JPH09187924A - Recording method, recording apparatus and recording mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the signal processing corresponding to scanning direction conversion processing and to also simplify the constitution of a printer by successively scanning the multivalue data corresponding to the predetermined width in the sub-scanning direction of a recording head in the sub-scanning direction at a time of the binarizing processing of multivalue raster data to subject the same to binarizing processing to perform recording. SOLUTION: A color correction processing block performs the color correction processing or halftone correction processing of multivalue data. After the passage through a gate array 1704 and an MPU 1701, the pixels corresponding to the number of nozzles of the recording head 1708 of the first row are binarized in a sub-scanning direction and the pixels on and after the second row are binarlzed in the same way. The data thus binarized are rearranged in the order of bit data to be outputted to a head driver 1705. Since the data of the scanning order of the head are stored in a buffer, these data are read as they are at a time of printing. Therefore, when the above mentioned processing is performed according to the control procedure stored in an ROM 1702 by the MPU 1701, the control of the head driver 1705 and the constitution of hardware become simple.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus and method for scanning a recording head to perform recording, for example, an inkjet recording apparatus and method.

[0002]

2. Description of the Related Art A schematic diagram of a printing operation in an ink jet printer is shown in FIG. The arrow 301 in FIG. 6 indicates the main scanning direction, and 302 indicates the sub scanning direction. For printing, the head 303 having a plurality of nozzles arranged in the sub-scanning direction is scanned in the main scanning direction, and a raster line of the number of nozzles (hereinafter,
It is called a "raster block". ) Is printed.

When one scan is completed, the paper feeding mechanism moves the paper in the direction opposite to the arrow 302 by the raster block. That is, the head 303 moves in the direction of arrow 3 relative to the paper.
Move in the 02 direction by the raster block width.

Conventionally, the scanning operation of the head 303 cannot be stopped midway. This is because if it is stopped, discontinuity occurs in the image and the quality is degraded.

The data transferred from the host that supplies the print information to the printer is generally raster data as shown in FIG. Reference numeral 401 in FIG. 7 indicates the outer shape of the recording paper, and the arrows therein indicate the data arrangement. As shown in FIG. 7, since the head prints a plurality of raster lines (= raster blocks) at a time, the data of the number of nozzles = the number of raster lines is held in the buffer in advance on the printer side and printed at the time of actual print output. It was necessary to convert the data reading order to the nozzle arrangement direction of the head.

FIG. 8 shows an example of a block diagram of only a signal processing portion in a conventional printer for this purpose. As shown in FIG. 8, in the conventional printer, the host 50
1 transfers the data to be printed out from the printer to the signal processing block 502 of the printer to be output.
The data transferred from the host 501 is once held in the buffer 504 via the interface circuit 503 of the signal processing block 502.

The controller 506 switches the address control at the time of writing to the buffer 504 and the address control (addressing) at the time of reading to convert the data reading order to the head nozzles and supplies it to the head driver 505.

[0008]

However, in the above method, it is difficult to increase the speed, and there is a problem in increasing the speed of printing. As a method to solve this, increase the scanning speed of the head when trying to speed up printing,
According to this, there is a method of increasing the ejection rate from the nozzle. However, due to the problems of mechanical control and ejection control of the head position, the scanning speed of the head cannot be increased so much as a practical problem.

Alternatively, there is a method of increasing the width of the head in the sub-scanning direction and increasing the number of nozzles. As a result, the effective printing speed can be increased without increasing the scanning speed of the head. However, in this case, the data in the raster block increases, and the buffer capacity for holding the raster block also increases, which increases the cost.

[0010]

The present invention has been made for the purpose of solving the above-mentioned problems, and is provided with, for example, the following structure as one means for achieving such an object.

That is, in a recording apparatus for performing recording by scanning a recording head, binarizing means for binarizing multivalued raster data to be recorded and output, and the binarizing means for binarizing
Print output means for supplying the print-processed binarized data to the recording head, and the binarizing means sequentially outputs multi-valued data of a predetermined width in the sub-scanning direction of the recording head. Scan in the sub-scanning direction to perform binarization processing,
The binarized data is output to the print output means.

