KR960006806B1 - Control method for starting function of an automatic copying - Google Patents

Abstract

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Description

Control Method for Automatic Copy Start Function of Copier

1 is a block diagram schematically showing the configuration of a control circuit for the automatic copy start function of a copying machine to which the present invention is applied;

2A and 2B are block diagrams showing an embodiment of a control method for an automatic copy start function of a copier according to the invention

* Explanation of symbols for the main parts of the drawings

1: operation and display unit 2: temperature detection unit

3: central processing unit (CPU) 4: optical motor drive unit

5: scanner motor 6: ROM

7: RAM 8: Ain motor driving current buffer

9: Ein motor

The present invention relates to a driving control method of a copying machine, and more particularly, to a control method for an automatic copying start function of a copying machine which controls to start a copying operation according to a specified specification as soon as a copying start key is inputted to the device. will be.

In general, the copier can perform the radiation operation only when the temperature of the fixing unit reaches a certain temperature. Therefore, the conventional copier waits in front of the copier for a predetermined time after turning on the power, and then emits a signal (e.g., emits a copyable display element or emits a constant sound through the buzzer) indicating that the copier is capable of copying. In addition to the need to perform the copy after recognizing), there were some uncomfortable problems in use such that no operation keys were entered before the copier became copyable.

The present invention has been made to solve the above problems, and when the copy start key is pressed in the power-on state, the copying machine is controlled to start the copying operation according to a specified specification as soon as the copying state becomes available after a predetermined time, thereby facilitating user convenience. Its purpose is to provide a control method for the automatic copy start function of.

In order to achieve the above object, the present invention provides a user with mode selection and various copying specifications, and an operation and display means for displaying the selected contents, measuring the temperature of the fixing unit heater and converting the detected temperature into digital data. Connected to the operation and display means and the temperature detection means, and controls the overall operation of the entire apparatus and is set when the temperature data inputted from the temperature detection water reaches a predetermined temperature value. According to the present invention, there is provided a central processing unit (CPU) for controlling the operation of each unit, and a copier having a ROM and a RAM connected to the central processing unit for storing programs and various data necessary for control. In the control method by the automatic copy start function, check the state of the motor status flag, and the current execution mode. The first step is to check whether the copy mode is in the test mode or the RAM status check mode which is driven without actual copying, and whether the automatic copy start key input is possible by checking whether the current copy machine is in an error state. ; If the automatic copy start key input is enabled, a second step of checking whether the automatic copy start key light emitting device (LED) is already on and checking whether another mode selection key is input; A third step of confirming whether or not the current state is a copyable state after checking the designated cassette stage flag state; After confirming that the auto copy start key has been entered, check the on / off status of the auto copy start key LED, and if it is already on, reset the auto copy start mode to the normal copy mode, and if it is off, A fourth step of turning on the copy start key LED so that the user recognizes that the automatic copy start mode is set; It is determined whether the temperature of the fixing unit reaches a preset proper temperature, and if the temperature is lower than the proper temperature, it maintains the standby state and recognizes that the state is impossible to copy. When it is determined that the proper temperature is reached, the automatic start delay casant 1 is determined. A fifth step of waiting for the automatic start delay count value to be equal to a predetermined predetermined value while increasing in increments: and jumps to the copy initialization mode to initialize and count up the drum pulse, and recognize that it is not in a standby state, And a sixth step of clearing the automatic copy start count and all set flags that have been set in the meantime, and then gumping into a known copy execution routine.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing the configuration of a control circuit for an automatic copy start function of a copying machine to which the present invention is applied, where l is an operation and display unit, 2 is a temperature detection unit, and 3 is a central processing unit (CPU). ), 4 is an optical motor driver, 5 is a scanner motor, 6 is a ROM, 7 is a RAM, 8 is a main motor driving current, and 9 is a main motor.

