JPH04308151A - Recording paper storage device - Google Patents

Abstract

PURPOSE:To prevent the recording paper from being largely curled so that it can not be discharged and stack the curled paper on a discharging tray in a facsimile using the roll-shaped thermosensitive paper. CONSTITUTION:In a facsimile 1, the roll-shaped recording paper stored in a roll paper storage section 5 is extracted, an action to generate the recording paper Pr is performed via a thermal head 6, and the roll-shaped recording paper is cut with a cutter 8 to generate the recording paper Pr. A discharging tray 15 storing the recording paper Pr is inclined upward by the angle theta, and the length of the discharging tray 15 is set to a half or above of the recording paper Pr with the maximum size which can be generated in the facsimile 1. A preset interval d1 is provided between the protruded side end section of a document tray 10 and the discharging tray 10. When the recording paper Pr is curled, it is discharged while a curl is pressed.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a recording paper storage device in a recording device such as a facsimile machine, and in particular, it is possible to simplify the mechanism of the recording paper ejecting section without providing a curl correction means for the recording paper. In addition, when writing on a roll of recording paper with a thermal head to create recording paper, curling at the small diameter part of the roll of recording paper may cause
The present invention relates to a device that can prevent the storage capacity of recording paper stored in an ejection tray from decreasing.

0002

[Prior Art] A recording paper producing device such as a facsimile machine that uses a roll of recording paper is configured to create recording paper by writing an image on a roll of thermal paper using a thermal head. has been done. In the above-mentioned facsimiles, the diameter of the roll of recording paper becomes smaller as it is used, so the recording paper is output to the output tray in a strongly curled state due to the curling of the small diameter part of the roll of recording paper. There is a problem of being exposed. For example, as shown in FIG. 12, in a general facsimile 1, a roll of recording paper P stored in a roll paper storage section 5 is pressed against a thermal head 6 by a press roller 7. A thermal head 6 performs a printing operation based on the received signal, and a cutter 8 cuts the recording paper and stores it in a discharge tray 15. Further, originals to be transmitted by facsimile are stacked on the original tray 10, and sent to a reading device (not shown) using a document feeder, and a signal of an image read by the reading device is transmitted. .

In the above-mentioned facsimile machine, as long as the diameter of the rolled recording paper P is large, the curling of the rolled recording paper does not have a large effect, so the recording paper does not reach the output tray 15 normally. Deposited. However, as the roll of recording paper approaches the end, the influence of curling of the paper becomes greater, so that the recording paper discharged to the discharge tray 15 may be discharged as curled paper Pc.
A problem occurs when handling the curled paper Pc. Furthermore, if the recording paper discharged to the output tray remains curled, the number of recording papers that can be accommodated in the output tray will decrease, and it will be difficult to organize the received recording paper.

[0004] In order to solve the above-mentioned problem of curled paper, for example, as shown in Japanese Patent Laid-Open No. 16969/1982 and No. 171756 of 1983, it is necessary to It has been proposed to provide means for removing curls at arbitrary positions. In the conventional example, a curl removal means is arranged in the paper path of the paper fed out from the roll of recording paper, and the curl removal means is placed in the paper path before printing or after printing. I am trying to add the effect of removing the file. Among the conventional examples, JP-A-62
In the example shown in Publication No. 16969, the roller devices arranged in the paper path are arranged in different steps, and two rollers bend the curled paper in the direction to correct the curl. A method is used to add an effect that causes In addition, in another conventional example shown in Japanese Patent Application Laid-Open No. 63-171756, etc., the guide plate of the paper path is arranged in a V-shaped curve, and the paper path is passed through the curved part. , paper car
A method is used to remove the problem.

[0005]

[Problems to be Solved by the Invention] However, when using the above-mentioned curl removing means, the number of constituent members increases, and the incorporation of such a mechanism increases the size of the device. There is also the problem that manufacturing costs are greatly affected. Therefore, there is a problem in that it cannot be easily applied to devices such as small facsimile machines. Additionally, since facsimile machines that generally use roll-shaped thermal paper are small devices, they are
Space for accommodating other mechanisms is also limited, and in many cases it is not possible to incorporate extra components.

