JPH0123820Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is designed to insert manual paper into the printing section during manual paper feeding from the paper guide of the paper feeding device in the printing device, especially the stacker section where printing paper is ejected and stored during automatic paper feeding. The present invention relates to a side guide for manual feed paper in a paper feeder.

An example of this type of paper feeding device is shown in FIG. 1, in which 1 is a platen, 2 is a printing head, 3 and 4 are guide rollers that rotate in contact with the platen 1, and a is a printing section. It is. 5 is the frame of the paper feeder, 6 and 7 are mounted on the frame 5 and the platen 1 is
The stacker rollers 8 and 9 are plate members fixed to the frame 5, and the plate member 8 holds a paper cassette (not shown) that is loaded into the paper feeder during automatic paper feeding, and also holds printing paper fed out from the cassette. The board 9 serves to guide the printing paper sent out from the printing section a toward the stacker rollers 6 and 7, and also guides the lower side of the ejected paper released from the stacker rollers 6 and 7. The function is to hold the parts in place. 1
0 is a stacker plate fixed to the frame 5, which acts to hold the back side of ejected paper during automatic paper feeding, and serves as a guide surface for manual paper during manual paper feeding. A slit c is formed between the stacker plate 10 and the plate material 9, and manual sheets are inserted into the paper feed port b through the slit c. 11 is the stacker board 10
Alternatively, it is a paper guide that is rotatable around a pin 12 set in the frame 5. During automatic paper feeding, it is held at the position shown by the solid line in the figure and serves as a press for the ejected paper stored in the stacker section d. During paper feeding, it is held at the position indicated by the imaginary line in the figure and serves to guide the leading edge of the manual feed paper to the slit c.
Reference numeral 13 denotes a guide plate fixed to the frame 5, which functions to guide discharged paper sent out from the stacker rollers 6 and 7 between the stacker plate 10 and the paper guide 11 during automatic paper feeding.

In the paper feeding device configured as described above, during automatic paper feeding, the printing paper is automatically sequentially supplied from the paper cassette loaded on the plate material 8 to the paper feeding port b, and is fed to the guide roller 3 and other guide devices (not shown). Then, it is wound around the platen 1, and after being printed in the printing section a, it is sent upward to the stacker roller 6,
7, and are sequentially discharged between the stacker plate 10 and the paper guide 11 and stored in a stacked state. During manual paper feeding, manual feed paper is inserted through slit c, and after being printed in the same manner as during automatic paper feeding, it is sent out to the front of the paper guide 11 (top left side in Figure 1) by stacker rollers 6 and 7. come. During this manual paper feeding, it is desirable to provide side guides 14 on the stacker plate 10 to guide the sides of the paper, since the sides of the manual paper must be aligned with the predetermined positions before insertion. If the paper is ejected out of position during automatic paper feeding, the paper may ride on the side guides 14 and a paper jam occurs, or the ejected paper may remain stuck on the side guides 14. This causes problems such as a decrease in stack capacity.

Conventionally, as shown in FIG. 2, a side guide 14a is detachably provided on the stacker plate 10, and the side guide 14a is removed during automatic paper feeding, or as shown in FIG. 14b
A structure has been adopted in which the side guide 14b is rotatably mounted and the side guide 14b is retracted to the side of the stacker plate 10 during automatic paper feeding. Here, the side guide 14a shown in FIG. The side guide 14a is made detachable from the stacker plate, and the side guide 14b shown in FIG. 3 is attached to the stacker plate 10 so as to be rotatable around a pin 17. By rotating it clockwise, it is retracted to the side of the stacker plate 10. In FIG. 3, 18 is a pin protruding from the back side of the stacker plate 10, 19 is a through hole provided in the stacker plate 10, and the side guide 14b is a bent portion 20 that protrudes from the through hole 19 to the back side of the stacker plate 10. A tension spring 21 is stretched between the bent portion 20 and the pin 18 to constitute a detent mechanism, and the side guide 14b is moved between the guide position shown in the third figure and the retracted position where it is rotated laterally. It is now possible to hold it with

However, such conventional side guides 14a,
14b requires a complicated operation to attach and detach or rotate it each time when converting between automatic paper feeding and manual paper feeding, and if the operator forgets to perform this operation, the above-mentioned troubles may occur. A problem arises in that this occurs.

