JPH0448859A - Image reading 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] <Industrial Field of Application> The present invention is applicable to facsimile, ? The present invention relates to an image reading device having a document reading system, such as a J-shamil image reader.

〈Conventional technology〉 Traditionally, facsimile? J [In image reading devices such as military aircraft, in the document reading system, the document is conveyed to the optical reading system at a predetermined speed by a conveyance means, and its contents are read.
It is configured to send image information to a recording system.

For example, in the facsimile machine shown in FIG. 4, the document tray 50 on which documents are loaded is normally configured to feed documents corresponding to the length in the document feeding direction.
When feeding a long document in the document feeding direction, the auxiliary tray 51 that is folded and connected to the document tray 50 is unfolded to extend the document tray 50 in the feeding direction.

This prevents the rear end of the document from hanging down from the document tray 50 and from applying force against the feeding of the document due to its own weight.

Further, regardless of whether the auxiliary tray 51 is used or stored, it is possible to insert a document up to the maximum width of the insertion slot 52. Note that 53 is a slider for guiding the stacked originals in the width direction.

<Problem to be solved by the invention> However, in the above conventional technology, the auxiliary tray 5
1 was stored, it was possible to insert a long document into the insertion slot 52 in the feeding direction.

In this case, as shown in FIG. 5, the rear end of the document 54 hangs down from the document tray 50, and the document must be fed against its own weight, resulting in double feeding and transportation.

Otherwise, there is a possibility that it may cause skewing or the like.

An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide an auxiliary loading member that can extend the loading member for loading originals in the feeding direction, and to restrict the width of the original insertion opening to a narrow width in the stored state. An object of the present invention is to provide an image reading device.

<Means for Solving the Problems> Means for solving the above-mentioned problems of the prior art and applied to the embodiments described below include a loading member for loading originals so that they can be fed from the original insertion slot; The auxiliary stacking member includes an auxiliary stacking member capable of supporting a document by extending the member in the feeding direction, and a reading means for reading an image of the document fed from the stacking member, and the auxiliary stacking member is in a stored state. is characterized in that the width of the document insertion slot is restricted to a narrow width.

<Function> According to the above means, since the auxiliary loading member capable of supporting the original by extending the loading member in the feeding direction restricts the width of the original insertion opening to be narrow in the stored state,
If the auxiliary stacking member is not used, it will not be possible to feed long originals in the normal feeding direction from the original insertion opening.

This can prevent the rear end of the document from protruding above the stacking member and causing double feeding, continuous feeding, skew feeding, etc. due to its own weight.

<Embodiment> An embodiment of an image reading device to which the present invention is applied will be described below with reference to the drawings. In this embodiment, a facsimile device will be explained as an image reading device.

Fig. 1 is an external perspective view of the facsimile machine showing the storage state of the auxiliary tray, Fig. 2 is an external perspective view of the facsimile machine showing the use state of the auxiliary tray, and Fig. 3 is a cross-sectional explanatory diagram showing the schematic configuration of the facsimile machine. It is.

First, a schematic configuration of a facsimile machine to which the present invention is applied will be explained with reference to FIG.

This facsimile machine is composed of a recording system A and a document reading system B.

First, to explain the recording system A, 1 is a thermosensitive recording sheet that develops color by applying heat, and a sheet roll 1b in which a long sheet is wound in a roll shape around an inner core 1a having a diameter of 16+m is a drop-in type roll holder. An image is recorded on the recording sheet 1 pulled out from the sheet roll 1b stored in the sheet roll 1b stored in the sheet roll 1b in the recording section 3, which will be described later. The image is cut from the trailing edge of the image, and is ejected to a reversing tray 7 by an ejection roller 6, where it is stacked.

To explain the configuration of the recording section 3, a recording head 3b is provided on the surface of a platen roller 3a, which is driven by a drive source (not shown) and also serves as a conveyance means, in which heating elements that are individually energized and generate heat according to image information are arranged in a line. , is configured to be pressed by a pressing spring 3c.

Therefore, by rotating the platen roller 3a in the direction of the arrow a to convey the recording sheet 1, and in synchronization with this, the heating element of the rad 3b is heated for recording in accordance with the image signal. Images are recorded.

Next, the canter 5 will be explained. This is a rotating force blade consisting of a fixed blade 5a and a movable blade 5b. The fixed blade 5a is attached to a fixed blade stay 5at that is rotatable about a shaft 5a+, and an upper guide portion 5a3 of the fixed blade 5a is formed in this stay 5az.

The movable blade 5b is similarly attached to a movable blade stay 5b that is rotatable around a shaft 5b, and furthermore, the recording sheet 1 cut by the cutter 5 is placed on the upper surface of the movable blade 5b by a discharge roller. A movable blade guide 5bz for guiding the blade to the blade 6 is provided.

The recording sheet 1 after the recording is cut from the trailing edge of the image by the cutter 5, conveyed by the discharge port roller 6, and stacked on the reversing tray 7.

