JPH066505A - Digital copying machine - Google Patents

Abstract

PURPOSE:To prevent erroneous power supply interruption or to continue a valid function even when the power is interrupted by informing that other function is used while one function is in fault. CONSTITUTION:When e.g. a copy function is faulty in a multi-function digital copying machine, an indication such as 'Application software is in operation, don't interrupt power.' is displayed on an LCD 21 of an operation panel 9 immediately and also while application software is in operation, and the facsimile function is continued when erroneous power interruption is prevented. Furthermore, even when the power interrupt operation is implemented, a relevant relay is activated, the power is not substantially interrupted, and the facsimile function is continued.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a digital copying machine having a wide variety of functions, and in particular, even if one function becomes unavailable due to a failure, another function can be used. The present invention relates to a digital copying machine which prevents the power from being turned off accidentally by notifying the user.

[0002]

2. Description of the Related Art A digital copying machine that handles image information as digital signals can have not only a copying function but also various composite functions. Examples of such composite functions (application functions) include a facsimile and an online printer. , Editing, scanner function, and the like. For this reason, the operation unit of the digital copying machine is composed of a basic unit in which keys for the copying function are arranged and each application unit in which keys for the complex function are arranged.

FIG. 4A is a diagram showing an example of an operation section (operation panel) of a conventional digital copying machine. The operation section is roughly divided into a basic section 1 having keys for copying functions.
And application section 1 with keys for complex functions
0 and are provided. The basic section 1 includes a copy start key 2 for starting a copy operation, a clear key 3 for resetting various input contents, a stop key 4, a numeric keypad 5 for inputting numerical values, a density / paper-related key 7, 8 and a centralized display section 9 for displaying an abnormal state, the number of sheets, and the like. The application section 10 includes an editing section, a fax section, a printer section, an application selection key, and the like.

FIG. 1B is a detailed view of the centralized display section 9,
7-segment LED 20 for displaying numerical values, liquid crystal display 21 for displaying messages (hereinafter referred to as LED), jam display section 22 when recording paper jams, door open display section 23, toner replenishment display section 24, jam display Part 2
5, a serviceman call display unit 26, a data input display unit 27, and a communication error display unit 28.

By the way, in the digital copying machine having the above-mentioned conventional operation section, even if some of the functions of the copying machine, for example, the printer section fails and cannot be used, other functions such as the facsimile function can be used. Moreover, even if the scanner unit is out of order, output by the printer is possible.

However, in the conventional control program for the display unit of the digital copying machine, when the failure occurrence of one function is displayed, it is not displayed that the other functions can be used. There is a situation in which the user mistakenly turns off the power of the digital copying machine itself and cannot use other functions that can effectively operate.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and in a digital copying machine having a variety of functions in addition to the copying function, even if one function becomes unavailable due to a failure. To provide a digital copying machine capable of preventing erroneous power-off by taking measures such as notifying the user that other functions are available, or capable of continuing to operate an effective function even when the power is turned off. Is intended.

[0008]

In order to achieve the above object, the first invention of the present application is a basic portion in which keys for copying function are arranged,
An operation unit including an application unit in which keys for complex functions are arranged, a display unit, and a specific function can be selected by operating each key on the operation unit, or a display can be displayed on the display unit. In a digital copying machine having a control unit, the control unit controls the display unit to display that the function is operating when any application function is operating. Characterize.

According to a second aspect of the present invention, a relay for supplying commercial power to the application function circuit unit is connected in parallel to the main body power switch of the digital copying machine, and the control section is operating the application function. It is characterized in that the relay is operated for a certain period of time to supply commercial power to the circuit unit.

According to a third aspect of the present invention, a detection means for detecting ON / OFF of the power switch is connected to the power switch of the main body, and the control section controls the power supply during a period in which the application function is operating. An alarm message is displayed on the display when the switch is turned off.

