circumferential speed equal to the moving speed of a document table 2 provided on the upper surface of the copying machine body 1 is provided approximately in the center. Around the photosensitive drum 3, a band R unit 4, an exposure device 5, a developing device W6, a transfer section M7, a peeling bag W18, and a cleaning device 9 are arranged in order along the rotation direction.

Further, inside the copying machine main body 1, there is a transfer section 12 formed between the photoreceptor drum 3 and the transfer device 7, and a fixing device, which transfers the transfer paper P taken out from the paper feed cassette 10 via the paper feed row 511. A paper transport path 15 is formed to sequentially pass through M13 and transport the paper to be ejected to the copy receiver 14. This paper transport path 15 includes a paper guide plate 16 disposed between the paper feed cassette 10 and the transfer device 7, a conveyor belt 17 stretched between the peeling III device 8 and the fixing device [13], and the fixing device [13]. Device 13
The paper guide plates 18, 19, etc. disposed before and after the paper guide plates 18, 19, etc. are formed in a substantially horizontal state by the upper surface portions thereof. Further, a pair of paper ejection rollers 20 is disposed at the end of the paper transport path 1-5 to smoothly eject the image-fixed transfer paper P that has passed through the fixing device 13 to the copy receiver 14. There is.

In addition, a copying machine main body 1 incorporating such internal components
is divided into upper and lower halves at a position substantially along the paper transport path 15, and as needed, as shown in FIG. They are kept separated so that almost the entire paper transport path 15 can be exposed. That is, a pair of support devices 21.degree. 21 are attached to both side surfaces of the copying machine main body 1, respectively, and constitute a unit opening/closing holding device 30. These supporting devices 21..., as shown in FIG. It consists of a bracket 24 whose lower end is fixed, and a compression spring 25 externally fitted in the middle of a corresponding guide rod 23 between the bracket 24 and the cylinder 22.

Then, each of the support devices 21 having such a configuration is attached to the first unit 1a with the cylinder 22 at the top,
In addition, by attaching the bracket 24 in a state where it is fixed to the second unit 1b at the bottom, the first unit 1
A is guided so as to be movable up and down by guide rods 23, and is always held in an upwardly pushed state by compression springs 25.

In addition, a first unit 1 is provided at both ends of the front of the copying machine main body 1.
Locking devices 26 and 26 are provided for fixing a to the second unit 1b side against the push-up blades of the supporting devices 21.... These locking devices ff126.26 are connected to a hook 27 and a second
The bin 28 is configured to protrude from the unit 1b side.

Therefore, normally, as shown in FIG.
a is ensured to be in a polymerized state in the second unit 1b, and used in this state. And manuscript table 2
The normal copying process is started by setting the original on the photosensitive drum 3 and pressing the copy button (not shown).
A developer image corresponding to the original is formed on the surface of the document. on the other hand,
A transfer paper P is supplied from the paper feed cassette 10 in synchronization with this developer image forming operation, and the transfer paper P is superimposed on the developer image in the transfer section 12. Here, the developer image is transferred by the action of the transfer device 7. t'1ltP. The transfer paper P to which this developer image has been transferred is peeled off from the photosensitive drum 3 by the action of the peeling device 8 and transferred to the fixing device @13 side.
After the developer image is fixed in the fixing device t13, it is discharged to the copy receiver 14. On the other hand, the transfer section 12
The surface of the photoreceptor drum 3 that has passed through is cleaned by the cleaning agent 181129 and returns to the initial position.

In addition, in the event that the transfer paper P gets jammed in the paper transport path 15 for some reason, the hooks 27 and 27 of the locking devices 26 and 26 provided at both ends of the front of the copying machine main body 1
is removed from the bins 28, 28, and as shown in FIG. to remove the jammed transfer paper P.

After removing the jammed transfer paper P in this way,
The unit 1a is pushed down and locked against the pushing up force of the support device 21 ii! 126.26 hook 27.27
By engaging the bottle 28.28, it becomes ready for copying as shown in FIG.

In this way, the upper first unit 1a can be displaced in the direction toward and away from the lower second unit 1b while remaining parallel to the lower second unit 1b without being tilted. The device 6 and the cleaning device 1f19 are not tilted, and the developer a stored or collected therein is not tilted.
This prevents the air from being lopsided, impairing normal operation, or leaking outside, contaminating the interior of the aircraft.

In the above-mentioned embodiment, a plurality of supports @21... are employed as the unit opening/closing holding structure 30, and the first unit 1a is movable up and down with respect to the second unit 1b and connected in the vertical direction. Although the configuration is such that the first unit 1a and the second unit 1b can be separated, the present invention is not limited to this, for example, as shown in FIG.
They may be connected by t29.29 (only the front side is shown) so that inoculation can be carried out while rotating the first unit 1a. The point is, of course, that any configuration may be used as long as the first unit 1a can be separated from the second unit 1b or overlapped with each other while maintaining a parallel state without being tilted.

In addition, 31.31 shown in FIG. 4 is a stopper that restricts the rotation of the link 32.32 constituting the parallel link 1 structure 29, and the position where the link 32.32 abuts on this stopper 31.31 (the solid line position ), the first unit 1a will remain in this state even if you release your hand. In addition, it goes without saying that the present invention can be modified in various ways without departing from the gist thereof.

(Effects of the Invention) As explained above, the present invention makes it possible to separate the first unit from the second unit while maintaining the parallel state without tilting the first unit. The developing device and cleaning station installed in the machine do not tilt, and the developer stored or collected therein does not become uneven and impair normal operation, or leak to the outside and contaminate the inside of the machine. Further, the first unit can be separated from the second unit without moving the WtI stand provided on the top surface of the first unit in advance or installing a fixing device.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing a state in which one embodiment of the present invention can be copied; FIG. 2 is a schematic configuration diagram also showing a state in which the first unit is separated from the second unit; The figure is a partial sectional view of the main part of the same embodiment, and FIG. 4 is a schematic configuration diagram of another embodiment of the present invention. 1... Copying machine main body, 1a... First unit, 1b
...Second unit, 30...Unit opening/closing holding mechanism. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2

Claims (1)

[Claims] A copying machine body configured with a first unit and a second unit is provided with a unit opening/closing holding mechanism that allows the first unit to be separated from the second unit while maintaining a parallel state. An electronic copying machine characterized by: