JP3224048B2 - Ink jet recording apparatus and coating method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus using an ink jet recording system for performing recording by discharging and attaching ink droplets to a recording medium, and particularly to a recording apparatus which is stable without being affected by the type of recording medium. The present invention relates to an ink jet recording apparatus capable of obtaining a high quality printed image.

[0002]

2. Description of the Related Art Ink jet recording methods include various recording ink ejection methods, for example, an electrostatic suction method, a method of applying mechanical vibration or displacement to recording ink using a piezoelectric element,
Heating and bubbling the recording ink to generate and fly small ink droplets by using the pressure, etc., and perform recording by attaching some or all of them to a recording medium such as paper. An ink jet recording apparatus using this ink jet recording method has attracted attention as a recording apparatus that generates little noise and can perform high-speed printing, high-quality printing, and multicolor printing.

In such an ink-jet recording apparatus, an inorganic pigment such as an inorganic pigment is formed on a base paper so that the recording ink adhered onto the recording medium by ink-jet recording does not bleed or flow to impair the print quality. Inkjet paper coated with a layer of a special material that absorbs the coloring components in the recording ink, with a high porosity, large water absorption, and a special ink jet film with a special surface treatment to prevent the recording ink from flowing In this case, a dedicated recording medium such as was used.

[0004]

However, unless such a limited recording medium is used, there is a problem that high-quality printing cannot be performed in the ink jet recording system. Furthermore, if a user handling the ink jet recording apparatus mistakenly uses the type of recording medium by mistake, not only high-quality print recording cannot be performed due to bleeding of the recording ink, but also the recording apparatus due to the flow of the recording ink. There was a problem of causing fatal contamination inside.

Accordingly, the present invention solves the above-described problems, enables high-quality ink jet recording without being limited to the type of recording medium to be used, and furthermore, the inside of a recording apparatus due to the flow of recording ink. An object of the present invention is to provide an ink jet recording apparatus which does not cause contamination of the recording medium.

[0006]

In order to solve the above problems SUMMARY OF THE INVENTION, ejecting recording ink according to recording signals in the present invention, an ink jet recording apparatus for recording an image on a recording medium, the recording Coating means for coating a recording material with a coating material on a recording medium before recording is performed on the recording medium in response to the signal; delay means for delaying the recording signal; and output of the delay means. recording means for recording in response to the signal, the object serial
Whether to coat the coating material on the recording medium
Is determined by the recording signal, and the result of the determination is
Determining means for outputting to the coating means;
The resolution of the column is the reciprocal of an arbitrary integer to the resolution of the recording head
. In the main scanning direction and sub-scanning direction.
Record on at least one of the adjacent pixels
To cover multiple pixel areas
I do . In the present invention, recording is performed in accordance with a recording signal.
Ink that ejects ink for printing and records an image on a recording medium
This is a jet recording device that prints recording ink on a recording medium.
Before the recording is performed according to the recording signal.
The coating material on the recording medium
Coating means, delay means for delaying the recording signal,
Recording means for performing recording in accordance with the output signal of the delay means
And the resolution of the coating means is
Is the value obtained by multiplying the resolution of the
Of adjacent pixels in the scanning direction and sub-scanning direction.
When printing on at least one of them, an area of multiple pixels
Coating equipment for inkjet recording
During the coating operation, the coating material is formed on the recording medium.
Whether coating the fee, determine by the recording signal
And outputting the result of the determination to the coating means.
And a coating method.

[0007]

According to the above-mentioned coating means, delay means and recording means, a coating material containing a resin material having such a characteristic that the recording ink is appropriately absorbed or moderately soluble can be recorded by the recording ink. A predetermined area on the recording medium can be coated before the recording is performed. Thereby, the portion on the recording medium on which the image recording with the recording ink is formed is performed on the coating film made of the resin material having the above-described characteristics regardless of the type of the recording medium to be used. It is possible to provide an ink jet recording apparatus that enables high-quality ink jet recording without being limited to the type of recording medium to be used.

The following is a description of an ink jet recording apparatus.
This will be explained with an example. ( First Example ) A first example of an ink jet recording apparatus is shown in FIGS.
A description will be given based on FIG. 4 and FIG.

FIG. 1 is a block diagram showing a configuration of a first example of an ink jet recording apparatus . FIG. 2 is a schematic diagram of the ink jet recording apparatus according to the first example . FIG. 3 is an explanatory diagram illustrating the relationship between the coating area and the recording area according to the first example . FIG. 4 is a timing chart for explaining the temporal relationship between the coating operation and the recording operation according to the first example . FIG. 5 is a configuration diagram showing the configuration of the delay means. In each drawing, the same portions are denoted by the same reference numerals.

