JPS625286A - Image forming device - Google Patents

Abstract

PURPOSE:To copy both the information on a displaying part and a usual original by separately providing the displaying part and a copying part without unifying them and obtaining two positions to the copying part by the displaying part. CONSTITUTION:The device is composed of a displaying part 1, a copying part 2 and a supporting part 3. The displaying part 1 whose both side edges are supported by internal rails 5a, and 5b, is guided in external rails 4a and 4b by the driving means having the control circuit and can slide in the up and down directions. The first position of the displaying part 1 is the one when the character, graphic, etc., drawn on a board sheet 7 are copied t the copying part 2, and the second position is the one when the usual original is copied at the copying part 2 in the direction higher than the first position. The displaying part 1 is equipped with the optical system composed of a fluorescent lamp, a mirror, a projecting lens, etc., and when the information written in the sheet 7 is copied by the copying part 2 at the first position, a board sheet 7 is wound by the winding roller, scanned by the light of the fluorescent lamp, the reflecting light from the sheet 7 is irradiated on the photosensitive body in the copying part 2 and radiation is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an image forming apparatus capable of copying characters, figures, etc. drawn on a display member such as a blackboard that can be written and erased.

[Traditional technique]

Conventionally, the image forming apparatus as described above integrates a display section having the display member as described above and a copying section equipped with a photoreceptor, a developing device, etc. It is known that a character or figure, etc., is reduced in size and projected onto a photoreceptor using an optical system, and then copied using a series of electrophotographic processes.

[Problems with conventional technology]

In conventional image forming apparatuses, the display section and the copying section are integrated as described above. Therefore, while using expensive electrophotographic processes.

Only the information drawn on the display member can be copied.

It was impossible to copy normal manuscripts.

[Purpose of the invention]

The present invention provides an image forming apparatus that is capable of copying both information on a display member and a normal original, and in which the display member can be moved to a position that does not interfere with the copying operation when copying a normal original. The purpose is to provide.

[Key points of the invention]

In order to achieve the above object, the present invention provides an image forming apparatus comprising a display section having a writing and erasable display member, and a copying section for copying information written on the display member. but.

a first part capable of copying the information by the copying unit;
and a second position which is above the first position and allows the copying unit to copy a document.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to one drawing.

1 to 5 show the external appearance of an image forming apparatus according to an embodiment of the present invention. This device is composed of a board section 1, a copy section 2, and a support section 3. Here, the support part 3 includes vertically elongated hollow external rails 4a and 4b, hollow internal rails 5a and 5b that are guided inside the external rails 4a and 4b and are slidable in the vertical direction. A mounting table 6 for mounting the section 2 is provided. The board portion 1 is supported at both ends thereof by internal rails 5a and 5b.

It can be moved in the vertical direction by a moving means as will be described later, and can be moved between a first position shown in FIGS. 3 to 5 and a second position shown in FIGS. 1 and 2 above the first position. It can take the position of Here, the first position is a position when characters, figures, etc. drawn on the board sheet 7 are copied by the copying section 2 (hereinafter referred to as board copying), and the second position is 9 A normal manuscript is copied using the copying section 2 (hereinafter referred to as "copying").

This is the position when copying an original.

Next, the board section 1 will be explained in more detail.

FIG. 6 is a sectional view taken along the line AA of the board section 1 shown in FIG. Here, as means for winding up the sheet-like board sheet 7, a winding roller 8°, a rewinding roller 9, and feed rollers 10a to 10d are provided. How to wind up board sheet 7.

The board sheet 7 wound in large numbers around the rewind roller 9 is wound up onto the take-up roller 8 via the feed rollers 10a to 10d. It will be done. The board sheet 7 forms a plane portion 7a between the feed roller 10c and the feed roller 10d. A hard planar backup board 11 is arranged inside the planar portion 7a.
When writing to a, writing is facilitated by supporting the flat portion 7a from the inside.

The board section 1 also includes a fluorescent lamp 12. It has an optical system composed of a first mirror 13, a second mirror 14, and a projection lens 15. Plane portion 7a of board sheet 7
When attempting to copy characters written on a board in the copying section 2, the board sheet 7 is wound up by the take-up roller 8, and a fluorescent light 12 is passed over the board sheet 7 moving between the two feed rollers 10a and 10b. scan with light. The optical path of the reflected light L1 from the board sheet 7 at this time is shown in FIG. The reflected light L1 is bent by 90 degrees by a first mirror 13 arranged at an angle of 45 degrees with respect to the reflected light L1,
The light is further bent downward by 90 degrees by the second mirror 14 and irradiated onto the photosensitive surface 16a of the photosensitive drum 16 in the copying section 2 via the lens 15.

Next, the copying section 2 will be explained in more detail.

FIG. 8 is a schematic diagram of the inside of the copying section 2. As shown in FIG. Original table 1
Reference numeral 7 is composed of a document glass 17a, a document cover 17b, etc., and the board section 1 is in the second position described above (see FIGS. 1 and 2).
by taking the position shown).