As shown in the drawing, the copier to which the present invention is applied is a control circuit using an automatic copy start function, which allows a user to select various mode selections and various copying specifications and displays the selected contents to recognize the selected contents. 1) and a temperature detection sensor such as a dummyister for measuring the temperature of the fixing unit heater and an analog / digital converter, which converts the detected temperature into digital data and then sends it to the central processing unit. It is connected to the temperature detecting unit 2 to be applied, the operation and display unit 1 and the temperature detecting unit 2, and controls the overall operation of the device. In particular, the temperature data input from the temperature detecting unit 2 is a predetermined temperature. When the value is reached, the central processing unit (CPU) 3 which controls the operation of the peripheral parts according to the set operation mode and the scanner motor 5 under the control of the central processing unit 3 are constructed. And a ROM and RAM 6 and 7, which are connected to the optical motor drive unit 4 and the central processing unit 3, and which store programs and various data necessary for controlling the present invention. The main motor drive heating and buffering part 8 which drives the main motor 9 under the control of the central processing part 3 is provided.

A copy start key ('' PRINT '' key, '' START '' key) for executing the copy operation after selecting the desired copy specification on the operation and display unit 1 is provided, the automatic copy start function of the present invention The copy start key may be performed by pressing the copy start key, and an auto start key ('' AUTO PRINT '' key, '' AUTO START '' key) is disposed separately to provide the automatic copy start function of the present invention. It can be distinguished from the general copy start function of. In the present embodiment, the latter case is adopted as an example in order to clearly distinguish from the conventional case.

In the copying machine, the copyable or impossible state is determined based on the temperature of the fixing unit. Conventionally, when the temperature of the fixing unit does not reach the set temperature, the central control unit 3 does not accept the copy start key input. In this case, the user cannot specify the copyable mode even after the user turns on the power and before the user becomes copyable. However, in the present invention, even before the fixing unit temperature reaches a state in which the fixing unit temperature can be radiated (it varies according to the type of copier, but is usually 175 ° C or higher), 24V in the device may occur due to jam or service man call. Except when the power is OFF, all key inputs are accepted and the input state can be saved.

Thus, after the user turns on the power, the user specifies a desired copy specification immediately. For example, the number of copies is designated as a predetermined number, the image density is adjusted, and the magnification ratio is changed to a state capable of split copying. After pressing the automatic copy start key, the central processing unit 3 finally presses the automatic copy start key after selecting the image erasing or erasing function and inputting the horizontal and vertical axis data therefor. After storing the key input state, the output data of the temperature detection unit 2 is periodically checked. When the output date of the temperature detection unit 2 finally reaches a predetermined value or more, the optical motor driving unit 4 and the main motor 9 which drive the scanner motor 5 as the central processing unit 3 has already known. By controlling the main motor drive current buffer unit 8 for driving the respective, the copy operation is automatically made according to the selected specifications.

Thus, after the user selects copyable according to the present invention, the user can go back into place and perform other tasks without having to wait in front of the copy machine.

Now, an embodiment of the control method according to the present invention will be described.

2A and 2B are flowcharts showing an embodiment of a control method for an automatic copy start function of a copying machine according to the present invention. First, it is determined whether the main motor 9 and the scanner motor 5 operate. In order to determine the state of the motor state flag Flag (20). This is to prevent the control according to the present invention from being performed during the copying operation in which the motor is driven. If it is determined that the motor state flag is in the ON state, it is returned immediately. Then, it is checked whether or not the current execution mode is an experimental mode driven by a state in which no actual copy is made. In this embodiment, a freerun is driven without paper feeding to check the operation state of the copier itself. It is checked whether the mode 21 and the FOR-MING mode 22 to preset the drum condition of the developing part in advance and return to it as soon as it is confirmed that the current execution mode is the experimental mode. . Similarly, it is checked whether the current mode is the RAM status check mode (23), and if the RAM status is checked, the automatic copy start function according to the present invention is performed by returning immediately even if the automatic copy start key is input. Do not

Further, if the current copier is in an error state, that is, whether the user call processing mode 24 or the serviceman call processing mode 25 due to jam occurrence, toner supply, waste toner recovery, etc. is checked and the flag of the mode is on, Even if the automatic copy start key is input, the automatic copy start function of the present invention is prevented from being performed immediately. In this case, the operation state and the display unit 1 output and display the corresponding error state.

