JP2787325B2 - Color image processing equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a color image processing apparatus.

[Related Art] In a color image processing apparatus, when density is corrected,
The density is adjusted without changing the color by correcting the density of each of a plurality of color materials forming a color image at once.

On the other hand, there is known a color image processing apparatus having a function of performing color adjustment by changing the density of a color material selected from a plurality of color materials (Japanese Utility Model Application Laid-Open No. 61-193460).

The manufacturer generally differs between a function of changing the density of the entire image without correcting the color (density correction function) and a function of changing the density of a color material selected from a plurality of color materials (color adjustment function). They are treated as functions, and the user interfaces for both functions are provided completely separately.

[Problems to be Solved by the Invention] In the sense of performing the operation of increasing or decreasing the recording material, in the conventional example, the result of the user instructing the density correction and the color adjustment and the display of the setting result regarding the density correction are displayed. Is displayed in a different display method from the display of the setting result regarding the color adjustment, and thus there is a problem in terms of ease of use for the user.

SUMMARY OF THE INVENTION An object of the present invention is to provide a color image processing apparatus which is easy for a user to use.

[Means for Solving the Problems] In order to solve the above problems, the color image processing apparatus of the present invention provides a density setting instruction to each of a plurality of color materials used for forming a color image independently of each other. Individual density setting means for performing, a collective density setting means for instructing a density setting collectively for all of a plurality of color materials used for forming a color image, and a density level set by the individual density setting means. And a collective density level display means for displaying the density level set by the collective density setting means, wherein each color material is displayed by the individual density level display means. The display of individual density levels and the collective display of density levels of a plurality of color materials by the collective density level display means can be executed by the same display method. It is characterized by.

[Embodiment] FIG. 1 shows an embodiment of the present invention, and shows a density setting unit and a density display unit in an operation unit of a color copying machine.

In the above embodiment, the operation unit 1 displays a density display LED array 2 capable of displaying nine levels of density, a C selection LED 3, an M selection LED 4, a Y selection LED 5, a K selection LED 6, and a set value of density. A density decrease key 7 for shifting to a lighter direction, a density increase key 8 for shifting a set value of density to a darker direction,
The colors displayed on the density display LED array 2 are Y, M, C, K,
Alternatively, it has a color selection key 9 for selecting one of YMCK common.

C selection LED3, M selection LED4, Y selection LED5, K selection LED6
Indicates the density setting values of C (cyan), M (magenta), Y (yellow), and K (black), respectively.
This is an LED indicating that it is displayed on the array 2.

In the density display LED array 2, in the above embodiment, F1 is the lightest density and F9 is the darkest density.

FIG. 2 is a circuit diagram showing an LED as an example of a display unit and a control circuit for controlling a key as an example of a density setting unit in the above embodiment.

The CPU 10 controls the LEDs 2 to 6, and the pull-down resistors 1 to 13 operate when the keys 7 to 9 are not pressed.
The input level of 0 is set to 0 volt, respectively.
The resistors 14-18 control the current flowing through the LEDs 3-6, and
6 is a resistor that determines the brightness.

The LEDs 2, 3, 4, 5, and 6 are configured to be turned on when the output of the CPU 10 is 0V, and turned off when the output of the CPU 10 is 5V.

Also, in the above embodiment, the nozzle was instantaneously heated,
A resistor 23-26 for a heater necessary for forming bubbles in the nozzle and ejecting ink onto paper, transistors 27-30 for controlling power supply to the heaters 23-26,
Resistors 19 to 22 for determining a base current for driving 27 to 30 are provided.

 Next, the operation of the above embodiment will be described.

FIG. 3 is a flowchart showing a process when a key is pressed in the above embodiment.

First, when a predetermined key is pressed, the CPU 10 is activated at a necessary timing, and when the activation is required, C, M,
It is checked whether or not the color selection key 9 for selecting a necessary mode from the independent setting modes of Y and K and the setting mode common to CMYK is pressed (S1). If the color selection key 9 has not been pressed and the density increase key 8 has been pressed to increase the density setting, it is currently selected among C, M, Y, K or CMYK and the density display LED array 2 The data is changed so that the set value of the displayed density is increased by one rank (S3).

