JPH05278906A - Recording device - Google Patents

Abstract

PURPOSE:To make locating and size sensing at a time which needs only stetting of a roll-form recording medium. CONSTITUTION:At the bottom of a roll holder 9 a roll motion restricting plate 10 for restricting the side of a sheet roll 8 is installed in such a way as movable in the vertical direction, and a plate sensor 11 for sensing the position change due to movement of the plate 10 is installed at the bottom of the rear of the roll holder 9 where the plate 10 is positioned as mating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording device such as a facsimile machine or a copying machine, and more particularly to a recording device for recording using a recording medium wound in a roll.

[0002]

2. Description of the Related Art Conventionally, in a recording apparatus such as a facsimile machine or a copying machine using a recording medium wound in a roll shape (hereinafter referred to as "sheet roll"), sheet rolls of various sizes have been used. A size detecting means for detecting the size is provided.

For example, in the facsimile apparatus shown in FIG. 6, the sheet roll 50 is loaded in a drop-type roll holder 51, and the width size of the sheet roll 50 is regulated in the roll holder 51. Size control plate
A size detection sensor 53 for detecting the positions of the size control plate 52 and the size control plate 52 is provided.

The structure of the size detecting means of the sheet roll 50 will be specifically described. As shown in FIG. 7, the size regulating plate 52 regulates the side surface of the sheet roll 50, and the width size of the sheet roll 50 is When changing, the size regulating plate 52 is removed in the roll holder 51 to change the regulating position.

For example, as shown in FIG. 8, when using two kinds of sheet rolls 50 having different sizes, when using a small size sheet roll 50, the size regulating plate 52 is inserted into the portion A and inserted. Projection 52a of size control plate 52
By blocking the size detection sensor 53, the size detection sensor 53 is turned on to detect the size. At this time, the size regulating plate 52 positions the sheet roll 50 in the width direction.

When using a large size sheet roll 50, the size regulating plate 52 is removed and the projection 52a is removed.
Plug in part B. At this time, since the size detection sensor 53 is not cut off, the size detection sensor 53 is turned off, and the sheet roll
50 size detections are performed.

[0007]

However, in the above-mentioned conventional technique, every time the size of the sheet roll 50 is changed, the operator is required to remove the size regulating plate 52 to change the position, which is troublesome. was there. In addition, the size regulating plate 52 may not be stably attached and may cause detection failure. Further, since the size regulating plate 52 is detachable, there is a risk that the size cannot be switched if it is lost.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a recording apparatus capable of positioning the recording medium only by loading it and detecting its size at the same time.

[0009]

Means for solving the above-mentioned problems of the prior art, and applied to the embodiments described below, use a recording medium of a plurality of sizes wound in a roll to form an image in accordance with image information. In a recording apparatus for recording a recording medium, a loading section for loading the roll-shaped recording medium and a side surface of the roll-shaped recording medium are regulated, and the loading section is movable in the vertical direction by the weight of the recording medium. It is characterized by having a regulating member and a detecting means for detecting a positional change due to the movement of the regulating member.

[0010]

According to the above construction, by incorporating the regulating member into the loading section, it is only necessary to set the recording medium in the loading section.
The size of the recording medium can be detected simultaneously by positioning the recording medium and moving the regulating member.

[0011]

Next, an embodiment of the present invention in which the above means is applied to a facsimile machine will be described. 1 is a cross-sectional view showing a schematic configuration of a recording unit of a facsimile apparatus, FIG. 2 is an external perspective view showing an external configuration of the facsimile apparatus, FIG. 3 is a perspective explanatory view of a sheet roll loading section, and FIG. 4 is a small-sized sheet. FIG. 5 is a cross-sectional view of the size detection unit when a roll is loaded, and FIG. 5 is a cross-sectional view of the size detection unit when a large-sized sheet roll is loaded.

