JPS6048067A - Copying machine - Google Patents

Abstract

PURPOSE:To easily attach and detach a drum mechanism by supporting one-side terminals of an optical mechanism and a drum mechanism at both terminals of a base mechanism, and inserting the pin at the other-side terminal of the drum mechanism into the groove of an optical mechanism movably. CONSTITUTION:The optical mechanism 1 is freely rotatable through the support shaft 13 of the base mechanism 3, and the drum mechanism 2 is supported by short-shaft members 14 at both left side parts of the base mechanism 3 while its pin 15 is fitted in the groove 29 of a guide rail 16 on the reverse surface of the optical mechanism 1; when the respective mechanisms are in a closed state, the drum mechanism 2 has no-play constitution and held at a prescribed position. The optical mechanism 1 when unlocked rotates up by being energized by a spring 17, and the pin 15 moves easily to the wide-width part 292 of the groove 29 to close the respective mechanisms, so that the drum mechanism 2 is detached easily from the short-shaft member 14. Therefore, the respective mechanisms are opened easily according to the opening of the optical mechanism 1, and troublesome operation such as threadable engagement for the detachment of the drum mechanism 2 is not necessary.

Description

[Detailed description of the invention] The present invention relates to an electrophotographic copying machine.

'The conventional electrophotographic Enoki mushroom machine consists of a part that creates an optical image of the mushrooms that are to be grown as temporary mushrooms, and a part that creates an optical image of the four mushrooms that are to be used as temporary mushrooms. It consists of a part where a latent image is formed and developed with toner, and a part where the image on the seven drums is transferred and fixed onto the paper. Therefore, it is easy to operate and maintain. For reasons such as improving assembly efficiency, the copying machine is divided into three suspended modules, an engineering module, a drum module, and a base module, corresponding to the three parts mentioned above, and these modules are opened to each other as necessary. With easy access to each module, there is a crocodile-shaped copying machine,
Traditionally known as a machine.

However, in the past, in most cases, the optical module/bottom drum module were integrated and opened downward relative to the pace module.

In any case, with conventional devices, when removing or resetting the drum module, it is necessary to press the drum module one time, align the position, fix it, and lower it. Otherwise, it would be impossible to position accurately.

OBJECTS OF THE INVENTION The present invention improves the conventional device as described above, and allows the nomosule to be opened by simply rotating the optical module upward, and the drum module to be removed. The purpose is to provide a crocodile-shaped copying machine that eliminates the need for troublesome operations such as loosening, tightening, and tightening.

In order to achieve the objective of the structure of the invention, in the present invention a horizontal shaft member is struck at the end opposite the support point of the optical module on the base module, while the corresponding end of the drum module is The drum module Z is pivotably supported on the base module by engaging a notch portion with a lower opening at the crotch hole and the shaft member. In addition, a bottle is fixed horizontally to the other end 66 of the drum module, and a guide rail σ is provided on the bottle holding optical module.
Therefore, when the optical module S rotates around its fulcrum, the drum module engages the shaft member while moving the bin along the groove. Each module rotates as a pivot and there is an opening between each module. Furthermore, in order to facilitate the rotation of the ram module, the width of the groove is approximately equal to the diameter of the bottle at the portion that engages with the bottle when the optical module 71Δ is closed. The other parts are made larger than the diameter of the bottle.

Example An embodiment of the invention is shown in FIGS. 1 to 3.

Figure 1 in the middle of these drawings shows the copying machine in the closed state T, that is, in the operating state, and Figure 2 shows the slow copying machine in the open state. 3. Phrases that are roughly divided into Tsuri modules.

The optical module 1 houses optical devices 5 such as a lamp 4, a mirror 5 and a lens 6. A document is placed on the platen 20, and the λt1 lamp 4 scans the document from the L direction to the right while illuminating the document from below in a slit shape. The reflected light from the original document is successively reflected by mirrors 51, 52 and '53, passes through lens 6, and reaches mirror 54.

Then, the light is reflected by the mirror 54 2 it7': The light enters the drum module 2 (S), and the light enters the photoreceptor drum 70.
An optical image is formed on the surface.

Note that the lamp 4 and the mirror 51 move together, and the mirror 52 and the mirror 5. -1 and TL moved down at half the speed of ramp 4.