Therefore, in order to solve the above-mentioned problems, as shown in, for example, Japanese Utility Model Application Publication No. 59-162551 and Japanese Utility Model Application Publication No. 1-132646, recording paper is attached to the output tray. Place the member to be pressed,
It has been proposed to prevent the influence of curl by pressing the recording paper with a pressing member. In the conventional example shown in Japanese Utility Model Application Publication No. 1-132646,
An arm member having a roller at its tip is disposed above the discharge tray, and the arm member is configured to apply a pressing action to the curled paper. Also, Utsukai Showa 59-16
Publication No. 2551 discloses that when the paper is fed out from a roll of recording paper, the paper is guided through a press roller to greatly curve the paper in the direction opposite to the winding direction of the roll of recording paper. In addition to adding the function of removing paper, a pressing piece is arranged on the ejection tray, and means is used to improve the ability to accommodate sheets ejected to the ejection tray.

However, as described above, arranging the pressing member relative to the ejection tray causes these members to protrude significantly outside the ejection tray, which is not desirable in terms of appearance. In addition, since the pressing member comes into direct contact with the recording paper, if the paper is used in a high temperature or high humidity environment, or if the paper is not stiff, the paper may pass through the pressing member. It may not be possible to do so and may buckle. Furthermore, in order to reduce the manufacturing cost of facsimile machines, devices that do not include ejecting rollers may lack sufficient force to feed the recording paper, which may cause jams to occur at the ejecting section.

[0008]

OBJECTS OF THE INVENTION The present invention solves the above-mentioned drawbacks of the conventional apparatus.The present invention is aimed at solving the above-mentioned drawbacks of the conventional apparatus. It is an object of the present invention to provide a device which is movably mounted and which can improve the accommodating capacity of an output tray with simple structural members by ejecting recording paper while pressing the curl with a member disposed above. It is said that

[0009]

[Means and operations for solving the problems] The present invention is configured such that a roll of recording paper is stored in a roll paper storage section, and the cut recording paper is ejected using a cutter toward an ejection tray. The present invention relates to an image forming apparatus such as a facsimile. In the present invention, the length of the output tray is set to 1/2 or more of the maximum length of the recording paper, and a swingable spacing member is disposed above the output tray to maintain the gap between the output tray and the output tray. The distance between the discharge tray and the discharge tray is set within a range that can suppress the curling of curled paper, and the discharge tray is arranged so as to be inclined upward. Further, when a document tray is used as a member disposed above the output tray of the present invention, the document tray is provided so as to be swingable via a hinge section, so that the document tray is pushed up by the curl of the paper. It can be configured to resist the effects.

With the configuration described above, in the recording paper storage device of the present invention, even when a roll of small diameter recording paper is used, the curl of the roll of recording paper can be prevented from reaching the output tray. It is possible to prevent the storage capacity of the recording paper from being affected, and it is possible to prevent the recording paper from being ejected in a curled state and from causing a paper jam. Further, since the ejection device of the present invention does not use other attached members such as a pressing member, the structure of the device can be simplified, the device cost can be reduced, and the operability can be improved. can.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A recording paper accommodating apparatus of the present invention will be explained according to an illustrated example. In the facsimile 1 of the present invention shown in FIG. 1, a press roller 7 presses a roll of recording paper P stored in a roll paper storage section 5 against a thermal head 6, as in the case of a conventional facsimile. In this state, the thermal head 6 performs a printing operation based on the received signal, and the recording paper is cut by the cutter 8 and stored in the discharge tray 15. Further, the document D to be transmitted by facsimile is stacked on the document tray 10, is sent to a reading device (not shown) using a document feeder, and a signal of an image read by the reading device is transmitted. are doing.

The original tray 10 is swingably attached to the frame 2 via a support shaft 3, and the protruding end of the original tray 10 meets the upper part of the output tray 15. A predetermined interval is maintained between them. In the facsimile 1 of this embodiment, the roll paper storage section 5
By rotating the paper P stored in the clockwise direction,
The paper is pulled out from the top of the paper roll, and the paper is sent toward the recording section.

