JPH0690390B2 - Projection device mountable on a document scanning device having a document table - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is provided with a document table that allows a copying apparatus that obtains a copied image by exposing a photoconductor to light reflected from a normal document and has a function of copying a transmission enlarged projection image of a slide film. And a projection device mountable on the original scanning device.

Conventionally, a copying apparatus capable of copying a transmission enlarged projection image of a slide film in addition to a normal original copy (hereinafter, such a copying apparatus is also referred to as a copying apparatus) is capable of copying a transmission magnification projection image of a slide film. It was very difficult to align the optical position to reach the target. Further, this will be described in detail with reference to FIGS. 1 and 2. In FIG. 1, 50 is a copying machine main body, 4 is a document table glass provided on the copying machine body 50, 108 is a Fresnel lens provided on the document table glass 4, 107 is a reflection mirror for changing the optical path, Reference numeral 101 is a projection device for enlarging and projecting the slide film. Although an optical system such as the photosensitive drum 1 and the lens 8 is arranged in the main body 50 of the copying machine as shown in FIG. 2, it is omitted in FIG. Further, in FIG. 2, 105 is a slide film, and 106 is a projection lens of the slide projection device 101.

In such a conventional dual-purpose copying apparatus, the apparatus including the reflection mirror 107 and the Fresnel lens 108 must be removed from the original table glass 4 and moved during normal reflection type original copying.

Further, at the time of magnified copying using a slide film, a reflection mirror 107 and a Fresnel lens 108 are provided on the original table glass 4 so that the optical axes of the projection lens 106 and the like of the projection device 101 and the light of the Fresnel lens 108 as shown in FIG. The optical axis of the slide film 105 is aligned with the optical axis of the copying machine main body 50, that is, the center of the slide film 105 is aligned with the optical axis of the Fresnel lens 108 and the optical axis of the lens 8. It is necessary to copy the transmission magnified projection image. Therefore,
As described above, when copying the transmission magnified projection image, the troublesome optical position adjustment is required when the reflecting mirror 107 and the Fresnel lens 108 are installed on the platen glass 4, and these are taken from the platen glass 4 when copying the reflection type document. There was a lot of trouble when removing it.

The present invention has been made to solve the above drawbacks,
The purpose is to easily perform optical alignment of a reflection mirror, a Fresnel lens, etc. during transmission magnified projection image copying, and to use these reflection mirrors and It is an object of the present invention to provide a projection device that can be mounted on a document scanning device equipped with a document table, which can store an optical system such as a Fresnel lens in a compact shape at a predetermined storage position.

As means for solving the above-mentioned drawbacks, a projection device mountable on a document scanning device equipped with a document table of the present invention is a projection device mountable at a position adjacent to a document mounting surface of the document table, Projection image receiving means having a reflection mirror for reflecting the light projected from the means toward the document placing surface, a use position where the projection image receiving means is placed on the document placing surface, and projection from the document placing surface A projection device mountable on a document scanning device provided with a document table having a projecting unit and a connecting unit connecting the projected image receiving unit so as to be movable to a retracted position retracted to the unit side. The image receiving means has a condenser lens for condensing the light reflected by the reflection mirror and projecting it onto the document placement surface, and the reflection mirror opens at a predetermined angle with respect to the condenser lens at the use position. At the retracted position, close the condenser lens It is characterized by obtaining.

In the projection apparatus mountable on the original scanning apparatus having the original table of the present invention configured as described above, the optical axis of the condenser lens is placed on the original table placement surface at a predetermined use position. The original or the projected image is aligned with the optical axis of the optical system that guides the projected image onto the photoconductor. Moreover, according to the present invention, when the projection image is copied, the reflection mirror of the projection image receiving means is set to open at a predetermined angle with respect to the condenser lens at a predetermined use position. If the axes are aligned, the optical axis of the projection device and the optical axis of the condenser lens can be made to coincide with each other without performing the optical axis alignment thereafter, and a simple projected image can be projected on the document table mounting surface. it can.

Further, when the original is placed on the original table and the original is copied, the reflection mirror of the projection image receiving means can be closed with respect to the condenser lens, so that the projection image receiving means has a compact shape and a predetermined size. It is possible to provide a projection device that can be stored in the retreat position and that is excellent in storability.

Embodiments of the dual-purpose copying apparatus according to the present invention will be described below in detail with reference to the drawings.