As a result of checking the above various flags, if the automatic copy start key input is possible, first confirm whether the automatic copy start key light emitting device (LED) is ON (26), and then check whether another mode selection key is input. (27). At this time, when the automatic copy start key light emitting device (LED) is on (ON) but the other mode selection key is applied (27) immediately after turning off the automatic copy start key light emitting device (LED) (28), It is returned after resetting both the automatic copy start count and the automatic copy start key input flag (29). However, when the automatic copy start key LED is on and there is no other mode selection key input (27), and when the automatic copy start key LED is off (26), the designated cassette stage flag state is checked ( 30. If it is not specified, it is returned, and if it is specified, it is determined how many stages the cassette is, and then it is checked whether or not the current state is a copyable state (31).

That is, it is determined by the output data of the temperature sensing unit 2 whether or not the fixing unit is heated to an appropriate temperature, and if it is not yet ready to copy, it is checked whether the automatic copy start key has been input (32). At this time, if the automatic copy start key is not input, the automatic copy start key is returned. If the automatic copy start key is input, the automatic copy start key LED on the operation and display unit 1 is checked (35). If the key LED is on, the automatic copy start mode is reset (36), the buzzer is driven once (37), and as described above, the automatic copy start key light emitting element (LED) is turned off (28), and the automatic After the copy start count and auto copy start key input flag are both reset (29), the operation returns to the normal copy mode. This is because, in order to release the selected automatic copy start mode, the user presses the automatic copy start key, which is toggled, continuously and once more.

If the result of checking the state of the automatic copy start key LED in the process 35 is off, the automatic copy start key LED is turned on (38), and a buzzer is driven once to allow the user to set the automatic copy start mode. It can be recognized (39). Then, it is judged whether or not the temperature of the fixing unit reaches a preset proper temperature (40). If the temperature is below the proper temperature, the system stop flag (SYSTEM STOP FLAG) is checked (42) and turned on (43). This ensures that the standby state is maintained at the same time, and that the copy is not recognized.

However, if it is determined that the result confirmed in the temperature determination process 40 of the fixing unit has reached the appropriate temperature, the state of the system stop flag (SYSTEM STOP FLAG) is checked (41). If it is determined that the result of the copyable state determination process 31 is a copyable state, the state of the system stop flag is immediately checked (41). Thus, if the system stop flag is surely turned ON, the auto start delay count value is increased by one (44), and then the predetermined value (which is set to 255 in this embodiment) is determined in advance. Check if it is (45). However, if the result of checking the system stop flag state 41 is OFF, the automatic copy start key LED is turned off (28) as described above, and the automatic copy start count and automatic copy are performed. After all start key input flags have been reset (29), they are returned to normal copy mode.

If the result value in the automatic start delay count value checking process 45 is smaller than a predetermined value, the count value is repeatedly increased by 1 at regular intervals until the value is equal to the predetermined value. (44, 45) Then finally, when the auto start delay count value is equal to a predetermined value, jump to the initial copy mode (46), initialize the drum pulse (DRUM) pulse, and count up. (47).

Then, the system stop flag is released to indicate that it is not in the WAIT state (48), the auto copy start count that has been set in the meantime is cleared (52), and all flags set for the auto copy start function are cleared. Then, 50 jumps to a known copy execution routine and performs a copy operation (51).

