JP2000343783A - Image-processing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form images with an appropriate timing by judging whether the paper is a control recording paper or a normal paper, and setting a color correction condition conforming to a type of the paper on the basis of control contents of the control recording paper. SOLUTION: Information indicating whether the paper is a color correction control recording paper or not is present at a position of a distance (a) from a leading end of the paper. Moreover, color correction control information is present after a position of a distance (b) from the position. When the color correction recording paper is supplied, a paper presence sensor detects whether or not a hole is present at a position 9 of the distance (a) from the leading end of the paper. When the hole is present, the paper is recognized as the color correction control paper. In this case, the paper is further sent by the distance (b) and detected whether or not a hole is present at a position 8. Transferring the paper by a distance (c) and detection with the use of the paper presence sensor are repeated afterwards. When a hole is detected at a position 7, 1.4 is set as a γ value. A computer corrects printing colors of input images with the use of the γ value and sends printing data to a printing apparatus.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an image processing apparatus for controlling color correction conditions using a control recording sheet.

[0002]

2. Description of the Related Art Conventionally, a computer performs color correction based on a user's instruction, and performs printing with a printing device.

[0003]

Conventionally, it has not been possible to set color correction conditions according to the type of paper on which an image is formed automatically. Therefore, conventionally, the color of the output image differs depending on the printing paper.

SUMMARY OF THE INVENTION It is an object of the present invention to be able to set color correction conditions according to the type of paper on which an image is formed at an appropriate timing.

[0005]

In order to achieve the above object, an image processing apparatus according to the present invention comprises: a determination unit for determining a control recording sheet and a normal sheet; and a reading unit for reading control contents from the control recording sheet. Setting means for setting color correction conditions based on the read control content; color correction means for performing color correction on input image data using the set color correction conditions; and performing the color correction. Image forming means for forming an output image on the normal paper based on the received image data.

[0006]

FIG. 1 is a sectional view showing the structure of a printing apparatus. FIG. 2 is a diagram illustrating an example of a color correction control recording sheet. In FIG. 2, a black frame indicates that a hole is formed in the sheet, and a four-frame indicates that only the display is performed and no hole is formed in the sheet.

Reference numeral 1 denotes a print cartridge support shaft, 2 denotes a print cartridge, 3 denotes a paper feed roller, 4 denotes a paper feed roller, 5 denotes paper, and 6 denotes a paper presence sensor.

Next, the processing when the color correction control recording paper is fed by the printing apparatus will be described.

As shown in FIG. 2, the color correction control recording sheet has a structure in which the control content is indicated by whether or not a hole is formed at a predetermined position. There is information indicating whether or not the present sheet is a color correction control recording sheet at a distance a from the beginning, and further, there is color correction control information at a position after a distance b from the sheet.

When the color correction recording paper 5 is fed, the following detection is performed by the paper presence sensor 6. First, the head of the paper is detected. Then, it is detected whether or not a hole is vacated at the position of 9 which has been sent a distance a from the head. If there is a hole as shown in FIG. 2, the sheet is recognized as a color correction control sheet.

If it is recognized that the sheet is a color correction control sheet, the distance sheet b is further fed. Then, it is detected whether or not a hole is provided at the position 8.

Thereafter, the paper feed for the distance of the set number b and the detection using the paper presence sensor 6 are repeated. In the case of FIG. 2, a hole is detected at the location 7 and 1.4 is set as the γ value.

The γ value set by the color correction control sheet is transferred from the printing device 10 of FIG. In the computer, manual print color correction is performed using the γ value transferred to the input image, and the print data is sent to the printing apparatus to perform printing.

According to this embodiment, the color correction can be automatically set by mixing the color correction control paper into the recording paper. Therefore, when printing using different recording paper, the color correction corresponding to the recording paper can be automatically set by inserting the color correction control paper where the type of the recording paper changes.

(Other Embodiments) In the above embodiment, the color correction control paper is prepared, but the color correction control paper itself may be printed.

Although the presence or absence of the color correction information is indicated by a hole, it is also possible to make a determination based on the color, shape, and the like.

Further, by utilizing the fact that the detection objection differs depending on the printing apparatus, color correction information for each printing apparatus may be set using one color correction control sheet.

Further, color correction control paper may be used for setting the paper size and the print mode.

[0019]

According to the present invention, it is possible to set color correction conditions according to the type of paper on which an image is formed at an appropriate timing.

Accordingly, it is possible to set a specific color correction for each type of printing paper, and it is possible to continuously feed printing papers having different characteristics.

[Brief description of the drawings]

FIG. 1 is a sectional view of a printing apparatus.

FIG. 2 is a diagram illustrating an example of a color correction control sheet.

FIG. 3 is a diagram illustrating a connection between a printing apparatus and a computer.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 1/46 H04N 1/46 Z 9A001 F term (Reference) 2C087 AA15 AB05 BB10 BD36 CA03 5B021 BB02 LG07 5B057 AA11 CC01 CE17 5C077 LL16 MP08 SS01 TT02 5C079 JA10 LA01 LA12 LB00 NA03 NA17 PA03 9A001 HH31 KK42

Claims (1)

[Claims] A determination unit configured to determine a control recording sheet and a normal sheet; a reading unit configured to read a control content from the control recording sheet; a setting unit configured to set a color correction condition based on the read control content; Color correction means for performing color correction on input image data using the set color correction conditions; and image forming means for forming an output image on the normal paper based on the color-corrected image data. An image processing apparatus comprising: