JPH09263009A - Code printing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To print codes positively even in the case of existence of quality failures on the code printing intended face by printing even the media area information of recognizable characters or images and the like in itself except codes in printing multimedia information on printing media as information codes. SOLUTION: Multimedia codes, image recording information, and recording position information are inputted respectively, and the multimedia information is converted into information dot arrangement data, and thereafter, stored in RAM 8. Also, the paper recording information is converted into recording image data to then be stored in an image data memory 8a. Next, the division positional information of a page unit is calculated, and the information dot arrangement data is converted into a recording image data, following this, it is stored in a code recording image memory 8b, and a code recording position is stored in RAM 8. After that, by driving a printer engine, the content of each memory 8a, 8b is recorded in the paper face of one page.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to so-called multimedia information including audio information such as voice and music, video information obtained from a camera, a video, etc., and digital code data obtained from a personal computer, a word processor, etc. The present invention relates to a code printing device for printing such a dot code.

[0002]

2. Description of the Related Art Conventionally, a technology relating to a code printing apparatus for recording so-called multimedia information including audio information such as voice as an optically readable dot code has been disclosed (JP-A-6-231466). No.

FIG. 25 shows the structure of a dot code according to the above-mentioned conventional technique.

In the figure, in the dot code 101 data format, one block 104 includes a marker 102, a block address 105, address error detection / correction data 106, and a data area in which actual data is stored. It consists of The blocks 104 are arranged vertically, horizontally, and two-dimensionally, and are gathered to form the dot code 101. This is described in detail in Japanese Patent Laid-Open No. 6-231466, so further description will be omitted.

Next, FIG. 26 shows the structure of a conventional code printing apparatus for printing the dot code 101, which will be described. As shown in FIG. 26A, this code printing apparatus includes a printer engine 201, a paper surface recording information input unit 202, a CPU (Central Processing Unit) 203, and R.
OM (Read Only Memory) 204, RAM (Random Access)
Memory) 205 is connected via a CPU bus 212.

The paper surface recording information input unit 202 is for inputting characters, images and the like recorded on the paper surface. The CPU 203 is responsible for overall control, and ROM
In 204, programs, tables, data parameters, etc. are recorded. The RAM 205 is for recording a work area of the CPU 203 or recording image data. The printer engine 201 includes an ink 206 for recording on paper, a recording head 207, and a control unit 208. The control unit 208 controls the paper conveyance and the recording head 2.
It is responsible for controlling the 07 scan. Then, the recording head 207 is driven under the control of the control unit 208 to record the desired code.

The operation of actually recording a code on the paper by the code printing apparatus will be described below with reference to FIG.

As shown in FIG.
Reference numeral 07 has a configuration in which a plurality of recording units 207a for each recording pixel are arranged in one column. Then, the head scanning control unit 2
Reference numeral 10 scans the recording head 207 in a head scanning direction perpendicular to the arrangement direction of the recording units 207a. The code printing apparatus is provided with a paper transport control unit 209 that moves the paper in a direction perpendicular to the head scanning direction.

In such a construction, when the page recording information is recorded on one sheet of paper for one page, first, a plurality of divided images are arranged and one page is recorded. Here, the one-divided image is an image recorded in one head scan, and the length in the head scan direction, that is, the effective print length is the head scan length. The head scanning length and the vertical direction indicate the head scanning width, that is, the effective print width.

Next, with reference to FIG. 27, description will be given of a case where a code, a character, and paper surface information are recorded by the code printing device. FIG. 27A is a diagram showing a state in which solid black recording is performed by the code printing device according to the related art.
27B is a diagram showing characters recorded by the code printing device, and FIG. 27C is a diagram showing dot codes recorded by the code printing device.

In the conventional code printing apparatus, the dot diameter to be printed is set to be larger than the dot pitch that can be printed to achieve the purpose of reliably printing solid black. Therefore, as shown in FIG. 27 (b), the lines of characters can be recorded clearly without interruption. However, as shown in FIG. 27C, one recording dot is
In the case of information dots, the white dots were narrowed due to the influence of black dots, and it was not possible to record them as a code that could be read reliably.

Therefore, it is conceivable to reduce the dot diameter for recording. FIGS. 27D to 27F show the case of recording with a small dot diameter. FIG. 27 (d) shows the case of recording with a dot diameter for optimally performing code recording, but black dots and white dots are recorded in an optimum shape having a necessary dot area without interfering with each other. I understand.

[0013]

However, when printing a black solid with this dot diameter, as shown in FIG. 27 (e), the black solid cannot be printed reliably and there is a gap between the dots. Will be created. Further, when a character is printed with the dot diameter, the line is cut off as shown in FIG.

As described above, it is not possible to reliably record on-paper recording information such as characters and images and dot codes with the same dot diameter by the code printing device. In addition, the code could not be reliably recorded even if there were spots, yellow stains, or torn parts on the paper surface.

The present invention has been made in view of the above problems, and an object thereof is to be able to optimally set a dot pitch, a dot shape, a dot size, and the like, and further, to cause poor quality on a code printing surface. Even when there is such a problem, the printability of the print medium is improved and the code is surely printed with an appropriate print quality.

[0016]

In order to achieve the above object, a code printing apparatus according to a first aspect of the present invention optically outputs multimedia information including at least one of audio information, image information and digital code data. In a code printing apparatus for printing on a print medium as a physically readable code, a medium surface for printing on the print medium other than the code, medium surface information including characters and images that can be recognized by itself. An information printing unit and a code printing unit for printing a code corresponding to the multimedia information on the print medium are provided.

A code printing device according to a second aspect is a code printing device for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code. In order to determine the quality state of the print surface read by the reading means, the reading means for optically reading at least the code on the print medium or the state of the print surface on which the code is printed. And a quality state determining means of the above.

Further, the code printing apparatus according to the third aspect is a code for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code. In the printing apparatus, a printing unit that optically prints a code corresponding to the multimedia information on the printing medium, and a reading unit that optically reads the state of at least the printing surface of the printing medium on which the code is printed. And a print state determination for determining whether the code print state is good or bad by comparing a data sequence obtained by restoring the code read by the reading means with a data sequence of the code to be printed on the print medium. Means, and print control means for controlling the reprinting operation of the code according to the result determined by the print state determining means. Characterized by comprising.