Further, a host device for outputting recording information,
A recording system configured with a recording device that receives recording information from the host device and prints it out. Binary data for printing out multivalued data to be printed out to the host device by the recording device. And a print output unit for supplying the print head with the binarized data binarized by the binarizing unit of the host device to print it out. The binarizing means of the host device sequentially scans the multi-valued data of a predetermined width of the print head of the printing device in the sub-scanning direction in the sub-scanning direction, binarizes the multi-valued data, and binarizes the data. Is output to the recording device.

Further, for example, the recording head is an ink jet recording head for recording by ejecting ink. And for example, this recording head
A recording head for ejecting ink using thermal energy, characterized by comprising a thermal energy converter for generating thermal energy applied to the ink. Alternatively, the recording head has a plurality of nozzles arranged in the sub-scanning direction. In addition, the binarizing unit uses multi-valued data of a predetermined width in the sub-scanning direction of the recording head as a scan width, and performs scan direction conversion of the width of the number of nozzles in the sub-scanning direction of the recording head. To do.

[0014]

DETAILED DESCRIPTION OF THE INVENTION An example of an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

<Schematic Description of Apparatus Main Body> FIG. 1 is an external perspective view showing an outline of the configuration of an ink jet printer IJRA which is a typical example of an embodiment according to the present invention. In FIG. 1, a carriage HC that engages with a spiral groove 5004 of a lead screw 5005 that rotates via driving force transmission gears 5011 and 5009 in conjunction with forward and reverse rotation of a drive motor 5013 has pins (not shown). And arrow a,
It is reciprocated in the b direction. An ink jet cartridge IJC is mounted on the carriage HC. 5
A paper pressing plate 002 presses the paper against the platen 5000 in the moving direction of the carriage. 5007,
5008 is a photocoupler, which is a lever 500 of the carriage.
6 is a home position detecting means for confirming the existence of 6 in this area and switching the rotation direction of the motor 5013. Reference numeral 5016 is a member that supports a cap member 5022 that caps the front surface of the recording head. Reference numeral 5015 is a suction unit that sucks the inside of the cap.
The suction recovery of the recording head is performed via 23. Reference numeral 5017 is a cleaning blade, and 5019 is a member that allows this blade to move in the front-rear direction.
These are supported by 8. It goes without saying that the blade is not limited to this form and a known cleaning blade can be applied to this example. Reference numeral 5012 denotes a lever for starting suction for recovery of suction. The lever 5012 moves with the movement of the cam 5020 engaging with the carriage, and the driving force from the drive motor is controlled by known transmission means such as clutch switching. Is done.

The capping, cleaning, and suction recovery are configured so that the desired processing can be performed at their corresponding positions by the action of the lead screw 5005 when the carriage comes to the area on the home position side. As long as the desired operation is performed at the timing, any of the above can be applied to this example.

<Description of Control Configuration> Next, a control configuration for executing the recording control of the above-mentioned apparatus will be described.
FIG. 2 is a block diagram showing a configuration of a control circuit of the inkjet printer IJRA. In the figure showing a control circuit, 1700 is an interface for inputting a recording signal, 1
701, an MPU; 1702, a program ROM for storing a control program executed by the MPU 1701;
Is a dynamic RAM for storing various data (such as the recording signal and recording data supplied to the head). A gate array 1704 controls supply of print data to the print head 1708, and also controls data transfer between the interface 1700, the MPU 1701, and the RAM 1703. Reference numeral 1710 denotes a carrier motor for transporting the recording head 1708, and reference numeral 1709 denotes a transport motor for transporting the recording paper. Reference numeral 1705 denotes a head driver which has a print buffer and drives a recording head.
Reference numerals 6 and 1707 denote motor drivers for driving the transport motor 1709 and the carrier motor 1710, respectively.

