JPH03262665A - Output device - Google Patents

Abstract

PURPOSE:To prevent data from being outputted with the shortage of paper by a method wherein the quantity of output paper remaining after the output of data is compared with the quantity of data intended to be outputted next, with the shortage of the remaining output paper the paper is automatically replaced by spare paper, and the spare paper is fixed to the unreplaced paper with an adhesive material or the like. CONSTITUTION:After completion of data output, the thickness of output paper on a roller 1 is detected by a sensor, and the length of the remaining output paper is recognized to be compared with the length of output paper required in a next data output. Whether the next data can be outputted on the remaining output paper is judged. If the judgement is negative, the paper on the roller 1 is taken up on a take-up roller 2, and a tape or other adhesive material is vertically fed from the lower part of the roller 1. The leading end of spare paper on a roller 3 is made to adhere to the paper on the roller 1, furthermore being fixed to the paper on the roller 1 by the application of pressure or the like. After the roller 1 is positionally replaced by the roller 3 by a rotating shaft 5 rotating in a direction of an arrow A and the paper on the roller 3 is fed by the lapped part of the paper on the roller 1 and the roller 3, data output is restarted.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an output device such as a printer, and in particular, when it is determined that the next data to be output cannot be outputted on the remaining output paper after data output. It is equipped with the function of automatically replacing paper with a spare paper, fixing the spare paper to the paper before replacement, and continuously outputting.

[Conventional technology]

FIG. 3 is a perspective view showing a conventional output device such as a printer.

In the figure, (1) is a roller for sending out the output paper, and (2) is a roller for winding up the paper after output.

Next, the operation will be explained. After data output is completed.

The data output portion is fed out by the roller (1) for the next output, and at the same time, the fed out data output portion is wound up by the roller (2) to which the leading edge of the output paper has been fixed in advance. . Data output resumes when the paper is advanced until the next output is available.

[Problem to be solved by the invention]

Since conventional output devices such as printers are configured as described above, an operator has to recognize when there is little output paper left and manually replace the paper. In addition, if one worker forgets to replace the paper and output is started while there is not enough paper, there is a problem that the output data will be lost in the middle and the data will have to be output again.

This invention was made to solve the above-mentioned problems, and automatically replaces the output paper.

The purpose is to obtain an output device that can automatically restart output.

[Means to solve the problem]

After outputting data, the output device according to the present invention compares the amount of remaining output paper with the amount of data scheduled to be output next, and if it is determined that the remaining output paper is insufficient, it automatically saves a spare paper. By replacing the original paper with the original paper and fixing the spare paper to the old paper with an adhesive or the like, continuous output can be performed.

[For production]

The output device according to the present invention prepares and places a spare paper roller near the output paper roller in use, so that the output paper in use is insufficient for the amount of data scheduled to be output next. If it is determined that this is the case, after fixing the leading edge of the spare paper to the currently used output paper with an adhesive or the like, continuous data output is performed by swapping the positions of the currently used output paper and the spare paper.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a perspective view showing an output device which is an embodiment of the present invention, and FIG. 2 is an explanatory perspective view showing the roller for sending out the output paper shown in FIG. 1 and a spare roller from below. .

In the figure, (1) is a roller for sending out the output paper, and (2) is a roller for winding up the paper after output.

(3) is a spare roller, (4) is a paper holder, (5)
is a rotating shaft for exchanging rollers (1) and (3), and (6) is a rotating shaft for rollers (1) and (3).

Next, the operation will be explained. After data output is completed.

By sensing the thickness of the output paper from roller (1) with a sensor, the length of the remaining output paper is recognized.

The data to be output next is compared with the length of the output paper required to determine whether the data can be output on the remaining output paper.

If it is determined that it can be output, the primary data is output.

If it is determined that the paper cannot be output, the paper on the roller (1) is wound up on the take-up roller (2). A sensor detects when the paper on the roller (1) reaches a thickness of 2 to 3 sheets, and winding is stopped.

The paper on the spare roller (3) is set in advance through the paper holder (4) so that its leading edge is in contact with the roller (1), and when winding stops, adhesives such as tape come out from the bottom of the roller (1). The paper on the roller (1) comes out in the vertical direction, attaches the leading edge of the paper on the roller (3) to the paper on the roller (1), and then, by applying pressure or the like, the paper on the roller (3) Fix it to the paper in (1). The rotation shaft (6) of roller (1) and roller (3)
) as the tips of rollers (1) and (3) contract.
) is unlocked, and the rotation axis (5) is moved to the arrow (A).
When rotated in the direction of K, the positions of roller (1) and roller (3) are swapped, and roller (1) and roller (3)
)'s contracted rotation shaft (6) returns to its original position, fixing its position, and rollers (1) and (3) can now rotate.

The paper is always wound around the roller (2) so that the tension of the paper is constant. The paper from roller (3) is fed only in the overlapped part of the paper between roller (1) and roller (3).
Data output is resumed.

〔Effect of the invention〕

As described above, according to this invention, since the remaining amount of output paper is recognized and the paper is automatically replaced, the manual work for paper replacement is reduced, and even if paper is insufficient, data can be This has the effect of preventing output.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an output device according to an embodiment of the present invention, FIG. 2 is a perspective view of the roller for sending out the output paper shown in FIG. 1, and a spare roller seen from below, and FIG. FIG. 1 is a perspective view showing a conventional output device. In the figure, (1) is a roller for sending out the output paper, and (2) is a roller for winding up the paper after output. (3) is the spare roller% (4) is the paper presser, (5)
is a rotating shaft for rotating rollers (1) and (3), and (6) is a rotating shaft for rollers (1) and (3). In addition, the same symbols in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] An output device characterized by having a function of automatically replacing output paper with a spare paper when the output paper runs low, and a function of continuously outputting by fixing the spare paper to the paper before replacement.