That is, in the code printing apparatus according to the first aspect of the present invention, multimedia information including at least one of audio information, image information and digital code data is printed on a print medium as an optically readable code. In the code printing device for, by the medium surface information printing means, the medium surface information including characters or images recognizable by itself other than the code is printed on the print medium,
A code corresponding to the multimedia information is printed on the print medium by the code printing means.

In the code printing apparatus according to the second aspect, a code for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code. In the printing apparatus, at least the code is printed by the reading unit or the state of the printing surface on which the code is printed is optically read by the reading unit, and the quality of the printing surface read by the reading unit is determined by the quality state determining unit. The quality status is determined.

Further, in the code printing apparatus according to the third aspect, a code for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code. In the printing device, a code corresponding to the multimedia information is printed on the print medium in an optically readable manner by the printing unit, and at least the state of the print surface on which the code is printed on the print medium is optically read by the reading unit. The data sequence obtained by restoring the code read by the reading unit by the print state determining unit and the data sequence of the code to be printed on the print medium are compared to determine whether the code printing state is good or bad. The code is determined according to the result determined by the print state determination means by the print control means. Re-printing operation is controlled.

[0022]

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

FIG. 1 shows the arrangement of a code printing apparatus according to the first embodiment, which will be described.

As shown in the figure, a multimedia information input unit 4 is connected to the CPU bus 14, and multimedia information such as sounds, images, characters, etc. is input from the multimedia information input unit 4. . Furthermore, the above C
A paper surface recording information input unit 5 is connected to the PU bus 14, and image recording information and code recording position information to be recorded on the paper surface are input from the paper surface recording information input unit 5.

In addition to the above, the CPU bus 14 has a CP
The U6, the ROM 7, the RAM 8, the mode setting unit 2, the display unit 3, and the printer engine 1 are connected. The above CPU
Reference numeral 6 is for controlling the overall control, and is the ROM 7 described above.
The programs, tables, data parameters, etc. used for the calculation in the CPU 6 are recorded in advance in the. R above
AM 8 is a work area of the CPU 6, and includes a recording image data memory 8a and a code recording image data memory 8
b. The display section 3 is for displaying an error and the like, and the mode setting section 2 is for performing various settings.

A head support member 10 is provided in the printer engine 1, and two types of print heads, a code print head 11 and a paper print information print head 12, are arranged on the head support member 10. Has been set up,
Further, ink 9 for supplying the recording heads 11 and 12 is provided. The head support member 10
It has a control unit 13 that performs head scanning control for controlling the sheet feeding and paper conveyance control for controlling the sheet feeding.

The code recording head 11 is a recording head whose dot pitch, dot diameter, and dot shape are different from those of the ordinary paper surface recording information recording head 12. However, it is assumed that the code recording image data by the code recording head 11 does not include a marker which is a part of a code including solid black. Here, the marker is a part of the recording information on the paper.

Hereinafter, with reference to the flowchart of FIG.
The operation of the CPU 6 of the code printing apparatus according to the first embodiment will be described. When a power switch (not shown) is turned on and the code printing apparatus starts driving (step S1), CP
U6 first performs initial setting of various parameters, head position control, etc. (step S2). Then, when multimedia information such as voice or image is input in page units from the multimedia information input unit 4, the CPU 6 performs input processing by a filter, compression processing, information dot array conversion, and then information dot array data. The data is saved in a predetermined area of the RAM 8 (step S3).

Subsequently, when the page recording information such as characters, illustrations and images is input from the page recording information input section 5 in page units, the CPU 6 converts it into recording image data.
It is stored in the recording image data memory 8a on M8 (step S4). Next, the CPU 6 calculates division position information in order to divide the print image data in page units into a plurality of divided images. In this embodiment, the next divided image position is calculated by the sum of the current divided image position and the divided image pixel width (step S5).

Then, the CPU 6 converts the information dot array data into recording image data, stores it in the code recording image memory 8b of the RAM 8, and stores the code recording position in the RAM 8 (step S6). Then, CPU
6 executes a subroutine (FIG. 3) which will be described later, drives the printer engine 1, and outputs the print image data memory 8
The contents of a and the code recording image data memory 8b are recorded on the page for one page (step S7).

In this way, the CPU 6 determines whether to continue printing or to end printing (step S8), and if printing is to end, end this sequence (step S8).
9) If the printing is continued, the above step S
Returning to step 3, recording of the next page is performed in the same sequence as above.

Next, the operation of the subroutine executed in step S7 of FIG. 2 will be described in detail with reference to the flowchart of FIG.

In this subroutine, the contents of the recording image data memory 8a and the code recording image data memory 8b are recorded on the paper for one page.

Now, when entering this sequence, the CPU 6
Performs position control of the paper and the recording heads 11 and 12 via the control unit 13, moves the recording heads 11 and 12 to the recording start end, and selects the first divided image at the recording start position (step S11). .

Subsequently, the CPU 6 executes a subroutine (FIG. 4) described later, and prints the print image data and the code print image data of the selected divided image on the print head 11,
12, and the divided image is recorded on the paper. This recording also includes recording of code recording image data (step S12).

Subsequently, the CPU 6 selects the next divided image (step S13) and moves the paper in the paper moving direction by the head scanning width (step S14). Then, it is judged whether or not the printing in page units is completed, and if it is completed, the whole sequence is completed (step S16). If it is not completed, the above-mentioned is executed in order to record the next divided image. It returns to step S12. Then, similarly, recording is performed until one page is recorded, and when one page is recorded, the subroutine is finished (step S16).

Next, referring to the flowchart of FIG. 4, FIG.
The operation of the subroutine executed in step S12 above will be described.

When this routine is entered, the CPU 6 first determines the presence of a code in the divided image based on the code position information (step S21). If there is no code, the process proceeds to step SS22, the recording image data of the selected divided image is transferred from the recording image data memory 8a to the recording head 12 for the sheet recording information, and the divided image is recorded on the sheet. (Step S22), this subroutine is terminated and the process returns to the main routine (step S2).
6).

On the other hand, when the code is present in the divided image in step S21, the CPU 6 transfers the recording image data of the selected divided image from the recording image data memory 8a to the recording head 12 for recording information on paper. (Step S23), the code recording image data of the existing code is transferred to the code recording head 11 (step S24). Here, the data is transferred to the code recording head 11, the head supporting member 10 is scanned, and the code in the divided image and the paper surface recording information are recorded on the paper surface. That is, the code is recorded by the code recording head 11 described above, and the paper surface recording information is simultaneously recorded on the paper surface by the paper surface recording information head 12 (step S25). In this way, this subroutine is completed (step S26).