FIG. 3 is an explanatory diagram of an embodiment of a dual-purpose copying apparatus according to the present invention. In FIG. 3, 4 is a platen glass, 6 is an illumination lamp, 5 is a first scanning mirror, and 7 is a second scanning mirror.
Except for the platen glass, these move in the direction of the arrow in the figure to scan the document image. 8 is a lens, 9 is a third mirror, 10 is a color separation filter, 11 is a fourth mirror, and 12 is a dustproof closed glass. Reference numeral 1 denotes an electrophotographic photosensitive drum having an insulating layer on its surface, which is rotatably supported by a shaft 2 and starts to rotate in a direction of an arrow by a copy command. A static eliminator around this drum 1
14, a primary charger 15, a static eliminator 16, an entire surface exposure lamp 17, a developing device 18, a transfer charger 25, and a cleaning device 31 are arranged in this order. The developing devices 18 are yellow, magenta, and cyan developing devices 181, 182, and 183, respectively.
Further, reference numeral 13 denotes an exposure section on which a document image is formed on the drum 1 by the above optical system. 33 is a transfer drum having the gripper 24, 26 is a separating claw, 27 is a conveyor belt, 28 and 29 are fixed difference rollers for fixing, and 30 is a tray for paper discharge. 191 and 191 'are cassettes, 201 and 201' are transfer sheets, 211 and 211 'are paper feed rollers, 221 is a first register roller, and 23 is a second register roller.

Reference numeral 100 denotes a main body of the projection image receiving apparatus, which is composed of a main body upper portion 110 having a reflecting mirror 107 and a main body lower portion 111 having a Fresnel lens 108 as a condenser lens as will be described later. It is connected by 112 and can be opened and closed freely. 133 is a slide rail or an acryl rail, the projection image receiving apparatus main body 100 is provided at one end thereof.
Detachable, and the other end is the projection mounting table 1 of the projector 101.
It is fixed in 32. When copying a normal document image, the upper part 110 of the main body is rotated in the direction of the arrow around the hinge 112 as the center of rotation to align with the lower part 111 of the main body, and the closed projection image receiving device main body 100 is utilized by the rails 133 for the projection device stand. It is accommodated in 132 and is removed from the platen glass 4 (second arrangement state). In the state shown in FIG. 3, the projection image receiving apparatus main body 100 is in the open state and is on the original table glass 4 (first arrangement state), and the transmission enlarged image of the slide film can be copied.

The projection device 101 is placed on the projection device stand 132, which has a lamp 102 with a reflecting mirror, condenser lenses 103 and 104, and a projection lens 106, and projects the image of the slide film 105 onto the original platen glass 4. It is for doing. As the Fresnel lens 108, a concentric lens as shown in FIG.
As shown in FIG. 5, two cylindrical Fresnel lenses are used so that their generatrices are orthogonal to each other. In this example, the one shown in FIG. 5 was used.

FIG. 6 is a perspective view of the projection image receiving apparatus main body including the reflection mirror and Fresnel lens in FIG. 3, and FIG. 7 is a partially omitted sectional view thereof.

6 and 7, the main body 100 of the projected image receiving apparatus according to the present invention comprises an upper body 110 supporting a reflection mirror 107, a Fresnel lens 108, and an opening for guiding the projected image to the Fresnel surface and a Fresnel lens. It is mainly composed of a main body lower part 111 composed of a frame-shaped frame body having an opening for guiding the transmitted projected image to the main body of the copying machine, and both of them are provided with a hinge 112 at one end thereof, and on both sides sandwiching a mounting surface of the hinge 112. 2 stays 1
13 is a foldable device in which 13 is openably and closably connected. The two stays 113 are reflection mirrors 107 mounted on the upper part 110 of the main body.
And the Fresnel lens 108 attached to the lower part 111 of the main body keeps an angle of about 45 °, one end of which is provided on both sides of the lower part 111 of the main body, and both angle adjusting plates 116 of the same mechanism are provided. The connecting rods 114 are pivotally attached to the respective fixed pins 115 and at the other end between the two stays 113, the connecting rods 114 are provided at both ends of the connecting rod 114 on both sides of the upper part 110 of the main body, and two stays of the same mechanism are provided. It runs through both guide rails 119 of the guide plate 118.

