JPH04138474A - Image forming device - Google Patents

Abstract

PURPOSE:To intuitively recognize a variable power rate by moving an instructing means along the graduation of the scale disc of the variable power rate and simultaneously, displaying the variable power with a figure. CONSTITUTION:This image forming device is provided with the instructing means 78 freely moved along the graduation of the variable power rate scale disc 77, a driving means 79 moving the instructing means 78 to the position of the graduation corresponding to input, and a display means 85 displaying the variable power rate with the figure. Therefore, an analog display means for carrying out the display of the variable power rate by the scale disc 77 and the instructing means 78 is provided. Thus, the variable power rate can be visually and intuitively recognized. Consequently, the selecting and setting of the variable power rate are easily carried out, working efficiency is excellent, and moreover, a digital display means 85 is provided in parallel, so that the variable power rate can be precisely set.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an image forming apparatus that has an improved magnification display means that indicates the magnification of an image relative to a document.

(Prior Art) Many recent image forming apparatuses, such as electronic copying apparatuses, are equipped with a variable magnification means that can appropriately select and change the size of an image relative to a document. This scaling is performed by operating input means and display means provided in the scaling setting section of the operation panel, and there are two types of scaling, for example, enlarging an image of an A4 document to A3, There are two types: regular magnification, which forms an image by reducing it to B5, and continuous magnification, which is called zoom magnification, which enlarges and reduces the image of the document to a desired size.

Therefore, the magnification setting section is provided with a constant magnification input means and a constant magnification display means for constant magnification,
Furthermore, a variable magnification input means and a variable magnification display means for continuous magnification are provided.

In fixed-form magnification, a human key is used as a fixed-form magnification input means.
For example, when a key is pressed, a section specifying the variable magnification item lights up, forming a fixed variable magnification display means.

Therefore, there are fewer operational errors during input, but since the magnification ratio is generally displayed in terms of paper size, it is difficult to understand the magnification ratio, and there are disadvantages in that it is impossible to set the desired magnification ratio.

On the other hand, in the continuous variable magnification means, input and display are performed at variable magnification ratios, so for example, the variable magnification input means can be used to enlarge, display, etc.
There are three keys for normal size and reduction, and when you press the key on the window frame set close to this, for example, 101% and 102%.
. . . are displayed in sequence, forming a digital variable magnification display means.

Therefore, since the continuous variable magnification ratio is displayed numerically, the desired variable magnification ratio can be set very precisely, and therefore, it is generally widely adopted.

However, since the digital method displays numerical values, the ratio of magnification is different from visual judgment and is difficult to understand intuitively, resulting in the disadvantage that it often requires trial and error to obtain the desired magnification image. .

Also, if you keep pressing the key, the display changes rapidly, but it takes a long time to set the magnification ratio. There are some inconveniences such as it takes a lot of time and requires a lot of attention.

(Problems to be Solved by the Invention) As mentioned above, the conventional fixed-format variable magnification display means rarely causes operational errors, but since it is displayed in paper size, it is difficult to understand the variable magnification, and furthermore, it is difficult to grasp the desired There is an inconvenience that it is not possible to set the magnification ratio to .

In addition, since the magnification ratio display means for continuous magnification is a numerical digital display, the magnification ratio can be set precisely.
Unlike the case of visual observation, it is difficult to intuitively grasp the magnification ratio, and there is an inconvenience that trial and error is often required until a desired magnification image is obtained.

Furthermore, when setting the magnification ratio, there is a problem in that it takes time to input near the set value.

The present invention has been made in order to eliminate the above-mentioned disadvantages, and an object of the present invention is to provide an image forming apparatus having a variable magnification display means that allows the variable magnification to be set precisely and allows the variable magnification to be grasped intuitively. shall be.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the image forming apparatus according to claim (1) of the present invention provides an image forming apparatus that inputs a variable magnification setting of an image to be formed on a document using a variable magnification ratio. In an image forming apparatus comprising a magnification input means and a magnification display means for displaying the input magnification, the magnification display means includes a scale board that does not indicate a magnification and has 1-1 markings, an indicating means movable along the L1 scale of the scale board; a driving means for moving the command stage to a position of 11 scales corresponding to the input of the variable magnification input means; The present invention is characterized by comprising display means for numerically displaying the magnification ratio.

In the image forming apparatus according to claim (2), the variable magnification display means is provided with a light emitting body at a position of a specific variable magnification set on the dial, and when the specified variable magnification corresponds to the indicated position of the indicating means, The image forming apparatus according to claim 1, further comprising a specific variable magnification display means for causing the light emitter to emit light.