An original (not shown) placed on the original glass 17a can be copied. When copying an original, the original is irradiated with one day's light from the light source through the exposure opening 25 for copying the original;
The reflected light L2 from the original is transmitted to the first mirror 19. The light is irradiated onto the photosensitive surface 16a of the photosensitive drum 16 via the projection lens 20 and the second mirror 21. The developer 22. Transfer device 23. Copying of the original is completed via the fixing device 24 and the like.

Also, on the top surface of the copying section 2, there is a board for copying.

An exposure opening 26 is provided for introducing the reflected light L1 emitted from the board section 1 at the above-described first position (positions shown in FIGS. 3 to 5). A shutter 27 is provided below the exposure opening 26 to prevent external light from entering the copying section 2 during copying of an original. The lens 20 and the shutter 27 are each movable to the position shown by the solid line when copying an original, and to the position shown by the dotted line where they do not block the reflected light L1 when copying onto a board. Further, the document table 17 moves at a constant speed in the left and right direction when copying a document, but it is stopped at a position where it does not block the reflected light L1 during board copying. Therefore, when performing board copying, the reflected light L1 from the board section 1 is irradiated onto the photosensitive surface 16a of the photosensitive drum 16 through the exposure aperture 26. and,
Similar to original copying, the copying is completed using known electrophotographic processes. As shown in FIGS. 2 and 4, a light shielding member 28 is provided at the bottom of the board portion 1 so as to surround the optical path of the reflected light L1, and a brush 28a is provided around the lower end of the light shielding member 28. ing. This brush 28a contacts the top surface of the copying section 2 and covers the area around the exposure opening 26 when the board section 1 is in the first position, thereby preventing light leakage and the influence of external light during board copying. I've lost it.

Next, it was provided on the support part 3. A moving means for moving the board section 1 in the vertical direction will be explained.

FIG. 9 is a partial BB sectional view of the support portion 3 shown in FIG. 2. Here, the inner rail 5a.

Threaded portions 29a and 29b, which are internally threaded in the vertical direction, are fixedly provided at the inner lower end of 5b. external rail 4a,
Bearings 30-a+30b are fixedly installed in the lower part of the inside of 4b.
Longitudinal rotating shafts 31a, 3 with male threads in the vertical direction
The lower end of 1b is pivotally supported. Note that one rotating shaft 31a
has a right-hand thread, and the other rotating shaft 31b has a left-hand thread. These rotating shafts 31a, 31. Threaded portions 29a and 29b are screwed into b to form a one-rotation shaft 31a.

31b causes the internal rails 5a, 5b to rise or fall via the threaded portions 29a, 29b. Hollow horizontal part 3 provided between two external rails 4a, 4b
A motor 33 is fixedly installed inside 2. The motor shaft 34 is connected to the external rail 4 via bearings 35a and 35b.
It extends to the inside of a and 4b. Bevel gears 36a and 36b are fixed to both ends of the motor shaft 34, and the rotation shaft 3
1a.

They mesh with bevel gears 37a and 37b fixed to 31b, respectively. The rotation of the motor 33 is transmitted to the rotating shafts 31a, 31b in the right angle direction via these bevel gears 36a, 36b, 37a, 37b. In FIG. 9, when looking at the motor shaft 34 from the direction of arrow C, the motor shaft 34
When 4 rotates clockwise, the inner rails 5a and 5b rise, and when 9 rotates counterclockwise, the inner rails 5a and 5b lower.

Next, a control means for vertically moving the board section 1 supported by the internal rails 5a and 5b will be explained.

As shown in FIG. 1, a board operating section 38 is provided on the front surface of the board section 1, including a descending instruction switch 38a for instructing to start lowering the board section 1, and a rising instruction switch 38b for instructing to start ascending the board section 1. etc. are arranged. A document cover switch 39 is provided on the document table 17 and is turned on when the document cover 17b is closed. Also, the 9th
As shown in the figure, a limit switch 40 is fixed inside and below the outer rail 4a. This limit switch 40 operates when the board section 1 is in the first position (the position shown in FIG. 3 or 4) where board copying is possible.
It is provided at a position where it is turned on by the lower end of the threaded portion 29a. As a safety measure, on the outside of the external rails 5b, 5a,
An infrared light emitter 41 and a sensor 42 for receiving the infrared light are arranged facing each other. As shown in FIG. 5, the infrared emitter 41 and the sensor 42 are arranged at the position when the board section 1 is lowered to the first position (i.e., when the limit switch 40 is turned on by the internal rail 5a). ) is set at a position where the input light to the sensor 42 is blocked by the lower end of the board section 1, or at a position slightly above that.

Figure 10 shows the control system for controlling the above vertical movement.
.

Shows the circuit.

Here, signals from the above-mentioned lower command switch 38a, higher command switch 38b, document cover switch 39, and limit switch 40 are input to the control circuit 43. When the ascending instruction switch 38b is closed and a signal is input from the input terminal I2, the control circuit 43 sends a signal (hereinafter referred to as an ascending signal) to the output terminal O for causing the motor 33 to rotate upward.

