JPS60228346A - Paper transport apparatus of copying machine - Google Patents

Abstract

PURPOSE:To improve of efficiency of copying operation by providing a turning mechanism for turning either a sheet copied at the time of outward-scanning a document or a sheet copied at the time of return-scanning a document to discharge sheets in the uniform direction from a copying machine. CONSTITUTION:A sheet 2' guided to a branch path 4 at a gate 6 is brought into contact with a stopper 12 projected in the branch path 4 and stopped. On detecting that the sheet is stopped, an electric current is applied to a solenoid 16 to project a pivot 13 into the branch path 4. The forward end of the pivot 13 presses the center of the sheet 2' on a base plate 4a, and simultaneously the stopper 12 is retreated by a solenoid 15, so that the sheet 2' is turned around the pivot 13 by a transport roll 14. When the sheet 2' is turned in a 180 deg. arc, the pivot 13 retreats from the branch path 4, so that the sheet 2' is fed out from the branch path 4 at the turned position by the transport roll 14 and discharged to a paper discharge tray. One 2' of the sheets 2, 2' carried in the opposite directions is turned in a 180 deg., so that both sheets are discharged in the uniform direction.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a paper conveying device for a copying machine that scans an original back and forth to make copies.

PRIOR TECHNOLOGY Conventionally, in a copying machine that scans an original back and forth to make a copy,
For the original that was copied during forward scanning and the original that was scanned for backward scanning,
The direction of the resulting copy is reversed as shown in Figure 3. For this reason, in the past, paper ejected from a copying machine was manually rotated.

It was necessary to align the paper in the same direction, resulting in poor work efficiency.

Purpose of the Invention The present invention has been made to improve the above-mentioned problems, and provides a copying machine in which a paper rotation mechanism is provided in the middle of the paper conveyance path so that the paper is ejected from the copying machine in the same direction. By providing a paper conveyance device for the machine, the trouble of aligning the paper after copying is eliminated.

Constituent Structure of the Invention A rotation mechanism is provided in the middle of the paper conveyance path to rotate one of the sheets copied during forward scanning and the paper copied during backward scanning by a predetermined angle, so that the copying machine can rotate the sheets in the same direction. A copying machine paper transport device designed to allow paper to be ejected.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the nine figures shown in FIG.

The fc copy rate sheet 2 obtained by scanning the original to be copied in the forward path, and the copied sheet 2' obtained during the backward scanning.
The paper transport path 10 is moved from the direction of the arrow to the main body 11110 in the state shown in AJ (i.e., the direction is reversed).
It is being transported towards. The main body 1 has two branch paths 3 and 4, and a conveyor roll 5 and a gate 6 are provided near the entrances of these branch paths 3 and 40.

Ge.

- The trolley has an almost triangular shape, and its wide side is supported by the bin 7, and when the copied paper 2 is carried in during forward scanning, the leading end closes the entrance gate of the branching path 40, and the above-mentioned The paper 2 is guided to a branch path 3. In addition, conveyor rolls 8 and 9 are provided in the middle of the branch path 3 and on the paper discharge side of the branch paths 3 and 4, and the paper 2 guided to the first branch path 3 is transported through the conveyance path 10 by these conveyor rolls 8 and 9. The paper is then ejected from the copying machine to a paper ejection tray (not shown) 2.

On the other hand, when the copied sheet 2' is carried in during the backward scan, the tip of the gate 6 is closed on the entrance side of the branch path 30, and the sheet 1 is guided toward the branch path 4 side. Also, branch road 4
A paper rotation mechanism 11 is provided in the middle of the paper 1 to rotate the paper 1 by 180 degrees. The rotation mechanism 11 includes a stopper 12 that can freely move into and out of the branch path 4 from a bottom plate 4α of the branch path 4, and a pivot provided on the top plate 4b so as to be located approximately at the center of the paper 2 stopped by the stopper 12. 13 and.

It consists of nine conveyor rolls 14 located at a distance from the pivot 13. The stopper 12 is attached to a solenoid 15 provided below the bottom plate 4α, and is moved into and out of the branch path 4 by this solenoid 15. Further, the pivot 13 is attached to a solenoid 16 mounted downward on the top plate 4b, and when the paper 2' rotates, the pivot 13 projects into the branching path 4 so that the tip thereof comes into contact with the center of the paper 2'. It is now possible to do so. Furthermore, the transport roll 14 is rotated in the direction of the arrow by a drive source (not shown), and the paper 2' is transported and rotated as follows.

Next, the rotation operation of the paper 20 will be described. The paper l guided into the branch path 4 by the gate 6 comes into contact with the stopper +2 projected into the first branch path 4 and stops. When the paper 2' stops, a detector (not shown) detects this and activates the solenoid 16.
In order to energize, the pivot 13 is projected into the branch path 4 by the solenoid 16, and the tip of the pivot 13 is brought into contact with the bottom plate 4.
It is pressed against the center of the paper 2' on α. At the same time, solenoid 1
5 causes the stopper 12 to be retracted, so that the paper 2' is rotated about the pivot 13 by the transport roll 14.

When paper 2' rotates 180#, pivot 13 moves to branch path 4.
In order to move in and out further, the paper 7 is sent out through the branch path 4 by the transport roll 14 at the rotated position, and is further discharged by the transport roll to the paper output tray via the transport path.

As a result, the paper sheets 2 and 2', which have been carried into the main body 1 with their orientation reversed as shown in Figure 4), are rotated 180 degrees so that the paper sheets 2 and 2' are turned as shown in Figure 4 (B). The paper is discharged from the main body 1 in the same direction.

Effects of the Invention As described in detail above, this invention provides a copying machine with a rotation mechanism that rotates one of the sheets copied during the forward scan of the document a and the sheet copied during the backward scan on the paper conveyance path. Since the paper is ejected in the same direction,
There is no need to manually align the images after copying, unlike in the past. This improves copying efficiency and eliminates problems such as binding a negative part in the opposite direction.

[Brief explanation of the drawing]

In FIG. 1, the direction of the paper copied by reciprocating scanning 2.2' is the paper, 10 is the paper conveyance path, and 11 is the rotation mechanism. Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Masaaki Yonehara Patent Attorney Tadashi Hamamoto Figure 1 Figure 21X1 Figure 2153 (A) 4th t”7y t.

Claims (1)

[Claims] In a copying machine that copies a document by scanning it back and forth, a sheet of paper 2 copied during the forward scan and a paper 2 copied during the return scan are placed in the middle of the paper transport path 10 that discharges the copy obtained by the reciprocation scan to a paper output tray. A paper conveyance device for a copying machine, which is provided with a rotation mechanism +1 for rotating one side of the paper 2' by a predetermined angle.