The angle adjusting plates 116 provided on both side surfaces of the lower part 111 of the main body respectively have two long holes 116a, and the screws 116b are screwed into the screw parts of the lower part 111 of the main body through the long holes 116a. There is. Therefore, when the screw 116a is loosened, the angle adjusting plate 116 can move in the direction of the arrow shown in the figure, and the angle can be adjusted. The position of the angle adjusting plate 116 is fixed by tightening the screw 116b after adjusting the angle. 120 is a claw for locking, the upper part 110 of the main body is
When it is closed to 111, it enters the hole 120 'in the lower part 111 of the main body and the knob 122
Is locked by a known locking mechanism that slides the locking claw 120 into engagement with the L-shaped member 121. The four holes 131 are fitting holes for allowing the projection image receiving apparatus main body 100 to be detachably attached from a rail, which will be described later, as a connecting member for connecting to the projection apparatus base. Although the mounting method of the reflection mirror 107 and the Fresnel lens 108 has not been mentioned, for example, the reflection mirror 107 can be mounted on the main body upper part 110 by adhesively fixing the columnar protrusions fixed to the four corners on the main body upper part 110. It Further, the Fresnel lens 108 is placed on the opening on the lower part 111 of the main body, and a fixing plate 108 'having an opening smaller than the Fresnel lens 108 is attached to the lower part 111 of the main body with screws using screws. . Alternatively, the Fresnel lens 108 is inserted into the opening portion inside the frame having both openings and fixed with screws, and the projection at the end of this frame is fixed to the side surface of the lower part 111 of the main body with screws or the like, or The Fresnel lens 108 and the reflection mirror 107 are attached to the lower part 11 of the main body by another known method.
It may be attached to 1 or the upper part 110 of the main body.

In the state shown in FIGS. 6 and 7, the connecting rod 114 has the guide rail 119.
The reflection mirror 107 and the Fresnel lens 108 are held at about 45 ° by fitting at the fitting portion 119a at one end of the main body 110. As you pull it down along the
This adjustment of the knob causes the 120 to engage with the L-shaped member 121 on the side of the lower portion 111 of the main body, and is folded and folded in the shape of a heavy box.

FIG. 8 shows a state in which the projection device and the projection image receiving device main body are connected. The two connecting members 133 on both sides are 133a and 133, respectively.
b, 133c is a three-stage accuride rail composed of three members. Two rails 133c on both sides are fixed to a projection device base 132 on which the projection device 101 is mounted, and two rails on both sides are used.
The projection image receiving apparatus main body 100 is detachably attached to two rails 133a that are respectively connected to both rails 133c via a book rail 133b. There is a known locking mechanism (not shown) between the respective members of the connecting member 133. When the projection image receiving apparatus main body 100 is extended from the projection apparatus 101 side, it is always locked with the original table glass 4 and an absolute position, The projection image receiving device body 100 is positioned.

Then, as shown in FIG. 3, FIG. 6 and FIG. 7, the locking mechanism that integrates the upper body 110 and the lower body 111 of the projection image receiving apparatus 100 is released by operating the knob 122. When the upper part of the main body is raised and opened to the state shown in FIGS. 3 and 6, the optical axes of the projection device 101, the Fresnel lens 108, and the copying machine main body 50 are aligned as shown in FIG. To the first arrangement state.

When copying a normal manuscript, the state shown in FIG.
In order to bring it to the arranged state, the locking of the connecting member 133 is released, the projection image receiving apparatus main body 100 is slid to the projection apparatus 101 side, and the projection image receiving apparatus main body 100 is housed in the space inside the projection apparatus base 132.

The connecting / disconnecting portion between the connecting member 133 and the lower part 111 of the main body of the projection image receiving apparatus 100 is partially shown in FIG.
The pin 130 fixed to the above is fitted into the engaging groove 131 of the lower portion 111 of the main body.

In addition, as shown in FIG.
25 is pivotally attached to the pin 124, and falls into a guide groove 126 provided in the copying machine main body 50 so that the projection image receiving apparatus main body 100 is supported along with the expansion and contraction of the connecting member 133 so as to move along the guide groove 126. Is also good. In this case, a recess is provided in the guide groove 126 and the roller 125
Alternatively, the projection image receiving apparatus main body 100 may be positioned by pushing it into a recess (not shown).