First, the external structure of the facsimile apparatus will be described with reference to FIG. On the top cover of the apparatus main body 1, an original placing table 2 on which a plurality of originals can be placed, an operation panel 3 provided with ten keys, function keys and the like, a telephone 4, an original ejecting for ejecting an original after reading Each tray 5 is provided.

An optical reading system 6 is arranged below the operation panel 3 to read the image by conveying the document, and a recording system 7 employing a thermal recording system is arranged below the document table 2. ..

Next, a schematic structure of the recording system 7 will be described with reference to FIG.
Will be described with reference to. A recording sheet 8 is a recording medium.
It is a sheet roll in which a is wound in a roll shape, and is loaded in a drop-type roll holder 9 which is a loading section. As the recording sheet 8a, heat-sensitive recording paper that develops color due to heat is used.

A roll restricting plate 10 which is a restricting member for restricting the side surface of the sheet roll 8 is attached to the bottom of the roll holder 9 so as to be vertically movable. Further, a regulation plate detection sensor 11 which is a detection means for detecting a positional change due to the movement of the roll regulation plate 10 is provided on the lower portion of the back side of the roll holder 9 corresponding to the roll regulation plate 10. The sheet roll 8 is configured so that its size can be detected by the detection signal of the regulation plate detection sensor 11.

The recording sheet 8a pulled out from the sheet roll 8 is guided between the platen roller 13 and the recording head 14 pressed against it by removing the curl by the guide shaft 12a and the decal shaft 12b. The platen roller 13 supports the recording sheet 8a in the recording unit and also serves as a conveying unit for the recording sheet 8a. The recording head 14 has a plurality of heat generating resistance elements arranged in the width direction of the recording sheet 8a, and selectively energizes and generates heat according to image information to perform recording.

Reference numeral 15 is a cutter for cutting the recording sheet 8a after recording in page units, and 16 is a discharge roller for conveying the recording sheet 8a at the time of recording and discharging the cut recording sheet 8a. ..

The recording operation of the recording system 7 will be described below.
The recording sheet 8a pulled out from the sheet roll 8 is conveyed by the platen roller 13 and pressed by the recording head 14 to perform recording line by line. The recording sheet 8a after recording is cut by the cutter 15 page by page, and the discharge roller 16
Is discharged to the outside of the device. Further, the leading end of the cut recording sheet 8a is rewound to the pressing portion by the recording head 14 by rotating the platen roller 13 in the reverse direction, and prepares for recording on the next page and thereafter.

Next, the structure of the size detecting portion of the sheet roll 8 will be described with reference to FIGS. First, as shown in FIG. 3, at a predetermined position on the bottom of the roll holder 9, a roll regulating plate 10 for regulating the side surface of the sheet roll 8 is provided.
Is provided. In this embodiment, two types of sheet rolls 8 of small size and large size can be loaded.

As shown in FIG. 4, the roll restricting plate 10 has a restricting portion 10a, a flange portion 10b, and a shaft portion 10c which are integrally formed, and an elongated hole 9 provided at the bottom portion of the roll holder 9
The regulating portion 10a projects from the a into the holder, and the collar portion 10a
b and the shaft portion 10c are housed in a housing 9b provided on the back side of the roll holder 9. A spring 9c is provided between the flange 10b and the bottom of the housing 9b.
It is attached by being inserted through c, and the collar portion 10b is biased upward so that the regulating portion 10a projects into the holder. Further, an elongated hole 9d for inserting the shaft portion 10c is provided at the bottom of the housing 9b, and a regulation plate detection sensor 11 is arranged at a position facing the elongated hole 9d.

Next, the detection operation of the size detecting section will be described. As shown in FIG. 4, when a small-sized sheet roll 8 is loaded in the roll holder 9, the roll regulating plate is used.
The spring 10 is pushed upward by the spring 9c in the housing 9b, and the regulating portion 10 is pushed from the bottom of the roll holder 9.
a protrudes and regulates the side position of the sheet roll 8. At this time, the shaft portion 10c is housed in the housing 9b, and the regulation plate detection sensor 11 is in the OFF state.

