KR970010366B1 - Copy machine with zoom function - Google Patents

Abstract

None.

Description

Copying apparatus with shift function

1 is an explanatory diagram of an operation unit of a copying apparatus with a shift function according to the present invention.

2 is a block diagram of a control system.

3A to 4B are flowchart arts for explaining the operation of this embodiment.

5 is an explanatory diagram showing the state of a multiplier number indicator at the time of an alarm occurrence.

* Explanation of symbols for main parts of the drawings

1: control panel 2: copy key

8: Percentage indicator 9: Magnification indicator

100: MPU 102: ROM

104: RAM

The present invention relates to a copying apparatus with a shifting function capable of performing a copying operation by appropriately changing the copying ratio.

In a conventional copying apparatus with a shifting function, a copy ratio is set and input by a key input means on the operation panel, and desired shift copying is performed.

In such a copying apparatus, the operator presses the reset button to clear the setting mode after use, or the auto clear function automatically clears the setting mode after copying.

For this reason, when the copy magnification is set to equal magnification and is not cleared and is waiting, the operator does not notice it and presses the copy key to cause copy miss.

Therefore, Japanese Patent Application Laid-Open No. 61-188529 proposes a copying apparatus in which a device for emitting light is provided around the copy magnification indicator and the operator changes the display color of the light emitting device so as to notify the operator of the set magnification.

In the above-described prior art, since the light emitting device is in a copyable state even when the light emitting device changes, the operator may not notice the light emitting device and may cause miss radiation.

In recent years, the common use of the copy number display unit and the magnification display unit has been commercialized in accordance with the simplification of the operation panel unit.

These display units usually display the number of copies, and when the key for confirming the magnification or the key for setting the magnification is pressed, the water becomes solid from the copy number to the display of the magnification.

For this reason, when enlarged or reduced copying is performed by the previous operator, the next operator may copy without checking the set magnification when copying at the same magnification, which may cause miss copying.

The present invention provides a magnification setting means for setting a copy magnification, a copy key for instructing the start of a copy process, and a magnification set by the magnification setting means when the copy key is operated to solve the above problems. And a magnification determining means for judging whether or not this equal magnification is provided, and a warning means for canceling a copy start instruction by the copy key when it is determined that the magnification is not equal magnification by the magnification determining means.

According to the present invention, the copy operation is prohibited when the copy magnification is variable, thereby preventing miss copying due to unconfirmed copy magnification.

EMBODIMENT OF THE INVENTION Hereinafter, the Example at the time of applying this invention to a copying apparatus is demonstrated concretely based on drawing.

1 shows an operation unit 1 of a copying apparatus from one embodiment of the present invention.

In the operation unit 1, a copy key 2 for instructing the start of the copying process is provided at the right end.

On this box 2, a reset key 12 for releasing the set mode is provided by the key operation of the operation unit 1.

On the left side of the copy key 2, the number of sheets for setting the number of copies from 1 to 99 is canceled at the time of setting the number of copies, and the number of sets is canceled for continuous copying. Clear / stop keys 3 are installed.

The number of copies set by the number setting keys 4 and 5 is displayed on the indicator 9 on the left side.

This indicator 9 is a three-digit indicator composed of a seven segment indicator and the number of copies or magnification is displayed.

At the lower side of the indicator 9, a density indicator 10 for displaying the density of the radiant image is provided.

The density of the copy image is set by three keys 6 of up key, down key and auto key.

The auto key is operated to automatically set the density of the copy image, and the up key or the down key is operated to set the copy density manually.

When the radiation concentration is automatically set, the AUTO of the density indicator 10 is turned on, and when the radiation concentration is manually set, the set concentration is displayed in seven levels on the concentration indicator 10.

On the right side of the indicator 9 and the concentration indicator 10, a status indicator 7 is provided for indicating that a state such as jam, toner disappearing and no key counter is generated.

On the left side of the indicator 9 and the concentration indicator 10, keys 14 to 16 for setting the copy magnification are provided.

The key 14 is an equal key, and the key 15 is a magnification selection key for selecting six magnifications of up to 50 to 141%.

When the magnification selection key 15 is operated, the LED of the selection magnification among the LEDs 11 on it is lit.

The keys 16 are two magnification setting keys for arbitrarily setting the copy magnification of enlargement or reduction.

Then, when the keys 14 to 16 are operated or when the magnification confirmation key 13 is operated, the copy magnification set on the simultaneous display 9 in which the percentage indicator 8 lights up for several seconds is displayed.

2 is a block diagram of a control unit of a copying apparatus main body.

The copying device is controlled by a microcomputer system including a micro precessor unit (MPU) 100.

The microcomputer system includes a ROM 102 for storing a control program and the like connected to the MPU 100, and temporarily stores data when the control is performed by the MPU 100, and various flags required for control ( RAM 104 having a flag) area, and an I / O interface 106 for the MPU 100 to perform pressure control of the internal device.

The RAM 104 is also backed up by a backup battery 114 such as a lithium battery connected to the voltage Vcc.

When the voltage Vcc cannot be supplied, the backup battery 114 is given a voltage to the Vcc 104.

Therefore, even if the main switch of the copying device is interrupted, the data in the RAM 104 is protected.

The input port of the I / O interface 106 is inputted with the data of the key matrix 108 of the operation unit 1 and the output of the sensor circuit 110 including a jam sensor and the like.

