JPH01236158A - Form storing device - Google Patents

Abstract

PURPOSE:To simplify structure by equipping with sending rollers provided with plural numbers along a paper sending passage, and with course changing over claws that can take selectively a first posture admitting progress on a form and a second posture making the form turn to a placing bed, on down stream side of said respective sending rollers. CONSTITUTION:A paper sending passage is formed with an up face and a down face guides 19, 20 provided on upper part of a middle tray 5. Change over claws 9a-9e and paper feeding rollers pairs 21a-21e are provided respectively on positions corresponding to various kinds of form sizes on the paper sending passage, and when forms in A-4 size are sent longitudinally, only the change over claw 9c in the middle is biased in clockwise. According thereto, a stopper 10c stands up, therefore the forms are placed on the middle tray 5 in arranged at the down stream side end portions. Next, forms 1 on the middle tray 5 are sent to a sending rollers pair 12, 12 by a paper feeding roller 11 and fed to a copying machine. Therefore, a side shifting mechanism is not needed, so structure becomes in simple.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a paper storage device that can be installed in a copying machine capable of double-sided copying and additional copying.

Conventional technology Conventionally, in automatic double-sided copying machines, etc., paper sheets with double-sided or multiple duplex copying or single-sided recorded paper are temporarily loaded and stored on an intermediate tray (mounting table), and then re-fed toward the image forming section. imaged on the desired surface.

For this reason, single-sided recorded paper passes through the standard section, then is fed backwards or forwards at the switch bank section, and is then transported and stored in the intermediate tray, or has a transport path for both duplex and multiplexing. , has a switching pawl in the conveyance path to either of the intermediate trays, and when multiple copies are made, the switching pawl allows the media to be discharged to the intermediate tray.

At this time, the width adjustment member is driven to move the paper according to the paper size.

i/i Problems to be Solved by the Invention In the conventional technology as described above, at least the upstream end of the paper is re-fed by adjusting the width of the paper on the paper table depending on the paper size. I needed to prepare it for shipping.

Therefore, the structure was complicated.

B.) Means for Solving the Problems The present invention provides a mounting table on which paper is placed, a paper feeding path extending in a direction parallel to the plane of this mounting table, and a plurality of paper feeding paths along the paper feeding path. A feeding roller that is provided, a first posture that is located downstream of each of the feeding rollers and that allows the sheet fed by the trowel to advance, and a first posture that allows the sheet to move forward when fed by the trowel; a path switching pawl that can selectively take a second attitude to change the path; and a paper feed roller located near the downstream end of the mounting table for feeding the stacked paper on the mounting table. This is a paper storage device equipped with.

(e) Function In the present invention, since a plurality of path switching claws are provided along the paper feeding path, paper of any size can be adjusted by appropriately rotating and biasing the path switching claws in accordance with the paper size. Even if they are, they can be placed on the mounting table with their upstream ends aligned.

(F) Embodiment The drawings all show one embodiment of the present invention, and FIG. 1 is a perspective view of each part pulled out to the outside, FIG. 2 is an internal configuration diagram corresponding to FIG. 1, and FIG. The figure is an internal configuration diagram in a state of use. Further, FIG. 4 is a diagram showing the configuration of main parts.

In these figures, (101) is a copying machine as an image forming device, and an automatic document feeder (102) is provided on the top surface of this copying machine (101), and an internal imaging optical system (10
3), photosensitive drum (104), developing device (105),
A pair of register rollers (106) (106), a transfer corotron (107), a pair of constant tension rollers (108×108) 8, and a pair of discharge rollers (109) (109) are provided, respectively, so that paper (1) is supplied to the copying machine (101) in the direction of arrow A shown in FIG. 3, and from the copying machine (101) in the direction of arrow B.

Paper ejection roller pair (109) (10) of the copying machine (101)
A paper feed port (2) is provided at a portion facing the paper feed port (21), and a paper feed roller pair +31F31 is provided on the downstream side of this paper feed port (21). On the side, there is a swinging switching claw (6) that switches between a path for ejecting the copied paper (1) onto the paper ejection tray (4) and a path for ejecting it onto the intermediate tray (5) serving as a loading table. It is equipped with free lζ.

