JPS63288562A - Image processor - Google Patents

Abstract

PURPOSE:To develop character data and form data with color classification and to print them with color classification by dot-pattern-developing the character data and the form data to respective dot pattern memories respectively independently and simultaneously. CONSTITUTION:A main control part 1, when a color coding selecting signal 2 is outputted, discriminates the character data and the form data in sentence information A stored into a page memory 12. The main control part 1 converts a dot image corresponding to the form data, stores it into a first color bit map memory 15a, converts the dot image corresponding to the character data and stores it into a second color bit map memory 15a. These are read and the character data and ruled line data inputted by a single color can be printed with a different color. When the signal 2 is not outputted, the main control part 1 stores both data into the memory 15a or a memory 15b, reads then, and executes the processing of input data so as to print both data with the same color.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image processing apparatus such as a laser beam printer that outputs image data of two or more colors to an image output means.

[Conventional technology]

Conventionally, in this type of apparatus, image information, ie, character codes, print control data, etc. sent from an external device such as a host computer, is once edited for several pages in page units and stored in a page memory. Image information for one page stored in this page memory is sequentially read out and converted into dot data according to the character code. Next, according to the converted dot data, for example, in a laser beam printer, a laser beam is modulated into an on/off signal according to the dot data, thereby forming a latent image on a photosensitive drum (not shown) to form an image. There is.

FIG. 4 is a block diagram illustrating an example of this type of image processing apparatus. Reference numeral 11 denotes an input control unit that interfaces text information A consisting of character codes communicated from a host computer.

Reference numeral 12 denotes a page memory, in which text information A that was previously stored is sequentially erased according to the text information A input to the input control unit 11.

13 is the Lord! In section II#, the character code read out by the page memory 12 is converted into dot pattern information B1+B2 for each character with reference to the character pattern generation section 14.
Based on the input color designation information, it is stored in the first color bitmap memory 15a and the second color bitmap memory 15b.

16 is a first color scan buffer, which is composed of a first scan buffer 16a and a second scan buffer 16b;
reading out the dot pattern information B to the first scan buffer 16a and the second scan buffer 16b alternately based on a control signal input from the readout control unit 18a;
Writes are processed in parallel.

A second color scan buffer 17 is composed of a first scan buffer 17a and a second scan buffer 17b.
Reading out the dot pattern information B2 to the first scan buffer 17a and the second scan buffer 17b alternately based on the control signal input from the readout control unit 18b;
Writes are processed in parallel. The readout control section 18a outputs a control signal to the first color scan buffer 16 based on the readout signal sent from the main control section 11.

The readout control unit 18b controls the second color scan buffer 17 based on the readout signal D2 sent from the main control unit 11.
Outputs a control signal to.

19a is a parallel-to-serial converter, and the first scan buffer 1
6a, the parallel dot pattern data read out alternately from the second scan buffer 16b is transferred to the serial first scan buffer 16b.
The data is converted into color dot pattern data C1 and output as image information to, for example, a semiconductor laser drive circuit of a laser beam printer (not shown).

19b is a parallel-to-serial converter, and the first scan buffer 1
7a, the parallel dot pattern data read out alternately from the second scan buffer 17b is transferred to the serial second scan buffer 17b.
The data is converted into color dot pattern data C2 and output as image information to, for example, a semiconductor laser drive circuit of a laser beam printer (not shown).

The main control unit 13 colors the text information A input to the input control unit 11 based on the color designation information sent from the host computer, and stores dot images corresponding to form data such as ruled lines in the first color bitmap memory 15a. At the same time, a dot image corresponding to the character data is also stored in the second color bitmap memory 15b. Then,
Later stage scan buffer 16 or scan buffer 1
By controlling the writing or reading of the dot image via 7, the first color dot pattern data CI+second color dot pattern data C2 corresponding to each color is output to the laser driver of a laser beam printer, which serves as image output means, for example. However, the input data was processed so that text information and ruled lines could be printed in different colors so that they could be distinguished.