The present invention will be described in detail below with reference to the accompanying drawings. The configuration of the operation panel shown in FIGS. 4 (a) and 4 (b) is also referred to. FIG. 1 is a diagram showing a state in which the display contents of a display unit are controlled according to the first embodiment of the present invention, and the same portions as those in FIG. 4 (b) are designated by the same reference numerals. In the present embodiment, even when the copy function cannot be used due to a failure or the like, if any of the application functions, for example, the facsimile function is operating, the LCD 21 displays “App operating. The message "Do not turn off the power" is displayed. When any one of the application functions is operating in this way, the user is informed that the application operation can be continued even if a copy-related failure occurs, so that the power is accidentally turned off. It is possible to prevent the occurrence of the situation. It is a fact that any one of the above functions is operating is known in the control unit that outputs a control signal to the circuit unit for realizing each function. You may make it notify a control part that it is operating with the signal from a unit.

Next, FIGS. 2 (a) and 2 (b) are flow charts showing the control procedure based on the application power source protection circuit diagram and the control program in the control section of the second embodiment of the present invention.
The power switch 40 of the copying machine main body is connected in series with a commercial power supply 41, and the switch 40 is connected in parallel with a relay contact 42a of a relay 42. The relay 42 is connected to the emitter of the transistor 44 connected at the base to the output terminal from the control unit (CPU, ROM, RAM, I / O port) 43, and based on the control signal from the control unit 43, the transistor 42 is connected. When the switch 44 is turned on, it operates to turn on the contact 42a, and even if the power supply 40 is turned off, the application unit is operated by the current from the commercial power supply 41. That is, the relay contact 42a is connected to an application function circuit unit (not shown) and supplies a current from the commercial power source to the circuit unit when it is in the ON state. When any of the application functions is operating as shown in the flowchart of (b), the control unit 42 operates the application relay 42 to close the contact 42a, and the display of FIG. 1 is displayed. Give it to me. When the operation of the application function is completed, the relay is turned off.

FIGS. 3 (a) and 3 (b) are a circuit diagram and a flow chart of the second embodiment of the present invention, in which a relay 50 for detecting ON / OFF of the power source is added to the circuit of FIG. 2 (a). When the power supply 40 is accidentally turned off by the
The feature is that the control is made so that the message 1 "Please do not turn off the power because the application function is on" is displayed. That is, as shown in the flowchart of FIG. 3 (b), when the application is in operation, a message to that effect is displayed, and when the power supply 40 is turned off during the operation of the application, the alarm message is issued. When the application operation is completed, the relay 42 is turned off.

[0014]

As described above, according to the present invention, even when a part of the functions of a digital copying machine having a plurality of functions fails, the user can easily know that the other functions are operating. Therefore, it is possible to prevent a situation in which the power supply of the main body is accidentally turned off and the function in operation is inadvertently turned off. Further, even if the power is accidentally turned off, the operation can be continued until the operation of the application ends. Further, when the power of the main body is turned off, this is detected and an alarm message is displayed, so that the user can use it with peace of mind.

[Brief description of drawings]

FIG. 1 is a diagram showing a state in which display contents of a display unit are controlled according to a first embodiment of the present invention.

2A and 2B are a flowchart showing a control procedure based on an application power supply protection circuit diagram and a control program in a control unit of a second embodiment of the present invention.

3A and 3B are a circuit diagram and a flow chart of a second embodiment of the present invention.

FIG. 4A and FIG. 4B are explanatory views of the configuration of a conventional operation unit.

[Explanation of symbols]

21 LCD, 40 power switch, 41 commercial power supply,
42 relays, 43 control unit, 44 transistors, 5
0 relay.

Claims (3)

[Claims] 1. An operation unit including a basic unit in which keys for copy function are arranged, an application unit in which keys for composite function are arranged, a display unit, and each key on the operation unit is operated. In a digital copying machine having a control unit that enables selection of a specific function by performing a display or a display on the display unit, the control unit displays the display when any application function is operating. A digital copying machine characterized by performing control so as to display on the section that the function is in operation. 2. A relay for supplying commercial power to an application function circuit unit is connected in parallel to the power switch of the main body of the digital copying machine, and the control unit is operated during a period when the application function is operating. 2. The digital copying machine according to claim 1, wherein the relay is operated to control so that commercial power is supplied to the circuit unit. 3. A detection means for detecting ON / OFF of the power switch is connected to the main body power switch, and the control unit turns off the power switch during a period in which the application function is operating. 3. The digital copying machine according to claim 2, wherein an alarm message is displayed on the display section at times.