JP2503745Y2 - Copier - Google Patents

Description

BACKGROUND OF THE INVENTION (Technical Field) The present invention relates to a copying machine, and more particularly, to a display mechanism for displaying a size of a copy sheet selected from a plurality of copy sheet storage units provided in the copy machine. About.

(Prior Art) As is well known, in an image forming apparatus such as a copying machine (hereinafter, the case of the copying machine will be described), a plain paper or the like is used depending on the size of the original to be copied or the original image. By selecting a copy sheet (hereinafter referred to as a sheet), an image is transferred onto the copy sheet.

For this reason, the copying machine is provided with a display device that displays the size of the sheet that can be fed at the present stage at the start of use and allows the user to confirm the size of the sheet when the user uses the copy machine again.

This display device does not show the details, but has a standard mode and an automatic paper selection mode. In the case of the standard mode, the paper size at the time of paper selection by the operator is displayed. In the case of (1), it is displayed that the automatic paper selection mode for automatically selecting paper according to the size of the document or the magnification of the document image is displayed.

By the way, in the conventional display device, when the standard mode is switched to the automatic paper selection mode as described above, the display panel surface shows the size of the paper selected in the standard mode as shown in FIG. A display B indicating "automatic paper selection" with the display frame a in the display unit A kept lit
When the operator sees this display, he / she may select the paper size again despite the automatic paper selection mode. In other words, if the configuration is such that the standard mode and the automatic paper selection mode are selected by a single means (for example, JP 61-80172 A),
Although it is possible to display only the selected content corresponding to the selected mode, it may be premised that a configuration for selecting each of the above modes by corresponding means is provided. For this reason, the above-described problem after selection may occur. Therefore, despite the fact that the automatic paper selection mode is set, the function of the mode, that is, the function of saving the trouble of paper selection, cannot be utilized.

(Purpose) In view of the problems in the conventional display device, an object of the present invention is that an operator using a copying machine can select a paper feed mode without troublesome operations.
Without misidentifying the display content after being selected,
Another object is to obtain a display device that allows the contents of the display to be easily confirmed.

(Structure) In order to achieve this object, the present invention presupposes that the standard mode and the automatic paper selection mode are selected by corresponding instruction means, and the frame selected in the standard mode is displayed on the automatic paper selection mode. In the selection mode, it is proposed to delete.

According to the present invention, when the mode is switched to the automatic paper selection mode, the frame in the standard mode which has been displayed so far is erased, and only the automatic paper selection mode is displayed.

The details of the embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram showing a control unit of the display device according to the embodiment of the present invention.

The main part of the control unit 1 in this embodiment is composed of a microcomputer 2, and a liquid crystal display (hereinafter referred to as LCD) having a dot matrix for displaying messages and a fixed pattern for displaying each symbol on the output side thereof.
Dot matrix LCD driver 3 for driving 3
A and a fixed pattern LCD driver 3B are respectively connected, and a mode setting LED driver 5 for driving the mode setting segment type LED 4 is connected.

In the figure, reference numeral 6 denotes a ROM, in which a control program for each display process and character display data for a message are written.
The input side of the microcomputer 2 is provided with a key input means 7 for setting information required at the time of copying, for example, the number of copies, paper size, magnification, or clearing or setting of such information by using ten keys. Connected. As described in the prior art, the key input means 7 includes a paper selection instruction means which is a means for selecting the standard mode and an automatic paper selection instruction means which is a means for selecting the automatic paper selection mode. include. The key input means 7 outputs a signal for setting the operating states of the size selection detection means and the automatic paper selection means described later.

On the other hand, the main controller 9 on the copying machine side is connected to the above-mentioned microcomputer 2 via the serial bus 8, and the microcomputer 2 is controlled by the copying machine by the data sent via the serial bus 8. A fixed pattern display such as the operating state and the setting state, warning display, abnormal display, and various warning display processing such as guidance is performed. This processing will be described later in detail.

