JPS60212753A - Original set position confirming device of copying machine - Google Patents

Abstract

PURPOSE:To confirm the position of an original prior to copying by constituting a titled device so that the original placed inside out on a platen glass and also covered with an original cover can be seen from the surface side on which a character, picture, etc. are written. CONSTITUTION:When seeing the set position of an original placed on a platen glass 11, first of all, the fourth mirror 17 is turned to a position of 17' by a means not shown in the figure. Subsequently, by driving a motor for driving an optical scanner not shown in the figure, the first- the third movable mirrors 13- 15 are stopped at a full line position in the figure. As a result, a light emitted from an orignal illuminating lamp which is not shown in the figure is irradiated to the vicinity of a reference end 10A of an original 10 placed on the platen glass 11. A reflected light obtained by this irradiation advances in the direction as indicated with an arrow (b), and thereafter, it is reflected in the direction as indicated with an arrow (d) by the mirror 17'. In such a way, an operator can see a placed state of the reference end 10A of the original 10 by placing his eyes on the upper part of a confirming frosted glass 20.

Description

[Detailed Description of the Invention] (Field of Application) The present invention relates to a device for confirming the position of a document set in a copying machine, and in particular, the present invention relates to a device for confirming the position of a document set in a copying machine. visible from the side)
The present invention relates to a device for confirming the position of a document set in a copying machine.

(Prior Art) Generally, in a copying machine, a document is placed face down on a platen glass during copying, and then an opaque document cover is placed over the platen glass and the document. The document cover presses the document against the platen glass with an appropriate force, and at the same time prevents light emitted from the exposure lamp from leaking in areas outside the document.

The document must be positioned at a predetermined location on the platen glass, and this positioning is accomplished by placing one end of the document at the reference end of a positioning plate, generally called a registration guide.
This is done by matching the W (half-length).

The register guide has an elongated plate-like body C arranged at a predetermined end of the platen glass so as to have a step on the surface of the platen glass, and the surface has, for example, an A3 plate. ,A4. (Respectively, rA3J,
rA4j. An index such as r[34J is formed.

Therefore, by butting the original against a predetermined edge of the registration guide and aligning the edge of the original with the index of the registration guide, the predetermined {Q. A copy image can be obtained on tilt.

In the conventional copying machine having the above configuration, the original 7
As the J bar is rapidly exposed to the platen glass J7 and the original, due to the influence of the pressure of the cover, etc.
The original may shift from its predetermined position on the platen glass.

This tendency is particularly strong in the case of thin manuscripts, and in cases where the entire manuscript or part of the manuscript is curved or creased.

However, in any case, it is important for A-pereque of the copying machine to know how much force he should use to operate the document saw bar to ensure that the document does not shift, and also to ensure that the document does not shift after covering with the document cover. There is absolutely no way to know whether or not it was placed in a predetermined position on the bluff glass without a trace.

In other words, it is only by obtaining a copy that one can know whether the manuscript is in the correct position or not.

Therefore, in conventional copying machines, the /l
This often results in identical copies, which wastes recording paper and also reduces the power and power supplied to the copier.
It has the disadvantage of wasting words such as ~na.

Another disadvantage is that it takes time to obtain a good copy and is inefficient.

(Purpose) The present invention was made in order to eliminate the above-mentioned vacancy, and its purpose is to provide a copying machine that can confirm the position of the original placed on the platen glass 1- before copying. The purpose of the present invention is to provide a device for confirming the position of a document.

1) In order to achieve the above object, the present invention provides means for rotating a mirror by a predetermined angle for directing the document repulsion light focused by a lens toward a photoreceptor; An original projection plate for projecting the original reflected light directed by the rotated mirror, and an index of the registration guide 1 arranged at a predetermined position on the platen glass to the original image projected onto the original projection plate.・It is characterized by the fact that it is constructed by means of responding.

（゛）Goj4岨1し雫） The present invention will now be described in detail with reference to the drawings.

FIG. 1 is a side view of N12I of one embodiment of the Kibenmei.

In the figure, the original 10 you wish to copy is located at the register guide 1.
2 to IILIL, and place it on the platen glass 11. lNj Us Near the bottom surface of the platen glass 11 t, m
1, commonly known as i, is integrally constructed with the first JI moving mirror 13.l+:i m An illumination lamp (not shown) is provided.

