JPH0597311A - Printing machine - Google Patents

Abstract

(57) [Abstract] [Purpose] Despite the built-in paper ejection tray, the printed paper in the paper ejection tray is pulled out from the main body of the printing machine to provide convenience in paper handling. [Arrangement] An auxiliary tray is provided in the discharge tray so as to be drawn out, and printed sheets can be taken out without pulling out the discharge tray.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a printing machine such as a copying machine or a facsimile printer, which is of a type having a discharge tray.

[0002]

2. Description of the Related Art A commonly known copying machine is a paper feed tray,
It is used by being attached to the main body of the copying machine in such a manner that the paper ejection tray pops out, but this type of tray takes up a large space, so a copying machine with a built-in tray as shown in Fig. 10 was developed. Has been done.

That is, in the copying machine A of FIG. 9, below the transfer processing section B in the main body of the apparatus, the discharge tray C is arranged in the upper stage, and the discharge tray C and sheets X1 and X2 of various sizes are provided. The stored paper feed trays D1 and D2 are built in so that they can be inserted and removed, and the paper feed trays D1 and D2 can be executed by copying.
The paper X1 or X2 selected from among the above is sent to the above-mentioned copy processing section B through the conveyance path E1, the paper X1 or X2 is copied by a well-known copying technique, and then the paper is fed into the discharge tray C through the conveyance path E2. Is configured to be sent to.

[0004]

However, the copying machine A shown in FIG. 10 has the discharge tray C and the paper feed trays D1 and D2 built-in, so that the main body of the apparatus can be made compact, but the copied paper can be used. In order to take out the paper, the paper discharge tray C has to be pulled out of the apparatus main body one by one, and it is troublesome to take out the paper, and since the completion of paper discharge is unknown, the paper discharge tray may be pulled out during paper discharge. There was a problem that caused a jam.

The present invention is to provide a printing machine which is convenient for handling paper by pulling out the printed paper in the paper ejection tray to the outside of the printing machine body even though the paper ejection tray has a built-in type. To aim.

[0006]

SUMMARY OF THE INVENTION The present invention is a printing machine in which a paper discharge tray for taking in printed paper is built in so that it can be inserted and removed, and a printer having an auxiliary tray that can be pulled out from the paper discharge tray. It is characterized by being.

[0007]

According to the present invention, the printed paper can be taken out of the printing machine by the auxiliary tray provided in the paper ejection tray while the paper ejection tray is built in the printing machine.

[0008]

As a result, the printed paper can be taken out without requiring the trouble of pulling out the paper discharge tray from the printing machine one by one, and the convenience is improved, and a jam occurs during the copying process due to the paper discharge tray being drawn out. Can be avoided.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. The drawings show a copying machine according to an embodiment of the present invention. As shown in FIG. 1, paper feed trays 2A and 2B loaded with papers of different sizes used for copying and a paper discharge tray 3 for taking in copied papers. Is stored in the lower front portion of the apparatus main body 1 so that it can be inserted and removed, and in this storage state, the paper is selectively pulled out from the paper feed tray and used for copying.
After that, it is configured to be sent to the paper discharge tray 3.

In this case, the upper surface of the apparatus main body 1 is used as the original setting table 4, and an original cover 5 for covering the originals (not shown) set on the original table 4 is provided, and at the same time, the apparatus main body 1 is provided with the original cover 5. A copy processing unit having a structure similar to that of FIG. 9 is provided.

As shown in FIG. 2, an auxiliary tray 6 is provided inside the paper discharge tray 3 described above. The auxiliary tray 6 is drawn into the paper discharge tray 3 in a solid line position and in a drawn chain line position. Only the auxiliary tray 6 can be pulled out to the front side of the apparatus body from the state where the sheet discharge tray 3 is housed in the apparatus body 1 as shown in FIG.

The above-mentioned paper discharge tray 3 is provided with a support shaft 7 penetrating the tray bottom plate 3a at one position on the inner back side, and rotating arms 8 and 9 are attached to the upper and lower ends of the support shaft 7. At the same time, an arcuate elongated hole 10 centered on the support shaft 7 is opened in the tray bottom plate 3a, and the other ends of the rotating arms 8 and 9 are connected by a connecting rod 11 which is inserted through the elongated hole 10. ..
The upper and lower rotating arms 8 and 9 are rotated by rotating a fan gear 12 attached to the support shaft 7 by a pinion 14 driven by a forward / reverse rotation motor 13. Further, a pushing spring 15 is attached to the lower rotating arm 9. The push-out spring 15 automatically pushes the auxiliary tray 6 from the stored position to the pulled-out position by the rotation of the arm 9, and therefore, as shown in FIGS. 2 and 3, the auxiliary tray 6 is attached to the tray bottom plate 3a. An opening 16 in the sliding direction is provided, and the opening 16 is formed in the auxiliary tray 6.
There is provided a protrusion 17 that projects downward through the auxiliary tray 6, and the push-out spring 15 presses the protrusion 17 to push out the auxiliary tray 6.

FIG. 4 is a control circuit diagram of the copying machine according to the present invention, in which the CPU 18 causes the copying machine to perform a copying operation according to a program stored in the ROM 19 and receives a signal from the copying end detecting means 20 at the end of copying. The forward / reverse rotation motor 13 is rotationally controlled to record the processing operation in the RAM 21.