The operation of the above control structure will be described. When a recording signal is input to the interface 1700, the recording signal is converted into printing recording data between the gate array 1704 and the MPU 1701 according to the control described later. Then, the motor drivers 1706 and 1707 are driven, and the recording head is driven according to the recording data sent to the head driver 1705 to perform printing. The supply control of print data to the print head, which is a characteristic control in this example, will be described in detail later.

The present invention is particularly equipped with means for generating thermal energy as energy used for ejecting ink (for example, an electrothermal converter or a laser beam) in the ink jet recording system, and by the thermal energy. The printing apparatus of the type that causes a change in the state of ink has been described. According to such a method, the recording density is increased,
High definition can be achieved.

With regard to its typical structure and principle, see, for example, US Pat. Nos. 4,723,129 and 4740.
It is preferable to use the basic principle disclosed in the specification of Japanese Patent No. 796. This method can be applied to both the so-called on-demand type and continuous type. In particular, in the case of the on-demand type, liquid (ink)
By applying at least one drive signal corresponding to the recorded information and providing a rapid temperature rise exceeding the film boiling to an electrothermal transducer arranged corresponding to the sheet or the liquid path in which Since thermal energy is generated in the electrothermal transducer and film boiling occurs on the heat-acting surface of the recording head, bubbles in the liquid (ink) corresponding to this drive signal on a one-to-one basis can be formed. It is valid. By discharging the liquid (ink) through the discharge opening by the growth and contraction of the bubble, at least one droplet is formed. When the drive signal is formed into a pulse shape, the growth and shrinkage of the bubble are performed immediately and appropriately, so that the ejection of the liquid (ink) having particularly excellent responsiveness can be achieved, which is more preferable.

As the pulse-shaped drive signal, those described in US Pat. Nos. 4,463,359 and 4,345,262 are suitable. If the conditions described in US Pat. No. 4,313,124 of the invention relating to the rate of temperature rise on the heat acting surface are adopted, more excellent recording can be performed.

As the constitution of the recording head, in addition to the combination constitution of the discharge port, the liquid passage, and the electrothermal converter (the straight liquid passage or the right-angled liquid passage) as disclosed in the above-mentioned specifications, The present invention also includes configurations using US Pat. No. 4,558,333 and US Pat. No. 4,459,600, which disclose configurations in which the heat-acting surface is arranged in a bending region. In addition, for multiple electrothermal transducers,
JP-A-59-123670 which discloses a configuration in which a common slot is used as a discharge part of an electrothermal transducer, and JP-A-59-123670 which discloses a configuration in which an opening for absorbing a pressure wave of thermal energy corresponds to a discharge part. A configuration based on 138461 may be adopted.

Further, as a full line type recording head having a length corresponding to the maximum recording medium width that can be recorded by the recording apparatus, the length can be increased by combining a plurality of recording heads as disclosed in the above-mentioned specification. Either of the structure satisfying the requirement or the structure as one recording head integrally formed may be used.

In addition, by being mounted on the apparatus main body, it can be electrically connected to the apparatus main body and can be supplied with ink from the apparatus main body by a replaceable chip type recording head or the recording head itself. Alternatively, a cartridge type recording head provided with an ink tank may be used.

Further, it is preferable to add recovery means for the recording head, preliminary auxiliary means, etc., which are provided as a constitution of the recording apparatus of the present invention, because the effect of the present invention can be further stabilized. . If these are specifically mentioned, capping means for the recording head, cleaning means, pressurizing or suction means, preheating means using an electrothermal transducer or another heating element or a combination thereof, and printing Performing a preliminary ejection mode for performing another ejection is also effective for performing stable printing.

Further, the recording mode of the recording apparatus is not limited to the recording mode of only the mainstream color such as black, but the recording head may be integrally formed or a plurality of combinations may be used. Alternatively, the device may be provided with at least one of full-color mixed colors.

In the present embodiment described above, the ink is described as a liquid, but an ink that solidifies at room temperature or below, or one that softens or liquefies at room temperature may be used, or an ink jet system. In general, the temperature of the ink itself is adjusted within the range of 30 ° C. or higher and 70 ° C. or lower to control the temperature of the ink so that the viscosity of the ink is within the stable ejection range. It may be in a liquid form.