For example, if C is selected and the set value of C is F3, C
Change only the set value of to F4. If the set value of C is F9, it is not possible to perform the setting for further increasing the density, so that the value is left at F9.

If the density decrease key 7 is pressed (S4),
The set value of the density currently selected among C, M, Y, K or CMYK and displayed on the density display LED array 2 is set to 1
The data is changed to make the rank lighter (S5). For example, if M is selected and the set value of M is F5, only the set value of M is changed to F4. Note that if the set value of M is F1, it is not possible to make any further setting to make it lighter, so that F1 is left as it is. Then, the key processing ends.

On the other hand, if the color selection key 9 is not pressed (S1), it is determined whether or not the density setting value of C is currently displayed on the density display LED array 2 (S7), and the density setting value of C is displayed. If so, the type of the density setting value displayed on the density display LED array 2 is changed to M (S11).

It is determined whether or not the density set value of M is currently displayed on the density display LED array 2 (S8). If the density set value of M is displayed, the density set value displayed on the density display LED array 2 is determined. Is changed to Y (S12).

It is determined whether or not the density setting value of Y is currently displayed on the density display LED array 2 (S9). If the density setting value of Y is displayed, the density setting value to be displayed on the density display LED array 2 is determined. Is changed to K (S13).

If none of C, M, and Y is selected and K is selected (S10), CMYK common is selected (S14). If K is not selected, the density is displayed on the density LED array 2. The type of the density setting value to be performed is changed to C (S15), and the key processing ends.

FIG. 4 shows an LED corresponding to a color corresponding to a set value selected from among C, M, Y, and K in the above embodiment.
6 is a flowchart showing an operation of displaying.

If the color selected by the color selection key 9 is C (S2
1) The output level of LED-C of CPU10 is 0V, LED-M, LED
-Set the output level of Y, LED-K to 5V, turn on the C selection LED 3 indicating that C is selected, and turn on LEDs 4, 5, 6 indicating that M, Y, K are selected. Turns off (S2
6).

Then, according to the density setting value of C, the LED-F1 to
One of the outputs of the LED-F9 is set, and the density setting value (the density setting content) is displayed on the density display LED array 2 (S2
7) End the display processing.

On the other hand, if the color selected by the color selection key 9 is M (S22), the output level of the LED-M of the CPU 10 is set to 0V, LED-C,
The output levels of the LED-Y and LED-K are set to 5V, the M selection LED 4 indicating that M is selected is lit, and the LEDs 3, 5, 6 indicating that C, Y and K are selected. Turn off (S2
8).

Then, according to the density setting value of M, the LED-F1 to
One of the outputs of the LED-F9 is set, and the density setting value (the density setting content) is displayed on the density display LED array 2 (S2
9), end the display processing.

If the color selected by the color selection key 9 is Y (S23), the output level of the LED-Y of the CPU 10 is set to 0V, the LED-C,
The output levels of the LED-M and LED-K are set to 5V, the Y selection LED 5 indicating that Y is selected is lit, and the LEDs 3, 4, 6 indicating that C, M and K are selected. Turn off (S3
0).

Then, according to the density setting value of Y, LED-F1 to
One of the outputs of LED-F9 is set, and the density setting value (density setting content) is displayed on the density display LED array 2 (S3
1), end the display processing.

If the color selected by the color selection key 9 is K (S24), the output level of the LED-K of the CPU 10 is set to 0V, LED-C,
The output levels of the LED-M and LED-Y are set to 5V, the K selection LED 6 indicating that K is selected is turned on, and the LEDs 3, 4, 5 indicating that C, M and Y are selected. Turn off (S3
2).

Then, according to the density setting value of K, the LED-F1 to
One of the outputs of LED-F9 is set, and the density setting value (density setting content) is displayed on the density display LED array 2 (S3
3) End the display processing.

