JPS58184960A - Image forming device - Google Patents

Abstract

PURPOSE:To prevent the failure of a guide plate for sheet material mounted on a lower housing side or the like in the stage of closing the upper housing in an image forming device wherein a body is opened and closed to the upper housing and a lower housing around a supporting shaft by providing a detaining member with which one or both of the guide plate or a paper discharge tray detains on the outer side in the opening and closing locus of the upper housing. CONSTITUTION:A discharge tray 13 is in a position (a) in proximity to the upper housing wall of a body while not in use, and is moved from the position (a) to the position (b) where the tray receives transfer paper P when the copying machine is to be used. An upper housing 16 draws the locus of an arc (c) during opening or closing. The tray 13 is detained by a stopper 19 so as to stop always in the position (a) on the outside of the arc (c) and not to enter the inside thereof. Thus, the tray 13 is kept apart from contact with the housing 16 during opening or closing of the upper housing. The stopper 19 is provided on the lower housing 17 side or the tray 13 side.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention has a configuration in which an LTH image upper case and a lower case of a copying machine, a factoring apparatus, etc. can be opened and closed by themselves around one axis.1. Furthermore, a guide plate for guiding the sheet material is provided.The sheet discharge tray on which the processed sheet material is stacked is foldable in one direction relative to the main body.

In a device having the above mechanism, when the upper housing is opened, if the tip of the guide plate discharge tray enters the upper housing 11K during the opening/closing trajectory of the upper housing, this guide plate etc. will be damaged.

An object of the present invention is to solve the above-mentioned problems, and to make it easy to fold the β-id plate or the discharge tray into the wall of the main body case, and to make it easy to fold the β-id plate or the discharge tray into the wall of the main body case, and DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below by taking an electrophotographic copying apparatus as an example.

FIG. 1 shows a sectional view of a copying apparatus to which the present invention is applied.
~ gg1 In the figure, 1 is an original plate made of transparent glass, which moves back and forth in the direction of the arrow.02 is a coupling element of a convergent light transmitter, which exposes Yaken Hara on the original plate 1 onto the photosensitive drum 6 through slit exposure. 0 This photosensitive V5 3 rotates in the direction of the arrow,
Uniform charging is performed by the corona f'#L device 4. 5 is a developing device, which converts the electrostatic charge formed on the photosensitive drum into 1/j
Convert into 4 images.

On the other hand, 14'P"ft@l!c a -'56., k
U v ) 2 / - The drum 60 is sent to the transfer position by the roller 7 , and the toner on the drum is transferred by the transfer charger 8 . This transfer paper is separated by a separating means 9
Electricity is distributed from the drum and sent to the fixing device 11 through the conveyance guide 10. In the fixing device 11, the toner image on the transfer paper is fixed, and the transfer paper is further discharged onto the discharge tray 13 by the discharge roller 12. Note that the toner remaining on the photosensitive drum 6 is removed and collected by the cleaning device 14. Is 15 in the figure a lighting rung that exposes the original? show.

FIG. 2 is a sectional view of the main body when the upper casing is opened. The main unit is divided into an upper housing 16 and a lower housing 17 as shown in the figure, and both the housings are connected to each other by a support @ 18 so that the upper housing 16 can rotate. 16
The upper housing 16 has an imaging son 2. Photosensitive Dohum 6゜Gen 4a
Vessel 5. An image forming means such as a cleaning device 14 is arranged. . On the other hand, the lower S housing 17 includes a paper feed roller 6, a transfer band device 822, a transfer guide 9J, and a feed guide 10. A paper conveying means for the fixing unit 11 is arranged.

When the ejection tray 16 is not in use, it is at a position close to the wall of the upper S casing of the main body, and when the copying apparatus is used, it is at a position tb at which it receives the transfer paper P from t. The upper housing 16 draws a locus of an arc C when opening and closing.

By locking the discharge tray 15Fi with the stopper 19, which is a locking member, the output tray 15Fi is always placed at a position i1a outside the arc C.
When opening and closing, the ejection tray 16 does not even come into contact with the upper housing 1 and 6. Figure 3 shows an embodiment of the rule 2-, which is a measure against the ejection tray entering the circle of the above-mentioned arc ゛C-. A guide 20 is provided to guide the output tray 16. Kof
In addition to closing the upper housing 16 with L, the output tray 13
Even if there is a position [dK] on the circular side of the arc C, the discharge tray 16 is pushed by the kite 21 which is a pushing member and is pushed out to the outside of the arc C.

In the second embodiment, a guide 20 for pushing out the ejection tray is provided in the upper part of the body.Of course, the guide 20Fi and the ejection tray 13 may be provided separately.

According to the embodiment of the present invention described above, in the vertical opening/closing operation of the upper body donation, the discharge tray does not interfere with the opening/closing operation of the upper housing. Therefore, it is possible to prevent this discharge tray from suffering #L loss etc. due to the opening/closing operation of the upper casing.

By the way, in the above example, the problem with the ejection tray when opening and closing the upper housing was illustrated, but in addition to this ejection tray, there are
It is also effective for a guide plate for loading transfer paper P into the main unit one by one manually by an operator. Such a guide plate may be provided by replacing the transfer material P'fi: the cassette 20 containing the transfer material P'fi with a guide plate-like member. Note that in all cases where the present invention is applicable to such a transfer material guide, the support 1118 will be provided in the fixing device 1111 of the main body.

The configuration is the same as that of the discharge tray 16 described above. The present invention can be applied not only to Kawaguchi's discharge tray but also to the guide plate on the entrance side as described above.

[Brief explanation of the drawing]

Figure 1 is the main one! Cross-sectional view of the subject device that passes A, stripe 2
The figure is a sectional view when the upper housing of the copying machine is opened, showing the first embodiment, and FIG. 6 is a sectional view of the copying machine showing another embodiment.
Indicates the ward. In the figure, 16 is a discharge tray, 16 is an upper casing, and 17F'i is a lower casing. 18 indicates the support m, 19 indicates the stopper, and 21 indicates the guide. Board = scrap

Claims (2)

[Claims] (1) In an ms forming device whose main body opens and closes around a support shaft between an upper casing and a lower casing, one or both of the sheet material guide plate attached to the lower casing side and the paper ejection tray when in use. 81 position and a second position where it is folded closer to the main body housing. A ghost forming device is provided with a locking member that locks on the outside of the opening/closing trajectory on the tray side. (2) In the lj image forming device whose main body opens and closes the support shaft between the upper and lower casings with the ψ center, one or both of the sheet material guide plate or paper output tray attached to the lower casing side , the first position when in use and the second position folded close to the main body housing, and the position of the guide plate or paper output tray in this second position is when the upper housing is opened. When located inside the opening/closing track, the one-time forming device Q imitates the above-mentioned guide plate or paper ejection tray when closing the upper housing.