In FIG. 1, reference numeral 10 denotes a coating means,
A recording material containing polyvinyl alcohol or the like is coated on the recording medium according to the recording signal 51. The coating means 10 can use various ink jet recording heads such as an ink jet recording head using the vibration force of a piezoelectric element and a bubble jet head using film boiling. In the first example , an on-demand type ink jet recording head is particularly used. Was used. 11 is a delay means,
O (first-in first-out memory), RAM (random access memory), latch, or the like. The delay unit 11 temporarily stores the input data and outputs the data as needed. Reference numeral 12 denotes a recording unit, which is a known inkjet recording head.

In FIG. 2, reference numeral 14 denotes a recording medium,
Examples include coated paper, special coated paper of a small amount, PPC paper, and OHP film. Reference numeral 15 denotes a platen roller which is rotated by a motor or the like. Reference numeral 16 denotes a transfer table on which the coating means 10 and the recording means 12 are fixed. Reference numeral 17 denotes a lead screw, which scans the carrier 16 by rotating. Reference numeral 18 denotes a guide rail, which slides the transfer table 16. Reference numeral 19 denotes a housing in which the platen roller 15, the lead screw 17, and the like are provided.

In FIG. 4, the position 57 is the position of the coating means 10.
Indicates the position where coating can be performed, and the numbers in the figure indicate the columns of the pixels corresponding to the positions. Similarly, a position 58 indicates a position at which the recording unit 12 can record, and a numeral indicates which column of the pixel corresponds. In the case of the first example , the coating unit 10 is ahead of the recording unit 12 by a distance corresponding to two pixels in the main scanning direction indicated by the arrow 104. In this case, the delay means 11 can be easily realized by the configuration shown in FIG. However, the delay unit 11 is provided with the number of nozzles, the bit length per pixel, and the delay amount (here, 2
(Corresponding to a pixel).

Next, the operation of the first example will be described with reference to FIGS.
This will be described with reference to FIG. As the platen roller 15 rotates in the direction of arrow 101, the recording medium 14 wound around the platen roller 15 is transported in the direction of arrow 102. The platen roller 15 aligns the desired recording start position with the position of the coating means 10 and temporarily stops the conveyance.
In addition, the lead screw 17 is rotated to move the carriage 16 to the home position 105 to prepare for the start of recording.

Recording is performed as follows. The recording signal 51 is input to the coating means 10 and the delay means 11. The coating means 10 coats the recording medium with a coating material according to the recording signal 51. Accordingly, the lead screw 17 rotates, and the carrier 16 moves on the lead screw 17 and the guide rail 18 in the main scanning direction indicated by the arrow 104. Thus, the coating means 10 coats the recording medium with the coating material while moving in the main scanning direction indicated by the arrow 104. Further, the delay unit 11 delays the recording signal 51 by a predetermined time, and inputs the delayed signal 52 to the recording unit 12. The delay time is at least longer than the time required for the transfer table 16 to move to match the coating position of the coating means 10 with the recording position of the recording means 12. The recording unit 12 discharges recording ink in response to the delay signal 52 to form an image on the coating material on the recording medium 14.

The above-described recording operation will be described in more detail by taking as an example the case of recording the letter T in FIG.
Assuming that one cell in FIG. 3 corresponds to a pixel which is the minimum unit of recording, a case where the second row 23 in the figure is recorded on a recording medium will be described as an example.

The lead screw 17 has a drive clock 63
And the carrier 16 is moved by one pixel in one clock. When the driving clock 63 is input by one clock, the coating means 10 moves to a position where the pixels in the first column can be coated. However, since the pixel is a pixel for which recording is not to be performed (second row, first column), the recording signal 51 Does not form. The coating means 10 does not perform coating according to the recording signal 51. Also, as shown in FIG.
The recording signal 51 is latched by the rising edge of
The internal signal 55 becomes LOW. Next, at the falling edge of the latch signal 54, the internal signal 55 is latched, and the output of the latch 26 becomes LOW.

Next, when one clock is input, the coating means 10 moves to a position where the pixels in the second column can be coated. At this time, since the coating means 10 is on the pixel to be printed, the pulse of the recording signal 51 is input to the coating means 10 and the coating material is applied to an area corresponding to the pixel on the second row and second column on the recording medium. Coating. Further, the output of the latch 26 is latched by the rising edge of the latch signal 54, and the output of the latch 27 becomes LOW. At the same time, the recording signal 51 is latched, and the internal signal 55 becomes HIGH.
Becomes Next, at the falling edge of the latch signal 54, the output of the latch 27 is latched, and the internal signal 56 is
W. At the same time, the internal signal 55 is latched and latch 2
The output of No. 6 also becomes HIGH.