If the color selected by the color selection key 9 is not any of C, M, Y and K (S24), the LED-M and LED-
Set the output level of C, LED-Y, LED-K to 5V,
3, LED4, LED5 and LED6 are turned off (S34).

Then, according to the density setting value common to CMYK, the LED of the CPU 10
-F1 to LED-F9 output, set to CMYK
The common density setting value (density setting content) is displayed on the density display LED array 2 (S35), and the display processing is terminated.

FIG. 5 is a flowchart showing an operation for performing a single color copy in the above embodiment.

When the copy operation starts and density processing is required,
It is determined whether or not any of the density setting values is the highest value (F9 in the above embodiment) (S41). If there is no image having the highest density value F9, the C component of the image is input from the input terminal of the control CPU 10 (S42). Is calculated to obtain the target density value (S43), and the obtained C is calculated.
Is output from the output terminal INK-C terminal of the CPU 10 (S44).

FIG. 6 and FIG. 7 are views showing the principle of a bubble jet for producing a color in a color copying machine in the above embodiment.

In the above case, for example, in order to eject ink C, the heater 23 for C is turned on as shown in FIG. 7 from the state where the heater of FIG. C
The ink I is output toward the paper 32, the color of C is output, and the process ends.

The details of how to obtain the density, the ejection of the ink, and the like are omitted. Although the above description is for the ink for C, the same applies to the inks for M, Y, and K.

In FIG. 5, the darkest density F9 is set
If F9 has been set for a plurality of colors, the color with the density F9 set last is registered (S46), and if the density F9 is set for only one color, the color is registered. I do.

Then, image data information of Y, M, C, K is input from the input terminal of the CPU 10 and changed to the registered color data (S47), and the changed color data is output to the output terminal INK- of the CPU 10. Output from the corresponding terminals of C, INK-M, INK-Y, and INK-K (S48), output a single color, and set the output terminal of the unselected color to 0 V. The transistors 27 to 30 are controlled so that power is not applied to heaters that are not required.

Although the above-described embodiment has been described with respect to a copying machine, the same applies to a device for outputting a color image (for example, a printer or a facsimile device).

According to the present invention, in a color image processing apparatus, the setting states of different functions such as a color adjustment function and a density correction function can be displayed by the same display method. This makes it possible to easily confirm the color adjustment and the density correction in the apparatus and to easily recognize the density setting state of each color material.

[Brief description of the drawings]

FIG. 1 shows one embodiment of the present invention, and shows a density setting unit and a density display unit in an operation unit of a color copying machine. FIG. 2 is a circuit diagram showing an LED as an example of a display unit and a control circuit for controlling a key as an example of a density setting unit in the above embodiment. FIG. 3 is a flowchart showing a process when a key is pressed in the above embodiment. FIG. 4 is a flowchart showing an operation of displaying an LED corresponding to a color corresponding to a set value selected from among C, M, Y, and K in the above embodiment. FIG. 5 is a flowchart showing an operation for performing a single color copy in the above embodiment. FIG. 6 and FIG. 7 are views showing the principle of a bubble jet for producing a color in a color copying machine in the above embodiment. 1 ... operation section, 2 ... density display LED array, 3 ... C selection display LED, 4 ... M selection display LED, 5 ... Y selection display LED, 6 ... K selection display LED, 7 ... density Decrease key, 8: Density increase key, 9: Color selection key

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03G 13/01 G03G 15/01-15/01 117 G03G 15/00 303 G03G 21/00 370-540

Claims (1)

(57) [Claims] An individual density setting means for instructing a density setting independently of each other for each of a plurality of color materials used for forming a color image; all of the plurality of color materials used for forming a color image Collective density setting means for instructing density setting collectively with respect to: individual density level display means for displaying the density level set by the individual density setting means; density set by the collective density setting means A collective density level display means for displaying levels; and a display of individual density levels of each color material by the individual density level display means, and a plurality of color materials by the collective density level display means. Wherein the collective display of the density levels is executed by the same display method.