As shown in FIGS. 1 and 2, the paper ejection section (8) is integrally provided so as to be able to swing leftward from its mounting position. This intermediate tray (5
) and a mutually parallel upper surface guide α9) and upper surface guide ω are provided, and a paper feeding path is formed by these two guides Q9). Switching claws (9a), (9b), (9c), (9d), and
)g and paper feed roller pair (21aX21b) (21c)(
21d) (21e), and when placing the largest paper (for example, A3 size paper) (1) on the intermediate tray (5), the switching claw (9a) on the most upstream side is When loading the smallest paper by tilting clockwise (for example, when horizontally feeding A4 size paper), use the switching claw on the farthest stream side (
Only the switching claw (9e) is radially offset in the clockwise direction and the other switching claw (9a) (
9b), (9c), and (9d) are biased counterclockwise. In addition, each switching claw (9a) of the lower guide ■
. . . and the feeding roller pair (21a) . . . are provided with a through hole through which the paper (1) can pass.

In addition, when placing paper (1) of a size between these, for example, when feeding A4 size paper vertically as shown in Figure 4, only the central switching claw (9c) is biased counterclockwise. is configured to do so.

On the intermediate tray (5), the various sizes of paper (
A stopper (10a) for positioning the upstream end of 1) (
1obX10cX1odX10e) can stand up and fall freely.
Lied. Each stopper (10a) is constructed to stand up in conjunction with each of the switching claws (9a).

Above the intermediate tray (5) on the downstream side, there is an intermediate tray (51).
When refeeding the upper paper (1) to the copying machine (101),
A paper feed roller 01) is provided. and,
On the downstream side of the paper feed roller (11), there is a feed roller pair uz for feeding the paper (1) to the copying machine (101).
(12) is provided.

Two pairs of so-called Accuride rail sides extending in a direction perpendicular to the refeeding direction are provided at the inner bottom of the device main body αJ, and the intermediate tray (5) is a movable part of this Accuride rail circle αΦ. Fixed on the side.

Therefore, the intermediate tray (5) serving as a paper refeeding section is provided so as to be movable in a direction perpendicular to the refeeding direction.

A paper feed portion ball is provided on the right side of the intermediate tray (5). This paper feeding section 05) includes a well-known paper feeding cassette 0.
6) is installed in a removable manner, and this paper cassette α
A paper feed roller (1η) is provided above the downstream side of the mark, and a pair of intermediate rollers (Q8) is provided above this paper feed roller 0η (
181 is provided.

The intermediate roller pair α8)Q8) not only feeds the unrecorded paper (1) fed from the paper feed section 09 to the copying machine (101), but also feeds the unrecorded paper (1) fed from the intermediate tray OJ again. The incoming recorded paper (1) is also fed to the copying machine (101).

Note that the intermediate roller pair as+ a8) and the paper feed roller force are configured to be integrally movable in the direction opposite to the feeding direction of the paper (1).

Therefore, if a jam occurs in each section (51+81 (15)), the jammed paper +11 can be easily removed by pulling out only the part where the paper jam has occurred.

(G) Effects of the Invention In the present invention, since a plurality of path switching pawls are provided along the paper feeding path, the path switching pawls are rotationally biased in accordance with the paper size. Even sheets of paper size can be placed on the loading table with their downstream edges aligned. Therefore, it is possible to accurately position and place various sheets of paper at a predetermined position without the need for a width adjustment mechanism. The structure is simple and inexpensive.

[Brief explanation of the drawing]

The drawings all show one embodiment of the present invention, and Fig. 1 is a perspective view with each part pulled out to the outside, Fig. 2 is an internal configuration diagram corresponding to Fig. 1, and Fig. 3 is a diagram showing the state in use. The internal configuration diagram, FIG. 4, is a diagram showing the main part configuration. (1)...Paper, (5)...Intermediate tray (mounting table)
, old)... Paper ejection section, (9a) (9b) (9c) (9d
) (9e) - Switching claw, (1 phrase... Accuride rail, (15)... Paper feed section, 0 &... Intermediate roller, α9
...Top guide, ■...F surface guide, (21a) (
21b) (21C) (21d) (21e) ... Feeding roller pair.

Claims (2)

[Claims] (1) A loading table on which paper is placed, a paper feeding path extending in a direction parallel to the plane of the loading table, and a plurality of feeding rollers provided along the feeding path; A first position located downstream of each feed roller allows the paper fed by the paper feed roller to move forward, and a second position allows the paper to change its path onto the loading table. A paper storage device comprising: a path switching pawl that can be used as a guide; and a paper feed roller located near the downstream end of the mounting table for feeding the laminated paper on the mounting table. (2) Claim 1, wherein the distance from the paper feed roller to each switching pawl is defined as a dimension corresponding to the length of various paper sizes.
Paper storage device as described.