FIG. 11 shows the locking mechanism at the time of storage, and is a fragmentary perspective view of the portion A in FIG. One end of the rail 133c is closed in a bag shape as shown in the figure, and is configured to be closed by a holding plate 137 while the two compression coils 136 are compressed by the spring receiver 135. Reference numeral 140 denotes a slide claw main body, which has a slide claw 140 and a long hole 142 'and is fixed to a projection device base 132 by a spring hook 14
Two springs 141, one end of which is hooked at 3, are biased in the direction opposite to the arrow shown. Further, pins 142 fixed to the projection device base 132 through both long holes 142 'are provided, respectively, and further provided on a slide claw main body 140' projecting outside through an opening (not shown) of the projection device base 132. There is a knob 144, which allows the sliding claw 140 to move in the direction of the arrow in the figure or in the opposite direction. Reference numeral 134 denotes a bar, which is supported from both sides by rails 133a and locked by sliding claws 140.

Further, as shown in FIG. 12, the projection device 101 has three legs 1
There are 51, and each foot 151 falls into the positioning hole 152 of the projection device base 132 and is positioned. Also each foot 151
The male screw portion 151a is screwed into the female screw portion 101a of the projection device 101, and the projection device is changed by changing the screwing amount.
The height of 101 is adjusted.

Next, the operation of an embodiment of the dual-purpose copying apparatus according to the present invention will be described with reference to FIGS. 3 and 5 to 12. As shown in FIG. 8, the projection image receiving device main body 100 is projected from the projection device stand 132.
Is pulled out to a predetermined position on the platen glass 4, that is, a position of the first arrangement state, and locked as described above. The operation of pulling out the projection image receiving apparatus body 100 will be described later. When the projection image receiving apparatus main body 100 is positioned at the position of the first arrangement state as described above, the optical axis of the Fresnel lens 108 is substantially aligned with the optical axis of the lens 8 via the first scanning and second scanning mirrors 5 and 7. Can be combined.

7 and 8 respectively show a closed state when the apparatus is not used and an open state when the apparatus is used.

Next, the locking claw 120 of the locking mechanism that suppresses the rotation of the upper main body 110 with respect to the lower main body 111 is released by sliding the knob 122, and the upper main body 110 is rotated about the hinge 112. The connecting rod 114 in FIG. 6 is the slide portion 11 of the guide rail 119.
9b is moved in the direction of the arrow shown in FIG. With this movement, the stay 113 starts to rotate around the pin 115, and when the stay reaches a certain angle, the rotation is stopped and the connecting rod 114 is guided by the guide rail 1.
It is fitted into the fitting portion 119a of 19 and reaches the first arrangement state of FIGS. 3, 6, and 7.

At this time, the angle formed by the reflection mirror 107 and the Fresnel lens 108 is held at an inclination of about 45 °. This angle is stay 11
It changes according to the position of pin 115, which is the center of rotation of pin 3,
The angle adjusting plate 116 fixing the 5 can be adjustably fixed to the lower portion 111 of the main body in the elongated hole portion 116a, and even if there is variation between the parts, it can always be set to a relationship of about 45 °.

As shown in FIG. 6 and FIG. 7, the projection image receiving apparatus main body 100 in the open state is provided on the original table glass 4 of the copying machine main body 50, and the first arrangement capable of transmission type enlarged projection copying is provided. Put in a state.

After that, the projector 102 installed on the main body causes the lamp 102 with a reflector to project an enlarged image of the slide film 105 by the condenser lenses 103 and 104 as shown in FIGS. 3 and 7. The magnified projection image of the slide film 105 is reflected downward by the mirror 107 and the Fresnel lens 108.
An image is formed on the upper surface of the platen glass 4 via. The Fresnel lens 108 is for converging the divergent light flux transmitted through the projection lens 106 toward the lens 8 on the main body side as shown in FIG. At this time, as shown in FIG.
It is good if the optical axes match, but if the optical axes do not match,
Each foot 151 of the projection device 101 as described above in FIG.
Is adjusted to adjust the height and the like of the projection apparatus 101 to align the optical axis. In the case of the present invention, in general, even if the projection image receiving apparatus main body 100 is repeatedly opened and closed, the reflection mirror 107
Since the reproducibility of the position of the lens and the Fresnel lens 108 is good, the position adjustment of the angle adjusting plate 116 is unnecessary in most cases after the initial adjustment.

The drum 1 starts rotating about the shaft 2 in the direction of the arrow. When the drum 1 is rotated to a fixed position, the enlarged projection image of the slide film 105 formed on the platen glass 4 is illuminated by an illumination lamp 6 which is integrated with the first scanning mirror 5 to soften the contrast. The transmitted light of the enlarged projection image is scanned by the first scanning mirror 5 and the second scanning mirror 7. Since the first scanning mirror 5 and the second scanning mirror 7 move at a speed ratio of 1: 1/2, the transmission magnified projection image is maintained while the optical path length between the surface of the platen glass 4 and the lens 8 is always kept constant. The scan is performed. The transmitted light image is the lens 8 third
After passing through the mirror 9, color separation is performed by the color separation filter 10,
Further, through the fourth mirror 11 and the dustproof closed glass 12, the exposure unit 13
Then, an image is formed on the drum 1.