Furthermore, in the image forming apparatus according to claim (3), the specific magnification ratio is a standard scaling ratio that performs scaling between paper sizes, and the paper size of the standard scaling ratio is displayed at the position of the scaling ratio. An image forming apparatus according to claim (2), characterized in that:

(Function) In the image forming apparatus of claim (1), the variable magnification display means is an analog display that includes a dial and an indicating means that is movable along the dial, so that an appropriate variable magnification can be determined visually. It can be grasped intuitively.

Furthermore, the digital display means provided on the dial allows precise setting of the magnification ratio.

Furthermore, in the image forming apparatus of claim (2),
Since the light emitting body is provided at the position of the specific magnification ratio set on the "1" plate, the position of the specific magnification ratio can be quickly and easily selected by emitting light.

Furthermore, in the image formation according to claim (3), the position of the specific magnification ratio is set as the standard magnification position for changing the magnification between paper sizes, and the size of the magnification is displayed, so that the setting of the standard magnification can be quickly performed. It's easy to do.

(Example) The details of the present invention will be explained below with reference to each example shown in FIGS. 1 to 12.

First, the image forming apparatus of the first embodiment will be explained with reference to FIG. 11, not FIG. image forming means 41, dry paper means 51, control means 6],
It is composed of a variable magnification setting display device 71.

Note that the image forming apparatus of this embodiment has a variable magnification setting display device 7.
The other parts other than 1 are the same as the conventional one, so after explaining the outline of the other parts, we will explain the magnification setting display device 7.
1 will be explained in detail.

The main body 1 houses the entire device, and has openings on the top and both sides. Further, an operation panel 2 is provided in front of the top surface.

As shown in Fig. 3, from the right end there are a copy key 3, a number setting key 4, a paper cassette selection key 5, a display section 6, an image density setting section 7, etc. A setting display device 71 is arranged.

The document placement means 11 includes a document table 13 on which the document 12 is placed;
It has a document cover 14 attached to the main body 1 so as to be openable and closable, and by closing the document cover 14,
The original 12 is held suppressed.

The exposure scanning means 21 includes a moving light source body 22, moving reflecting mirrors 23a and 23b1, an imaging lens 24, and a reflecting mirror 2.
It consists of 5a, 25b, 25c, etc.

As the light source 22 moves and scans the original 12 while irradiating the original 12, the reflected light from the original 12 is incident and converged on the imaging lens 24 by the moving reflection mirrors 23a and 23b, and the converged light is transmitted to the fixed reflection mirror 25a, 25b, 25c
The light is then guided onto the photoreceptor drum 42, where it is imaged.

In addition, the magnification is changed by the imaging lens 24 and the reflecting mirrors 25a and 25.
This is done by moving the lens b, but this variable magnification mechanism 27
As shown in the figure, while holding the imaging lens 24, the optical axis 24a
It has a lens unit 28a that is movable in the direction of the optical axis 24a, and a mirror unit 28b that holds a pair of reflecting mirrors 25a and 25b and is movable in the direction of the optical axis 24a, and these are driven by timing belts 29a and 29b. With two bodies,
It is moved separately by a predetermined amount in accordance with the input magnification ratio, and is moved and positioned at the set magnification change position.

The paper feeding unit 31 supplies paper P as an image carrier, and includes a manual feed cassette 32 and cassettes 33, 34, and each big up roller 32a, 33a, 34.
The paper P taken out by a is sent to the feed separation roller pair 33
b, 34b, and reaches the aligning roller pair 35, and is sent to the photoreceptor drum 42 as appropriate.

The image forming means 41 includes a rotating photoreceptor drum 42, and the image of the original 12 formed thereon becomes a latent image, which is developed by a developing device 42a as the photoreceptor drum 42 rotates, and becomes a visible image. is transferred by the transfer device 42b onto the paper P sent from the aligning roller pair 35, the paper P is further sent by the conveyor 43, is heated and fixed by the fixing roller pair 44, and is sent to the paper discharge means 51.

The paper ejection unit 51 includes a paper ejection roller pair 52 and a paper ejection tray 53, and the fixed paper P is sent out by the paper ejection roller pair 52 and stored in the paper ejection tray 53.

The control means 61 is composed of a control device 62 having a CPU, and controls each of the above-mentioned parts, but the explanation of the parts similar to the conventional one will be omitted, and the parts related to the present invention will be described later.

