JPS588678A - Paper feeding device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper feeding device C that can simultaneously supply and process cut sheets and continuous sheets of a predetermined size.

Figure 1 is a perspective view of the paper feeder showing a state in which cut paper cut to a certain size (hereinafter referred to as single sheet) and continuous paper (hereinafter referred to as 2 sheets) are set at the same time, and Figure 2 is a conventional paper feeder. FIG. 2 is a schematic side view illustrating the paper feeding device of FIG. In Figure 2, two pieces of paper (1) are locked in a tin rocket (2) and fed by rotating the sprocket (2), while a cut sheet (3) is fed by an operator using a cut sheet device (4). Insert it in the direction of a pair of rollers (5a) and (5b) provided in the platen (5b) so that it is inserted between the two (indicated by two). However, in the case of a single sheet, the operator has to manually insert the print head one by one, and the print head is placed opposite the surface of the sheet. In this case, the procedure of locking the sprocket (2) C2 through the guide (6) is required, resulting in a problem in that the operability of the paper is extremely poor.

The present invention has been made in view of the above circumstances, and its purpose is to be able to automatically feed a cut sheet by setting it in a cassette, and also to be able to feed two sheets from the cassette. It is an object of the present invention to provide a paper feeding device that can process two sheets of paper at the same time.

The present invention will be explained below based on an embodiment shown in FIGS. 3 to 5. FIG. 3 shows the general structure of a two-stage paper feeding cassette device. In the figure, the upper cassette αD and the lower cassette α″jJ+′: accommodate, for example, sheets (3) and (3)′ of different sizes.

Then, the cut sheet (3) in the upper cassette αυ is taken out from the upper part (when the disposed delivery roller 03 is driven and rotated, the cut sheet (3) is taken out from the C2 side), and the cut sheet (3) in the lower cassette αa is taken out. Driving and rotating the delivery roller α, which is also located at the top, (so that it is taken out from two sides).

Thus, the cut sheet (3) or (3)' taken out from the upper cassette (11) or the lower cassette α4 is guided by the guide a9 or αQ, respectively, and sent to the force of the pair of pressure rollers α. This pressure roller a7
) controls the feeding amount of the sent cut sheet (3) or (3)', pinches and conveys it, and transfers it to the platen (6) placed opposite to it.
) and the print head (7), a pair of pail rollers α barrels (two feeds are sent in).This pail roller (one frame is transferred while holding the sent cut sheet (3) or (3)'). Let's do it (2. Ko\(= put the above upper cassette α1)!

(Bottom side cassette) (single sheet taken out from t3 (3)
or (3) ' is between the pressure roller α force and the pail roller H (2) To prevent the sheet from being fed in an inclined state, the tip of the taken out sheet is usually placed at the contact point between the pressure roller α side. (2) After the ticket is in a sagging state, it is held and conveyed and fed to the pale roller α barrel (=shi).

Further, FIG. 4 shows the structure of a two-paper cassette device. In the figure, cassette (2I)-2 accommodates two papers (1). Then, the two papers in this cassette I21) (
1) is the printer body (2) is a sub-button that can be directly connected to the attached gears etc. (not shown) (2> is locked to
By driving and rotating the sprocket (2), it is removed. The two sheets of paper (1) taken out from the cassette Q1) are then guided by the guide (Lll2) and then moved to the pair of pressure rollers αη as described above.
The platen (6) and print head (7)
) and then the pail roller aI = clamps and transfers (2).

At and \, the above two sheets (1) are fed (first, the two sheets (1) are fed in the direction of the pressure roller α force, and then 1''
- Pressure roller α force holds the pail roller (
When the pressure roller (I
7), one roller (17a) is connected to the other roller (17b).
) to be released. In addition, the above pressure roller (l
? ) will not be released if it is a general cassette, such as the cassette shown in Figure 3 (2) or (3) or (3)' taken out from (121).
Pail roller (L frame is sprocket (2). The rotational speed is adjusted to the extent that it does not damage the two paper feed holes (not shown) set in 1n, and the feed amount is also controlled by the sprocket (2)! C2 is set so that

Therefore, one embodiment of the present invention is shown in FIG.
＝I will explain about it. The present invention consists of combining the cut sheet cassette shown in FIG. 3 and the two paper cassette shown in FIG. It is a C2 to obtain.

In other words, Fig. 5 shows the first box containing the cut sheet (3) in the upper part.
cassette αυ is set and two papers (
The second cassette containing 1) (2υ) is set.The reason for this arrangement is that the single sheet (3) taken out from the first cassette (11) is fed to the inside of the two sheets of paper (1) taken out from the other second cassette (21), that is, to the platen (6) side. (6
The tray (2) is located above (; and located on the discharge side of the pail roller α). .

Figure 5 shows single sheet (3) and 2 sheets (1)! At the same time:'
- It shows the state of being sent, but there are only 2 sheets (, 1) left (=
Even if you want to send only the ticket (3) in the set state, you can send it using the method described in Figure 3). Therefore, the paper (3) (to perform two printings, ζ = 2) is the back side of the paper (1) and the surface of the paper (3), which is colored by the pressure sensitive C2 (for example, microcapsules are supported). Just do it like this.

The two papers (1) are generally provided with perforations (1a) at regular intervals and have an uneven shape. Therefore, as shown in Figure 6 (2) (= pressure roller α force contact part (
P) +: When the tip of the cut sheet (3) reaches, the 2 sheets (1)
By positioning so that the perforation (1a) avoids the contact part (P), the single sheet (3) has the perforation (1a).
(=It is possible to smoothly pass the pressure roller ση without being disturbed.

Incidentally, in the above embodiment, the cut sheets (3) are taken out one by one from the first cassette I and printed.
) is pressure-sensitive paper, C2 is one in which the same effect as described above can be obtained even if a plurality of sheets (3) are polymerized.

As described above, the present invention provides a first cassette that accommodates a ticket and a second cassette that accommodates two sheets of paper, which are disposed at the upper and lower portions of the first cassette and the second cassette. This has the excellent effect that the cut sheet and two papers taken out from the machine can be sent in a polymerized state and can be processed at the same time.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a conventional paper feeding device that can simultaneously process single sheets and two stacked sheets of paper, Fig. 2 is a schematic side view showing the main parts of the device, and Fig. 3 A longitudinal sectional view showing a paper feeding device in which two sheets are accommodated in each cassette, and FIG. 4 is a longitudinal sectional view showing a paper feeding device in which two sheets are accommodated. FIG. FIG. 6 is a longitudinal cross-sectional view showing a paper feeding device according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view showing the relationship between the perforations of the two sheets of paper and the cut sheets in FIG.・Print head 3...
Cut paper (single sheet) 11... 1st cassette... Continuous paper (continuous slip paper) 2... - Sprocket 21... 2nd cassette agent Patent attorney Inoue - Male 112 Figure 5 Figure 3/Figure 6-443-

Claims (1)

[Claims] A printer that prints by storing multiple sheets of paper in a cassette (= storing them in the printer body) and feeding them one sheet at a time between a platen and a printing blade placed opposite each other. A first cassette arranged so that cut paper cut into a certain size passes through the platen side, and a second cassette with a sprocket arranged so that the continuous paper passes the print head side facing the platen. The continuous paper fed from the second cassette is
A paper feeding device characterized in that C; is arranged so that printing can be performed with cut sheets fed from a cassette stacked one on top of the other.