[Problem that the invention seeks to solve]

Therefore, the text information A that is input is for a single-color laser beam printer with no color specification.
, the main control unit 13 stores the dot image corresponding to the input text information A in either the first color bitmap memory 15a or the second color bitmap memory 15b. , single-color text information A input to a laser beam printer capable of two-color printing can only be reproduced in one of the selected colors, and ruled lines and text information can only be output in the same color.For example, print control When the printing pitch and line pitch are strongly restricted by the information, there is a problem that the ruled lines output as an image and the textual information overlap, making it very difficult to distinguish them.

This invention was made to solve the above problems, and when text information with a single color specification is input, by expanding the text information into a dot pattern memory for each color, the text information with a single color specification is An object of the present invention is to provide an image processing device capable of outputting document data and form data for each color and outputting dot pattern information.

[Means for solving problems]

The image processing device according to the present invention identifies character data and form data in input monochrome text information, and simultaneously and independently inputs the character data or form data into each dot pattern memory of a plurality of dot pattern memories. It is provided with a development control means for pattern development.

[Effect]

In this invention, the expansion control means simultaneously and independently develops the character data or form data into dot patterns in each dot pattern memory while identifying the character data and form data in the input monochrome text information.

(Embodiment) FIG. 1 is a block diagram illustrating the configuration of an image processing apparatus showing an embodiment of the present invention. Reference numeral 1 denotes a main control section which also serves as deployment control means of the present invention, and In addition to identifying the character data and form data in the text information A that is input and stored page by page in the page memory 12, the color input from the host is determined by the selection signal 2.
Based on the output state of the dot pattern information Bl, B2 t'11 corresponding to the character data and form data, the dot pattern information B1, B2 t'11 is developed independently and simultaneously in the color bitmap memory 15a or the second color bitmap memory 15b.

Note that when the selection signal 2 is not output for the color input from the host, the character data and form data in the text information A stored page by page in the page memory 12 are converted into dot pattern information B.

Or convert it to dot pattern B2, and convert it to the first color bitmap memory 15a or the second color bitmap memory 15b.
Expand to.

Next, the operation will be explained.

The main control section 1 uses the color selection signal 2 sent from the host computer to determine whether color separation processing is to be performed for the monochromatic text information A input to the input control section 11.

Here, if the main control unit 1 determines that the selection signal 2 is output (TRUE) for the colors sent from the host computer, the text information A stored in the page memory 12 is Control deployment.

First, the main control unit 1 identifies character data and form data such as ruled lines in text information A read from the page memory 12. Here, the main control section 1 converts a dot image corresponding to form data such as a ruled line while referring to the character pattern generation section 14, stores it in the first color bitmap memory 15a, and converts the dot image corresponding to the form data such as a ruled line. The dot image is converted while referring to the character pattern generation section 14, and is stored in the second color bitmap memory 15b.

Next, by controlling the writing or reading of dot images via the subsequent scan buffer 16 or scan buffer 17, the first color dot pattern data corresponding to each color is sent to a laser driver of a laser beam printer, which serves as image output means, for example. C1 and second color dot pattern data C2 are output, and the character data and ruled line data in the input text information A can be printed in a single color so as to be distinguishable in different colors.

On the other hand, the main control unit 1 selects the colors sent from the host computer in a state where the selection signal 2 is not output (FALSE).
If it is determined that the state is (state), the text information A stored in the page menu 12 is expanded and controlled as follows.

The main control unit 13 transfers dot images corresponding to form data such as ruled lines and dot images corresponding to character data in monochrome text information A sent from the host computer to a first color bitmap memory 15a or a second color bitmap memory 15a.
It is stored in the color bitmap memory 15b. Next, by controlling writing or reading of the dot image via the subsequent scan buffer 16 or scan buffer 17, the first color dot pattern data, which specifies a single color, is sent to a laser driver of a laser beam printer, which serves as an image output means, for example. Either C1 or second color dot pattern data C2 is output, and the input data is processed so that character information and ruled lines are printed in the same color.

In this way, the main control unit 1 selects color-based printing data processing for character data and form data in the monochromatic text information A according to the output state of the selection signal 2 for each color sent from the host computer. becomes possible.

