JPS60113228A - Original cover - Google Patents

Abstract

PURPOSE:To enable detection of an original setting state after closing an original cover and confirmation of size by forming the cover made of a semitransparent material and forming an original size indication mark on the upper surface. CONSTITUTION:An original cover 3 is provided with its side end fixed with a fixing member 4 flexibly openably arount it with a handle 5. The cover 3 is made of a white semitransparent material and when closed, an original 6 can be seen through it from the outside. An original size indication mark 7 is shown. Accordingly, when the original 6 is placed and the cover 3 is closed, it can be confirmed from the outside whether the original 6 is set right on a platen 2 or not. The cover 3 is constituted by sandwiching both sides of a white semitransparent soft PVC sheet 31 with transparent films 32, such as polyethylen terephthalate films.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a copying machine in which, when an object to be copied (original) is placed on a mounting table, the upper surface of the document mounting table is pressed against the mounting table. Concerning a covering manuscript cover.

<Prior Art> In order to form an image of an original, which is an object to be copied, on a photoreceptor, an electrophotographic copying machine places the original on a transparent mounting table, and simultaneously irradiates the placed original with light. It scans optically and forms an image of reflected light from the original onto the photoreceptor. Therefore,
In order to press the original onto the document table, a document cover is provided which can be opened and closed to cover the document table. This document cover usually has a document suppressing surface made of a white material.
If the cover is closed after the document is placed, it is impossible to see how the document was placed.

Therefore, according to Utility Model Application Publication No. 53'-122936,
First, a transparent plate is used to press the original against the original placing surface, the original is set in an immovable state, the placed state is confirmed, and then the original cover, which has a white material formed on the lower surface of the upper part, is closed. was presented.

If this is the case, it is possible to prevent erroneous copying due to a mistake in setting the original, but it is not possible to confirm the original size after the original cover is closed, and it is possible that the wrong copy paper may be selected. Furthermore, it is true that setting the original on the mounting table was extremely troublesome.

On the other hand, in the past, it was not possible to compare the original size and the image area when the magnification was changed in the actual size, and many mistakes were made in the selection of the magnification and the selection of the copy paper.

<Objective of the Invention> An object of the present invention is to make it easier to place a cent on a placing table.

Another object of the present invention is to provide a document cover that allows confirmation of the set state of the document after it is placed on the placing table.

Still another object of the present invention is to provide a document cover that allows easy recognition of the comparison between the document size and the image area when the magnification is changed.

<Embodiment> In order to achieve the above-mentioned object, the present invention enables the document to be viewed through the document cover after the document cover is closed.

The present invention will be described in detail below with reference to the drawings. ) FIG. 1 is a top view showing a copying machine of the present invention, and FIG. 2 is a sectional view thereof. In the figure, 1 is an operation panel provided with means for setting various modes for operating the copying machine; 3 is a document mounting table consisting of a transparent glass 75) provided on the top surface of the 2-digit copying machine body; The side end of the document cover is attached to the main body of the copying machine by a fixing member 4 as shown in the figure, and the document cover can be opened and closed around this portion. Reference numeral 5 is a pusher fixed to the free end side of the document cover 3.

According to the present invention, the document cover 3 is made of a white translucent material, and the document 6 can be seen through the cover 3 when the document cover 3 is closed. Further, as shown in FIG. 5 in its top view, the document cover 3 is made to correspond to the document placement table 2, and has a mark (index) 7 for indicating the position and size of the document placed on the document placement table 2.
etc. are displayed. These seven indicators display the original center position and original size, and the image area when changing the magnification. In particular, the upper part of the drawing shows the case when reduced, and the lower part shows the case when enlarged.

Therefore, 70.74 indicates a reduction of 0.86 times, and A3°A
4 size originals B4. This is an index that indicates when to change the size to B5, and is 71.73 times A3. Size A when making a 0.70x reduced copy from a B4 size original
4. An index 72 indicating a B5 image area is an index indicating an A4 size image area when a 0.81 times reduced copy is made from a B4 size original. Also, 75.79 is A4 when a B size original is enlarged 1.15 times. ,
Index indicating the image area of A3 size, 76.78 degrees B5° B4. The index indicating the A3 size image area and 77 are A3 when an A4 size document is enlarged 121 times.
This is an index indicating the size of the image area.

