JPH0441821B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION This invention relates to a copying machine provided with a paper reversing mechanism so as to intersect with a document discharge path.

2. Prior Art As shown in FIG. 1, an automatic document feeder b for automatically feeding a document to be copied onto a platen is mounted on the top of a copying machine body a, and an automatic document feeder b is mounted on the document ejection side of the copying machine body a. In a copying system equipped with a sorter c that collates documents that are successively ejected from a, it is necessary to make copies sequentially starting from the last page of the document, which makes it easy for operational errors to occur.
Since a space is required within the copying machine main body a and the sorter c to invert the sheets, there is a problem in that the copying machine main body a and the sorter c become large.

Purpose of the Invention The present invention was made for the purpose of improving the above-mentioned problems, and it provides a copying machine that is capable of reversing the paper without requiring a space for reversing the paper within the main body of the copying machine. The aim is to downsize machines and sorters.

Structure of the Invention By providing a paper reversing mechanism that protrudes the paper to be reversed into the air so as to intersect with the document ejection path near the paper discharge port of the copying machine main body, and reverses the front and back of the paper, a A copying machine that does not require space for reversing paper.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings shown in FIG. ing. Reference numeral 4 denotes an automatic document feeder provided on the platen 3, and is configured to feed the documents 2 placed on the document tray 5 onto the platen 3 one by one from the first page. The copying machine body 1 also includes an optical system that exposes the original 2 placed on the platen 3 and guides reflected light from the original 2 to the photoreceptor, and an electrostatic latent image formed on the surface of the photoreceptor. a developing device for developing the toner image, a transfer device for transferring the toner image developed by the developing device onto the paper 6, a fixing device for fixing the toner image transferred to the paper 6 (all not shown), etc. are installed in a predetermined arrangement, and the paper 6 on which the fixing has been completed is placed on the side of the copying machine main body 1 via the paper discharge path 7 and through the paper discharge port 1a provided on the side of the copying machine main body 1. They are fed into the sorter 13 and stored and deposited in, for example, the topmost bin 17 of the sorter 13.

On the other hand, a path switching guide 10 is provided in the middle of the paper ejection path 7, and when collation of the copy sheets 6 is selected, the sheets 6 transported through the paper transport path 7
The conveyance direction of the paper is switched to the opposite paper transfer path 11 side. The paper reverse transfer path 11 communicates with a paper discharge port 1b opened at a corner of the main body 1 of the copying machine.

Further, a paper reversing mechanism 14 is provided between the route switching guide 10 and the paper discharge port 1b. The paper reversing mechanism 14 includes a path switching guide 15 whose leading end faces toward the paper discharge port 1b, and a path switching guide 15 whose tip faces toward the paper discharge port 1b.
A reversing roll 16 located near the sheet 6 is used to reverse the front and back sides of the paper 6 as follows.

If you select collation of the sheets 6 during copying and start copying by manually feeding or feeding the original 2 from the first page onto the platen 3 using the automatic document feeder 4, the path provided in the paper ejection path 7 When the switching guides 10 and 15 are in the state shown in FIG. 4A,
A part of the paper 6 conveyed on the paper discharge path 7 is projected into the air from the paper discharge port 1b. At this time, the discharge path 18 of the document 2 and the paper 6 intersect.

Next, the path switching guide 15 of the paper reversing mechanism 14
At the same time that the leading edge of the sheet protrudes onto the paper ejection path 7, the reversing roll 16 reverses, and the paper 6 protruded into the air from the ejection port 1a is sent into the sorter 13 from the paper ejection port 1b via the path shown in FIG. 4B. and are sequentially collated into each bin 17 of the sorter 13. After that, the original 2 on the platen 3 is ejected to the paper ejection tray 19, so even if the paper 6 to be reversed intersects with the ejection path of the original 2, no problem will occur, and the paper 6 will not be placed inside the copying machine main body 1. No space is required for inversion.

While repeating the above operation, multiple sheets of original 2
are copied one after another, and the copied sheets 6 are transferred to the sorter 13.
are collated into each bin 17 within.

In the above embodiment, the paper 6 to be reversed was projected into the air at an angle of approximately 45° from the paper discharge port 1b.
As shown in FIG. 5, a paper discharge port 1b may be provided on the top surface of the copying machine main body 1, and the paper discharge port 1b may protrude from the paper discharge port 1b so as to be perpendicular to the discharge path of the original document 2. Further, in this case, a cover 20 made of soft synthetic resin or the like that can be opened and closed is provided on the paper outlet 1b.
It may also be possible to prevent foreign objects from falling into the copying machine main body 1.

Effects of the Invention As described in detail above, the present invention is configured to invert the paper by protruding it into the air so as to intersect with the document ejection path. A paper reversing mechanism can be configured compactly without requiring a space for reversing. This allows the copying machine main body and the sorter to be made smaller, and since the original can be copied from the first page, operational errors can be reduced.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a conventional copying machine, Fig. 2 is an overall view of a copying machine showing an embodiment of the present invention, Fig. 3 is a detailed view of the vicinity of the paper reversing mechanism, and Fig. 4 A and B show the operation. Explanatory diagram, FIG. 5 is an explanatory diagram showing another embodiment. 1 is the copying machine body, 2 is the original, 3 is the platen, 4
is an automatic document feeder, 6 is paper, 13 is a sorter,
14 is a paper reversing mechanism.

Claims (1)

[Claims] 1 In an apparatus in which the original 2 to be copied is fed onto the platen 3 of the copying machine main body 1 by the automatic document feeder 4, and the sheets 6 that are continuously discharged after copying are collated by the sorter 13, the above-mentioned This copying machine is provided with a paper reversing mechanism 14 near a paper discharge port 1a of a copying machine main body 1, which protrudes a sheet 6 to be reversed into the air so as to intersect the discharge path of a document 2, and reverses the front and back of the sheet 6.