As described above, in the first embodiment, the code recording head 11 and the paper surface recording information recording head 12 are used at the same time to record the code and the paper surface recording information at the same time. .

Next, a second embodiment of the present invention will be described.

FIG. 5 shows the configuration of the code printing apparatus according to the second embodiment, which will be described.

In the above-described first embodiment, the code recording head 11 in which the pitch, shape, and size of the dots are different from the recording information recording head 12 for the paper surface is provided.
Optimal recording was performed with the recording head 11.

On the other hand, in the second embodiment, paying attention to the dot diameter, the dot diameter when recording for the paper surface recording information and the dot diameter when performing the code recording are variably controlled. Thus, one recording head is capable of performing both recordings.

FIG. 5A shows the ink jet system, and shows an example in which the ink ejected from the jet nozzle 17 of the ink jet is controlled by the dot diameter control section 15 to make one recording dot large. On the other hand, FIG. 5B shows an example in which the dot diameter control section 15 is controlled to be narrowed to record one recording dot small.

FIG. 5C shows the configuration of the code printing apparatus according to the second embodiment, which will be described. Here, only the characteristic configuration of the printer engine 1 is shown, and the other constituent elements similar to those of FIG. 1 are omitted.

In the figure, a recording head 16 and a dot diameter control section 15 are arranged on the head supporting member 10. The dot diameter control unit 15 is for controlling two dot diameters for the code and the recording information on the paper. Further, the ink 9 supplied to the recording head 16 is provided. In addition to the above, a control unit 13 that performs head scanning control for controlling the head supporting member 10 and paper conveyance control for controlling paper is included. Although the example of the inkjet is used here, the inkjet is not necessarily limited to the inkjet, and the thermal transfer method may be used. In addition, the head may control the dot diameter in various printer methods such as a laser printer.

Further, in the case of ink jet, FIG.
Although the amount of diffusion is controlled by the method shown in (a) and (b), it is also possible to change the amount of ink. Further, in the thermal transfer method, when controlling the dot diameter, the dot diameter is controlled from the thermal control for dot recording considering the adhesiveness of the recording medium and the peeling characteristic of the ink ribbon due to heat, and the head scanning speed of the head. It is possible to control.

The operation of the code printing apparatus according to the second embodiment will be described below.

Although the sequences of FIGS. 2 and 3 are adopted in this embodiment as in the case of the first embodiment, the operation of the subroutine executed in step S12 of FIG. This will be described with reference to the flowchart of FIG.

First, the CPU 6 controls the ejection noise 17 by the dot diameter control unit 15 to set the dot diameter to a predetermined value for the paper surface recording information (step S31).

Then, the CPU 6 outputs the recording image of the selected divided image to the recording image data memory 8 of the RAM 8.
The divided image is transferred to the recording head 16 from a, and the divided image is recorded on the paper (step S32). Then, the presence of the code in the divided image is determined from the code position information (step S
33). If there is no code in the divided image, this subroutine is finished (step S37).

On the other hand, if it is determined in step S33 that the code is present in the divided image, step S34
Proceed to the subsequent processing. Then, the ejection nozzle 17 is controlled by the dot diameter control unit 15 to set the dot diameter to a predetermined code value. As a result, the dot diameter is normally reduced (step S34).

Then, the code recording image data of the existing code is transferred to the recording head 16 (step S3).
5) The code is recorded on the paper (step S36), and this subroutine is finished (step S37).

As described above, in the second embodiment, the dot diameter is controlled to separately record the code for the paper surface recording information such as characters and images and the paper surface recording information and the code. Is taking.

Next, a third embodiment of the present invention will be described.

FIG. 7 shows the arrangement of a code printing apparatus according to the third embodiment, which will be described.

It should be noted that only the structure relating to the features of the present embodiment is shown here, and the other structures similar to those in FIG. 1 are not shown or described.

As shown in the figure, this code printing apparatus is different from the configuration shown in FIG. 3 in that the image pickup device 18 and the image pickup device 1 are provided on the head support member 10 in the printer engine 1.
Image memory 19 for storing the image output from 8
And is further provided. With such a configuration, a process of detecting the paper surface state of the recording surface for recording the code and a process of inspecting the recording quality of the code recorded on the paper surface are realized as will be described later. This will be described later.

Hereinafter, with reference to the flowchart of FIG.
The operation of transferring the recording image data and the code recording image data of the selected divided image to the recording head 16 and recording the divided image on the paper according to the third embodiment will be described. This operation is performed in step S12 of FIG. 3, but since the sequence of FIG. 3 is as described above, the description thereof is omitted here.

First, the ejection nozzle 17 is connected to the dot diameter control unit 1
5, the dot diameter is set to a predetermined value for the paper surface recording information (step S41). Then, the recording image data of the selected divided image is transferred from the recording image data memory 8a to the recording head 16, and the divided image is recorded on the paper (step S42). Then, the presence of a code in the divided image is determined from the code position information (step S43). If there is no code here, this subroutine is terminated (step S53).

On the other hand, if the code exists, step S
Go to 44. Then, the ejection nozzle 17 is controlled by the dot diameter control unit 15 to set the dot diameter to a predetermined code value. Here, a small dot diameter for the code is set (step S44). Then, the head support member 1
0 is scanned, the state of the paper surface is read from the image sensor 18, and the state is read into the image memory 19 (step S45). Here, before recording, the recording head 16 is first scanned to read the state.

Then, the taken-in image is read from the image memory 19 to detect a paper surface condition abnormality such as dust or stain, which is lower than the light reflectance in a good paper surface condition (step S46). Here, the light reflectance is measured, and a portion having a lower reflectance than normal paper is detected as a paper surface state abnormality.

Subsequently, it is judged whether or not there is an abnormality on the paper surface (step S47), and if there is no abnormality, the code recording image data of the existing code is recorded on the recording head 16.
(Step S48), and the code is recorded on the paper (step S49). On the other hand, if there is an abnormality, that is, if there is dust, stains, yellow stains, or the like, the process proceeds to step S50, and it is determined whether the area of the abnormal portion is larger than a predetermined value (step S50). If the dust is abnormally large, the code cannot be recorded, but if the dust is very small, the code can be avoided and the size is determined.