Therefore, by placing the original 6 on the placing table 2 and closing the original cover 3, it is possible to check whether the original 6 on the placing table 2 is set correctly with the original cover 3 closed. In this case, it can be easily determined whether or not the original 6 is placed along the index 7, and the size of the original can also be easily recognized. This has a great effect in preventing copy paper selection errors and the like. Particularly, for full size copying, it is sufficient to select a sheet of paper of a size that matches the index 7, which makes the sheet selection operation extremely easy. Furthermore, in the case of variable-magnification copying, the variable-magnification ratio can be selected according to the indicators 70 to 79, and the paper size can be easily selected by visually observing the variable-magnification ratio at actual size. For example, if you want to make a variable size copy of an A3 size original to A4 size, you can look at the index 7 indicating A3 size and the index 71 between A4 size and select the variable size (0, 70). You can check the actual size. If you still want to copy an A3 size original at 086x, you can see at a glance that you only need to select B4 size paper according to the index 70, making the selection operation very easy. Therefore, copy errors can be significantly reduced.

Here, the translucent member forming the document cover 3 according to the present invention will be described.

FIG. 3 is an enlarged sectional view showing the structure of the document cover 3. As shown in FIG.

In the figure, the document cover 3 is made of, for example, soft vinyl chloride (
It is constructed by sandwiching both sides of a white translucent 31 with thin transparent films 32 (for example, polyethylene terephthalate film). Although a three-layer structure is shown in this example, the soft vinyl chloride 31 is sandwiched between six sides of the original and It is also possible to have a two-layer structure in which transparent members or the like are stacked on top of each other to provide reinforcement from the upper surface. Here, in order to make the document cover 3 flexible, it is sufficient to select a flexible material for the transparent member to be overlapped with the soft vinyl chloride 31, and the document cover 3 itself should be made of a hard material. In that case, the transparent member should be configured by selecting a hard member and overlapping it with the above-mentioned soft vinyl chloride 31.In addition, as the above-mentioned white translucent member, the opaque BF3 degree is 80
~85% is the best. For example, when the opacity decreases, part of the light from the copy lamp for optically distorting the original 6 passes through the original cover 3, and the light reflected from the original cover 3 decreases.

As a result, a problem arises in that a pale black image is formed around the copied paper due to the document cover. On the other hand, if the degree of opacity is high, the document 6 set on the mounting table 2 cannot be seen through, making it impossible to confirm the set state of the document 6.

Therefore, if the opacity is 80 to 85%, the above-mentioned drawbacks can be overcome.

ε 9 Especially, the opacity of paper used for coffee paper etc. is usually 8
0 to 85%, and if the plain paper 8 is stacked as shown in FIG.
9 can be seen through 7L and power. Also, if you copy a white paper 8- over the original 6 instead of the original cover 3, you can obtain an image equivalent to that when the original cover is normally closed.
That is, if the document cover is made of a white translucent material that has the same opacity as plain paper used in ordinary copying machines,
The set original 6 can be easily checked without causing any trouble in copying.

In addition, when using the white translucent material as a document cover,
In addition to the above-mentioned opacity, it is necessary to consider conditions such as heat resistance, l1jt weatherability (yellowing prevention), and durability. Additionally, it is necessary to change the material of the white translucent material depending on the type of light source of the copying machine, but the opacity of the materials conventionally used for copying machine document covers (polyethylene terephthalate, propylene rubber, Hypalon rubber, etc.) The present invention can be easily implemented by setting the ratio to 80 to 85%.

<Effects of the Invention> According to the document cover of the present invention, the document cover is made of an opaque material, and the state in which the document is placed on the document mounting table can be confirmed after the document cover is closed, thereby preventing copy mistakes as much as possible. This also eliminates the need to close the document cover after fixing the document on the table in advance, making the loading process very simple.

In addition, by providing an index on the top of the document cover to indicate the document size and magnification status, you can check the size of the document placed when the document cover is closed, and at the same time display the image area at actual size when changing magnification. It can be confirmed from the r index, it becomes easy to select the paper and the variable magnification, and it is possible to greatly reduce copying errors.

[Brief explanation of the drawing]

FIG. 1 is a top view showing a copying machine of the present invention, FIG. 2 is a cross-sectional view thereof, FIG. 3 is an enlarged cross-sectional view showing a specific example of the structure of a document cover in the present invention, and FIG. FIG. 5, which is a diagram for explaining the operation, is a top view showing an example of the indicator on the document cover according to the present invention. 2: Original table 3: Original cover 31: White translucent member 32: Transparent film 6: Original 7: Index 70~
79: Indicator showing magnification 8: Plain paper agent Patent attorney Aihiko Fukushi (and 2 others) 2 2nd r% 6 p#4 Figure

Claims (1)

[Claims] 1. In a document cover that is provided so that the top surface of the placing table on which a copy is placed can be opened and closed, the document cover is formed of a semi-transparent member, and a finger indicating the document size, etc. is provided on the top surface of the document cover made of the semi-transparent material. 2. The document cover according to claim 1, wherein the indicator also displays an image area indicating each magnification ratio.