Output from. The control circuit 43 has a built-in timer (not shown) that is triggered by a human input signal from the input terminal (2). This timer is set to operate for the time necessary for the board section 1 to rise from the first position to the second position, and when the time is up, the output of the above-mentioned rising signal is stopped. Further, the control circuit 43 is configured such that the lower instruction switch 38a and the document cover switch 39 are closed.
When a signal is input from two input terminals 3 and I+.

A signal for rotating the motor 33 downward (hereinafter referred to as "signal").

(referred to as a falling signal) is output from output terminal 01.

The output of this falling signal is stopped when the limit switch 40 is closed and a signal is input from the input terminal IO.

The rising signal and falling signal output from the output terminals Oo and O+ of the control circuit 43 are respectively guided to the motor control circuit 44. The motor control circuit 44 is.

According to the input rising signal or falling signal, the motor 33
Rotate up or down. In addition.

The motor control surface [i$44 operates the infrared emitter 41 and inputs the output signal from the sensor 42, and if the infrared light path is blocked, the motor 33 is stopped. .

Next, the operation of raising and lowering the board 1 will be explained with reference to the flowcharts of FIGS. 11(a) and 11(b).

FIG. 11 (al is the board section 1 for copying the original
from the first position (Figures 3 and 4) to the second position (first position).
2). First, when you press the ascending instruction switch 38b (STI),
A rising signal is output from the output terminal Oo of the control circuit 43. Then, the motor control circuit 44 causes the motor 33 to rotate upward (Sr1). Simultaneously with the start of upward rotation of the motor 33, a timer in the control circuit 43 is triggered (S
r3). When the board section 1 rises to the second position, this timer starts the timer (5T4).

The motor 33 stops (Sr5). In this state, the original can be copied. In addition, the operation for copying the original is as follows.

This is performed by the copy operation section 45 shown first.

FIG. 11(b) is a flowchart when the board section 1 is lowered from the second position to the first position in order to perform board copying. First, when the lowering instruction switch 38a is pressed (STII), the document cover switch 39 confirms whether or not the document cover 17b is closed (ST1).
2). When the document cover 17b is open, the lowering operation is not performed, thereby preventing damage to the document cover 17b. If the document cover switch 39 is closed (ie.

If the document cover 17b is closed), a descending signal is output from the output terminal O6 of the control circuit 43, and the motor control circuit 4
4, the motor 33 rotates downward (ST13). When the board part 1 is lowered and the lower end of the screw part 29a (FIG. 9) presses the limit switch 40 (ST14), the motor 33
stops (ST15). At this time, the board section 1
It is in this position, and board copying is possible in this state.

Note that the board copying operation is performed by the board operating section 38 shown in FIG.

If the input light to the sensor 42 from the infrared emitter 41 shown in FIG. Section 1 stops as it is. This prevents dangers such as when the lowering instruction switch 38a is accidentally pressed while copying a document or when the copying section 2 is touched while the board section 1 is lowered.

In addition, in the above embodiment, the motor 3 is used as the vertical movement means.
3 was used, but gas cushion, air damper, hydraulic pressure,
Alternatively, a parallel moving mechanism ring equipped with a balancer or other methods are also possible.

〔Effect of the invention〕

As explained above, according to the present invention, the two display sections and the copying section are provided separately without being integrated, and the display section can take two positions relative to the copying section. Not only board copying but also original copying can be easily performed with one device.

Furthermore, by making it possible for one display unit to take the first position and the second position in the vertical direction, there is no need to provide space around the device to move the position, and the footprint of the device can be reduced. It can be made very small.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, with the board section in a second position. FIG. 2 is a side view of the embodiment shown in FIG. FIG. 3 is a perspective view of the embodiment shown in FIG. 1, but with the board section in a first position; FIG. 4 is a side view of the embodiment of FIG. 3. FIG. 5 is a partial front view of the embodiment shown in FIG. FIG. 6 is a schematic sectional view taken along the line AA of the board shown in FIG. 3. FIG. 7 is a schematic diagram showing the optical system of the board section shown in FIG. 6. FIG. 8 is a schematic configuration diagram showing the inside of the copying section according to the above embodiment. FIG. 9 shows a moving means for moving the board section in the vertical direction. A partial BB sectional view of FIG. 2. FIG. 10 is a circuit diagram for controlling the moving means. 11(a) and 11(b) are flowcharts for explaining the operation of the circuit of FIG. 10. 1... Board part. 2...Copying department. 3...Support part. 4a, 4b...external rails. 5a, 5b...Inner rail. 29a, 29b...screw parts. 31a, 31b...rotating shafts. 33...Motor. 40...Limit switch. 43...Control circuit. 44...Morph control circuit. Patent Applicant Casio Computer Co., Ltd. Same as above
Casio Electronics Co., Ltd. ga1 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] In an image forming apparatus that includes a display section having a display member that can be written and erased, and a copying section that copies information written on the display member, the display section copies the information using the copying section. a first possible position;
An image forming apparatus characterized in that it can take a second position above the first position and in which the copying section can copy a document.