JPH0937087A - Color facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a color facsimile equipment whereby color slurring caused at the time of reading a color original, etc., is corrected. SOLUTION: The equipment is constituted by storing image data read from a reading part 51 in a storage part 52, printing the stored image data and starting a color slurring correction processing part 53 at the time of color slurring so as to operate color slurring correction by the hand of an operator. It is also constituted in such a way that data is transmitted with a personal computer 80 and the color slurring correction processing can be executed from the personal computer 80. Therefore, at the time of color slurring in image data at the time of reading the original or receiving data, color slurring can be corrected at every development color by the hand of the operator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color facsimile machine used for communication and the like.

[0002]

2. Description of the Related Art In recent years, printing machines such as printers and copiers,
In addition, copying machines are being changed from monochrome printing to color printing. An outline of a color electrophotographic copying machine is shown as an example of a conventional technique.

In FIG. 9, 1 is a photosensitive drum and 2 is a charger. Around the photosensitive drum 1, a developing device 3 having developing units 4a (yellow), 4b (magenta), 4c (cyan), and 4d (black) that use a developer in which toner and carrier are mixed is arranged. . Further, 5 is an exposure device for forming a latent image on the photosensitive drum 1, 6 is a transfer drum, 7 is a static eliminator for removing a potential charged on the photosensitive drum, 8 is a cleaning device for removing toner remaining on the photosensitive drum, 9 Is a toner collecting device for collecting the toner cleaned by the cleaning device 8 and is arranged around the photosensitive drum 1. Fixing device 1 around these
0, the sheet feeding device 11 is arranged.

Next, these operations will be described. First, after the photosensitive drum 1 is charged by the charger 2, the original is read by the optical system and converted into an electric signal or the like, and the exposure device 5 forms a latent image on the photosensitive drum 1.
Then, the toner is attached to the photosensitive drum 1 by the developing device 3, and then transferred to the paper fed from the paper feeding device 11 by the transfer drum 6. After the transfer, fixing is performed by the fixing device 10. After this fixing, the transferred paper is ejected.

After that, the toner remaining on the photosensitive drum 1 is removed by the cleaning device 8, and the cleaned toner is collected by the toner collecting device 9. After the toner is removed from the photosensitive drum 1, the electric potential charged on the photosensitive drum 1 is removed by the static eliminator 7. Printing is performed by the above steps.

However, in the case of a color apparatus, the steps of charging, exposing, developing, transferring, and cleaning are performed for each developing color, that is, for each of yellow, magenta, cyan, and black, and after the transfer of each developing color is completed. The fixing is performed, and the paper is ejected at the end.

[0007]

In the above-mentioned conventional example, since transfer is performed for each developing color, the transfer position for each developing color may be shifted due to various factors, and a color shift may occur in the printed image. In a facsimile machine having the image forming apparatus, information may not be transmitted accurately.

It is an object of the present invention to provide a color facsimile apparatus capable of correcting a color shift by an operator's hand.

[0009]

In order to solve the above problems, the present invention has means for correcting color misregistration for each color, means for transferring data with a personal computer, and
It has a structure having means for transferring data, correcting color misregistration, and means for changing hue on the display of a personal computer.

[0010]

According to the present invention, when the document is printed and it is determined that the color misregistration occurs, the color misregistration correction processing unit processes the image data having the color misregistration from the storage unit according to the above configuration. The color misregistration is corrected by inputting the respective correction amounts for the respective developing colors having the misregistration by the input means, and processing the image data based on the correction data by the color misregistration correction processing section.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a facsimile apparatus according to the present invention will be described below with reference to the drawings.

This embodiment will be described with reference to FIGS. 1, 2, 3 and 4. 1 is a processing unit 50 that performs each processing of the facsimile apparatus. Reference numeral 51 denotes a reading unit including a CCD or the like, which reads a document and converts it into an electric signal. A storage unit 52 stores the image data read by the reading unit 51.

A printer unit 54 prints the image data stored in the storage unit 52. First, the color original to be transmitted is set, and the transmission original is read by the reading unit 51. At this time, image data is read for each developing color. The read image data is directly stored in the storage unit 52.
The image data is stored in the storage unit 52. After reading the original, the color misregistration correction process is activated in order to check whether there is any color misregistration.

When the color misregistration correction process is activated, first, the processing unit 50 takes out the image data just read from the storage unit 52 and sends it to the printer unit 54 for printing. Further, an item of color misregistration correction is displayed on the display unit 62 of the facsimile device 60.

At this time, when printing is completed, the operator can judge whether or not the color misregistration occurs by looking at the output paper. If the operator determines that color misregistration has occurred on the paper output at that time, a submenu for color misregistration correction is displayed on the display unit 62 of the facsimile device 60 as shown in FIG. From this submenu, the operator selects the function key 61 or the numeric keypad 63 installed on the surface of the facsimile device 60.
Choose to correct the color shift. After the correction of the color misregistration is selected, the display section 62 displays as shown in the figure.