This image forming apparatus is configured as described above.

Next is the variable magnification setting table n, which is an important component of the present invention. The claw device 71 will be explained.

The variable magnification setting display device 71 is provided on the operation panel 2 and includes a variable magnification input means 72 and a variable magnification display means 76.

As shown in FIG. 5, the variable magnification input means 72 has an enlargement key 73, a same-magnification key 74, and a reduction key 75, which are each connected to the control device 62. Then, each time the enlargement key 73 or reduction key 75 is pressed, the control device 62 is turned red and the display of the variable magnification display means 76, which will be described later, is moved by 1[1 increments]. Furthermore, by pressing the same-size key 74, the display returns to the same-size display immediately.

The variable magnification display means 76 is an analog display meter as shown in FIG. This has a circular [1 scale plate 77] with 1 scale scale 77a, where 2% is the minimum 1 scale (movement is 1%).
110 in the direction of the hour 51, centering on the 11 scale 77b of
At the %, 120%, ......140% position, there is a large scale marked "1 mark 77a".
Counterclockwise 90%, 80%, 60
A similar scale 77a is also carved at the % position.

Further, this scale plate 77 is provided with an indicating means 78, which consists of a pointer 78a supported rotatably concentrically with the scale plate 77;
It has an instruction section 78b that is movable along the direction a.

Furthermore, an indicating means 78 is provided on the back side of the scale plate 77.
A driving means 79 is provided for driving the. This consists of a pulse motor 79a that holds the pointer 78a and a detection gap 7.
It includes a reference position detection body 79c having a diameter 9b and an actuation piece 79d.

Then, the pointer 78a is rotated by the pulse motor 79a, and the actuating piece 79d enters the detection gap 79b.
The reference position detector 7 Q c detects this and the pointer 78g
is held at its reference position at 100% (same size).

Furthermore, light emitting bodies L1, B2, . . . B7 each consisting of seven LEDs are provided along the outer periphery of the scale plate 77. These are preset specific magnification ratios M1 and M2.
, . . . is provided at position M7.

For example, the luminous body L4 has a specific magnification ratio M+ 100% (equal magnification), and the luminous body L4 has a specific magnification ratio M471% (from A3 to A4
, B4 is reduced to B5), and so on.
Display bodies Nl5N2, each indicating a fixed magnification size, . . .
......N7 is provided.

These light emitters L1, B2...B7, and the light emitter drive units DL, D, which connect these to the control device 62.
L2,... and each display body N1, N2, N1,...
. . . N7 constitutes a specific variable magnification display means 81.

As will be described later, when the indicated position of the pointer 78a and the specific magnification ratio M1, . . . match, the light emitting body L1 . indicate.

Furthermore, the scale plate 77 is provided with a digital display means 85. This is a 3-digit segment display 85a
and a display drive section 85b that connects this to the control device 62.
The input magnification ratio is displayed numerically, which matches the display content of the pointer 78a.

FIG. 5 shows the case where the variable magnification is equal to 100%, the pointer 78a indicates the variable magnification of 100%, and the digital display means 85 also indicates 100%.
00% is displayed. FIG. 8 shows the case of reduction to 71%, the pointer 78a indicates 71%, and the digital display means 81 also displays 71%. FIG. 9 shows the case of enlargement to 141%, and both the pointer 78a and the digital display means 81 indicate 141%.

As described above, the control means 61 includes a control device 62, to which are connected an enlargement key 73, a same-size key 74, and a reduction key 75, and also a H/L/Smoke 79.
A pulse motor driver 79e for driving a and a reference position detector 79c are connected.

Further, as described above, the light emitting body L...
... is also connected, and furthermore, the display drive section 85
A segment display 85a is connected via b.

When the magnification ratio is input from the input keys 73, 74, and 75, the control device 62 rotates the pulse motor 79a in accordance with the magnification ratio until the finger ψ 178a indicates the input magnification ratio. On the other hand, the digital display means 85 also has a pointer 78.
Display the number that matches a.

When the pointer 78a matches a specific magnification ratio, for example M3, the control device 62 causes the light emitter to emit light.

Next, the overall operation of the variable magnification setting display device 7 will be explained. When performing image formation at a magnification ratio of 1.20%, when the enlargement key 73 is pressed, the input is input to the control device 62, and the pulse motor 79a is driven via the pulse motor driver 79e. 78 guidelines 7
8a is moved to the 12[]% position as shown by the two-dot chain line in FIG. 5, and at the same time, the lens unit 28a% mirror unit 28b of the exposure scanning means 21 is also moved to a predetermined position. Further, the segment display 85a also displays 120, indicating that image formation is performed at a magnification of 120%. Then, by pressing the copy key 3, image formation is performed at this magnification ratio.