In the facsimile 1 of this embodiment configured as described above, as shown in FIG. 2, the ejection tray 15 is arranged at an angle θ with respect to the horizontal line.
By arranging the original tray 10 at a slightly small angle (θ−α) with respect to the output tray 15, the original tray 10
There is a gap d between the tip of the protruding side and the discharge tray 15.
I am trying to have 1. However, if the gap d1 can be secured, there is no problem with the document running, and there is no restriction on the device size, there is no need to intentionally reduce the size by α. In addition, the length of the document tray 10 is L, the distance between the support shaft and the center of gravity of the document tray is L1, the weight of the document tray is mg, and the curled paper Pr is attached to the document tray 10.
If the force by which 0 is lifted is f, then L1・mgcos
When (θ−α)<L·f, the document tray is swung upward by the curled paper, and the distance d1 becomes larger. However, if the diameter of the roll of recording paper is large, or if only a small number of recording papers are stacked on the output tray, the lifting force of the curled paper does not exert much force and presses against the bottom of the document tray. The recording paper is ejected in this state and is deposited on the ejection tray 15.

In the relationship between the document tray 10 and the output tray 15, when the diameter of the roll of recording paper becomes very small and it approaches the end of the paper, the curl pitch of the paper becomes very small. This curl causes a strong force to push up the edge of the document tray 10. In other words, as shown in FIG. 3, when the diameter φ of the curl of the paper becomes smaller and the effect of the curl is large and acts on the document tray 10, the tip of the document tray 10 and the output tray 15 When the interval d2 becomes φ=d2, the recording paper Pr is discharged in a curled state.

Therefore, in order to prevent the above-mentioned problem from occurring, in the present invention, as shown in FIG. 4, the length La of the ejection tray 15 is set to It is configured to be slightly longer than 1/2 of the maximum length Lb. Therefore, even when a long recording paper is ejected, less than half of the recording paper hangs down from the leading end of the ejection tray, so the recording paper does not fall from the ejection tray. However, if La is a variable length, the tray length La after the length change is the maximum recording paper length L.
It should be slightly longer than 1/2 of b. Furthermore, even if the pitch of the curl of the paper becomes very small and the curl exerts a strong force pushing up the edge of the document tray 10, the length of the recording paper guided to the output tray is relatively small. Because it is short, the curling effect has a large effect on document tray 1.
It no longer acts on 0.

Further, in the present invention, since the ejection tray is configured to be inclined upward, the paper is prevented from slipping off the ejection tray. In addition, as mentioned above, the leading edge of the paper stored in the output tray hangs down from the edge of the output tray, so it does not get in the way of the recording paper that will be stored next. , it is possible to maintain good storage capacity of recording paper. Note that the length La of the output tray is
If the length of the recording paper is less than half of the maximum length Lb, it will not be possible to stack and accommodate the maximum length of recording paper, causing problems such as the paper falling from the output tray due to the weight of the drooping part. It is conceivable that this may occur. In contrast, in the present invention, the length of the output tray is set in accordance with the maximum length of recording paper created in a facsimile machine, thereby preventing the recording paper from falling from the output tray. Become what you can.

Further, in the apparatus of the present invention constructed as described above, for example, when a large number of originals are piled up on the original tray and the weight of the original tray becomes very large, If the distance d1 shown in Figure 2 is not set, the problem is that the weight of the document tray overcomes the pushing up force caused by the curling of the recording paper and the paper is stopped, as shown in Figure 5. occurs. Furthermore, in a high temperature and high humidity environment, the paper becomes stiff, so there is a problem that the recording paper Pr gets caught on the tip of the document tray and buckles, resulting in a jam. Therefore,
In the present invention, as described above, by setting a constant distance d1 between the edge of the document tray and the output tray, the above problem can be prevented from occurring.

In the apparatus of the present invention, the provision of the document tray 10 in a swingable manner allows curled paper with a small pitch to pass through and prevents curled paper from jamming. can. Furthermore, as shown in FIG. 6, if the document tray 10 is configured to be able to be opened widely, even if paper jams occur on the output tray 15, it can be handled easily. Become,
Furthermore, it is convenient when taking out small-sized paper. As mentioned above, the document tray can be opened and closed;
In order to maintain a constant distance between the leading end of the document tray and the discharge tray, the document tray 10 can be configured as shown in FIG. 7 or 9, for example.