In addition, in order to positively prevent the temperature rise due to thermal energy from being used as energy for changing the state of the ink from the solid state to the liquid state,
Alternatively, in order to prevent evaporation of the ink, an ink which solidifies in a standing state and liquefies by heating may be used. In any case, by applying thermal energy such as ink that is liquefied by applying thermal energy according to the recording signal and liquid ink is ejected, or that begins to solidify when it reaches the recording medium. The present invention can be applied to the case where an ink having a property of being liquefied for the first time is used. In such a case, as described in JP-A-54-56847 or JP-A-60-71260, the ink is held in a liquid state or a solid state in the concave portion or through hole of the porous sheet. It is good also as a form which opposes an electrothermal transducer. In the present invention, the most effective one for each of the above-mentioned inks is to execute the above-mentioned film boiling method.

In addition, as a form of the recording apparatus according to the present invention, in addition to one provided integrally or separately as an image output terminal of information processing equipment such as a computer, a copying apparatus combined with a reader or the like, and further transmission / reception It may take the form of a facsimile machine having a function.

In the printer of this embodiment shown in FIG. 2, the gate array 1704 and the MPU 1 are provided for the print data sent from the host via the interface 1700.
As the processing by 701, the processing shown in FIG. 3 is performed. That is, the print code / data 601 sent via the interface 1700 generated by the host application program is transferred to the DRAM 17 by the rasterizer 602.
In 03, it is developed into a raster image. At this time, the entire page may be expanded at one time, or may be separated in the sub-scanning direction and expanded, and after the processing of that block is completed and transferred to the printer, the expansion of the next block may be performed (band rendering ).

The data developed here is assumed to be color data or multi-valued data having halftones. The color correction processing block 603 performs color correction processing or halftone correction processing of the developed multi-valued data. The data after this processing is multi-valued data for each pixel. Binarization processing block 60
Reference numeral 4 performs binarization processing of the color-corrected data. Then, the print data for which the binarization processing has been completed is output to the head driver 1705. In the inkjet method, since it is generally not possible to express a halftone by the ejection of the head nozzle, the halftone is a dither method or an error diffusion (E) method.
D) Expressed by the method.

In this example, any method may be adopted as the binarization processing, but in any method, a dither matrix or an error filter pattern is used for the pixel of interest as follows. Binarization processing is performed in accordance with the scan direction described in.

FIG. 4 shows an example of binarization processing in the binarization processing block 604 and an output to the head driver 1705 in this example. In the following description, the case where the binarization process is performed by the gate array 1704 and the MPU 1701 will be described as an example. In FIG. 4, 101 is the outline of the raster image that has been developed. Reference numeral 102 indicates the number of raster lines having the same number of pixels as the number of nozzles of the recording head 1708. The arrow indicates the direction in which the dither matrix or the error filter pattern is scanned and binarized.

In the binarization processing 604, for the raster image 101 developed as shown in FIG. 4, first, as indicated by an arrow in the drawing, pixels corresponding to the number of nozzles of the recording head 1708 in the first column are formed. Is binarized in the sub-scanning direction. And
When this binarization processing is completed, subsequently, pixels corresponding to the number of nozzles of the print head 1708 in the second column are binarized in the sub-scanning direction. In this way, the binarization is sequentially repeated in the main scanning direction as in the third and fourth columns.

When the binarization processing of all the pixels in the main scanning direction is completed, the pixels corresponding to the number of nozzles of the next print head 1708 in the sub scanning direction are binarized in the sub scanning direction as described above. .

In this way, in this example, the binarized data is rearranged in the order of bit data in the direction of the arrow in FIG. 4 and output to the head driver 1705. Since the rearranged data matches the head scan order, the head scan order data is stored in the buffer of the head driver 1705. As a result, when printing, the data in this buffer may be read as it is. Therefore, when the MPU 1701 is configured to perform the above processing according to the control procedure stored in the ROM 702, the head driver 1705 can be controlled easily, and the configuration can be simplified. This means simplification of the hardware configuration of the head driver 1705, which greatly contributes to cost reduction.