If it is determined in step S50 that the area of the abnormal portion is larger than the predetermined value, warning processing is performed (step S52), and this subroutine is finished (step S53). On the other hand, when the area of the abnormal portion is smaller than the predetermined value, the code recording image data of the existing code is divided so that each is completed as information,
The data is converted into code recording image data that avoids the above-mentioned abnormality and transferred to the recording head 16 (step S51). Then, the divided code is recorded on the paper (step S
49), and this subroutine is finished (step S5).
3).

Here, referring to FIG. 9, the above step S5
The process 1 will be described in detail.

As shown in FIG. 9 (a), a normal code is formed by stacking block codes. Therefore,
When stains or dust 20 are present on the paper surface, it is not possible to reliably record the code as shown in FIG. 9A so that it can be read. Therefore, in such a case, in FIG.
As shown in (b), the code is divided and recorded. In step S51,
The image image is created and recorded by the recording head 16.

Further, for example, as shown in FIG. 9C, when the paper surface abnormality such as dust or stain 21 is extremely large, it is determined in step S51 that the area of the abnormal portion is larger than a predetermined value. If so, the index 23 × is printed at the code recording position. This index is not limited to x, and any index that is easy to understand can be used. This process is performed in the warning process of step S52 in the above sequence.

Another operation relating to the code quality inspection according to the third embodiment will be described below with reference to the flowchart of FIG. This operation is performed in step S12 of FIG. 3 described above.

First, the CPU 6 controls the ejection nozzle 17 by the dot diameter control unit 15 to set the dot diameter to a predetermined value for recording information on paper (step S61), and to record the recording image data of the selected divided image. The divided image is transferred from the data memory 8a to the recording head 16 and the divided image is recorded on the paper (step S62).

Subsequently, the presence of a code in the divided image is judged from the code position information (step S63). If it is judged that the code does not exist, this subroutine is finished (step S68). On the other hand, if it is determined in step S63 that the code exists in the divided image, the process proceeds to step S64.

Then, the ejection nozzle 17 is controlled by the dot diameter control unit 15 to set the dot diameter to a predetermined code value (step S64), and the code recording image data of the existing code is transferred to the recording head 16. The code is recorded on the paper (step S65), the read image data read by the image sensor 18 in the scan for recording the code on the paper is read from the image memory 19, and the read image data, the image pickup magnification, the recording dot pitch, and the image pickup pixel pitch are read. Calculate the correlation value with the coded image data considering (correlation value = 1 / (difference between two images))
(Step S66). Here, the difference between the two images is used, but the difference may not necessarily be the difference, and the written image and the read image are compared to obtain the correlation value.

Subsequently, the CPU 6 determines whether the calculated correlation value is higher than the first predetermined value (step S6).
7) If it is determined that the correlation value is high, it means that the recorded image and the read image are close to each other, and it is determined that the code quality is not bad and there are few errors, and this subroutine is terminated. (Step S68).

On the other hand, if it is determined in step S67 that the correlation is low, the code recording image data is transferred to the recording head 16, the code is recorded again on the paper, and the same code is overwritten on the paper (step). S69). Then, in the scan for recording the code on the paper, the image sensor 18
The read image data read by the image memory 19
Then, the correlation between the read image data and the code recording image data in consideration of the imaging magnification, recording dot pitch, and imaging pixel pitch is calculated (for example, correlation value = 1 / (difference between two images)) (step S7
0).

Then, it is judged whether or not the calculated correlation value is higher than the second predetermined value (step S7).
1). A value having a higher correlation value than the first predetermined value is set as the second predetermined value. Then, when it is determined that the improvement is not made as compared with step S67 (step S72), a warning process is performed because the correlation is low (step S72), and the present subroutine is ended (step S68).

On the other hand, if it is judged in the above step S71 that the code can be reproduced sufficiently and can be surely decoded, it is judged that the correlation is high, and this subroutine is finished (step S68).

Next, referring to the flowchart of FIG.
The operation of the warning process subroutine executed in steps S52 and S72 will be described. The presence of the abnormality on the paper surface is displayed on the display unit (step S81), and an index indicating that the abnormality on the paper surface is present at the code recording position is printed (step S82). Here, the index such as x shown in FIG. 9C is recorded on the paper. In this way, the process exits this sequence and returns to the main sequence (step S8).
3).

Next explained is the fourth embodiment of the invention.

FIG. 12 shows the arrangement of a code printing apparatus according to the fourth embodiment, which will be described.

It should be noted that here, only the constituent parts that characterize the present embodiment are shown, and the illustration and description of the other structures similar to those of FIG. 1 are omitted.

As shown in the figure, this embodiment is different from the configuration of FIG.
To the image memory and restoration processing section 24, and an information dot array data memory 8c is further provided on the RAM 8.
This is an information processing of the restoration process and the dot array of the code in order to inspect the quality of the code.

Here, the information dot array data will be described with reference to FIG.

As shown in FIG. 13A, the information dot array data indicates an array of binary data of "0" or "1", where "1" is black and "0" is white. The code recording image data converted into the code image is shown in Fig. 1.
3 (b). Here, 1 of the recording dot for code
The dot is one information dot.

Then, in FIG. 13C, the code recording image data is imaged by the image pickup device 18 and is stored in the image memory 24 as code read image data. Here, the state actually recorded on the paper is read. Then, by performing the restoration process on the code read image data, it is possible to convert the read information dot array data after the restoration process as shown in FIG.

An exclusive OR of the information dot array data shown in FIG. 13A and the read information dot array data after the reading and restoring processing shown in FIG. 13D is obtained as shown in FIG. 13E. Shown in. here,
The 1 indicates the position of the error, and the position information is 1
The number of errors is calculated by counting the number of.

The operation relating to the code quality inspection function of the fourth embodiment, erroneous dot detection, and erroneous dot overwriting processing will be described below with reference to the flowchart of FIG. This is the subroutine executed in step S12 of FIG. 3, but since it is as described above with reference to FIG. 3, the description thereof is omitted here.

First, the ejection nozzle 17 is connected to the dot diameter control unit 1
5, the dot diameter is set to a predetermined value for paper surface recording information (step S91), the recording image data of the selected divided image is transferred from the recording image data memory 8a to the recording head 16, and the divided image is displayed. It is recorded on the paper (step S92). Then, the presence of the code in the divided image is determined from the code position information (step S93),
If the code does not exist, this subroutine is finished (step S99).