In addition, a plurality of drive units 112 such as a motor and a solenoid are connected to the output port of the I / O interface 106.

Next, the control procedure of the MPU 100 configured as described above will be described based on the flowchart art shown in FIGS. 3A to 4B.

3A and 3B are fluorochar arts displaying main routines. First, in step S101, the copy key provided in the predetermined area of the RAM 104 clears the count value to zero (0), and then goes to step S103. It proceeds and judges whether or not the copy key is pressed. If pressed, the copy key increments the count value and proceeds to step S107. In step S107, it is determined whether or not a timer flag is set in the flag area of the RAM 104.

The timer flag is a flag set when the timer value started counting by the internal timer of the MPU 100 and a predetermined time pre-written in the ROM 102 after the copying process is finished. FIGS. 4A and 4B It is set to the interrupt routine shown in.

This interrupt routine is processed as an interrupt to the main routine at predetermined intervals by an internal timer of the MPU 100.

4A and 4B show the processing contents of the interrupt routine, and in step S201 it is determined whether the copying device is in a copyable state, and if yes, it proceeds to step S203 to determine whether copying is in progress.

If NO is determined in step S203, the flow advances to step S205, and it is determined whether the keys 12 to 16 relating to the copy magnification have been operated. If NO, the flow proceeds to step S207.

If NO in step S201 or YES in step S203 or S205 is determined, the routine proceeds to step S223, resets the timer flag, clears the timer value to zero, and returns to the main loop.

In step S207, the timer value is increased to proceed to the next step S209, and it is judged whether or not the timer value has reached the first set value written in the ROM 102 in advance.

If YES, then set the timer flag and proceed to step S213.

If NO, the flow advances to step S225 to determine whether the key of the operation unit 1 has been operated.

If YES is determined in step S225, the timer value is cleared to zero (step S227), and the flow advances to step S229 to reset the timer flag to return to the main routine.

If NO is determined, the flow advances to step S229 to reset the timer flag to return to the main routine.

In step S213, it is determined whether or not keys other than the keys 12 to 16 relating to the copy multiplication are operated.

If YES, the timer value is set in the above-described first set value (step S215), and then the flow proceeds to step S217.

If no, the process proceeds to step S217.

In step S217, it is determined whether or not the timer value has reached the second set value written in the ROM 102.

This second set value is a reference set value for operating the auto clear function forcibly releasing the mode set by the key operation of the operation unit 1.

If YES in step S217, the timer flag is reset, the timer value is cleared to zero, and the prohibition flag set in the flag area of the ROM 104 is reset (step S219), and the flow advances to step S221. .

In step S221, the copy key clears the count value to zero, clicks the number of copies, copy ratio, copy density, etc. set by the key operation of the operation unit 1, and then returns to the main routine.

If NO in step S217, the routine returns to the main routine.

If it is determined as YES in step S107, the flow proceeds to step S109 to determine whether the copy magnification is 100%.

If NO, the flow advances to step S111 to determine if the copy key has reached the count value of two.

If NO in step S107 or YES in step S109, the flow advances to step S113. The copy key clears the count value to zero, and then proceeds to step S123.

If NO is determined in step S111, after storing the number of copies in the RAM 104, the percentage indicator 8 is turned on, and the copy magnification is displayed on the indicator 9 and the copy prohibition flag is set.

The flow then advances to step S121.

That is, the states of the indicator 9 and the percentage indicator 8 become as shown in Figs. 5 (a) to (b).

If yes in step S111, the copy key clears the count value to zero (step S117) and then proceeds to step S119. In step S119, after storing the copy magnification in the RAM 104, the percentage indicator 8 is turned off, the number of copies is displayed on the indicator 9, and the copy prohibition flag is reset.

The flow then advances to step S121.

In step S121, it is determined whether the copy prohibition flag is set.

If YES, the flow returns to step S103. If NO, the flow goes to step S123.

In step S123, a series of copying processes are performed, and the flow advances to the next step S125.

In step S125, it is determined whether or not continuous copying is performed.

If YES, the flow returns to Step S123. If NO, the main routine is terminated.

In this way, in the present embodiment, when the timer value to start counting after copy end is equal to or greater than the first set value or less than the second set value, when the copy key 2 is operated, the copy magnification is displayed on the display 9 and the copy is prohibited. Since the flag is set, the copying operation is not performed, and the copying operation is performed for the first time when the chaser copying key 2 is operated.

In addition, in this embodiment, although the 1st setting value and the 2nd setting value are written in ROM102, you may make it the structure which inputs this by an operation part key, a DIP switch, etc., for example.

As described above, in the copying apparatus according to the present invention, when the operator attempts to enter the copying operation at the current copying magnification variation, the operator is given a warning by flashing the copying magnification and inhibiting the copying operation. Miss copying can be prevented.

In addition, since the warning means is executed only for a period from the elapse of a predetermined time after the end of copying until auto clearing, copying can be made irrespective of the warning means when changing the copy by replacing the operator's original.

Therefore, operability and economy are improved at the same time.

Claims (1)

A magnification setting means for setting the copy magnification, a copy key 2 for instructing the start of the copy process, and when the copy key 2 is operated, discriminating whether or not the magnification set by the magnification setting means is equal magnification. And a warning means for canceling a copy start instruction by the copy key when it is determined that the magnification is not equal by the magnification determining means.

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