However, when performing band rendering as described above, the band width must be wider than 102.

As described above, according to this example, even when the scan direction of the pixel to be binarized is changed, the addressing order of the pixel data is simply changed without increasing the calculation amount. As a result, the signal processing for the scan direction conversion processing inside the printer can be reduced. Further, the configuration of the head driver 1705 can be simplified, and the capacity of the built-in buffer can be reduced, which contributes to cost reduction.

[Second Example of Embodiment of the Invention] In the above description, the case where the binarization process is performed on the printer side has been described as an example, but the processing capability of the host computer is improved by the recent development of semiconductor technology. As a result, there has been an increasing trend to have the host computer perform the processing on the I / O device side connected to the host computer, reduce the processing on the I / O device side, and reduce the price.

This is to perform various controls on the side of the host computer as much as possible. In such a case, all the processes up to the binarization process 604 in the image processing shown in FIG. It is also conceivable to perform the processing on the host computer side, send the same data as the output to the head driver 1705 of FIG. 3 to the printer side, and store this in the output buffer of the printer.

Of the image processing shown in FIG. 3, all processing up to the binarization processing 604 is performed on the host computer side, and the same data as the output to the head driver 1705 in FIG. A second example of the embodiment of the present invention in which the above is stored in the output buffer will be described below.

In the second example, the structure on the printer side can be simplified and the manufacturing can be performed at a lower cost. FIG.
In the binarization processing on the host side in the second example, the raster image 10 expanded as shown in FIG.
1, the number of pixels corresponding to the number of nozzles of the recording head 1708 in the first column is set to 2 in the sub-scanning direction as indicated by the arrow in the figure.
Value. Then, the binarized data is output to the printer. The printer stores this in the print buffer. Since this stored data is data in the scan order of the head, the data in this buffer is read as it is during printing and the recording head is driven.

On the host side, in synchronization with this print output, pixels corresponding to the number of nozzles of the print head in the second row are binarized in the sub-scanning direction and transferred to the printer. In this manner, the third and fourth columns are sequentially and repeatedly binarized in the main scanning direction, transferred to the printer side, and sequentially printed out on the printer side.

When the binarization processing of all the pixels in the main scanning direction is completed, the pixels corresponding to the number of nozzles of the next print head in the sub scanning direction are binarized in the sub scanning direction in the same manner as described above. Output to printer.

However, when performing band rendering as described above, the band width must be wider than 102.

As described above, in the second example, the binarized data on the host side is transferred to the printer in the form of being rearranged in the order of bit data in the direction of the arrow in FIG. Since the rearranged data matches the head scan order, the data in the head scan order is stored in the print buffer on the printer side. As a result, at the time of printing, it is sufficient to read the data in the buffer as it is, so that operations such as special rearrangement are unnecessary, a small buffer capacity is sufficient, the configuration can be simplified, and the cost can be reduced.

Here, considering the data transfer amount and speed between the host and the printer, when the ejection rate of the head is 10 KHz and the number of nozzles is 256, the data throughput is 320 Kbytes / sec. Also, the head scan is A4 horizontal size = 11 inches, 360 dp
Assuming i, the data amount is 126.72 Kbytes. Therefore, if the data transfer from the host satisfies this condition, no further buffer is needed. If the data is color data of four YMCK colors, the transfer rate and the data amount are four times as much. The actual buffer capacity depends on the transfer rate and capacity of the host, and is determined so that the data flow is not interrupted during scanning in the main scanning direction of the head.

[Third Example of Embodiment of the Invention] FIG. 5 shows a third example of the embodiment of the present invention. In the third example, a case where binarization processing is performed by the error diffusion method will be described as an example. In FIG. 5, reference numeral 102 denotes a raster block having the same number of pixels as the number of head nozzles, as in FIG. 201
Is an error filter pattern used in the binarization process of the second example, 202 is the pixel of interest, and the arrow below it indicates the scan direction when the binarization process is performed.