In addition, in the above embodiment, the color-based development control for printing text information A specified in a single color in two colors was explained.
For example, a laser beam printer serves as an image output means.
In the case of a model that can reproduce more than one color, many color-based printing variations can be added to the color identification for input single-color text information A. In other words, by using one color for character data and printing in different colors depending on the type of form data, character data and form data can be distinguished and printed in a variety of ways. .

Next, the color separation development control operation of monochrome text information according to the present invention will be described with reference to FIGS. 2 and 3.

FIG. 2 is a flowchart illustrating an operation procedure for controlling color separation and development of monochrome text information according to the present invention. In addition, (1
) to (8) indicate each step.

First, the main control unit 1 waits for a print command to be input (1), and when the print command is input, it accepts the input of text information (2). Next, the color component is used to determine whether the selection signal 2 is on (3), and if YES, it is further determined whether the input text information is form data (4), and if YES, the dot pattern of the form data is determined. Expand to the first bitmap memory 15a5)
If the answer is No, the dot pattern of the character data is developed in the second bitmap memory 15b (6). Next, check 7 to determine whether all pages have been printed.
), if YES, end the dot pattern development process and N
If O, return to step (1).

On the other hand, if the judgment in step (3) is NO, the character data and form data of the input text information are expanded into either the first bitmap memory 15a or the second bitmap memory 15b8). , step (
Return to 7). Note that the color selection signal 2 is input to the main control unit 1 via software processing (data command) and dedicated hardware (designated cable).

As a result, when monochrome text information 3 is composed of form data 3a and character data 3b as shown in FIG. The output image 4 can be obtained by developing the data into the second bitmap memory 15b and printing the output form data 4a and the output character data 4b in different colors (shaded areas).

In the above embodiment, a case has been described in which development of the input text information is controlled based on the selection signal 2 for the color components sent from the host computer, but a switch for inputting the selection signal 2 for the color components is provided on the printer side. As a result, it is possible to process color output of text information specified in a single color on the printer side, and it is also possible to forcibly cancel the selection signal 2 for color components sent from the host computer.

Also, the color sent from the host computer is the selection signal 2, or the color specified from the printer is the selection signal 2.
is input, form data 3a is entered for each page.
and a first bitmap memory 15a or a second bitmap memory 15b that alternately stores character data 3b.
If you expand it into , you can output a highly designed document image.

(Effects of the Invention) As explained above, the present invention identifies character data and form data in input monochrome text information, and stores character data or form data in each dot pattern memory of a plurality of dot pattern memories. Since we have provided a development control means that independently and simultaneously develops dot patterns, it is possible to develop dot patterns for each color of character data and form data in monochrome text information without significantly changing the conventional configuration. It has an excellent advantage that the character data and form data in text information can be outputted to an image output means capable of printing in two colors, and the character data and form data in monochrome text information can be printed in various colors.

[Brief explanation of drawings]

FIG. 1 is a block diagram illustrating the configuration of an image processing apparatus showing an embodiment of the present invention, FIG. 2 is a flowchart illustrating the color separation control operation procedure for monochrome text information according to the present invention, and FIG. FIG. 4 is a schematic diagram illustrating an example of print output according to the invention, and FIG. 4 is a block diagram illustrating an example of this type of image processing apparatus. In the figure, 1 is a main control unit, 2 is a selection signal for each color, 11 is an input control unit, 12 is a page memory, 14 is a character pattern generation unit, 15a is a first color bitmap memory, and 15b is a second color bitmap memory.
A color bitmap memory, 16.17 is a scan buffer, 18a and 18b are readout control units, and 19a and 19b are parallel-to-serial converters. Figure 2

Claims (3)

[Claims] (1) In an image processing device that develops input text information with specified colors into a plurality of dot pattern memories and outputs dot information for each color to an image output means, character data in input monochrome text information and An image processing apparatus characterized in that an image processing apparatus is provided with a development control means for identifying form data and developing dot patterns of the character data or the form data independently and simultaneously in each dot pattern memory of the plurality of dot pattern memories. . (2) The development control means independently develops the character data and form data in the monochrome text information in each dot pattern memory based on the inputted color-specific selection command. The image processing device described in Section 1. (3) The development control means alternately develops the character data and form data in the monochrome text information in either one of the dot pattern memories based on the input color-specific selection command. The image processing device according to scope (1).