JPH0434565A - Image forming device - Google Patents

Abstract

PURPOSE:To prevent copying from being inadvertently executed at undesired magnification by changing the display of copying magnification to the display of unmagnification or the display of the magnification other than the unmagnification when an image forming device provided with a magnification set function is used. CONSTITUTION:When a button 13 is depressed and a number displayed on a display device 16 becomes 80% on a control panel 1, the number of 80% is displayed by a green color, for example. Even when the other magnification is set, a color displayed on the display device 16 is the green color in the same manner. Besides, when a button 15 for setting the unmagnification is depressed and the number displayed on the display device 16 becomes 100% showing the unmagnification, the number of 100% is displayed on the display device 16 by a color that a red color is emphasized, for example, so that it can be easily discriminated from the displayed color when the magnification other than the unmagnification is set. Thus, the operator of the image forming device can easily discriminate an unmagnification state from the other magnification state. Besides, the copying is prevented from being inadvertently executed at the undesired magnification.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to an image forming apparatus, and particularly relates to an image forming apparatus applied to a control panel of a copying machine with a variable magnification function. .

(Prior Art) An image forming device such as a copying machine uses light to read the shading of characters, figures, etc. drawn on a document placed on a document glass.
The read image is projected onto a photosensitive drum through a lens to form a toner image, and the toner image is transferred and fixed onto a sheet of paper, thereby copying a document. In the early days, such image forming devices could only copy originals at the same size, but now by changing the magnification of the lens mentioned above, originals can be enlarged from A4 size to B4 size. It is also equipped with a fixed magnification change function that reduces the document size to B5 size, and a zoom function that allows the copy magnification of the document to be freely changed within a range of 50% to 200%.

Nowadays, the copying magnification in image forming apparatuses is generally set using the buttons provided on the control panel, and the setting magnification is performed by lighting a lamp or displaying numbers on the display on the control panel. It looks like this.

(Problem to be Solved by the Invention) However, in conventional image forming apparatuses, the magnification set by a button provided on the control panel is displayed by lighting a lamp or by numbers on the display on the control panel. However, since there is no particular difference in the display form such as display color when the set magnification is equal to the same magnification and when the set magnification is not equal to the same, there is the following problem.

(1) Even if the setting magnification display section is set to a magnification other than 100%, a document that should be copied at 100% may be enlarged or reduced in size due to carelessness without noticing the magnification. .

(2) If you set the magnification on the control panel and make enlarged or reduced copies, if the copying interval is longer than a certain period of time, the automatic release function will automatically cancel the set magnification and return to the same size mode. Because it becomes
If you are not aware of this, you may end up copying a document that should be enlarged or reduced at the same size.

It is an object of the present invention to solve the above-mentioned drawbacks of the prior art, and an object of the present invention is to display the copying magnification between 100% and 100% when using an image forming apparatus with a magnification setting function. It is an object of the present invention to provide an image forming apparatus that can reduce the risk of inadvertently copying a document at an undesired magnification by changing the image forming apparatus.

[Structure of the invention]

(Means for Solving the Problems) An image forming apparatus of the present invention that achieves the above object includes an input means for setting a copy magnification of a copy image with respect to an image to be copied;
an image forming apparatus having a display means for displaying a set copy magnification, when a desired copy magnification is input to the input means, only when the desired copy magnification is equal magnification, the display means displays a value other than equal magnification; It is characterized by having a display device that visually emphasizes and displays the same size display with respect to the copy magnification.

(Function) According to the image forming apparatus of the present invention, the display on the copy magnification display on the control panel of the image forming apparatus differs between when copying at the same size and when setting a magnification other than the same size. Since the display color and display format are different from when the time is displayed at a magnification other than the same magnification, it is possible to prevent erroneously copying at an undesired magnification.

(Example) Hereinafter, the present invention will be described in detail by way of example with reference to the drawings.

FIG. 1 is a perspective view showing the overall configuration of an embodiment of an image forming apparatus 10 of the present invention. In the figure, 1 is a control panel for specifying the number of copies to be made, the magnification for enlargement or reduction, the paper to be copied, etc., 2 is the original glass on which the original to be copied is placed, and 3 is the position of the original according to the size of the copy paper. 4 is a document cover for holding the document; 5 is a paper receiver for receiving copied sheets; 6 is a cassette tray for storing copy sheets of A4, B5, etc.; and 7 is a power switch.

FIG. 2 shows an enlarged view of the main parts of the control panel 1 shown in FIG.
FIG. 2 is an enlarged view of a portion for specifying paper to be copied, etc.; In the figure, 11 is a group of buttons for specifying the document size, and 12 is a group of buttons for specifying the paper size.
, 12a lights up. Also, 13.
14 is a button for setting the zoom magnification for enlarging or reducing the original to be copied; 15 is a button for setting the same magnification;
Reference numeral 6 denotes a display device on which the copying magnification is displayed. When the button 13 is pressed, the number displayed on the display 6 gradually decreases from 100% until it reaches a minimum of 50%, and when the button 14 is pressed, the number displayed on the display 16 is 100%. It gradually increases from there until it reaches a maximum of 200%. And button 1
When 5 is pressed, the copy magnification returns to 100% no matter what number is displayed on the display 16.

FIG. 3 shows an enlarged view of only the display 16 in FIG. 2. For example, in the control panel l of this embodiment, when the button 13 is pressed, the number displayed on the display 16 reaches 80%. It shows the state when At this time, the number 80% is displayed, for example, in green on the display 16. In this embodiment, the color displayed on the display 16 is also green even when other magnifications are set.

Similar to FIG. 3, FIG. 4 shows only the display 16 in FIG. 2 in an enlarged manner, but this diagram shows the control panel 1.
This shows the state when the button 15 is pressed and the number displayed on the display 16 becomes 100N, which indicates the same magnification. At this time, the 100% number is displayed on the display 16 in an emphasized red color, for example, and can be easily distinguished from the display color when the magnification is set to another magnification other than the same magnification. It has become.

Such a display 16 can be easily realized by using a two-color LED (light emitting diode) or the like.

FIG. 5 shows the configuration of another embodiment of the control panel 1. This embodiment does not have the zoom function as shown in FIG. 2, but is a control panel for a simpler image forming apparatus that only has a fixed magnification. 1 is shown. The control panel 1 in such a simple image forming apparatus includes, for example, a fixed magnification selection key 17, a display 18 indicating an enlargement state, two types of displays 19 indicating a reduction state,
and an indicator 20 that indicates the same magnification state. When the key 17 is pressed, any of the displays 18 to 20 lights up, but in this example, the display color of the displays 18 and 19 is yellow, and the display color of the display 20 is highlighted in red. It has become. Therefore, in the image forming apparatus of this embodiment as well, the operator of the image forming apparatus can easily distinguish the same magnification state from other magnification states by the display colors of the displays 18 to 20.

In the two embodiments described above, the reproduction magnification of equal magnification and other magnifications was distinguished by the color displayed on the display, but this color combination is not limited to the embodiments described above. There are many other possible color combinations that can be used for identification. Also,
In addition to distinguishing the original copy magnification from other magnifications by the display color on the display, if you make the display blink when the original magnification is displayed, it will be easier to distinguish between the original copy magnification and other magnifications. In some cases, it is effective to display the same color.

FIG. 6 shows an example of a circuit for realizing the control panel 1 of the embodiment shown in FIG. An LED (light emitting diode) is connected to a predetermined terminal of the control IC 21 via a resistor R.
18', 19a, 19b, and 20° are connected, and the NOA node side of LEDs 18', 19a, 19b, and 20' is connected to a power source. The LED 18' corresponds to the indicator 18 showing the enlarged state in FIG.
19a.

19b corresponds to the two types of indicators 19 that indicate the reduced state in FIG. 5, and L E D20' corresponds to the indicator 20 that indicates the same size state in FIG. Further, a fixed magnification selection key 17 is connected to another predetermined terminal of the control IC 21.
Depending on the number of times this key 17 is pressed, the IC 21 is set to a predetermined LE.
Turn on any of D18°, 19a, 19b, and 20'. Then, during operation, the LEDs 18', 19a,
19b emits yellow light, and L E D20' emits red light. Note that the circuit that realizes the control panel 1 of the embodiment shown in FIG. 5 is not limited to the circuit shown in FIG. 6.

〔Effect of the invention〕

As explained above, according to the present invention, the display on the control panel of the image forming apparatus differs between when copying at the same size and when a magnification setting other than the same size is set, and the display when copying at the same size is different. Since the display color and display form are different from those when the magnification is set to a value other than the same magnification, it is possible to prevent copying from being performed at an undesired magnification by mistake, thereby improving copying efficiency.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the overall configuration of an embodiment of the image forming apparatus of the present invention, FIG. 2 is a partially enlarged view of an example of the control panel of the apparatus shown in FIG. 1, and FIG. Figure 4 is an enlarged view of the magnification display section of the control panel in Figure 2 where the magnification is displayed. Figure 4 is an enlarged view of the magnification display section of the control panel in Figure 2 where the same magnification is displayed. FIG. 6 is a partially enlarged view of another example of the control panel of the apparatus shown in FIG. 1, and FIG. 6 is a circuit diagram showing an example of a circuit realizing the control panel of FIG. ■...Control panel, 2...Document glass, 3...Document scale, 4...Document cover 5...Paper tray, 6...Cassette tray, 7...Power switch, 10. ...Image forming apparatus of the present invention, 11... Original size setting button, 12... Paper size setting button, 13, 14... Zoom magnification setting button 15... Same size setting button, 16... Magnification display, 17... Fixed magnification selection key 1B, 19.20... Display. hmm,

Claims (1)

[Scope of Claims] An image forming apparatus comprising: input means for setting a copy magnification of a copy image with respect to an image to be copied; and means for displaying the set copy magnification; When a desired copying magnification is input, the display means includes a display device that visually emphasizes and displays an equal-size display for copying magnifications other than equal-sized, only when the desired copying magnification is equal-sized. An image forming apparatus characterized by: