JPH0475923A - Reader - Google Patents

Abstract

PURPOSE:To use an auxiliary tray without fail when a long document is fed by restricting the movement of a width restricting guide member to a certain width or below when the auxiliary tray is not used and set to the storage state. CONSTITUTION:An auxiliary tray 10a is rotatably fixed to the right end 10b of an upper cover 10, it is rotated 180 deg. and extended when a document is long, and it is stored when the document is short to reduce the installation area. When the auxiliary tray 10a is stored, a slider 11 is restricted by an escape section 10c formed on the auxiliary tray 10a and can not be made wider than the A4 size, for example, thus only the document with the A4 size or below can be fed. When a B4-size document is fed, the auxiliary tray 10a must be widened, and the B4-size document is prevented from being protruded from the auxiliary tray 10a.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a reading device such as a fax machine that reads image information while conveying a paper sheet.

In addition, it can also be applied to document feeding devices such as copying machines.

[Prior Art] Conventionally, in this type of device, it has been possible to operate the slider (width regulating kite member) regardless of the storage and use of the auxiliary tray (FIG. 7).

[Problem to be solved by the invention] However, in the above-mentioned conventional example, when trying to pass a document that is relatively long in the transverse direction, that is, a sheet of generally used paper that is also long in the longitudinal direction, it is difficult to use the auxiliary tray. It was possible to operate it without using it (Fig. 8).

At this time, the manuscript has largely covered the manuscript tray and is hanging down. Therefore, force is applied to the original in six directions in the figure due to gravity. This becomes a force that goes against the normal movement of paper to the left in the figure, and has a negative effect on the paper feeding device, which is based on a delicate balance C of the difference in frictional force between the paper and rubber, causing the document to feed downward. , leading to double feeding, continuous feeding, etc.

[Means and effects for solving the problem] According to the present invention, when the auxiliary tray is not used and the slider is in the closed state, the movement of the slider is regulated so that it cannot extend beyond a certain radius. This makes it possible to use an auxiliary tray, which is essential when passing long originals.

[First Embodiment] FIG. 1 is a central cross-sectional view of a facsimile machine,
g2 Figures (A) and (B) are a perspective view and a sectional view showing how the guide member is installed.

First, to explain the overall structure of the apparatus, 1 is a thermosensitive recording sheet that develops color by applying heat, and a long sheet is wound around an inner core 1a having a diameter of about 16 layers 1, and the sheet roll 1b is dropped into the sheet. It is stored in a roll halter 2 of the type.

An image is recorded on the memory sheet 1 in a recording section 3, which will be described later, and the recorded sheet L is passed through a guide member 4 to a cutter 5.
The image is guided by the camera, cut from the trailing edge of the image, and stacked on a reversing tray 7 by a discharge roller 6.

Reference numeral 8 denotes a document reading section, which separates the documents 9 stacked on the top cover one by one using a preliminary conveyance roller 8b in pressure contact with a separation pressing piece 8a and a separation roller 8d in pressure contact with a separation pressing piece 8c. Conveyance roller 8 in pressure contact with 8e
The structure is such that it is transported by f. Furthermore, the surface of the transported document 9 is irradiated with light by a light source 8g, and the reflected light is caused to reach a photoelectric conversion element 8j such as a CCD via a mirror 8h and a lens 81, and the image is converted into an image in the copy mode. In the case of a facsimile remote (transmission mode), the data is transmitted to the recording unit of another machine.

In addition, the right end 10b of the auxiliary tray 10a is rotatably fixed to the top cover 10.
° It is rotated and the tray part is extended. When in a standby state or when passing short documents, the installation area can be used while remaining small, and a large document tray can be formed only when passing long documents.

The configuration of the recording section 3 is such that a recording head 3b, in which heating elements each energized to generate heat in response to an image signal are arranged in a row, is mounted on the surface of a platen roller 3a, which also serves as a conveyance means, driven by a motor (not shown), by a pressing spring 3c. It becomes pressurized. Therefore, an image is recorded on the recording sheet 1 by rotating the platen roller 3a in the direction of arrow A to convey the recording sheet 1, and in synchronization with this, the heating element generates heat in response to an image signal. It is.

Next, the cutter 5 will be explained. This is a fixed blade 5a.
This is a rotary cutter consisting of a movable blade 5b and a movable blade 5b. The fixed blade 5a is attached to a fixed blade stay 5a2 that is rotatable around a shaft 5a, and the fixed blade 5a is attached to this stay 5a2.
An upper guide portion 5a is formed.

The movable blade 5b is similarly attached to a movable stay 5b2 that is rotatable about the shaft 5b, and furthermore, the movable blade 5b
A movable blade guide 5b3 for guiding the recording sheet 1 cut by the cutter 5 to the discharge roller 6 is provided on the upper surface of the blade 5b.

FIGS. 2 and 3 are perspective views of the apparatus, with FIG. 2 showing the auxiliary tray in use and FIG. 3 showing the auxiliary tray in storage. For ease of understanding, the maximum paper passing width is B4 size.

In FIG. 2, since the slider 11 is not subject to any restrictions in its operation, it is possible to adjust the document width from B4@ to A4 or even smaller document widths. 10c is a relief part for slider ll.

In Figure 3, the auxiliary tray is closed and the slider 11 is A.
It is impossible to make it wider than 4 sizes or because it is restricted by the auxiliary tray. Therefore, only A4 or smaller originals can be passed through. For this reason, the operator must always open the auxiliary tray as shown in FIG. 2 when passing a B4 size document, and the B4 size document cannot be larger than the document tray.

FIG. 4 shows a modified example, in which the shape of the auxiliary tray 10a is slightly modified.

[Other Embodiments] Although the rotary auxiliary tray has been described in the above embodiment, a pull-out type slider 108' can also be constructed in the same manner (fifth embodiment).
Fig. 6).

Further, the operation of the slider may be internally restricted using a link or the like.

[Effects of the Invention] As explained above, by creating a structure that restricts the movement of the stator when the auxiliary tray is not used and is stored, it is possible to handle paper of a size that requires the auxiliary tray. When feeding paper, the auxiliary tray must be pulled out.
It becomes a reading device that does not cause erroneous operation.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of a facsimile machine embodying the present invention, Fig. 2 is a perspective view of the auxiliary tray of the apparatus shown in Fig. 1 when it is open, and Fig. 3 is a perspective view when the auxiliary tray is closed. Similarly, FIG. 5 is a perspective view of the auxiliary tray of a facsimile according to another embodiment when it is open. FIG. 6 is a perspective view of the device shown in FIG. 5 when it is closed. FIG. 7 is a conventional example. FIG. 8 is a side view of a conventional example when a document is set. 9 is the document lO is the auxiliary tray 11 is the stitor

Claims (1)

[Scope of Claims] The document conveys the sheet of paper, has a guide member for regulating the width of the sheet of paper, and further includes a document tray on the paper feeding side and an auxiliary tray for expanding the length of the document tray in the paper feeding direction. A reading device having the following configuration, wherein when the auxiliary tray is not in use, the auxiliary tray restricts the movement of the width regulating guide member.