The main controller 9 described above is provided with a microcomputer inside, and this computer is
The input means 7 selects one of the size detection means 10 for detecting the size of the paper in a paper feed cassette (not shown) that is provided in a plurality of stages and accommodates a plurality of types of paper, and the above-mentioned paper feed cassette. A size selection detecting means 11 for detecting the size of the original, an original size detecting means 12 for detecting the size of the original to be copied, a setting means 13 for controlling the drive of the optical system in accordance with the magnification of the original set by the input means 7, and , Automatic paper selection means 14 for automatically selecting and feeding a copy paper size according to the size of the set original document or a copy paper size to which a scaled image can be transferred.
Are connected to each other, and the operation control of each means and its contents are input to and output from the microcomputer 2 of the display control unit 1. Of the above means, the size selection detection means 11 is
Since the size information of the copy paper manually selected by the key input means 7 is output to the main controller 9, it is a paper selection means in distinction from the automatic paper selection means 14. For this reason, each means has an I / O interface 15
It is connected to the main controller 9 via.

On the other hand, the dot matrix LCD driver 3A and
The LCD 3 connected to the microcomputer 2 via the fixed pattern LCD driver 3B has the content shown in FIG.

That is, FIG. 2 shows a state in which the LCD 3 is fully illuminated, and the LCD 3 is composed of a dot matrix display section 30 and a numerical value and symbol (hereinafter, referred to as fixed pattern) display section 31.

In the case of the present embodiment, the dot matrix display unit 30 described above is composed of a matrix of 5 × 10 dots, and can contain up to 40 numbers, letters, katakana, symbols and any other characters.
It is a liquid crystal display for guidance display that allows individual display.

In addition, the fixed pattern display section 31 includes a segment display 31A for displaying the copy magnification as a three-digit numerical value, a segment display 31B for displaying the number of copies, etc. as a three-digit numerical value, and the paper size and orientation of each paper feeding system. Symbol group 31C shown, symbol group 31D showing various abnormalities and warnings, ready display symbol 3
1E, weight display (standby display) symbol 31F, copy density symbol 31G, serviceman call symbol 31H, display for jam occurrence position and display for each peripheral device presence / absence and paper cassette presence / absence display It is equipped with a container 31I, etc.

When a signal for setting each operation is input from the key input means 7, the control unit 1 for such a display device gives various commands to the main control unit 9 and at the same time outputs from the main control unit 9. Based on each output signal, each LCD driver 3A, 3
A drive signal for B is output. In addition to this output signal, when the operation of the automatic paper selection means 14 in the main controller 9 is performed, when the paper feed mode by that means is selected, the frame up to that time is selected. A signal for erasing the display and a signal for automatically displaying the frame of the selected paper size during the operation of the copying machine after the start of the copy operation are also output.

Since the present embodiment is configured as described above, the operation of the control unit 1 is as shown in the flowchart of FIG.

That is, in FIG. 3, for example, when the standard mode described above, that is, the sheet selection by the operator is performed, the standard mode is selected by an instruction from the sheet selection instructing means in the key input means 7, This signal is output from the control unit 1 to the main control device 9, and the main control unit 9 checks this signal to determine whether or not it is the automatic paper selection mode (ST1), and the determination result is the control unit 1 To the microcomputer 2.

On the other hand, in the control unit 1 which is output from the main control unit 9 indicating that the mode is the standard mode, the number of inputs from the size selection detecting unit 11 via the key input unit 7 is sequentially output by the main control unit 9. In response, the number of times is counted.
That is, when it is determined that the standard mode is set,
The paper for transferring the image is selected, and the selection of the paper can be set by the number of key operations on the key input means 7 side. Therefore, the number of key operations is performed one by one. The display frame 31C1 of the symbol group 31C indicating the paper size and direction of each paper feed system is turned on so as to display the number corresponding to the number of times stored in the RAM of the microcomputer 2 (ST2). Through ST5).

