JPS6326063B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention reverses a double-sided recording sheet or a large-sized recording sheet carried out from an image recording device such as a copying machine, folds it in half, and compacts it into a sorter bin, for example. This invention relates to a reversing and folding device for storing recording sheets.

2. Description of the Related Art Conventionally, a reversing device that reverses a recording sheet carried out from an image recording device such as a copying machine midway through its conveyance path, and a folding device that folds the recording sheet in half are known. Conventionally, such reversing and folding have been performed separately.In other words, in the case of items that are folded, there is often no image recorded on the inside side when folded, so it is folded on the outside surface, and the folded side is folded on the outside. The switchback method was also used separately. Therefore,
Providing a reversing device and a folding device in this way on the conveyance path of one image recording device would complicate the mechanism.
Along with this, the cost also increases, and the device also becomes larger and requires a larger space.

SUMMARY OF THE INVENTION An object of the present invention is to improve such conventional drawbacks and provide a reversing and folding device that satisfies both the reversing and folding functions, has a simple mechanism, is inexpensive, small in cost, and has high reliability. It is something.

The reversing and folding device according to the present invention is provided with a reversing device for reversing the recording sheet on the conveyance path of the recording sheet carried out from the image recording device, and a member and a member for stopping the recording sheet in the middle of the reversing path in the reversing device. The apparatus is characterized in that it is provided with rollers that sandwich the recording sheet held by the member so as to fold it, so that it can perform both the functions of reversing and folding the recording sheet.

The present invention will be described in detail below with reference to embodiments shown in the drawings.

The illustrated embodiment uses an electrophotographic copying device capable of double-sided copying as an image recording device. In the figure, A is an electrophotographic copying device, B is a double-sided unit capable of double-sided copying, and C is a double-sided copying device. indicates a sorter that sorts and stores recording sheets. The copying apparatus A may be of a well-known type, and copies an image onto a recording sheet fed through a recording sheet inlet 1, and then carries out the copied recording sheet from an outlet 2. Double-sided unit B
The system includes a conveyance system 3 that transports the recording sheet taken out from the exit 2 to a tray or a sorter, and a conveyance system 3 that transports the recording sheet taken out from the exit 2 to a tray or sorter, and the recording sheet that is taken out from the exit 2 is reversed and fed into the copying machine again to perform double-sided recording. It has a double-sided recording system 4 for this purpose. At the recording sheet output port of the duplex unit B, there are disposed an ejection roller 5 that ejects the recording sheet onto a tray (not shown) arranged on the side of the duplex unit, and an ejection roller 6 that sends the recording sheet to a sorter. A deflector 7 is provided to switch this discharge.

The recording sheet carried out from the outlet 2 of the image recording apparatus A passes through the conveyance system 3 of the duplex unit B, is sent to the discharge roller 5 by the deflector 7, and is discharged onto a tray (not shown), or It is sent to a discharge roller 6, and thereby sent to a sorter C.
When double-sided recording is performed, the sheet recorded on the first side is again introduced into the image recording apparatus A through the double-sided recording system 4, recorded on the second side, and then passed through the above-mentioned conveyance system 3. transported.

The conveyance system 3 is composed of a large number of guides and conveyance rollers, and a reversing device 8 for reversing the recording sheet is provided in the middle thereof. This reversing device 8 consists of a switchback device, and the transfer system 3
a deflector 9, a switchback reversing path 10, a stopper 11 for stopping the recording sheet,
It is equipped with an air suction unit 12 and a delivery roller 13. In this reversing device, in order to fold the recording sheet in half, a member that stops the recording sheet in the middle of the switchback reversing path 10, that is, a baffle plate 14, and the recording sheet stopped by this baffle plate are folded. A roller 15 is provided to sandwich this. The stopper 11 and the baffle plate 14 are movable in order to process recording sheets of different sizes, such as A series or B series, for example.

Paper ejection roller 16 from an image recording device A such as a copying machine
The recording sheet discharged by is conveyed by a pair of conveying rollers and a guide, and enters a reversing path 10 of the reversing device by a deflector 9 to the reversing device, and in the case of normal reversing, the baffle plate 14 is moved to the position shown by 14a in the figure. When the paper is retracted, it hits the stopper 11, is sucked downward by the air suction unit 12, and is returned to the normal conveyance path by the feed roller 13.
The paper is sent along a guide by a delivery roller, and is delivered onto a tray or enters a sorter C to be sorted. When folding occurs, the recording sheet is placed on the baffle plate 14.
When stopped by the rollers 15, it is wound up by the rollers and folded by the rollers 15. This folding mechanism itself is a method that has been used since ancient times. When folding, this baffle plate must be moved when it is desired to perform a binding margin or a special fold, or when it is desired to fold recording sheets of different sizes, such as A series and B series.

As explained above, according to the present invention, it is possible to perform both the seemingly difficult tasks of reversing and folding with a simple change of installing a baffle plate in the middle of the reversing device and arranging the rollers that sandwich the folding device. effective.

[Brief explanation of the drawing]

The drawing is a sectional view showing an embodiment of the present invention. A...Electrophotographic copying device, B...Double-sided unit, C
...Sorter, 1...Inlet, 2...Export exit, 3...Transport system, 4...Double-sided recording system, 5...Ejection roller, 6...Ejection roller, 7...Deflector, 8...Reversing device, 9...Deflector, 10...Reversing Pass, 11...Stoppa, 1
2...Air suction unit, 13...Feeding roller,
14...Baffle plate, 15...Roller.

Claims (1)

[Claims] 1. A reversing device for reversing the recording sheet is provided on the conveyance path of the recording sheet carried out from the image recording device, and a member within the reversing device that stops the recording sheet midway through the reversing path, and a recording sheet stopped by the member. 1. A reversing and folding device for a recording sheet, characterized in that the recording sheet is reversed and folded by rollers that sandwich the recording sheet so as to fold the recording sheet.