Next, to explain the document reading system B, the document tray 9 is a stacking member that also serves as the top cover of the facsimile machine.
When the originals 9 stacked on A are inserted from the original insertion slot 9b, they are sequentially fed by the preliminary conveyance pressing piece 8a and the preliminary conveying roller 8b that comes into pressure contact with this, and then the separation pressing piece 8C and the separation pressing piece 8C that comes into pressure contact with this. After the sheets are separated one by one by a roller 8d, the sheet is further conveyed to an image reading position on the downstream side by a pressing roller 8e and a conveying roller 8f pressed against the pressing roller 8e.

The original 9 conveyed to the image reading position is irradiated with light from a light source 8g, and the reflected light is transmitted to a photoelectric conversion element 8j such as a CCD via a mirror 8h and a lens B, and the image information is transferred to the copy mode. In the case of facsimile mode, the data is transmitted to the recording unit of the other machine.

After the image has been read, the original 9 is conveyed by the pressing roller 8e and the conveying roller 8f, and is discharged upward onto the discharge tray 8.

Next, an auxiliary tray that can extend the document tray 9a in the feeding direction will be described with reference to FIGS. 1 and 2.

In FIG. 1, an auxiliary tray 10 is attached above the document tray 9a so as to be rotatable about 180 degrees about the right end. In the stored state, the auxiliary tray 10 is superimposed on the original tray 9a as shown in FIG. 1, and in the used state, the original tray 9a is moved in the feeding direction as shown in FIG. It can be rotated and used to extend it.

The auxiliary tray 10 is formed to have a concave cross-section, and as shown in FIG. 1, in the stored state, both ends of the document insertion slot 9b are closed by convex portions 10a to restrict the width. The original document 9 is configured to be fed through a recessed portion Job formed corresponding to the central portion of the document insertion opening 9b.

Therefore, when the auxiliary tray 10 is in the stored state, the recess 1
The original 9 on the width plate 0b cannot be fed, and the stacked originals are often small in size in the feeding direction, so the rear end of the original 9 does not protrude beyond the auxiliary tray 10. Or, even if it protrudes, it is only a small amount.

In addition, when feeding the document 9 on the width plate of the recess 10b, the auxiliary tray 10 is rotated approximately 180 degrees and the document tray 9a is extended in the feeding direction as shown in FIG. do. In this case, the documents to be stacked are often large in size in the feeding direction, and the trailing edge of the document 9 does not protrude, or even if it does, it protrudes only slightly.

Therefore, when feeding documents of any size in the feeding direction, the rear end of the document 9 stacked on the auxiliary tray 10 protrudes and hangs down, resulting in double feeding, transportation, or skewed feeding due to its own weight. etc. can be prevented from occurring.

Although this embodiment has been described using a facsimile machine as an image reading device, it can also be applied to other devices such as an image reader.

<Effects of the Invention> As described above, the present invention provides an auxiliary stacking member capable of supporting documents by extending the stacking member in the feeding direction, so that the width of the document insertion opening is restricted to a narrow width in the stored state. Therefore, unless the auxiliary stacking member is used, it becomes impossible to feed long-sized originals in the normal feeding direction from the original insertion opening.

This allows you to feed both large and small originals.
By allowing the rear end of the document to protrude and hang down from above the stacking member, it is possible to prevent double feeding, transportation, skewing, etc. due to its own weight.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of the facsimile machine showing the storage state of the auxiliary tray, Fig. 2 is an external perspective view of the facsimile machine showing the use state of the auxiliary tray, and Fig. 3 is a cross-sectional explanatory diagram showing the schematic configuration of the facsimile machine. , FIG. 4, and FIG. 5 are explanatory diagrams of conventional examples. A is a recording system, B is a document reading system, 1 is a thermal recording sheet, I
a is the inner core, lb is the sheet roll, 2 is the roll holder,
3 is a recording unit, 3a is a platen roller, 3b is a recording head, 3c is a pressing spring, 4 is a guide member, 5 is a cutter, 6 is a discharge roller, 7 is a reversing tray, 8a is a preliminary conveyance pressing piece, 8b is a preliminary conveyance Roller, 8c is separation pressing piece, 8
d is a separation roller, 8e is a pressing roller, 8f is a conveyance roller,
8g is a light source, 8h is a mirror, 81 is a lens, 8j is a photoelectric conversion element, 8 is an output tray, 9 is an original, 9a is an original tray, 9b is an original insertion slot, 10 is an auxiliary tray, 10a is a convex portion, 10b is in four parts.

Claims (1)

[Scope of Claims] A stacking member for stacking originals so that they can be fed from a document insertion slot; an auxiliary stacking member capable of supporting the originals by extending the stacking member in the feeding direction; and the stacking member for supporting the originals. An image reading device comprising: a reading device for reading a document image fed from the member, wherein the auxiliary stacking member restricts a document insertion opening to a narrow width in a stored state.