The operation of the copying machine configured as described above is shown in FIG.
This will be described with reference to the flowchart in FIG. First step n
At 1, the CPU 18 determines whether or not the copying is completed based on the presence or absence of the output signal of the copy completion detecting means 20. During the copying operation, the copied paper X (shown in FIG. 3) is stored on the auxiliary tray 6 in the paper discharge tray 3 and with its tip abutting on the stopper 23 provided upright on the tray bottom plate 3a. To be done.

At the second step n2, when the copying is completed, the CP
U18 rotates the motor 13 in the forward direction to rotate the arms 8 and 9 and the pushing spring 15. As a result, in the third step n3, the pushing spring 15 causes the auxiliary tray 6 to project to the position indicated by the chain line in FIG. 1, and the connecting rod 11 connecting the upper and lower arms 8 and 9 causes the copied paper X in the paper discharge tray 3 to be transferred. Push out to the auxiliary tray 6 side. Then, in the fourth step n4 after pushing out the auxiliary tray 6 and the copied sheet X, the CPU 18 reverses the motor 13 to return the arms 8 and 9 and the pushing spring 15 to the original position, and the processing is finished. In this way, since the copied paper X is placed on the auxiliary tray 6 and pulled out from the paper discharge tray 3, there is no inconvenience of pulling out the paper discharge tray each time copying is completed.

6 and 7 show another embodiment of the copying machine according to the present invention, in which the paper discharge tray 25 is an auxiliary tray 26.
And the rack 2 is provided on the lower surface of the auxiliary tray 26.
7, 27 are mounted, and the pinions 28, 28 are meshed with the racks 27, 27, and the pinions 28, 28 are rotated by a forward / reverse rotation motor 29 provided on the lower surface of the tray bottom plate 25a. There is. Further, the tray bottom plate 26 is provided with a first switch 30 for detecting the push-out state of the auxiliary tray 26 and a second switch 31 for detecting the pull-in state, and the auxiliary tray 26 is also provided.
Switch 32 for detecting the copied sheets discharged inside
And a stopper 33 for positioning the copied paper fed into the paper discharge tray 25.

FIG. 8 shows a control circuit of a copying machine using the discharge tray 26 having the structure of FIG. 6, and the CPU 34 is a ROM 35.
The copying machine is operated in accordance with the program stored in the motor 2 and after the copying is completed, the paper detection switch 32 detects the copied paper in the discharge tray 25 and the motor 2
9 is operated to push the auxiliary tray 26 to a position where the tray detection first switch 30 is turned on, and in that state, the copied paper is taken out and the paper detection switch 32 is turned off.
When this is done, the motor 29 is rotated in the reverse direction, and the tray detection second switch 31 is pulled to the original position where it is turned on, and the copy processing operation including this operation is recorded in the RAM 36.

The operation of the copying machine using the above-mentioned paper discharge tray 26 of FIG. 6 will be described with reference to the flow chart of FIG. When the end of copying is detected in the first step n11, the CPU 34 determines the second step n12.
The motor 29 is rotated in the normal direction to push the auxiliary tray 26 out of the paper discharge tray 25.

When the tray detection first switch 30 is turned on in the third step n13 due to the completion of extrusion, the CPU
34 stops the rotation of the motor 29 in the fourth step n14 and holds the auxiliary tray 26 at the pushing position. Then, the copied paper on the auxiliary tray 26 is taken out, and the paper detection switch 32 is turned off in the fifth step n15.
When F, the motor 29 is rotated in the reverse direction in the sixth step n16 to take in the auxiliary tray 26, and when the take-in is completed, the tray detection second switch 3 in the seventh step n17.
When 1 is turned on, the motor 29 is stopped in the eighth step n18, and the process is ended.

Also in this embodiment, the copied paper can be taken out of the apparatus main body 1 by the auxiliary tray 26 without pulling out the paper discharge tray 25, and the convenience is improved.

In the correspondence between the present invention and the above-described one embodiment, the printed paper of the present invention corresponds to the copied paper X of the embodiment, but the present invention is limited to the configuration of the above-mentioned embodiment. Not something.

[Brief description of drawings]

FIG. 1 is an external perspective view of a copying machine according to an embodiment of the present invention.

FIG. 2 is a perspective view of a paper discharge tray used in the above embodiment of the present invention.

FIG. 3 is a plan view of a paper discharge tray used in the above embodiment of the present invention.

FIG. 4 is a control circuit diagram of the copying machine according to the embodiment of the present invention.

FIG. 5 is a flowchart showing a processing operation at the time of taking out a copied sheet in the copying machine according to the embodiment of the present invention.

FIG. 6 is a perspective view of a paper discharge tray used in a copying machine according to another embodiment of the present invention.

7 is an enlarged view taken along the line AA in FIG.

FIG. 8 is a control circuit diagram of a copying machine according to another embodiment of the present invention.

FIG. 9 is a flowchart showing a processing operation at the time of taking out copied paper in a copying machine according to another embodiment of the present invention.

FIG. 10 is a schematic configuration diagram of a conventional copying machine.

[Explanation of symbols]

 1 ... Device main body 3, 25 ... Paper discharge tray 6, 26 ... Auxiliary tray X ... Copier paper

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Tsuyoshi Kakinuma 46 Nogoshi, Okumachi, Ichinomiya-shi, Aichi Omron Ichinomiya Co., Ltd. Ichinomiya Co., Ltd.

Claims (1)

[Claims] Claim: What is claimed is: 1. A printer in which a paper discharge tray for taking in printed paper is built in so that it can be inserted and removed, and a printer equipped with an auxiliary tray that can be pulled out from the paper discharge tray.