The drum 1 is neutralized by the static eliminator 14 and then charged (for example, plus) by the primary charger 15, and then the image formed by the projection device 101 and exposed by the illumination lamp 6 is slit-exposed in the exposure unit 13. It At the same time, static electricity having a polarity opposite to that of AC or primary (for example, negative) is removed by the static eliminator 16, and then full exposure is performed by the full exposure lamp 17 to form a high-contrast electrostatic latent image on the drum 1.

The electrostatic latent image on the photosensitive drum 1 is then visualized as a toner image by the developing device 18. The developing device 18 is a yellow developing device 18.
1, a magenta developing unit 182, and a cyan developing unit 183, which are three developing units, and a developing unit designated corresponding to the color separation filter used for exposure works to obtain a toner image of a required color. .

The transfer paper 201 in the cassette 191 is fed into the machine by the paper feed roller 211, the first register roller 221 takes a rough timing, and then the second register roller 23 takes an accurate timing, and the leading edge It is gripped by the gripper 24 of the transfer drum 33. As the transfer drum 33 rotates, the drum 33
Transfer charger 25 and photosensitive drum 1 are transported while being wound around
The toner image on the photosensitive drum 1 is transferred onto the transfer paper 201 while passing through the transfer paper 201. The transfer drum 33 rotates by the required number of rotations while holding the front end of the transfer paper 201 by the gripper 24, and the image of the required number of colors is transferred by scanning the document image the required number of times.

The copying machine shown in the figure is one in which two cassettes loaded with transfer papers of different sizes and the like are mounted and those papers are switched and fed.

After the transfer is completed, the transfer paper is released from the gripper 24 and
It is guided to the conveyor belt 27 by 26, and the fixing roller pair 28,2
It is guided to 9 and fixed by pressure and heating, then tray 30
Is discharged to. The surface of the photosensitive drum 1 after transfer is cleaned by a cleaning device 31 composed of an elastic plate,
It is going to proceed to the next cycle.

Next, when not copying an ordinary document, the main body 100 of the projected image receiving apparatus is changed from the open state shown in FIGS. 3 and 6 to the closed state shown in FIG.

Since this operation is the reverse of the operation when the projection image receiving apparatus main body 100 is changed from the closed state to the open state as described above, its explanation is omitted because it is obvious.

Next, when the projection image receiving apparatus main body 100 in the closed state shown in FIG. 8 is pushed into the projection apparatus base 132, the rail 133a on which the projection image receiving apparatus main body 100 is placed compresses the spring 136 as shown in FIG. While pushing in the spring receiver 135, rails 133a on both sides
The bar 134 connected to is hooked on the slide type claw 140 and locked. The slide claw 140 is swingably attached to the projection device base 132 by a pin 142, and a force is applied by a spring 141 in a direction in which the slide claw 140 and the bar 134 approach each other. In this way, the position of the projection image receiving apparatus main body 100 removed from the original platen glass 4 is in the second arrangement state in which the reflection type original copy is possible.

Next, a document (not shown) is placed on the platen glass 4, and after the copy command, the photosensitive drum 1 rotates about the shaft 2 as a rotation center, and at some point, the first mirror 5 and the second mirror 7 are shown. It moves in the direction of the arrow together with the illumination lamp 6 to scan the document image illuminated by the illumination lamp 6. Thereafter, a cycle similar to the above-described copying cycle of the transmission type enlarged projection image is performed, and a color copy can be obtained from a normal original.

Next, in order to set the projection image receiving apparatus main body 100 in the second arrangement state to the first arrangement state capable of copying the transmission enlarged projection image,
In FIG. 11, in this state, the knob 144 fixed to the sliding claw 140 and protruding to the outside of the projection device base 132 is attached to the spring 14
When the slide type claw 140 and the bar 135 are disengaged by sliding in the direction of the arrow against the force of 1, the spring 136
The restoring force of the rail 133a causes the rail 133a to swing out together with the projection image receiving apparatus main body 100 from the inside of the projection apparatus base 132. Depending on the setting of the spring 136, the restoring force of the spring 136 causes the projection image receiving apparatus main body 100 to move to the first position when copying the transmission type enlarged projection image.
It is also possible to swing the lock to the position of the arranged state.