The inside of the drum module 2 is confused f K ) - Ram 7
% cleaner 8, developer 9, charger 21, etc. can be stored.
I'm here. 1 The light drum 7 rotates in the direction of the arrow, and on its surface charged by the charger 21, an electrostatic latent image is formed according to the optical image from the mirror 54, and this electrostatic latent image is developed with toner in the developing device 9. The image developed in this way is transferred to paper at a position below the rotation of the drum.The toner remaining on the photosensitive drum 7 is removed by a cleaner 8.The base module 3 has a paper feed power cent to , the fixing device 11 etc. are provided fL? According to the paper size, the appropriate paper feeder 10 is fed from the paper feeder 22 and the guide roller 23 to the photosensitive drum 7 by the paper feeding device, and then the paper is fed to the photoreceptor drum 7 using a tool as described above. Transfer is performed and I. Next, the paper is sent to the fixing device 11 by the conveyor U, and after a certain amount of paper is added, it is ejected onto the paper output tray 12.

As can be seen from the above, the optical module 1, drum module 2, and pace module 3 work together as a copying machine, so the positional relationship between these modules is extremely strict. It is.

For example, the incident TΦ element line from the mirror 54 of the optical module (2) into the drum module 2 must be imaged at a predetermined value W on the photoreceptor drum 7, and the ``fk'' transfer position must be 5
A precise positional relationship is maintained between the photosensitive drum 7 of the drum module 2 and the transfer corotron 5 and deta transfer corotron 26 installed in the paper or pace module 7 in the base module 3. There must be.

Therefore, in such a modularized Enoki', B-Iso, the important point is the reliable positioning of each module, especially the drum module 2 and the optical module 1.
Since the phrase is functionally connected to both the base module 3 and the base module 3, the positioning means are important. Conventionally, the optical module and drum module were made into a single piece with two separate openings. clause.

Hereinafter, the optical module 1 will be explained with reference to the embodiments according to the present invention. It is rotatably attached. 27 is a balance weight, which supports the support shaft 13 by the weight of the optical module 1! The moment balance is balanced. The optical module 1 is always urged upward in a direction to open its mouth Z by this balance weight 27 or by a combination of this 1t and another spring part 144, and there is a gap (not shown) between the optical module 1 and the base module 3. The locking mechanism will automatically open in the open position 5 and 7 as shown in Figure 2. C.

y1 on the opposite side of the base module 3 from the support @13
°id Shading Nawaji Kishigami 1 rule G station 141.142 is provided horizontally on the upper stroke 1 Nori tree S and the short axis S month 141.142. Short shaft portion U'14. ．． 14□ can also be used as a single shaft member.

On the other hand, in the frame portion 281 and 282 on the image side of the drum module 20, a semicircular notch is opened at the bottom, and this cutout is 1827%. Notch part 18 □, [82 Please attach the short axis UIS month'+4. ．． By fitting the JT171 into the base module 3 of the drum module 20, a downward pivoting fulcrum is created.

The short shaft portion U' 142 is provided with a T-shaped groove 19 having a width approximately equal to the thickness of the frame 282 of the drum module, and the frame 282 is fitted into this groove. As a result, the movement of the drum module 2 in the lateral direction, that is, the direction of the short shaft portion 214 is also restricted.

Bins 15 are installed horizontally above both of the discharge paper 1 and Hirohata juice 1≦ of the drum module 2, and the protruding bin 15 and the associated aT guide rail are installed on the lower surface of the optical module 1. ■It is a phrase with 6 in it. A groove 29 is formed in the guide rail 16, and the bottle 15 is fitted into the groove 29 so as to be movable along the groove 29. As shown in FIGS. 1 and 2, the groove 29 consists of a narrow part 291 at the innermost part and a relatively wide part 29□ in the innermost part, and a narrow part 29.
The width of the bottle is approximately the same as the diameter of the bottle 1'5. When each module is in the closed state as shown in Fig. 1, the Pino J5 is located at the narrow part 29°, and when it is in the open state as shown in Fig. 2, it is located in the wide part 29□. clause.