On the other hand, when it is determined that the code exists (step S93), the CPU 6 controls the ejection nozzle 17 by the dot diameter control unit 15 to set the dot diameter to a predetermined code value (step S94). The code recording image data 8b of the existing code is transferred to the recording head 16 and the code is recorded on the paper (step S95). Then, in the scan for recording the code on the paper surface, the image pickup device 1
The read information dot array data is detected by performing restoration processing of the image data read in step 8 (step S96), the read information dot array data and the information dot array data are compared, and an incorrect dot is detected (step S97). Then, it is determined whether the erroneous dot number is larger than a predetermined value (step S98). If the number of erroneous dots is less than the predetermined value, this means that there are few errors, and it can be judged that this code can be reliably reproduced by error correction or the like, so this subroutine is terminated (step S99).

On the other hand, if it is determined in step S98 that the erroneous dot number is greater than the predetermined value, it is highly possible that this cannot be recovered by error correction or the like.
The process proceeds to step S100, and the dot array data of only the erroneous dots is converted into print image data (step S
100). Then, the code recording image data is transferred to the recording head 16 and recorded on the paper (step S
101). This will re-record only the erroneous dots.

Then, in the scan for recording the code on the paper, the data read by the image pickup device 18 is restored, and the read dot array data is detected again (step S102). This is the same processing as step S96. Then, similarly to step S97, the read information dot array is compared with the information dot array data to detect erroneous data again (step S103).

Then, the CPU 6 again compares the erroneous dot number with the predetermined value (step S104), and if it is less than the predetermined value, determines that the reproduction is possible and terminates (step S99). When it is determined that the number is larger than the above, after the warning process (step S105), the present subroutine is finished (step S99).

As described above, in the process of the fourth embodiment, the inspection is performed twice, and if the number of erroneous dots is larger than the predetermined value, a warning is issued and the process is terminated. It is also possible to make the determination a plurality of times or change the predetermined value in step S98 and the predetermined value in step S104 to make the determination.

Next explained is the fifth embodiment of the invention.

FIG. 15 is a view showing the arrangement of the code printing apparatus according to the fifth embodiment.

It should be noted that, here, only the constituent parts that characterize the present embodiment are shown, and the illustration and description of the other structures similar to those in FIG. 1 are omitted.

As shown in the figure, in addition to the normal ink 9, the pre-coating coating ink 26 is added to the configuration of FIG.
And an ink selection control unit 27 are newly provided to select the precoating coating ink 26 and the normal ink 9. Although the ink selection control unit 27 is configured to select the normal ink 9 and the precoating coating ink 26 here, the precoating recording head is prepared on the head supporting member 10, and the ink selection control unit 27 is provided. Alternatively, the precoating coating ink 26 may be supplied to the precoating recording head.

The characteristic operation of the fifth embodiment will be described below with reference to the flowchart of FIG. This is the subroutine executed in step S12 of FIG. 3, but since it is as described above with reference to FIG. 3, the description thereof is omitted here.

When this sequence is entered, the CPU 6 determines the presence of a code in the divided image from the code position information (step S121). If the code does not exist, the recording image data of the selected divided image is recorded image data. The divided image is transferred from the memory 8a to the recording head 29 for recording information on the paper, and the divided image is recorded on the paper (step S12).
2) The operation ends (step S123).

When it is determined in step S121 that the code exists, the ink selection control unit 27 selects the precoating coating ink 26, and the precoating is performed by the recording head 29 for the paper surface information at the code position based on the code position information. Solid printing of precoat ink is performed (step S1)
24). Here, as described above, when the ink for precoat and the head for precoat are provided, it is not necessary to control the selection of the ink here, and the recording head for precoat is used for coating.

Subsequently, the image data of the selected divided image is transferred from the recording image data memory 8a to the recording head 29 for the paper surface recording information (step S125), and the code recording image data of the existing code is transferred to the recording head 28 for the code. (Step S126). The head supporting member 10 is scanned, and the code recording head 28 and the paper surface information recording head 29 simultaneously record on the paper surface (step S127), and all operations are completed (step S).
128).

As described above, according to the operation of the fifth embodiment, coating and pre-coating ink are solidly recorded in advance on the area where the code is recorded to eliminate dust, stains and yellow stains on the surface of the code. In addition, the recording is performed after the smoothness and the printability are improved, the influence of dust on the paper surface can be eliminated, and the code can be surely recorded.

Next, a sixth embodiment of the present invention will be described.

FIG. 17 shows the arrangement of a code printing apparatus according to the sixth embodiment, which will be described.

Note that, here, only the constituent parts that characterize the present embodiment are shown, and the illustration and description of other structures similar to those in FIG. 1 are omitted.

As shown in the figure, this code printing apparatus is characterized in that precoating is performed by a thermal transfer method rather than an ink jet method. In the case of the thermal transfer method, ribbon selection control is performed instead of ink selection control. For that purpose, a ribbon selection unit 27 and a recording head 26 for both recording information on paper and a code are provided.

Here, precoating was adopted as a method of reliably recording the code even if there are dust, stains, yellow stains, etc. on the paper surface, but as a method of increasing the smoothness, the code recording portion is pressed by a roller. A paper pressing means for increasing the smoothness and a recording surface maintenance means such as pasting a film on the code recording surface are conceivable.

The characteristic operation of this embodiment will be described below with reference to FIG.

First, FIG. 18A shows the relationship between the positions of the recording head 26 and the image sensor 18, the width of the recording head 26 and the image sensor in the structure in which the recording head 26 and the image sensor 18 are provided on the support member 10. It is a figure which shows the relationship of the width of 18.

The image pickup device 18 is used for both the purpose of detecting the paper surface state and the code reading, and the recording head 26 is used for both the code recording and the paper surface recording information. The recording head 26 is arranged in the scanning direction with respect to the image sensor 18, and is driven with the head scanning direction as the head recording direction. The code can be recorded and read with one scan. Therefore, the quality of the code can be confirmed, and the dot of the error and the quality of the code can be confirmed. When the width L1 of the image pickup is larger than the width L2 of the head of the recording head 26 with respect to the distance L2, the quality of the recorded code can be reliably read.

On the other hand, in FIG. 18B, by arranging the recording head 26 in the recording direction with respect to the image sensor 29 with respect to the head scanning direction, the code is detected while detecting the paper surface state during one scanning. When a paper surface condition abnormality such as dust is detected, it is possible to record while avoiding the paper surface condition abnormal portion.
This can be done during one scan, and the code can be surely recorded.