In the color misregistration correction process, each developing color yellow,
Items are divided to correct color misregistration for each of magenta, cyan, and black, and the operator determines which development color is offset and to what extent, and uses the function key 61 or numeric keypad 63 from the submenu screen to select the color. Select the color you want to correct the gap. When the color to be corrected is selected, the display unit 62 becomes the display as shown in the figure. Then, the operator inputs the shift of the color shift in [mm] units by using the up / down keys or the ten-keys 63, by how much the image data of the selected color is shifted up / down / left / right.

The amount of color misregistration data input by the operator is stored in the RAM 55 from the color misregistration correction processing unit 53. These operations can be performed for each of the four developed colors. The correction amount is set by selecting the set after inputting the correction amount by this operation.

When the correction amount is set, the correction process is performed for each developing color. The processing is as shown in FIGS. First, the correction amount data set for a certain color is read from the RAM 55. The image data of each color has a pixel number of 172 in the main scanning direction on A4 paper, for example.
Since it is 8, it is known how many millimeters each pixel corresponds to. The sub-scanning direction also changes depending on the mode in which the original is fed, but by checking the transmission mode at that time, it is possible to know how many millimeters a line is.

These values are calculated from these information because the document size and mode are known when the document is read by the reading section 51. Therefore, the color misregistration correction processing unit 53 determines the correction amount read from the RAM 55.

When the color shift correction processing unit 53 confirms the correction amount, the image data of the color to be corrected is read from the storage unit 52 into the color shift correction processing unit 53. Then, the right and left portions of the read correction amount, that is, the main scanning direction is corrected.
At this time, the correction processing calculates how many pixels the read image data is moved to the left and right from the value of how many millimeters are corrected to the left and right. The data representing the position of the image data read from the storage unit 52 is corrected by the calculated value.

At this time, since the image data is represented by bitmap data, the position of the color to be corrected is moved to the left or right as a whole, that is, the image data is moved in the main scanning direction in the correction direction.

Next, in the vertical direction, that is, in the sub-scanning direction, the RAM 55 is basically the same as the main scanning direction described above.
The correction amount set in the color misregistration correction processing unit 53 is read and the number of lines to be moved in the sub-scanning direction is calculated from the value of the correction amount in the sub-scanning direction. From the calculated value, the correction value is added to the data representing the position of the image data in the sub-scanning line direction for correction. Also at this time, the image data is moved up and down by the amount to be corrected, that is, in the sub-scanning direction.

When the correction is made in the main scanning line direction and the sub scanning line direction, the corrected image data is stored in the storage unit 52.

Next, the corrected image data is stored in the storage unit 52.
When the storage of the image data is completed, the information table of the image data stored in the storage unit 52 is taken out. This information table shows information such as the size of the image data. The above-mentioned color misregistration correction information is added to the image data information table, and the image data information table is rewritten.

When the correction amount of this color misregistration is added to the information table of the image data, the correction amount is added with the position read first as the origin, so that the original read original can be reproduced. .

After rewriting the information table of the image data, the processing unit 50 takes out the corrected image data and transfers the data to the printer unit 54 for printing.
When the operator looks at the output sheet and determines that the color misregistration correction is completed, the operator selects the end in the menu screen displayed on the display unit 62. When the operator selects the end, the correction processing of the color misregistration is ended and the transmission is switched to the facsimile.

However, if the color misregistration still occurs on the output paper after the color misregistration correction, the operator selects the color misregistration correction without selecting the end, and the above-mentioned operation is performed again. The process is to correct the color misregistration, and the same process as the above-described operation is repeated until the color misregistration disappears.
At this time, the correction amount of the color misregistration added to the information table is increased or decreased from the latest correction amount of the color misregistration. Therefore, the position of the image data of the original read first can be calculated.

When the color shift is eliminated, the operator selects the end from the menu of the display section 62. If this termination is selected, the color misregistration correction processing is terminated and the procedure for facsimile transmission is started.

Further, as shown in FIG. 5, the facsimile apparatus 60 having the above-mentioned color misregistration correction means has an interface 56 which enables data transmission / reception with a personal computer 80 (hereinafter referred to as PC), and the facsimile apparatus A reference numeral 60 designates an interface 56 for the original read by the reading section 51 and the received facsimile data.
Can be sent to the PC 80 via.

First, the facsimile device 60 is registered in the PC 80 as a device driver of the PC 80. After the registration, data can be transmitted / received to / from the PC 80.

To send and receive image data to and from the PC 80, press the function key 61 of the facsimile device 60 to select P from the menu displayed on the display unit 62.
Select to send or receive to C80. When the transmission / reception processing to the PC 80 is selected, the transmission / reception processing to the PC 80 is activated. When the process is activated, the image data to be transmitted is determined from the display unit 62 using the function key 61 to determine which image data is to be transmitted next to the PC 80.

