JPH05229233A - Printing equipment - Google Patents

Abstract

PURPOSE:To provide a printing equipment, which automatically corrects the blur and mackle of rule and in which even a straight line to be in a manually inputted image is converted into a clear straight line for printing and with which paginal printing is possible. CONSTITUTION:The printing equipment concerned has an interpreting part 1, an autograph part 2, a printing part 3, a data checking means 4, a data correcting means 5 and a data writing means 6. The interpreting part 1 interprets inputted printing data. The autograph part 2 expands the printing data into image and stores them in an image memory so as to print the image on paper at the printing part 3. When data correction instruction is specified, the data checking means 4 checks whether a rule blurs or mackles by reading the image data in the image memory or not. The data correcting means 5 corrects the blur and mackle of the rule. The data writing means 6 sends back the corrected rule to the image memory. When the paginal correction of rule in the image memory comes to an end, the printing part 3 prints the image data on paper.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing device, and more particularly to a printing device for printing in page units.

[0002]

2. Description of the Related Art A conventional printing apparatus, for example, in the case of a printer, creates page data by interpreting received print data into a printer command that the printer can understand. Based on this page data, the drawing unit develops in the image memory, which is a unit of 1 dot per 1 dot, and prints on the paper with the image of the developed image data. In this case, once the data was written in the image memory, the data could not be corrected. That is, in order to correct the data, it cannot be corrected by the printing apparatus, and therefore, it is necessary to perform the correction by the upper apparatus.

[0003]

In this conventional printing apparatus, when the print data is a ruled line, if the ruled line is slightly misaligned or shaken, it is troublesome because it is corrected by the computer.
Also, sometimes I printed without even realizing it. Also,
When the input device is a scanner, if the image data used is handwritten, the ruled lines are often not perfectly straight lines, and printing cannot be performed neatly. Then, in order to print nicely, you should correct the image data with a computer,
It was inconvenient because it had to be corrected with application software. An object of the present invention is to provide a printing apparatus that automatically corrects deviations and blurring of ruled lines and can automatically convert straight lines even when handwriting input without using a ruler for printing.

[0004]

A printing apparatus according to the present invention comprises a data checking means for detecting a deviation or a blur of a ruled line in print data, a data correcting means for rewriting the print data by correcting the detected deviation or a blur, Data write means for storing the modified print data in the image memory.

[0005]

When the print data correction command is specified, the print data in the image memory is read out, the blurring or deviation of the ruled line is corrected, and the corrected print data is returned to the image memory. The ruled lines are printed correctly as they are printed.

[0006]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram of a printing apparatus according to an embodiment of the present invention, and FIG. 2 is a flowchart relating to a ruled line correction operation in the printing apparatus of FIG.

This printing apparatus comprises an interpreting unit 1, a drawing unit 2, a printing unit 3, a data checking unit 4, a data correcting unit 5 and a data writing unit 6, and the input print data is an image scanner or handwriting. It is input by the keyboard and created by the computer or application software.

The interpreter 1 uses the sent print data to
The drawing unit 2 interprets the image so that it can be created.
The drawing unit 2 expands the print data interpreted by the interpretation unit 1 into an image image to be actually printed, and an image memory (not shown).
To store.

When the print data correction command is designated by the control panel or the command, the data check means 4 reads the image data in the image memory and stores it in the data correction memory (not shown), while the ruled line is drawn. Separately create ruled line data related to the position and type of. Then, the position of the ruled line is searched for in the data correction memory based on the above-mentioned ruled line data, and it is checked whether the line connecting both ends of the ruled line matches the correct ruled line connecting both ends of the ruled line. Check for any. The data correction unit 5 corrects the image data so that the erroneous portion found by the data check unit 4, that is, the above-mentioned shift or blur is matched with the ruled line when the both ends of the ruled line are connected by a straight line, and again for data correction. Store in memory. When one ruled line correction is completed, the data writing unit 6 returns the image data in the correction data memory to the image memory. When the correction of the ruled lines in the image memory for one page is completed, the printing unit 3 prints on the paper by transmitting the print command command, and proceeds to check the print data of the next page.

If the data correction command is not designated, the data check means 4 and the following means 4, 5 and 6 are skipped,
The direct printing unit 3 starts printing.

Next, the flowchart of FIG. 2 will be described.

When the print data correction command is designated, it is checked whether the print data is in the image memory (step 11). If there is print data, a ruled line is searched from the ruled line data described above (step 1
2). When the ruled line is found, the positions of both ends of the ruled line are known from the command used to draw the ruled line obtained from the ruled line data and the image image (steps 13, 1).
4). Next, the attribute of the ruled line such as whether the type of the ruled line is a solid line or a dotted line is checked (step 15). Steps 14 and 15
A correct ruled line is created from the information obtained in step 3 and stored in the data correction memory (step 16). Next, the ruled line in the print data and the correct ruled line created in step 16 are read out and compared (step 17). If there is an error as a result of the comparison, the address is known to rewrite it so that it matches the correct ruled line (steps 18 and 19).
When the ruled lines have been corrected once, the data correction memory is released (step 20). Then, the process returns to step 11, and the process for the next ruled line is performed until there is no print data for the page. If there is no error in step 18, the next ruled line is processed in the same manner. When the correction of the print data for one page is completed, printing is started (step 21). Then, the process returns to step 11 to check the print data of the next page (step 22).
When the correction of the print data of all pages is completed, the data correction work is ended.

[0014]

As described above, according to the present invention, when a data correction instruction is designated by a command, the ruled line is automatically corrected to a perfectly straight ruled line without misalignment or blurring. Even in such a case, there is no need to make corrections on the computer of the host device, and it is possible to prevent the user from printing without knowing that the ruled lines are blurred or misaligned.

[Brief description of drawings]

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

FIG. 2 is a flowchart regarding the operation of the printing apparatus in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Interpretation section 2 Drawing section 3 Printing section 4 Data check means 5 Data correction means 6 Data writing means

Claims (1)

[Claims] 1. In a printing apparatus for printing in page units, a data check means for detecting deviation or blurring of ruled lines in print data, and a data correction means for correcting the detected deviation or blurring to rewrite print data are corrected. And a data writing unit that stores the print data in the image memory.