In the error diffusion method, the error of pixels other than the pixel of interest in the error filter is accumulated by weighting of the filter, added to the pixel of interest, and then binarized. Therefore, it is necessary to hold the error of the line portion scanned by the error filter. The target pixel of the error filter is the raster block 102 having the same number of pixels as the number of head nozzles as in the first example.
Scan inside.

Further, reference numeral 203 in FIG. 5 shows the same error filter as the error filter pattern 201, but the pixel of interest 204 reaches the lower end of the raster block. The problem here is the target pixel 2 of the error filter.
A portion 205 precedes 04 in the scanning direction. If there is no error information for this portion, the matching of the boundary with the next raster block will deteriorate and the quality will deteriorate.

In the third example, in order to prevent this, the error filter is scanned from the bottom of the raster block 205.
The error information is generated by binarizing this part. Therefore, even when band rendering is performed, rasterization is performed by 205 from the lower end of the raster block.

Reference numeral 206 is the same error filter as the error filter pattern 201, but the target pixel 207 is at the upper end of the raster block 102. Here, 208 is the range of the error filter related to the error information of the previous raster block. The pixel of interest is the upper edge 209 of the raster block
The scanning is started from, but this portion is once binarized when the binarization processing of the immediately preceding raster block is performed.

However, at that time, 21 preceding the pixel of interest
Since the error information = 0 is calculated for the portion of 0, re-binarization is performed here. This can reduce the unnaturalness of the boundary area of the raster block.

In the above processing, in the third example,
In applying the error diffusion method as the binarization processing, in addition to the width 102 of the scan block for scanning the error filter, the past reference pixel regions 208, 20 of the error filter are also added.
5 is retained. That is, 21 shown in FIG.
The error information for 1 is held and used. That is, “the number of printer nozzles in the sub-scanning direction + the number of pixels in the binarization matrix−
This can be dealt with only by providing a storage capacity corresponding to the capacity for holding the error information of 1 or more pixels.

As described above, according to the embodiment of the present invention, the scanning direction is converted for each width of the number of nozzles of the head when the image data is binarized, and the data is transferred to the printer in the bit sequence. By doing so, the scan direction conversion process is unnecessary on the printer side without increasing the host process, and the print data buffer amount accompanying this can be reduced.

The present invention also provides a "host computer,
The invention may be applied to a system including a plurality of devices such as an interface and a printer, or to an apparatus including one device such as a copying machine. Further, it goes without saying that the present invention can be applied to the case where it is implemented by supplying a program to a system or an apparatus. In this case, the storage medium storing the program according to the present invention constitutes the present invention. Then, by reading the program from the storage medium to the system or device, the system or device operates in a predetermined manner.

[0057]

As described above, according to the present invention, it is possible to reduce the signal processing corresponding to the scan direction conversion processing inside the printer as a whole and to simplify the hardware configuration of the printer, which contributes to cost reduction.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing the outline of the configuration of an inkjet printer IJRA that is a typical example of an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a control circuit of the inkjet printer IJRA according to the present embodiment.

FIG. 3 is a diagram for explaining the flow of image processing for printing out print codes / data in this example.

FIG. 4 is a diagram showing an example of binarization processing in the binarization processing block shown in FIG. 3 and an output to a head driver.

FIG. 5 is a diagram for explaining binarization processing in the second example of the exemplary embodiment of the present invention.

FIG. 6 is a diagram showing an example of a printing operation of a recording head.

FIG. 7 is a diagram showing general raster data in a conventional printer.

FIG. 8 is a diagram showing a flow of signals such as print information in the printer.

