JPS61188354A - Recording device - Google Patents

Abstract

PURPOSE:To pull out a sheet which is even through biased, and to make it possible to simply and surely correct the bias of the sheet, by providing an one-way clutch in the drive system of a discharge roller. CONSTITUTION:An one-way clutch 11 is incorporated in a gear 8c in a train of gears 8a-8c for transmitting the power of a paper discharge drive motor 7 so that rotation may be transmitted to a paper discharge roller shaft 6a but the discharge roller shaft 6a is also rotated after the drive motor 7 is stopped. Accordingly, even if a recording sheet 2 is set with a slight shift from its normal position, the widthwise bias of the recording sheet may be corrected when the recording sheet is discharged to some degree by the drive means 7 and then the user grips the center of the leading end of the recording paper 2. In this case, due to the incorporation of the one-way clutch 11, the recording paper 2 is may be easily pulled out.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a recording device in an image forming apparatus such as a copying machine or a facsimile machine, and particularly relates to a continuous recording paper,
In a recording device that is configured to print image information on a sheet material such as a sheet (hereinafter referred to as recording paper) by a recording means, cut it to a predetermined length, and then eject it, the recording paper is This invention relates to a device that can easily correct the position of recording paper when it is set diagonally.

<Prior Art> In a conventional recording device having this type of printing means, cutting means, and paper ejecting means, when the leading edge of the recording paper is set diagonally with respect to the device when the recording paper is inserted into the device, However, since the recording paper is held in the ejection section, it is very difficult to correct the recording paper to the correct position.

That is, to briefly explain the conventional example using figures, FIG. 5 is a perspective view of the inside of a recording section showing the conventional example, and FIG. 6 is a schematic cross-sectional view of the recording section. A recording paper 2 fed from a take-up roll 1 is conveyed by a platen roller 3, and image information is printed on it by a recording lid 4. After printing is completed, the final printed end of the recording paper is conveyed by the platen roller to a cutter 5, cut by the cutter 5, and then discharged by a paper discharge roll 6. Next, 7 is a paper discharge roller drive motor, and 8a to 8C are gear trains for respectively transmitting the power of the motor 7 to the paper discharge roller shaft 6a. 9 is a platen roller drive motor, 1
Qa-e are gear trains for respectively transmitting the power of the platen roller drive motor 9 to the platen roller shaft 3a.

The recording paper 2 is used by the user (hereinafter referred to as the user) to
The platen roller drive motor 9. The paper discharge roller drive motor 7 is driven to discharge the recording paper 2 in the B direction.

At this time, since the recording paper 2 is set manually, the set position is often offset from the normal position (shown by the solid line) as shown in Figure 7, In this case (as shown by the two-dot chain line), there is a drawback that the image information to be printed on the recording paper is missing, or the recording paper is wrinkled and the image information is also missing.

In order to prevent the above image information from being missing, it is necessary to correct the deviation when the recording paper 2 is centered, but even if you try to correct the deviation in the width direction while pulling out the recording paper 2 in the direction B in the figure, it will not be possible to eject the paper. There is a drawback that the drive system motor 7° gears 9g8a-c act as a load, and the paper discharge roller 6 does not rotate, making it impossible to straighten the recording paper 2 in the width direction. In addition, some devices have a mechanism for releasing the pressing force of the ejection mechanism described above,
This has the drawback that the operation is complicated and the mechanism is complicated.

<Problems to be Solved by the Invention> The present invention fundamentally improves these conventional drawbacks. This makes it possible to easily and reliably correct the problem.

Means for Solving the Problems> One embodiment of the apparatus according to the present invention will be described below with reference to FIGS. 1 to 4. FIG. 1 is a perspective view showing a recording drive section of an apparatus according to the present invention, FIGS. 2 and 3 are side views of the main parts thereof, and FIG. 4 is an external view.

The explanations of the general components and their operations in Figs. 1 to 4 above are the same as those of Figs. 5 and 6, and are already publicly known technology, so they will be omitted. The specific structure and operation of the device of the present invention will be described in detail as follows.