This invention provides a side guide in which the side guide 14 attached to the stacker plate 10 has a unique structure so that ejected paper does not ride on the side guide during automatic paper feeding and paper jams do not occur. , the side guide 14 is attached to the stacker plate 10.
The device can be fixedly installed in the device, thereby solving the problems of the conventional structure as described above and making it possible to provide the device at a lower cost.

FIG. 4 shows an embodiment of the side guide of this invention, and the side guide 14c of this invention consists of a first piece 22 and a second piece fixedly provided on the side of the stacker plate 10. The first piece 22 consists of a guide surface 24 that is perpendicular to the stacker plate 10 and parallel to the paper running direction, and a top ridge 25 that is inclined so that the printing section side (lower side in FIG. 1) is lower. The second piece 23 protrudes higher than the first side 22 toward the opposite side of the first piece 22 (upper part in FIG. 1) and is sent out from the printing part a. It is characterized by having an inclined guide surface 26 that guides the side edge of the paper beyond the top edge 25 and toward the inside of the stacker plate 10 (to the right in FIG. 4).

If the side guide 14 is configured in this way,
Even if the ejected paper during automatic paper feeding deviates from the normal position and comes into contact with the side guide 14c, the paper will be guided to the top ridge 25 of the first side 22 and its tip corner will be placed in the second The ejected paper comes into contact with the guide surface 26 of the first piece 23, and the ejected paper is guided toward the inside of the stacker plate 10, and the side edge of the paper is moved inward from the first piece 22, so that the paper is always kept on this side. Since the sheets are ejected inward from the guide 14c and stacked, there is no risk of paper jams occurring or sheets being stacked on the side guides 14c. It can be fixedly provided on the stacker plate 10. During manual paper feeding, the side of the manual paper is guided by the guide surface 24 of the first piece 22, and in this case, the second piece 23 does not contact the paper directly, so the manual paper is There is no problem with the guiding action of the

As described above, according to this invention, it is possible to fixedly provide a paper guide to the stacker plate 10 for guiding the side edges of manual feed paper. There is no risk of a decrease in stack amount due to paper running over the paper guide, and there is no need to operate the paper guide when switching between automatic paper feeding and manual paper feeding, reducing the burden on the operator. By simplifying the structure of the paper guide, the device can be provided at low cost.

[Brief explanation of drawings]

Fig. 1 is a side view showing an example of a paper feeding device in which the paper guide of this invention is adopted, Figs. 2 and 3 are perspective views showing the structure of a conventional paper guide, and Fig. 4 is an example of a paper feeding device of this invention. It is a perspective view showing an example. In the figure, a is a printing section, b is a paper feed port, c is a slit, d is a stacker section, 1 is a platen, 2 is a print head, 6 and 7 are stacker rollers, 10 is a stacker plate, 11 is a paper guide, and 12 is a paper guide. 14 is a pin, 14 is a side guide, 14a and 14b are conventional side guides, 14c is a side guide of the present invention, 22 is a first piece, and 23 is a second piece.

Claims (1)

[Scope of utility model registration request] A side guide 14 for manual paper in a paper feeding device of the type that inserts manual paper from a stacker section d, where printing paper is ejected and stored during automatic paper feeding, into a printing section a during manual paper feeding. Consisting of a first piece 22 and a second piece 23 fixedly provided on the side of the stacker plate 10 that guides the surface, the first piece 22
has a guide surface 24 that is perpendicular to the stacker plate 10 and parallel to the paper running direction, and a top ridge 25 that is inclined so that the printed part a side is lower, and the second piece 23 is different from the first piece 22. It protrudes higher than the first piece 22 on the side opposite to the printing part and guides the side edge of the paper sent out from the printing part a beyond the top edge 25 of the first piece 22 to the inside of the stacker plate. A side guide for manual printing paper, characterized in that it has a guide surface 26 that is preferably inclined.