[Explanation of symbols]

 101 outline of developed raster image 102 raster block 201 error filter example 202 target pixel 303 printer head 501 host 502 printer signal processing unit 503 I / F 504 buffer 505 head driver 506 control circuit 601 print code / data 602 rasterizer 603 color correction processing Block 604 Binarization processing block 1708 Recording head

Claims (18)

[Claims] 1. A recording method in a recording apparatus for performing recording by scanning a recording head, which comprises multi-valued raster data having a predetermined width in a sub-scanning direction when binarized. A recording method, wherein value data is sequentially scanned in the sub-scanning direction to be binarized, and the binarized data is recorded. 2. The recording method according to claim 1, wherein the recording head is an inkjet recording head that performs recording by ejecting ink. 3. The recording head is a recording head which ejects ink by utilizing thermal energy, and is provided with a thermal energy converter for generating thermal energy applied to the ink. The recording method according to item 2. 4. The recording method according to claim 1, wherein the recording head has a plurality of nozzles arranged in the sub-scanning direction. 5. The multi-valued data for a predetermined width of the recording head in the sub-scanning direction is used as a scan width, and the scan direction conversion of the width of the number of nozzles in the sub-scanning direction of the recording head is performed. Alternatively, the recording method according to claim 3. 6. A host device configured to output record information and a recording device configured to receive and print out record information from the host device, wherein the binarization process is executed by the host device. 6. The recording method according to claim 1, wherein the binarized data is output. 7. A host device that outputs record information and a recording device that receives and prints out the record information from the host device, and the host device outputs multivalued data to the recording device as record information. 6. The recording according to claim 1, wherein the recording device receives the multi-valued data, converts the multi-valued data into binarized data by the binarization process, and prints out the multi-valued data. Method. 8. A host device that outputs record information and a recording device that receives and prints out the record information from the host device, and the host device outputs code data as the record information to the recording device. 8. The recording method according to claim 6, wherein the recording device expands the code data into a raster image to be printed out and performs binarization processing. 9. A printing apparatus which scans a print head for printing, comprising binarizing means for binarizing multivalued raster data to be printed out, and binarizing by the binarizing means. Print output means for supplying the processed binarized data to the recording head to print out the binarized data, wherein the binarizing means sequentially outputs multi-valued data of a predetermined width in the sub-scanning direction of the recording head to the sub-element. A recording apparatus, which scans in a scanning direction, binarizes, and outputs the binarized data to the print output unit. 10. The recording apparatus according to claim 9, wherein the recording head is an inkjet recording head that performs recording by ejecting ink. 11. The recording head is a recording head which ejects ink by utilizing thermal energy, and is provided with a thermal energy converter for generating thermal energy applied to the ink. Item 10. The recording device according to item 10. 12. The recording apparatus according to claim 9, wherein the recording head has a plurality of nozzles arranged in the sub-scanning direction. 13. The binarizing means converts multi-valued data of a predetermined width in the sub-scanning direction of the print head into a scan width and performs scan direction conversion of the width of the number of nozzles in the sub-scanning direction of the print head. Claim 10 or Claim 1 characterized by
The recording apparatus according to 1. 14. A recording system comprising a host device for outputting recording information and a recording device for receiving and printing out the recording information from the host device, the multi-valued data to be printed out to the host device. Is provided with a binarizing unit for converting the data into binary data for printing out by the recording device, and the recording device is configured to binarize the binarized data which is binarized by the binarizing unit of the host device. The host device includes a print output unit configured to supply a print output to the head, and the binarization unit of the host device sequentially scans the multi-valued data of a predetermined width of the recording head of the recording device in the sub scanning direction in the sub scanning direction. And a binarizing process, and the binarized data is output to the recording device. 15. The recording system according to claim 14, wherein the recording head is an inkjet recording head that performs recording by ejecting ink. 16. The recording head is a recording head which ejects ink by utilizing thermal energy, and is provided with a thermal energy converter for generating thermal energy applied to the ink. Item 14. The recording system according to Item 14. 17. The recording head has a plurality of nozzles arranged in the sub-scanning direction.
17. The recording system according to any one of 1 to 16. 18. The binarizing means of the host device converts multi-valued data of a predetermined width in the sub-scanning direction of the print head into a scan width and converts the width of the number of nozzles in the sub-scanning direction of the print head in the scan direction. 16. The method according to claim 15, wherein
Alternatively, the recording system according to claim 16.