FIG. 2B is a flowchart showing the state processing at the point of completion of copying. When switching from the copy mode to the standby mode, it is first checked whether the copy stop flag is turned on (60). This flag is set when an error mode or interrupt mode is completed or when copying is completed. If it is not set, it is returned immediately. If it is set, check whether the main motor 9 is ON. (61). Thus, if the main motor is in the on state, it is returned immediately, and if it is in the off state, it is checked whether the copy operation is performed for the set number of copies (62). If the copy is not performed for the set number of copies, the method returns to continue the copy mode. If the copy is completed for the set number of copies, the automatic copy start LED state is finally checked (63). At this time, if the automatic copy start LED is turned on (ON), the LED is turned off ([] FF), and the buzzer is driven five times to inform the user that the automatic copy start mode is completed (64). After returning to 65, the automatic copy start LED is immediately returned if it is OFF.

Thus, when the automatic copy start key (or copy start key, '' is pressed while the power is on, the copy operation is automatically started according to the specified specification as soon as the temperature of the copying unit's fixing unit becomes copyable, and the user copies. Do not need to wait unnecessarily in front of you.

Therefore, the present invention operating as described above enables the setting of the copy mode of the desired specification by enabling all the key inputs even in the non-copy impossible state in which the fixing unit is not yet preheated to an appropriate temperature, and the fixing unit is made in the copyable state. By immediately performing the copy operation automatically according to the selected specification, it has the effect of enhancing the convenience of use.

Claims (3)

Operation and display means (1) for allowing a user to select a mode and various copy specifications, and to display the selected contents, and a temperature detection means for measuring the temperature of the fixing unit heater and converting the detected temperature into digital data and outputting the digital data. (2) and connected to the operation and display means and the temperature detection means to control the overall operation of the entire apparatus and according to the operating mode set when the temperature data input from the temperature detection means reaches a predetermined temperature value. A central processing unit (CPU) 3 for controlling the operation of each unit, and ROMs and RAMs 6 and 7 connected to the central processing unit and storing programs and various data necessary for control. In the control method for the automatic copy start function of the copier provided, the state of the motor status flag is checked and the current execution mode does not actually copy. A first step of determining whether the automatic copy start key input is possible by checking whether the test mode is driven in a state or a RAM state check mode and whether the current copy machine is in an error state; If the automatic copy start key input is enabled, check whether the automatic copy start key light emitting device (LED) is already on, check whether other mode selection keys are input (26, 27), and second step; After checking the designated cassette stage flag status, check whether the current status is copyable (30, 31). Step 3: After confirming that the automatic copy start key has been entered, the automatic copy start key LED is turned on. Check the off status, if it is already on, reset the automatic copy start mode to switch to the normal copy mode, and if it is off, turn on the automatic copy start key LED so that the user recognizes that the automatic copy start mode is set ( 32 to 39) a fourth step; If it is determined that the temperature of the fixing unit has reached the preset proper temperature, it maintains the standby state if the temperature is lower than the predetermined temperature, recognizes that the copy is impossible, and if it is determined that the proper temperature is reached, the automatic start delay count is 1. Step 5: waiting for the automatic start delay count value to be equal to a predetermined predetermined value while increasing in increments (41 to 45): jump to the initial copy mode, and initialize and count up the drum pulse, and the standby state Automatic copying of the copier, comprising a sixth step of recognizing or not clearing the automatic copy start count and all the flags set in the meantime, and then jumping (46 to 51) to a known copy execution routine. Control method for start function The control method as claimed in claim 1, further comprising a seventh step of switching back to the standby mode at the completion of copying after the sixth step. 3. The method of claim 2, wherein the seventh step comprises: checking (60) a copy stop flag state; When the copy stop flag state of the first process is on, it is determined whether the main motor is on (61). If the main motor of the second process is off, the copy operation is performed by the set number of copies. If it is confirmed that the execution of the third process and the result of the third process have been completed by the set number of copies (62), the automatic copy start LED state is checked, and if it is on, the LED is turned off and the buzzer is turned off. And a fourth process of returning to the copy standby mode after notifying the user that the automatic copy start mode is completed by driving a predetermined number of times.