JPH0655876A - Recording sheet - Google Patents

Abstract

(57) [Summary] [Purpose] To make it possible to check the remaining amount of roll recording paper installed in a printing device. [Structure] Numerical values or scales are printed on the surface of the roll recording paper to be printed at regular intervals from the end of the roll recording paper.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording sheet used in a recording device.

[0002]

2. Description of the Related Art Conventionally, roll type recording paper has been often used in facsimiles, printers and the like.
Since the above-mentioned facsimile automatically records the received information on the recording paper, it is necessary to detect the remaining amount of the paper before the recording paper runs out. Therefore, conventionally, a recording sheet remaining amount detection and its display device have been provided.

When a roll type recording sheet is used, the remaining amount can be known by measuring the roll diameter or directly observing the roll diameter. FIG. 2 is an example of a conventional roll-type recording sheet remaining amount detection. In FIG. 2, the sensor rod 3 biased by the spring 2 is pressed against the roll paper 1. As a result, when the diameter of the roll paper 1 is reduced, the sensor rod 3 is also displaced as shown by the broken line, and the displacement of the sensor rod with respect to the residual amount display portion 4 indicates the residual amount.

In the example of FIG. 3, a transparent window 5 is provided in the holding portion of the roll paper 1, which can be directly viewed through the transparent window 5. According to such a remaining amount detection display, the mechanism is complicated and the cost of the apparatus is increased.

Therefore, in order to indicate the end of the roll paper, there is one in which a mark such as red is formed on the side end of the paper over a considerable length from the end of the roll paper. In this case, it is not necessary to provide a display unit on the device, and the remaining amount can be detected to some extent by using the device as it is.

[0006]

However, in the conventional remaining amount display system, it is not possible to accurately know the specific remaining amount value up to the end of the roll paper.

[0007]

Therefore, according to the present invention, the remaining amount is recorded in advance at a constant interval on the surface of the roll paper on which printing is performed.

[0008]

With the above structure, the remaining amount of roll paper can be accurately grasped by a numerical value, and it is not necessary to provide the main body device with a function for displaying the remaining amount.

[0009]

1 is a perspective view showing a roll type recording sheet according to the present invention. In FIG. 1, the roll-type recording paper 11 is held by a roll paper holding unit of an apparatus that uses the paper. Then, a scale 12 for indicating the remaining amount of roll paper is preliminarily printed on the front surface (recording surface) of the paper near the left end of the recording paper 11.

In the case of the example shown in FIG. 1, recording paper 1
The amount of the remaining recording paper can be determined by looking at the scale 12 or the numerical value printed every time 1 is used.

[0011]

According to the present invention, since the roll type recording paper is provided with a display indicating the remaining amount of paper,
It is possible to easily know the remaining amount of paper by looking at the scale displayed on the surface of the paper without requiring any special means for detecting the remaining amount of the roll type recording paper.

[Brief description of drawings]

FIG. 1 is a perspective view of a recording sheet according to an embodiment of the invention.

FIG. 2 is a configuration diagram of a remaining amount detection unit in a conventional recording device.

FIG. 3 is a configuration diagram of a remaining amount detection unit in a conventional recording device.

[Explanation of symbols]

 11 roll recording paper 12 scale

Claims (1)

[Claims] 1. A recording sheet on which a remaining amount is displayed on the surface to be printed at regular intervals from the end.