Next, a seventh embodiment of the present invention will be described.

FIG. 19 shows the arrangement of a code printing apparatus according to the seventh embodiment, which will be described.

As shown in the figure, in the printer engine 1, the image pickup device 1 is mounted on the head support member 10.
8, 1 dot diameter control unit 3 for each recording unit for each recording pixel
0, the recording head 16 is provided. The dot diameter control unit 30 is capable of selecting a small dot diameter optimal for recording a dot code and a large dot diameter optimal for recording paper surface recording information. Further, a black ink other color ink 32 and a white ink 31 are provided, and either of them is selected by the ink selection control unit 27 and supplied to the recording head 16. Also,
A large dot diameter recording image data memory 8e and a small dot diameter recording image data memory 8d are separately provided on the RAM 8. The other configuration is similar to that of FIG. 1, and therefore the description is omitted here.

Here, FIG. 20 shows a case where the marker in FIG. 25 is recorded with a small dot diameter and a case where it is recorded with a large dot diameter. That is, FIG. 20A is a diagram showing a case where a dot code marker is recorded with a small dot diameter, and FIG. 20B is a diagram showing a case where a dot code marker is recorded with a large dot diameter. In the example shown in FIG. 20 (a), it is understood that it is difficult to reliably reproduce a marker because a white portion appears in the marker without solid black. On the other hand, FIG.
In the example shown in (1), it can be seen that the inside of the marker is surely solid and the marker can be surely reproduced.

The operation of the CPU of the seventh embodiment will be described below with reference to the flowchart of FIG. This is an operation including selection of a large dot diameter and a small dot diameter and correction of an erroneous dot.

When the power is turned on (step S13
1), the CPU 6 first initializes (step S132), and then inputs the multimedia information in page units by the multimedia information input unit 4 to perform an input process,
The compression processing and the information dot array conversion are performed, and the information dot array data (including marker information) is stored in the RAM 8f (step S133).

Then, the page recording information such as characters, illustrations, images, etc. is input page by page from the page recording information input unit 5, converted into recording image data for large dot diameter, and stored in the RAM.
The image data is stored in the recorded image data memory 8e (step S134).

Then, a division position for dividing the recording image data in page units into a plurality of division images is calculated (next division image position = division image position + division image pixel width).
(Step S135).

Next, the dot portion of the information dot array data (including marker information) excluding the marker is converted into the recording image data for the small dot diameter, which is stored in the recording image data memory 8d for the small dot diameter at a predetermined position, and the marker is stored. After the portion is converted into the large dot diameter recording image data, it is stored in the large dot diameter recording image memory 8e at a predetermined position. Also,
The code recording position is stored in the memory (RAM 8) (step S136).

In this way, the contents of the large dot diameter recording image memory 8e and the small dot diameter recording image memory 8d are recorded on the paper surface for one page (step S137), and it is determined whether or not to end the printing (step S138). ).
When printing the next page, the above step S13 is performed.
Returning to step 3, the same sequence as above is repeated, and when printing is finished, all operations are finished (step S1).
39).

Next, referring to the flowchart of FIG. 22,
The sequence of the subroutine executed in step S137 of FIG. 21 will be described. Here, the dot portion of the information dot array data (including marker information) excluding the marker is converted into the recording image data for the small dot diameter, which is stored in the recording image memory for the small dot diameter at a predetermined position, and the marker portion is recorded with the large dot. After being converted to diameter recording image data, it is stored in a large dot diameter recording image memory at a predetermined position. Also, the code recording position is saved in the memory.

That is, when entering this sequence, first the position control of the paper and the recording head 16 is performed, and the first divided image at the recording start position which moves to the recording start end is selected (step S
141), small dot diameter recording image data 8e and large dot diameter recording image data 8d of the selected divided image
Is transferred to the recording head 16 and the divided image is recorded on the paper (step S142). Subsequently, the next divided image is selected (step S143), the paper is moved by the head scanning width (step S144), and it is determined whether or not printing in page units is finished (step S145), and the next divided image is recorded. In this case, the process returns to step S142 and the same sequence as above is repeated. When printing is finished, all the operations are finished (step S146).

Next, referring to the flowchart of FIG. 23,
The operation of the subroutine executed in step S142 of FIG. 22 will be described. The recording information on the paper and the marker portion of the code are converted into large dot diameter recording image data, and the dot portion of the code is converted into small dot diameter image data (step S150). Subsequently, the large dot diameter recording image data and the small dot diameter recording image data of the selected divided image are transferred to the recording head 16, and the dot diameter is controlled by the dot diameter control unit 30 for each recording unit of one recording pixel. The control is performed for each of the large dot diameter and the small dot diameter for each recording dot, and all the information of the divided image is recorded on the paper surface by one scanning (step S151).

This is because the characters such as the paper surface information and the markers, the information with a lot of solid black, and the dot diameter are converted into the recording image, so that the recording is performed by the head control for the large dot diameter and the same one time recording is performed. During scanning, the dot portion of the dot code is simultaneously recorded by the dot diameter control for the small dot diameter.

Subsequently, the read image data read by the image sensor 18 in scanning is restored to detect read information dot array data, and the read dot array data is compared with the information dot array data to be recorded. False dots are detected (step S15)
2). Then, it is judged whether or not the erroneous dot number is larger than a predetermined value (step S153), the subroutine is ended if it is smaller (step S154), and if it is larger, the process proceeds to step S155.

Then, information dot arrangement data of only black dots among erroneous dots are detected, converted into recording image data, transferred to the recording head 16, and recorded on the paper (recording only erroneous black dots). (Step S155).
Further, the ink selection control unit 27 is controlled to select the white ink (step S156), the information dot arrangement data of only the white dots among the erroneous dots is detected, and converted into the recording image data for the small dot diameter. Transfer to recording head and record on paper. At that time, the dot diameter control is all performed with a small dot diameter (only incorrect white dots are recorded) (step S15).
7). In this way, all the operations are completed (step S15).
4).

Next, another operation according to the seventh embodiment will be described with reference to FIG. This operation is executed in step S12 of FIG. 3, but since it has already been described with reference to FIG. 3, its description is omitted here.

In this sequence, the recording image data and the code recording image data of the selected divided image are transferred to the recording head 16 and the divided image is recorded on the paper. That is, when the paper surface state detection mode is set (step S161), the paper surface state is detected (step S166) and the divided image is recorded on the paper surface (step S167).