That is, as mentioned above, FIG. 1 is a perspective view showing one embodiment of the present invention, in which 7 is a paper ejection drive motor, and 8a to 8C are for transmitting the power of the paper ejection drive motor 7 to the paper ejection roller 6. gear train,
11 is a one-way rotation means attached to the inside of the gear 8C, and a one-way clutch is used here. Reference numeral 6 denotes a paper discharge roller, 9 a platen roller drive motor for driving the platen roller 3, and 1Qa-e a gear train for transmitting the power of the motor 9 to the platen roller 3.

Therefore, in the apparatus of this embodiment, as described above, one-way clutch 11 is installed in one gear 8c of the gear train 8a-C for transmitting the power of the paper discharge drive motor 7, so that the drive While the rotation of the motor 7 can be transmitted to the paper ejection roller 6 via the gear train 8 aw c, the rotation of the paper ejection roller 6 can be controlled by using the one-way clutch 11 after the rotation of the drive motor 7 is stopped. 12.13 The other components can be made independent from the drive system and only the paper ejection roller 6 can be rotated.
．． 14 and 15 respectively place the recording paper 2 on the platen roller 3. This is a guide for guiding the cutter 5° to the discharge roller 6.
is a discharge roller that is pressed against the discharge roller 6. 17 more
1 is a tray for supplying the original 18, and 19 is a tray on which the read original 18 and the recording paper 2 cut by the cutter 5 can be discharged and stacked.

<Operation> Since the apparatus according to the present invention has the above-described structure, the recording paper 2 is inserted and inserted by a user (not shown) up to point A shown in FIG. As shown, even if the recording paper 2 is set with a slight deviation from the normal setting position (solid line) (the amount is generally about 2 to 3 cranes as shown by the two-dot chain line), the recording paper 2 is moved by a drive means (not shown). and its switch means to discharge to the state shown in Fig. 7,
Further, from this state, the user can grasp the central portion of the leading edge of the recording paper 2 and pull it out in the B direction, thereby correcting the deviation in the width direction of the recording paper 2. As the principle has already been explained in detail, in this case, the paper ejection roller 6 and the drive gear system $ a %
Since the one-way clutch 11 is interposed between the drive means 7.3a and C, the driving means 7.3a-c are not loaded when the recording paper 2 is pulled out, and therefore the recording paper 2 can be easily pulled out as shown in FIG. I can do it.

<Embodiment> Although the embodiment of the present invention has been described using a one-way rotation means (one-way clutch), the effect is the same whether a roller crunch, a spring clutch, an electromagnetic clutch, or the like is specifically used.

Further, it is also possible to implement a device in which a one-way clutch is provided in the platen roller section, or a device in which one-way clutches are interposed in both the paper ejection roller section and the platen roller section.

<Effects of the Invention> Since the device according to the present invention has the structure and operation as described above, even if the sheet material is not set in the correct position but is set unevenly, the device provided in the drive system of the ejection roller, for example, With the action of the one-way clutch, the sheet material can be pulled out while rotating the discharge roller, and its deviation can be easily and reliably corrected. This feature has the feature of being able to prevent image loss caused by wrinkles caused by printing.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the main parts of this embodiment, and FIGS.
The figure is an explanatory diagram thereof, and FIGS. 5 to 7 are explanatory diagrams showing conventional examples. 2 is the recording paper, 3 is the platen roller, 5 is the cutter, 6 is the discharge roller, 7.9 is the motor, 3 a % C is the gear, 1
1 is a clutch, 12 to 15 are guides, and 17.19 is a tray.

Claims (1)

[Claims] A recording device that includes a continuous sheet material, a recording head that can print image information on the sheet material, a cutting means that cuts the sheet material to a predetermined length after printing, and a discharge mechanism that discharges the cut sheet material after cutting. In the device, the connection between the ejection drive unit that drives the ejection mechanism and the ejection mechanism can be freely disconnected and disconnected by a clutch means, and the ejection drive unit is connected when the ejection mechanism is operated and the connection between the ejection drive unit and the ejection mechanism is connected when the ejection mechanism is not operated. A recording device characterized in that the ejection mechanism is rotatable when the ejection drive section is turned off.