In the document tray 10 shown in FIG.
is provided so as to protrude. As shown in FIG. 8, when the document tray 10 is attached to the frame 2, the claw member 13 comes into contact with the lower part of the upper plate of the frame, and the document tray 10 is attached to the frame 2 as shown in FIG. This means that we can support such a relationship. Further, as shown in FIG. 9, the document tray 10 can also be formed with an engagement stepped portion 14 at the hinge portion 12. When the document tray 10 shown in FIG. 9 is attached to the frame 2, the locking step portion 14 is locked to the end of the upper plate of the frame 2, as shown in FIG. Therefore, it can be supported in the same manner as in the case of FIG. Therefore, in the document tray of the present invention, by supporting the hinge portion 12 with respect to the frame via the support shaft 3, the document tray can swingably support the curled paper, and
The document tray can be opened wide. Further, as long as there is no problem with document stacking, the support shaft 3 may be placed on the document tray as shown in FIG. 11.

In the facsimile of the present invention, conditions such as the length of the document tray are configured to correspond to the maximum size of documents that can be transmitted, as in the case of general devices, and the length of the document tray is The position of the protruding end of the document tray is not limited above. In addition, the inclination angle of the ejection tray can be set to about 30° as in the case of a normal facsimile machine, but the angle of the ejection tray is 0°.
The angle can be set within a range of 90° to 90°.

[0021]

[Effects of the Invention] Since the facsimile machine of the present invention uses the ejection tray and document tray configured as described above, no other attached member such as a pressing member etc. is used in the recording paper ejection section. Therefore, the configuration of the device can be simplified, the cost of the device can be reduced, and the operability can be improved. In addition, in the present invention, even when a roll of recording paper with a small diameter is used, the cartridge of the roll of recording paper is
It is possible to prevent the recording paper from affecting the storage capacity of the recording paper in the output tray, and to prevent the recording paper from being discharged in a curled state and from causing a paper jam. Therefore, in the facsimile of the present invention, the recording paper stored in the output tray is stored in good condition, so there is no problem in post-processing the recording paper, and the operation to remove jammed paper is easy. This means that it can be done.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the configuration of a facsimile according to the present invention.

2 is an explanatory diagram showing the relationship between each member of a document tray and an ejection tray in the facsimile shown in FIG. 1; FIG.

FIG. 3 is an explanatory diagram showing the movement of the document tray due to curled paper.

FIG. 4 is an explanatory diagram showing the relationship between the length of the ejection tray and the recording paper.

FIG. 5 is an explanatory diagram showing a case where the leading end of the document tray is provided close to the output tray.

FIG. 6 is an explanatory diagram of a case where the document tray is configured to be openable and closable.

FIG. 7 is a perspective view showing the configuration of the document tray of the present invention.

8 is an explanatory diagram of a state in which the document tray of FIG. 7 is attached; FIG.

FIG. 9 is a perspective view showing the structure of another embodiment of the document tray of the present invention.

10 is an explanatory diagram of a state in which the original tray of FIG. 8 is attached; FIG.

FIG. 11 is an explanatory diagram of another embodiment of the document tray of the present invention.

FIG. 12 is an explanatory diagram showing the configuration of a conventional facsimile.

[Explanation of symbols]

1 facsimile, 5 roll paper storage unit,
6 thermal head, 7 press roller,
8 Cutter, 10 Original tray, 12
Hinge part, 15 Ejection tray.

Claims (1)

[Claims] Claim 1: In an apparatus configured to store a roll of recording paper in a roll paper storage section and output the recording paper cut using a cutter toward an output tray, The length is set to 1/2 or more of the maximum length of the recording paper, and a swingable spacing member is arranged above the ejection tray, and the spacing between the ejection tray and the spacing member is set to A recording paper storage device characterized in that the ejection tray is set in a range that can suppress curling of the recording paper, and is provided so as to be inclined upward.