The light emitted from the illumination lamp is the original 11i.
The light reflected from the document surface is reflected by the first movable mirror 13, the second i'iJ movable mirror 14, and the third movable mirror 15, passes through the lens 16 in the direction of the arrow, and is reflected from the document surface. The light is reflected by the four mirrors 17 in the direction of arrow C, and an image is formed on the photosensitive drum 18.

During copying, the fourth mirror 17 is at the position indicated by the solid line in the figure, but when checking the original (*11), it is rotated to the position indicated by the dotted line in the figure, mirror 17'. When the mirror 17 is rotated as described above,
The light reflected from the document surface passing through the lens 16 is directed in the direction of arrow d, and ! The image is projected onto the T recognition screen 20.

In order to perform the projection well, the distance from the fourth mirror 17 to the confirmation frosted glass 2o is
The distance is set to be equal to the distance from the surface of the photosensitive drum 18 to the surface of the photoreceptor drum 18.

As a means for rotating the fourth mirror 17, a number 31, a solenoid, etc. can be used.

As is well known, the copying star 1 has a first movable mirror 1.
3. Second movable mirror 14 and third uJ movable mirror 15
is located at the solid line position in the figure. As the copying progresses, the first i
The i1 movable mirror 13, the second movable mirror 14J3, and the third movable mirror 15 are scanned in the direction of arrow a.

ko0) 11. ``Lff!1i'+J moving mirror 7-13 c.The second and third movable mirrors 1/1 and 15 move at twice the speed.When copying one sheet of original is finished, each of the mirrors 13, 14.1-te 1r respectively come to the positions of mirrors 13', 14' and 15' indicated by dotted lines in the figure.

'; A2 Figures cl and i and Figure 3 are plan views of the confirmation Liliglass 20 in J5 in Figure 1.

In the figure, the confirmation ground glass 20 includes a base line 20A and an original IE 14 for indicating the correct position of the original 10.
rA3'J corresponding to J size or recording paper size,
Indices such as rΔ4J and rB4J are formed.

The FJ12OA is located at exactly the same position as the position where the reflected light from the reference end of the registration guide 12 for positioning the original 10 is reflected in the directions of arrows [11b and dn and projected onto the confirmation ground glass 20. is formed.

Furthermore, the index formed on the front 2 confirmation frosted glass 20 also corresponds to the index formed on the register guide 12.
7B c).

Now, in the apparatus of this embodiment which is opened as described above, when looking at the position where the original is set on the platen glass 11, first the fourth mirror 17 is moved to the (CI position) of 17' by means not shown. Rotate to.

Then, the first, second, J, and 31st moving mirrors 13 are driven by a driver (not shown) for driving the optical scanning device.
, 14 and 15 are stopped at the solid line position in FIG. Then, the lamp I9 is emitted from the document illumination lamp (not shown).
- The light is applied to the vicinity of the reference 110A of the document 10 on which the platen is placed on the lath 11.

The reflected light obtained by this irradiation travels in the direction of the arrow b7j, as described above, and is then reflected by the mirror 17' in the direction of the arrow d. Therefore, the operator
If one looks above the ground glass 20 for identification, one can see the arrangement of the reference end 10Δ of the original m 10.

For example, an image 30A of the reference edge 10A of the document 10 as shown by diagonal lines in FIG. 2 can be seen.

In FIG. 2, the elephant 30 of the manuscript 10 is depicted as a human figure of "A3" size 9. In the figure, rG is the reference edge 30 of the elephant 30 corresponding to the document edge 10A of the document 10.
Since point A is far from the base line 2OA, it can be seen that the document 10 is not placed in the correct position.

Therefore, in such a case, the position of the original 10 is corrected by raising the original J bar (not shown). SoshiC
1. Look again through the ground glass 20 for confirmation, and as shown in FIG.
It can be seen that Citt <, C, Ba (if 10 was swung to the correct position on the platen glass 11.

In addition, the following confirmation method is also possible so that the motor for driving the optical scanning device is operated regardless of the -1 pulse operation. That is, when the document illumination lamp J3J and the optical system are moved in the direction of arrow a in FIG.
The image 30 of the original 10 shown in parentheses also moves in the direction of the arrow a-1.

Therefore, despite the movement of the image 30, f, the 1g
! iJ parallel to the traveling direction of 30 (arrow a-1 direction),
(If the side edge of the brass 30 matches the mark "A3" formed on the confirmation number glass 20, it is confirmed that the position of the IYJ manuscript 10 is accurate.

In particular, the cutting gIi of the tip of the reference end 10A! lIl is Hara KG
If the side edge of the document 10 is not perpendicular to the side edge of the document 10, it is not possible to accurately detect the layout position of the document 10 by simply checking the position of the reference edge 10A. becomes important.

By performing the above operations, the operator can:
Before copying, it is possible to easily check the ILL darkness of the document covered with the document cover.

In the above embodiment, the indicators such as "baseline 2OA, J3 and rA3J, rΔ4J, rB4" are formed on the confirmation J glass 20, but the invention is not limited to this. In, Regigai! Of course, it may be formed on the back surface of 12.

8L and 20 are described as being made of frosted glass, but the present invention is not limited thereto, and may be made of translucent plastic or the like.

Furthermore, although it has been described that a document illumination lamp for forming an electrostatic image is used as a light source for forming an image of the document 10 on the confirmation viewing glass 20, the luminous intensity of the document illumination lamp is large. If it is too thick, it is time to form the edge of the document 10 on the confirmation frosted glass 20 ().
It may be combined to lower the supply capacity, or
A low-luminance lamp may be provided separately from the lamp for illumination.

In addition, when confirming the position of the document 10, the energization of the illumination lamps and the scanning of the - set of ijJ moving mirrors are performed on the machine as described above. Although this operation is completely different from the Jp operation, the means for independently operating the energizing and scanning operations can be easily implemented using known techniques, so a detailed explanation will be omitted. .

Since the present invention allows viewing not only the contour shape of the original but also the image of the original, it is obvious that b can be applied to positioning when it is desired to copy only 161S of the original.

In addition, the fourth mirror 17 is rotated #J7iJ function 4111
Even if this is not done, if the fourth mirror 17 is made of a semi-transparent material, it is possible to obtain an original image on the frosted glass 20J-. In other words, it is formed of a translucent substance and Iζ
The fourth mirror 17 can transmit a part of the light reflected from the document surface without directing it to the photosensitive drum 18 . Therefore, it is sufficient to adopt a configuration in which the transmitted light reflected from the document surface is directed toward the checking glass 20 by providing a separate mirror.

(Effect! 4) According to the present invention, the
Furthermore, since you can see the original covered with the original cover from the front side where the pictures, etc. are located (of course from inside the copying machine), you can check the position of the original before copying. I can row. Therefore, (1) since the original image is reproduced without obtaining a contentious copy, it is possible to save on recording paper, henna, and power consumption of the copying machine; (2) Furthermore, it is possible to know M'J about one hour of copying.
This has a big effect.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of one embodiment of Kikomei, and FIGS. 2 and 3 are plan views of the confirmation cover glass in FIG. 1. DESCRIPTION OF SYMBOLS 10... Original, 10A... Reference end, 11... Platen glass, 12... Registration guide, 13... First
uJ #I mirror, 14...Second movable mirror, 15.
...3rd j sliding mirror, 16...lens, 17...
Fourth mirror, 18...photosensitive drum, 20...Mi
1 ligance for recognition 2OA...Baseline, 30...Image, 3
0A... Akijun's representative patent attorney Hiraki Ogami and 1 other person

Claims (1)

[Claims] (1) A set of movable mirrors that reflect reflected light from a document placed on a platen glass that holds the register guide to the right;
Confirming the position of a document in a copying machine equipped with a lens for converging the light reflected by the movable mirror and a rotary mirror for directing the light reflected by the lens toward a photoreceptor. The apparatus includes a document illumination lamp for illuminating the document, a means for rotating the rotary mirror by a predetermined angle, and directing the reflected light of the ffA document in a direction different from that of the photoreceptor. An original projection plate is oriented in a direction different from that of the photoreceptor and is placed at a position where it intersects with the original reflected light, and an index of a register guide placed at a predetermined position on the platen glass is projected onto the original projection plate. and a means for making the image correspond to the original image, and a distance from the rotary mirror to the original (11 projection numbers) is equal to a distance from the rotary mirror to the photoreceptor. Ijt gllet position confirmation device. (2) The document illumination lamp is a document illumination lamp for forming an electrostatic latent image of the copier. (3) Means for matching the index of the register guide, a base line J5 formed on the document projection plate, and a σ finger 447.
[Claim 1] The document projection plate of a copying machine according to claim 1 or (2) is characterized by the fact that: Claims 11f4 to 3rd characterized in that
2. A device for confirming the position of a document flap in a copying machine according to any one of Items 1 and 2. (5) The original UAt of the copying machine according to any one of Patent Scope No. 11 to No. 4, characterized in that the original projection plate is disposed near the platen glass. spot location confirmation device.