When the image data to be transmitted to the PC 80 is decided, the decided image data is processed by the processing unit 5.
0 has a unit for reading the selected image data from the storage unit 52 and transferring the image data to the PC 80 through the interface 56 as a file in the bitmap data format. At this time, the facsimile device 60
By registering as a device driver in PC80,
The facsimile device 60 can also be used as a printer for the PC 80.

In the facsimile device 60, when a command is issued from the PC 80 to the image data read by the reading unit 51 and stored in the storage unit 52, the processing unit 50 of the facsimile device 60 interprets the command. A list of image data stored in the storage unit 52 at that time can be displayed on the display of the PC 80.

On the display screen of the list, the operator
By using the mouse 82 of 0 or the cursor key, the cursor is moved to the position of the image data to be read. In this way, the cursor key is brought to the image data to be displayed, and the operator designates it by the enter key of the PC 80 or the double click of the mouse 82 to determine the image data to be displayed.

When the image data to be displayed is determined, the PC 80 receives the above-mentioned enter key or the double-click command of the mouse 82 and performs the data transfer process.

In the data transfer process, a command for transferring data is issued to the facsimile device 60. Upon receiving this command, the facsimile device 60 returns to the PC 80 a command indicating whether or not transfer is possible. When the PC 80 receives this command and can transfer it, it sends a command to the facsimile device 60 with the name of the image data to be transferred.

When the facsimile device 60 receives this command, the designated image data is transferred to the PC 80. The transferred image data is transferred in the bitmap data format as described above. The hue of the transferred image data can be changed by using an application (for example, a draw tool) of the PC 80 that can handle the bitmap data.

Further, the above-described color misregistration correction processing is executed by the PC 8.
A means for displaying the processing on the screen of 0 is provided, and by using the enter key or the cursor key of the keyboard 81 of the PC 80 or the mouse 82, each development color whose color misregistration is to be corrected is designated.

Further, regarding the correction amount, the correction amount is determined by the ten key 63 on the keyboard 81 or the mouse 82.
When the correction amount is determined, the color to be corrected and the correction amount data are transferred from the PC 80 to the facsimile device 60.

In the transferred facsimile device 60, the processing unit 50 performs the correction processing based on the data. And P
In the case of the color misregistration correction on the C80, the display is performed when the color misregistration correction is performed on the display and printing is performed. Then, the operator confirms on the display. By repeating the above operation until the color misregistration disappears, the color misregistration can be corrected.

[0041]

As described above, according to the present invention, the color misregistration of the color original read at the time of the facsimile transmission can be corrected by using the structure for correcting the color misregistration in the facsimile apparatus. Further, since data can be transmitted and received between the facsimile device and the personal computer, color misregistration can be corrected from both the facsimile device and the personal computer. There is no transmission error of information due to color misregistration, and accurate transmission of information to the receiver etc. can be performed.

[Brief description of drawings]

FIG. 1 is a block diagram of a facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of a facsimile apparatus according to an embodiment of the present invention.

FIG. 3 is a flowchart of a facsimile apparatus according to an embodiment of the present invention.

FIG. 4 is a flowchart of a facsimile apparatus according to an embodiment of the present invention.

FIG. 5 is a configuration diagram of a facsimile apparatus according to an embodiment of the present invention.

FIG. 6 is a diagram showing an example of a menu screen of the facsimile apparatus according to the embodiment of the present invention.

FIG. 7 is a menu configuration diagram of a facsimile apparatus according to an embodiment of the present invention.

FIG. 8 is a menu configuration diagram of a facsimile apparatus according to an embodiment of the present invention.

FIG. 9 is an explanatory diagram showing an example of a conventional color facsimile apparatus.

[Explanation of symbols]

 50 processing unit 51 reading unit 52 storage unit 53 color misregistration correction processing unit 54 printer unit 55 RAM 56 interface 60 facsimile device 61 function keys 62 display unit 63 numeric keypad 80 personal computer 81 keyboard 82 mouse 90 public line

Claims (4)

[Claims] 1. A stored color image having a means for reading a color original document, a printing means for printing a color image, a storage means for storing color image data, and a calculation section for processing color data. A color facsimile apparatus comprising means capable of correcting color misregistration for each color of data. 2. The color facsimile apparatus according to claim 1, further comprising an interface capable of transmitting and receiving data to and from a personal computer, and having means for transferring data from the facsimile apparatus to the personal computer. 3. A color facsimile apparatus according to claim 2, further comprising means for displaying an original read by the facsimile apparatus on a display of a personal computer, and performing hue correction according to a control signal from the personal computer. 4. A color facsimile apparatus according to claim 2, further comprising means for displaying an original read by the facsimile apparatus on a display of a personal computer, and performing color misregistration correction on the personal computer.