On the other hand, when the automatic paper selection mode is set by the instruction from the automatic paper selection instruction means in the key input means 7, whether the selection signal is the automatic paper selection mode in the main controller 9 as in the standard mode. It is determined whether or not it is in that mode (ST1), and the mode is determined, and the frame 31C1 in the symbol group 31C indicating the paper size and orientation of each paper feed system that is currently lit is turned off (ST6 ), And the message 3M indicating that automatic paper selection is performed is lit as shown in FIG. 5 (ST7). At this time, in the main control device 9, the movement control of the optical system according to the magnification change is performed by the setting device 13 based on the command from the key input device 7, or it is detected by the pre-scanning of the exposure optical system. In order to select the paper corresponding to the selected original size, the original size detection means 12 as well as the automatic paper selection means
14 works.

Therefore, for the operator, the display of this state is
Since it is only possible to identify the display of “automatic paper selection”, it is not confused with other information regarding the setting of the paper feeding state.

Further, in this way, when the copy operation is performed in the copying machine after the display in the automatic paper selection mode is performed, it is stored in the ROM 6 in advance when the message display unit 30 determines the message-on state. LCD driver for dot matrix 3A
As shown in FIG. 6, a symbol indicating the paper size and orientation in the paper feed system is displayed to indicate that copying is in progress and the size of the currently selected paper through output to The frame 31C1 of the group 31C is turned on. When the automatic paper selection mode is switched to the standard mode again, the paper size stored in the RAM of the microcomputer 2 is displayed.

(Effect) As described above, according to the present invention, in the paper feeding system of the copying machine, the automatic paper selection mode for automatically selecting the paper size corresponding to the original size or the paper capable of transferring the scaled image If it is, the information display related to the size of the paper that has been displayed until then is erased and only automatic paper selection is displayed, so there is no misidentification of the information related to paper feeding. ,by this,
The simplicity of the operation, in other words, the function of the automatic paper selection mode, that is, the operation related to the paper feeding, can be sufficiently exerted. In addition, in the standard mode and the automatic paper selection mode, the size selection detection means and the automatic paper selection means which are provided separately are set by the key input means, so that the paper supply mode can be set with a minimum number of operations. When the automatic paper selection mode is set, the size display in the standard mode can be reliably turned off.

[Brief description of drawings]

1 is a block diagram showing a main part of a display device according to an embodiment of the present invention, FIG. 2 is a plan view showing a display surface of a display device according to an embodiment of the present invention, and FIG. 3 is a block diagram of the block shown in FIG. 4 to 6 are flowcharts for explaining the operation of the display device according to the embodiment of the present invention.
FIG. 7 is a plan view corresponding to FIG. 7, and FIG. 7 is a plan view corresponding to FIG. 2 showing a display surface placed on a conventional display device. 1 ... Display control unit, 2 ... Microcomputer,
3 ... Liquid crystal display, 9 ... Main control device, 10 ... Size detecting means, 11 ... Size selecting means, 12 ... Original size detecting means, 13 ... Setting means, 14 ... Automatic paper selecting means.

Claims (1)

(57) [Scope of utility model registration request] 1. A copy sheet size detecting means corresponding to a storage section respectively storing a plurality of sizes of copy sheets, a document size detecting means for detecting a size of an original to be copied, and a scaling factor for the original. Setting means, automatic paper selection means for automatically selecting a copy paper of a size capable of transferring an image based on signals from the original size detection means and the magnification setting means, and the copy paper of the accommodating section. Paper selection instruction means for manually selecting one of them, automatic paper selection instruction means provided independently of the paper selection instruction means for instructing the operation of the automatic paper selection means, and selected by the paper selection means. In a copying machine including a display unit that displays the size of the copy paper and a display control unit that controls the content displayed on the display unit, the display control unit is configured to perform the automatic paper selection. A copying machine, characterized in that when the selection instructing means gives an instruction to operate the automatic paper selection means, the size display of the copy paper selected by the paper selection instructing means is erased.