In particular, as shown in FIG. 10, if the roller 125 is provided in the lower part 111 of the main body of the projected image receiving apparatus 100, the roller 125 can be guided by the guide groove 126 together with the projected image receiving apparatus main body 100 and the rail 133a with a smaller force. It is preferable that the vehicle moves along the path of (1) to reach the position of the first arrangement state from the second arrangement state. In addition,
When the projection image receiving device main body 100 reaches the position of the first arrangement state, the positioning lock is performed as described above.

Further, in addition to the above-described method for positioning the projection image receiving apparatus main body 100 at the position of the first arrangement state, a stopper is provided in the copying machine main body, and the projection image receiving apparatus main body 100 contacts this stopper. Or move to position
Alternatively, another set of mechanisms as shown in FIG. 11 may be provided on the copying machine main body side, and the projection image receiving apparatus main body 100 may be moved and locked to the position in the first arrangement state for positioning.

Further, a hole is provided in the copying machine main body, and a pin biased by a spring is provided in the projection image receiving apparatus main body 100 at a position corresponding to this position, and this pin just falls into the hole of the copying machine main body. When locked, the positioning of the position in the first arrangement state may be performed. Of course, the pin has a handle, and if the pin is lifted by the hand against the force of the spring, the pin moves upward and is released from the hole of the copying machine body.

Further, the projection image receiving device may not be opened and closed but may be fixed in an open state. At this time, the hinge is unnecessary.

When repairing or adjusting the angle of the main body of the projected image receiving apparatus, the main body 100 of the projected image receiving apparatus may be removed from the rail 133a by the mechanism shown in FIG.

Further, it goes without saying that a linear bearing slide device using a ball bearing having a locking mechanism can be used instead of the angle adjusting plate 116 and the stay guide plate 118 of the projection image receiving device main body 100 shown in FIG. .

Further, in the above embodiment, the color copying machine was used as the copying machine main body, but it goes without saying that a black and white copying machine capable of ordinary black and white copying can also be used.

The effects of the present invention are as follows.

(1) Since the projection device and the projection image receiving device including the reflection mirror and the Fresnel lens are integrated, once the optical adjustment such as optical axis alignment is performed, the relationship is not lost. There is no need to make optical adjustments every time a transmission enlarged projection image such as a slide film is copied.

(2) With simple operation, the devices dispersed with the projection distance
Can be stored compactly in one place.

[Brief description of drawings]

1 and 2 are explanatory views for explaining a conventional dual-purpose copying apparatus, FIG. 3 is a schematic partial sectional view of a dual-purpose copying apparatus according to the present invention, and FIGS. 4 and 5 show a condenser lens. FIG. 6 is a schematic fragmentary perspective view of a projection image receiving apparatus main body of a dual-purpose copying apparatus according to the present invention, and FIG. 7 is a partial simplified sectional view of FIG.
FIG. 8 is a perspective view of the projection image apparatus main body and the projection apparatus of the dual-purpose copying apparatus according to the present invention, FIG. 9 is a partial sectional view of the attachment / detachment portion of the rail and the projection image receiving apparatus main body, and FIG. FIG. 11 is a sectional partial view of a guide portion of the image receiving apparatus main body, FIG. 11 is a perspective view of a portion A of FIG. 8, and FIG. 12 is a sectional partial view of the projection apparatus. 1 is a photosensitive drum, 4 is a platen glass, 100 is a main body of a projected image receiving device, 101 is a projection device, 105 is a slide film, 10
7 is a reflection mirror, 108 is a Fresnel lens, 132 is a projection device stand, 133 is a rail

Claims (1)

[Claims] 1. A projection image receiving image provided with a projecting means that can be placed at a position adjacent to a document placing surface of a document table, and a reflecting mirror that reflects the light projected from the projecting means toward the document placing surface. The means and the projection image receiving means are connected so that the use position where the projection image receiving means is placed on the document placing surface and the retracted position where the projection image receiving means is retracted from the document placing surface to the projection means side can be moved. In a projection device mountable on a document scanning device provided with a document table having a connecting means, the projection image receiving means collects the light reflected by the reflection mirror and projects it on the document mounting surface. A document table having a condenser lens, wherein the reflection mirror can be opened at a predetermined angle with respect to the condenser lens at a use position and can be closed at the retracted position with respect to the condenser lens. A projection device that can be placed on a document scanning device.