In addition, when the equal magnification key 74 is pressed in this state, this is input to the control device 62, the pulse motor 79a is rotated, and when the operating piece 79d enters the detection gap 79b, the reference position detector 79c detects this, In response to a command from the control device 62, the pointer 7
8a stops in the state where 100% is indicated, and the light emitter L1
lights up, and the segment display 85a also displays 100%.

Next, in FIGS. 11(a) and 11(b), if you want to reduce the position (77%) of the display body N4 and the light emitting body L4 at a specific magnification ratio M4, for example, if you keep pressing the reduction key 75,
The pointer 78a passes 72% and becomes 71%. Then, the light emitting body L4 emits light, indicating that the position is at the specific magnification ratio M4, and the segment display 85a also displays 71%. Then press copy key 3 and the A3 size will change to A4.
It is reduced in size and copied.

The same applies to enlargement, so the explanation will be omitted.

FIG. 7 shows a modification of the driving means 79, in which a pulse motor 79a
This configuration is suitable for cases in which it is necessary to adjust the movement of the pulse motor 79a and the length of the stroke of the pointer 78a.

As in this embodiment, a display device that displays the magnification ratio using an analog display means and a digital display means and is provided with a specific magnification ratio display means allows the mutual relationship between the fixed magnification ratio and the continuous magnification ratio to be easily known. Therefore, it is easy to select an appropriate paper for magnification change. Furthermore, since the selected position is clearly indicated by light emission, settings can be made quickly.

This concludes the description of the first embodiment.

FIG. 12 shows another embodiment in which the specific magnification ratio display means 81 displays numerical values of the magnification ratio directly instead of the fixed magnification size.

This is suitable for managing regular magnification using a magnification ratio.

In each of the above embodiments, the specific magnification change display means has been described using a fixed magnification as an example, but the present invention is not limited to this, and it goes without saying that it may be applied to other specific magnifications. Further, the light emitting body is not limited to an LED, and may emit light or blink.

[Effects of the Invention] As described in detail above, the image forming apparatus of the present invention is provided with an analog display means using a dial and an indicating means to display the magnification ratio, so that the magnification ratio can be visually and intuitively grasped. This makes it easy to select and set the variable magnification ratio, improving work efficiency. Also, since it is equipped with a digital display means, it is possible to precisely set the magnification ratio, and when making settings, the distance between the pointer and the setting scale can be visually recognized, so the pointer can be rapidly moved to a close position and changes can be made quickly. You can set the magnification.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram of the first embodiment of the present invention, Fig. 2 is an external perspective view, and Fig. 3 is the same main part (operation panel).
, and Figure 4 is a front view of the main part (variable magnification mechanism).
Fig. 5 is a plan view of the main part (variable magnification setting display device), Fig. 6 is a perspective view of the main part (magnification ratio display means) with a part cut away, and Fig. 7 is a similar main part. FIGS. 8 and 9 are plan views of the main part (magnification setting display device), FIG. 1 is a block diagram of the control means, and FIG. 11(a) and 11(b) are plan views of the main part (variable magnification setting display device) for explaining the operation, and FIG. 12 is a plan view of the main part (variable magnification setting display device) of another embodiment of the present invention. ) is a plan view of

Claims (3)

[Claims] (1) In an image forming apparatus comprising a variable magnification input means for inputting a variable magnification setting for an image to be formed on a document as a variable magnification, and a variable magnification display means for displaying the input variable magnification, the variable magnification display means is a scale board having a scale indicating a magnification ratio, an indicating means movable along the scale of the scale board, and a driving means for moving the indicating means to a position of the scale corresponding to an input from the magnification ratio input means; An image forming apparatus characterized by comprising: a display means provided on the scale plate and displaying the input magnification ratio in numbers. (2) The variable magnification display means includes a light emitter at a position of a specific variable magnification set on a dial, and causes the light emitting body to emit light when the specific variable magnification matches the position indicated by the indicating means. The image forming apparatus according to claim 1, characterized in that the image forming apparatus has: (3) The specific magnification ratio is a standard magnification that performs magnification changing between paper sizes, and the paper size of the standard magnification is displayed at the position of this magnification change ratio. Image forming device.