If the non-detection mode is set (step S161), the divided image is recorded on the paper (step S162). Further, when the code quality detection mode is set (step S161), the divided image is recorded on the paper (step S163), the code quality is detected (step S164), and the code is corrected (step S165). The operation ends (step S1)
68).

The above-described embodiments of the present invention also include the following inventions.

(1) In a code printing apparatus for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code, other than the above codes, Medium surface information printing means for printing medium surface information including characters and images recognizable by itself on the print medium, and code printing for printing a code corresponding to the multimedia information on the print medium A code printing device comprising:

According to this aspect, the code can be surely printed with an appropriate print quality. (2) The medium surface information printing unit and the code printing unit each include a print head unit configured separately so as to match the type of information to be printed. The code printing device according to (1) above, wherein the code printing means is configured such that the print head units perform predetermined printing operations on the print medium independently of each other.

According to this aspect, it is possible to optimally set the dot pitch, the dot shape, the dot size, etc., and it is possible to reliably print the code with an appropriate print quality.

(3) The code printing device has a common print head section for printing the medium surface information and the code on the print medium, and the medium surface information printing means and the code printing means are The code printing apparatus according to (1) above, which is a print head unit control unit that controls the print head unit according to the type of information to be printed.

According to this aspect, the medium surface information and the code can be printed by one head, the dot shape and the size can be optimally set at a low cost, and the code can be reliably printed with an appropriate print quality. Can be printed.

(4) The print head control means changes the size of the print unit of the information printed by the print head so as to match the type of information to be printed. The code printing device according to (3).

According to this aspect, the medium surface information and the code can be printed by one head, the dot size can be set optimally at a low cost, and the code can be surely printed with an appropriate print quality. can do.

(5) In a code printing apparatus for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code, the code of the print medium A code printing device comprising a medium maintenance unit for servicing a print-scheduled surface to be printed.

According to this aspect, the printability of the print medium is improved when printing is performed on the print quality of the surface on which the code is to be printed due to stains, dust, or the like, or on paper without printability without smoothness or damaged paper. However, the code can be surely printed with an appropriate print quality.

(6) The medium maintenance means is a means for removing an optical obstacle on the planned printing surface of the print medium, or a smoothing means for smoothing the planned printing surface of the print medium. The code printing device according to (5) above, which includes any one of the units.

According to this aspect, the printability of the print medium is improved even if the print quality of the surface to be printed with the code is poor due to stains or dust, or the paper has no printability without smoothness. Can be printed on.

(7) In a code printing apparatus for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code, at least the print medium. A reading unit for optically reading the state of the print surface on which the code is printed or the code is printed; and a quality state determining unit for determining the quality state of the print surface read by the reading unit, A code printing device comprising:

According to this aspect, it is possible to inform the printer of whether the printed code has an appropriate print quality, it is possible to improve the print quality, and it is possible to reliably print the code with the appropriate print quality. it can.

(8) The quality condition determining means correlates the content of the code actually printed on the printing surface of the print medium and read by the reading means with the content of the code to be printed on the print medium. The code printing apparatus according to (7) above, further comprising: a correlation detection unit that determines the quality state by detecting the property.

According to this aspect, the print quality can be discriminated by a low-cost circuit or a simple process, and the print quality can be notified to the printer by the printed code, and the print quality can be improved. It is possible to print the code with the appropriate print quality.

(9) The code printing device further comprises print control means for adaptively controlling the printing of the code in accordance with the result of the determination made by the quality condition determining means. The code printer according to (8).

According to this aspect, it is possible to print by dividing the code while avoiding dust or stains, or changing the print width, length or code size. Further, by correcting only the portion having poor print quality, it is possible to reliably improve the print quality without deteriorating the initial quality in printing the code. By adaptively printing the code in this way, it is possible to reliably print the code with an appropriate print quality.

(10) The printing control means includes an informing means for informing, when the quality condition discriminating means discriminates an abnormality on the printing surface as a result of the discrimination, the printing control means includes the informing means. Code printer.

According to this aspect, it is possible to confirm that the printed code has an appropriate print quality.

(11) When the quality control unit determines that the printing surface is abnormal as a result of the determination, the printing control unit can recognize the operator to that effect at the abnormality corresponding portion on the printing surface. The code printing apparatus as described in (9) above, which includes means for printing as follows.

According to this aspect, in an apparatus or the like that automatically prints a plurality of print media unattended, it is possible to easily confirm later whether or not the code could be printed with an appropriate print quality. it can.

(12) In a code printing device for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code, A printing unit that prints a corresponding code on the print medium in an optically readable manner, a reading unit that optically reads a state of at least a print surface of the print medium on which the code is printed, and a reading unit read by the reading unit. The print state determination means for comparing the data sequence obtained by performing the code restoration process with the data sequence of the code to be printed on the print medium to determine whether the code print state is good or bad, and the print state determination means. A print control means for controlling the reprinting operation of the code according to the determined result, and a code mark. Apparatus.

According to this aspect, the print quality of the printed code is inspected, and the bad print quality is corrected.
Without compromising the initial quality of printing the code,
The print quality can be surely improved, and the code can be surely printed with an appropriate print quality.

(13) The print state determination means determines whether the print state of the code is good or bad for each minimum print unit of the code, and the print control means determines the code based on the determination result of the print state determination means. The code printing apparatus as described in (12) above, wherein the code printing apparatus is controlled so that reprinting is performed only for a minimum printing unit that is erroneously printed.

According to this aspect, the print quality of the printed code is inspected, and only the portion with the poor print quality, especially the minimum print unit is corrected, so that the initial quality in the printing of the code is not deteriorated, and the print quality is ensured. The print quality can be improved, and the code can be reliably and efficiently printed with the appropriate print quality.

(14) The print control means controls the reprinting after the planned printing surface of the print medium on which the code is printed is maintained in a predetermined state. ) Or (13) the code printing device.

According to this aspect, when the print quality of the printed code is poor, the print quality can be surely improved by erasing the printed code and reprinting, and the code can be surely printed with an appropriate print quality. Can be printed.

(15) The code printing apparatus further comprises driving means for displacing the print head portion of the printing means in one direction with respect to the print medium, and the print head portion and the read head portion of the reading means. The code printing apparatus according to (12) above, in which the print head portion is provided on the same support member, and the print head portion on the support member is provided closer to the one direction side than the reading head portion. .