A spring member 17 such as a leaf spring is provided below the end of the optical module (2) on the a side. This spring part side 17 is
When each module is in the closed state as shown in FIG. 1 and the optical module 1 is locked so as not to open upward, the drum module 20 base module 3
The upper surface near the fulcrum point is pressed downward to restrict the vertical movement of the drum module ρ・2. At this time, the end of the drum module 2 on the paper discharge side fits into the groove part 291 of "1", which is almost the same diameter as the diameter of the bin 15, so that the vertical direction is regulated. .

In this way, when the drum module 2 of this embodiment is in the closed position and the drum module 2 is in the closed state, the drum module 2 is restricted from moving forward, backward, left and right, and up and down, ensuring that it remains in the specified position. Maintain it.

To put this copying machine in the open state, it is sufficient to simply unlock the constant-photo optical module 1. Since the optical module 1 is biased upward as described above, it rotates upward by itself around the support 1 1113 to open the opening T, without requiring any external force 1.

When this occurs, the guide tray is placed in bin J5 of drum module 2.
An upward force is applied through the groove 16'Y, and the drum module 2 rotates clockwise in the figure as indicated by the short shaft member 147, and the bottle 15 moves down to the wide part 292 of the groove 29, so that the movement is small. Become smoother. In this way, each module can be easily opened T7I between each module.

Also, when opening, the spring member 17 separates from the furnace drum module 2, and the notch GL (18 is upward) becomes 1 NO. By pulling out the bin 15 w H29, you can easily remove the drum module 2 from the main body. Let's loosen the tension on this λt.
There is no need for any complicated operations.

To attach the drum module 2 to the mounting point a, only the operations 7 and 5 in reverse to the above are required, and operations such as tightening the screws, tightening the screws, adjusting the position, and fixing 76 are not necessary.

In addition, in the embodiment shown in the figure, the optical module support @ 13
'The pivot shaft 147 of the drum module is provided in the paper discharge side of the Y base module and the paper feed side of the base module, but this may be reversed. Ding Nawaji Shire @13
The pivot shaft 14 may also be provided on the paper delivery tray.

From the above effects of the invention, the present invention has the advantage that each module automatically enters the open state as the optical module opens, and each module is connected using a screw or the like. It does not require any troublesome operations.

Therefore, even when removing the drum module 7 and resetting it, there is no need to twist screws or align and fix the drum module. Completed.

Moreover, the positional relationship between each module in the closed state is maintained extremely strictly.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a longitudinal cross-sectional view of the Enoki mushroom machine in the closed state, FIG. 2 is a longitudinal cross-sectional view of the Enoki mushroom machine in the open state, and FIG. 3 is a drum module and a base module. It is a perspective view showing the support mechanism 7 between. 1... Optical module, 2... Drum module,
3... Pace module, 4... Lamp, 5...
Mirror, 6...Lens, 7...Photoconductor drum, 8゛Cleaner, 9...Developer, lυ...Paper feeding power center, 11...Fixing device, 12...Paper output tray , 13・
...Optical module support 1M axis, 14...Short axis part, 1
5...Bin, 16...Guide rail,! 7... Haneto system, 18... Notch, 19... Groove, 20°°
゛Platen, 21... Charger, 22... Guide member,
23...Guide roller, 24...Co/Bed-25.
・・Transfer corotron, 26°°゛tetasotafrotron,
27...Rose/Thwaite, 28°゛・Drum module frame, 29...Guide rail σ groove 0 Agent Patent attorney Ehara Nozomi 1 person

Claims (1)

[Claims] The optical module is composed of an optical module including an optical device, a drum module including a photoreceptor drum, a developing device, and a cleaner, and a base module including a paper feeding device and a fixing device, and the optical module rotates upward about its one fulcrum. (Due to the force between each of the modules), the optical module is rotatably supported at one end of the base module, and the optical module is rotatably supported at one end of the base module. 1l horizontal at the other end
This end corresponds to the T section of the drum module, along with a cut-out opening from the lower section of the end section that engages with the end of the drum module. A bottle is fixed horizontally at the end, and this bottle is provided in the optical module and is moved along the groove to engage the guide rail 5, and when the groove is wide, the optical When the module knife S is closed, the diameter of the stone part is almost equal to the diameter of the bottle, and the other part is larger than the diameter of the bottle.