Further, as shown in FIG. 5, when a large-sized sheet roll 8 is loaded into the roll holder 9, the roll regulating plate 10 causes the regulating portion 10a to resist the urging force of the spring 9c by the weight of the sheet roll 8. Then, it is pushed down into the housing 9b through the elongated hole 9a. At this time, the shaft portion 10c of the roll regulating plate 10 is provided with the long hole 9 provided at the bottom of the housing 9b.
It projects downward from d and shuts off the regulation plate detection sensor 11
The N state is set. As the spring 9c, a spring having a weak pressing force is used so that the roll regulating plate 10 does not lift the sheet roll 8 even if the roll diameter of the sheet roll 8 becomes small. The side surface of the sheet roll 8 is positioned by the side surface portion of the roll holder 9.

According to the above structure, the size of the sheet roll 8 can be detected and the side surface of the sheet roll 8 can be positioned simply by loading the sheet rolls 8 having different sizes into the roll holder 9.

In the above embodiment, the size detection in the case of loading the different size sheet rolls 8 of different sizes has been described. However, even when the sheet rolls of various sizes are used, the roll regulating plate 10 is used. By providing a plurality of positions corresponding to each size, it is possible to perform size detection and positioning of the sheet roll 8.

In the above embodiment, the case where the sheet roll 1 is loaded into the recording system 7 of the facsimile machine has been described, but the invention can be applied to other devices such as a copying machine.

Further, in the above-mentioned embodiment, the heat-sensitive recording method is exemplified as the recording means, but the recording means is not limited to this and other recording methods such as a thermal transfer recording method using an ink sheet may be used.

[0027]

As described above, according to the present invention, the size of the recording medium is detected by positioning the recording medium and moving the regulating member only by setting the recording medium in the loading portion by incorporating the regulating member in the loading portion. Can be done at the same time.

Therefore, unlike the prior art, the work of attaching and detaching the size regulating plate when loading the roll-shaped recording medium is unnecessary, and there is no risk of improper mounting or loss of the size regulating plate, so that the device is easy to use and reliable. It is possible to improve the sex.

[Brief description of drawings]

FIG. 1 is a sectional view showing a schematic configuration of a recording system of a facsimile apparatus.

FIG. 2 is an external perspective view showing an external configuration of a facsimile device.

FIG. 3 is a perspective view illustrating a sheet roll loading unit.

FIG. 4 is a cross-sectional view of a size detection unit when a small-sized sheet roll is loaded.

FIG. 5 is a cross-sectional view of a size detection unit when a large-sized sheet roll is loaded.

FIG. 6 is an explanatory sectional view showing a recording system of a conventional facsimile apparatus.

FIG. 7 is a perspective explanatory view of a conventional sheet roll loading unit.

FIG. 8 is a cross-sectional view of a size detection unit when a conventional sheet roll is loaded.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Device main body 2 ... Original placing table 3 ... Operation panel 4 ... Telephone 5 ... Original discharging tray 6 ... Optical reading system 7 ... Recording system 8 ... Sheet roll 8a ... Recording sheet 9 ... Roll holder 9a, 9d ... Oblong hole 9b ... Housing 9c ... Spring 10 ... Roll regulation plate 10a ... Regulation portion 10b ... Brim portion 10c ... Shaft portion 11 ... Regulation plate detection sensor 12a ... Guide shaft 12b ... Decal shaft 13 ... Platen roller 14 ... Record head 15 ... Cutter 16 ... Discharge roller

Claims (1)

[Claims] 1. A recording apparatus for recording an image according to image information by using recording media of a plurality of sizes wound in a roll shape, a loading section for loading the roll recording medium, and the roll. Recording device having a regulation member that regulates the side surface of the recording medium and is movable in the up-down direction of the loading section due to the weight of the recording medium, and a detection unit that detects a positional change due to the movement of the regulation member. ..