According to this aspect, the driving means 1
By performing the code printing control once, the code can be printed and the code printing quality can be checked, and the processing time can be shortened.

(16) The code printing apparatus further comprises drive means for changing the print head portion of the printing means in one direction with respect to the print medium, and the print head portion and the read head portion of the reading means. The code printing apparatus according to (12) above, wherein the read head section on the support member is provided on the same support member, and the read head section is provided on the support member on the one direction side of the print head section. .

According to this aspect, the driving means 1
By performing the code printing control once, it is possible to perform the code printing while inspecting the defective quality of the code printing scheduled surface due to the stain or the dust, and it is possible to shorten the processing time.

(17) The head width of the reading head section along the direction orthogonal to the one direction is set to be larger than the head width of the printing head section along the same direction. Alternatively, the code printing device according to (16).

According to this aspect, 1
It is possible to reliably perform the above-mentioned inspection of the printed code range while performing the code printing and the code print quality inspection or the code print scheduled surface quality inspection by scanning once.

(18) In a code printing apparatus for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code, the code is the above-mentioned code. A plurality of blocks each including at least a data dot pattern arranged corresponding to the contents of the multimedia information and a marker arranged to have a predetermined positional relationship with respect to the data dot pattern for determining a reference position for reading the data dot pattern. A medium surface information printing means for printing on the print medium medium surface information including characters and images recognizable by itself, other than the code, which is configured by being arranged two-dimensionally, Print a data dot pattern corresponding to the contents of multimedia information on the print medium. And a code printing means, code printing apparatus markers in the code, characterized in that printed by the medium surface information printing means.

According to this aspect, the solid black portion of the marker can be surely printed, and the code can be surely printed with appropriate print quality.

(19) In a code printing device for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code, at least the print medium. A first print mode in which a code is printed according to the quality state of the print surface on which the code is printed; a second print mode in which a code is printed without detecting the quality state of the print medium; The mode control means for controlling to operate in any one of the third print modes for reprinting the code according to the quality state of the code printed on the print medium, and the mode control means. A code mark, comprising: a mode selection means for selecting a predetermined operation mode from the operation modes. Apparatus.

According to this aspect, each mode can be set in accordance with the purpose of the paper or the printing person, and the printing speed can be prioritized according to the situation at that time.
It is possible to prioritize print quality and improve usability.

[0168]

As described in detail above, according to the present invention,
Achieve low cost, dot pitch and dot shape,
Provide a code printing device that can set the dot size etc. optimally and further improves the printability of the print medium even when there is a quality defect on the code printing surface and prints the code reliably and accurately. can do.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a code printing device according to a first embodiment.

FIG. 2 is a CP of the code printing device according to the first embodiment.
It is a flow chart for explaining operation of U6.

3 is a flow chart for explaining in detail the operation of a subroutine executed in step S7 of FIG.

FIG. 4 is a flowchart for explaining an operation of a subroutine executed in step S12 of FIG.

FIG. 5 is a diagram showing a configuration of a code printing device according to a second embodiment.

FIG. 6 is a flow chart for explaining the operation of the subroutine executed in step S12 of FIG.

FIG. 7 is a diagram showing a configuration of a code printing device according to a third embodiment.

FIG. 8 is a flowchart for explaining the operation of the subroutine executed in step S12 of FIG.

FIG. 9 is a diagram for explaining the process of step S51 of FIG.

FIG. 10 is a flowchart for explaining the operation of a subroutine executed in step S12 of FIG.

FIG. 11 is a step S52 of FIG. 8 and a step S of FIG.
17 is a flowchart for explaining the operation of a warning processing subroutine executed at 72.

FIG. 12 is a diagram showing a configuration of a code printing device according to a fourth embodiment.

FIG. 13 is a diagram for explaining information dot array data.

FIG. 14 is a flowchart for explaining the operation of a subroutine executed in step S12 of FIG.

FIG. 15 is a diagram showing a configuration of a code printing device according to a fifth embodiment.

16 is a flow chart for explaining the operation of a subroutine executed in step S12 of FIG.

FIG. 17 is a diagram showing a configuration of a code printing device according to a sixth embodiment.

FIG. 18 is a diagram for explaining the operation of the sixth embodiment.

FIG. 19 is a diagram showing a configuration of a code printing device according to a seventh embodiment.

FIG. 20 is a diagram showing a case where a marker is recorded with a small dot diameter and a case where a marker is recorded with a large dot diameter.

FIG. 21 is a flowchart for explaining the operation of the subroutine executed in step S12 of FIG.

22 is a flowchart for explaining the operation of the subroutine executed in step S137 of FIG.

23 is a flowchart for explaining the operation of the subroutine executed in step S142 of FIG.

FIG. 24 is a flowchart for explaining a sequence of a subroutine executed in step S12 of FIG.

FIG. 25 is a diagram showing a configuration of a dot code according to a conventional technique.

FIG. 26 is a diagram showing a configuration of a code printing device according to a conventional technique.

FIG. 27 is a diagram for explaining a case where a code, a character, and paper surface information are recorded by the code printing device.

[Explanation of symbols]

 1 Printer Engine 2 Mode Setting Section 3 Display Section 4 Multimedia Information Input Section 5 Paper Surface Recording Information Input Section 6 CPU 7 ROM 8 RAM 9 Ink 10 Head Support Member 11 Code Recording Head 12 Paper Surface Recording Information Recording Head 13 Control Section 14 CPU bus

Claims (3)

[Claims] 1. A code printing device for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code, which is different from the above codes. Medium surface information printing means for printing medium surface information including characters and images recognizable by itself on the print medium, and code printing means for printing a code corresponding to the multimedia information on the print medium And a code printing device. 2. A code printing apparatus for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code, at least the code on the print medium. A reading unit for optically reading the state of the printed surface on which the printed or code is printed, and a quality state determination unit for determining the quality state of the printed surface read by the reading unit. A code printing device characterized by being provided. 3. A code printing apparatus for printing multimedia information including at least one of audio information, image information and digital code data on a print medium as an optically readable code, which corresponds to the multimedia information. A printing means for optically reading the code on the print medium, a reading means for optically reading the state of at least the print surface of the print medium on which the code is printed, and a code read by the reading means. And a print state determination unit that determines whether the code print state is good or bad by comparing the data sequence obtained by performing the restoration process with the data sequence of the code to be printed on the print medium, and determines the print state determination unit. And a print control unit that controls the reprinting operation of the code according to the result of the printing. .