Next, when one clock is input, the coating means 10 moves to a position where the pixels in the third column can be coated, and the recording means 12 moves to a position where the pixels in the first column can be recorded. At this time, since the coating means 10 is on the pixel to be printed, the pulse of the recording signal 51 is input to the coating means 10 and the coating material is applied to an area corresponding to the pixel on the second row and third column on the recording medium. Coating. Further, the delay signal 52 becomes LOW due to the logical product of the internal signal 56 and the driving clock 63, and the recording unit 12 does not perform recording on the pixels in the first column. Further, at the rising edge of the latch signal 54, the latch 27 latches the output of the latch 26, and the output of the latch 27 becomes HIGH. At the same time, the recording signal 51 is latched, and the internal signal 55 becomes HIGH. Next, by the falling edge of the latch signal 54,
The latch 28 latches the output of the latch 27 and outputs the internal signal 5
6 becomes HIGH. At the same time, the latch 26
5 is latched, and the output of the latch 26 becomes HIGH.

Further, when one clock is input, the coating means 10 moves to a position where the pixels in the fourth column can be coated, and the recording means 12 moves to a position where the pixels in the second column can be recorded. At this time, since the coating means 10 is on the pixel to be printed, the pulse of the recording signal 51 is input to the coating means 10 and the coating material is applied to the area corresponding to the pixel on the second row and the fourth column on the recording medium. Coating. Also,
Due to the logical product of the internal signal 56 and the drive clock 63, the delay signal 52 becomes HIGH, and the recording unit 12 performs recording by discharging recording ink onto the coating material of the pixels in the second column. Further, at the rising edge of the latch signal 54, the latch 27 latches the output of the latch 26, and the output of the latch 27 becomes HIGH. At the same time, the latch 25 latches the recording signal 51, and the internal signal 55 becomes HIGH. Next, by the falling edge of the latch signal 54,
The latch 28 latches the output of the latch 27 and outputs the internal signal 5
6 becomes HIGH. At the same time, the latch 26
5 is latched, and the output of the latch 26 becomes HIGH.

By repeating the above operations, recording can be performed in the main scanning direction. Then, when the recording in the main scanning direction is completed, the lead screw 17 is rotated in the opposite direction to the recording, and the carriage 16 is moved to the home position 105 to prepare for the next recording. Further, the platen roller 15 is rotated in the direction of arrow 101, the recording medium 14 wound around the platen roller 15 is transported by one line in the direction of arrow 102, and recording is performed in the next main scanning direction.

By repeating the above operation, the recording is performed in one direction, and the coating material can be coated only on the area where the recording is to be performed before the recording is performed on the recording medium by the recording ink. Accordingly, high-quality recording can be realized without being limited to the type of the recording medium. ( Second Example ) A second example of the ink jet recording apparatus will be described with reference to FIGS. 1, 3, 6, and 7. FIG.

FIG. 1 is a block diagram showing the configuration of a second example of the ink jet recording apparatus . FIG. 6 is a schematic diagram of an ink jet recording apparatus according to a second example . FIG. 3 is an explanatory diagram illustrating the relationship between the coating area and the recording area according to the second example . FIG. 7 is a configuration diagram showing the configuration of the delay means. Also,
The same reference numerals are used for the same parts in each drawing. Hereinafter, the description of the already described drawings will be omitted.

In FIG. 6, reference numeral 14 denotes a recording medium;
Examples include coated paper, special coated paper of a small amount, PPC paper, and OHP film. Reference numeral 15 denotes a platen roller which is rotated by a motor or the like. Reference numeral 16 denotes a transfer table on which the coating means 10 and the recording means 12 are fixed. Reference numeral 17 denotes a lead screw, which scans the carrier 16 by rotating. Reference numeral 18 denotes a guide rail, which slides the transfer table 16. Reference numeral 19 denotes a housing in which the platen roller 15, the lead screw 17, and the like are provided.

The coating means 10 is ahead of the recording means 12 by one line in the sub-scanning direction indicated by the arrow 107. In this case, the delay means 11 can be realized by the configuration shown in FIG. 7, and the recording signal 51 is recorded at a predetermined address of the line buffer selected by the address 60 and the read / write signal 61. The memory capacity of the line buffer differs depending on the number of nozzles of the recording unit 12, the bit length per pixel, and the delay amount. Here, at least one
Any capacity may be used as long as it can store the maximum amount of data that can be recorded by the recording unit 12 in one main scanning direction.

Next, the operation of the second example will be described. As the platen roller 15 rotates in the direction of arrow 101, the recording medium 14 wound around the platen roller 15 is transported in the direction of arrow 102. The platen roller 15 aligns the desired recording start position with the position of the coating means 10 and temporarily stops the conveyance. Further, the lead screw 17 is rotated, and the transfer table 16 is moved to the home position 10.
Move to step 5 to start recording.

Recording is performed as follows. The recording signal 51 is input to the coating means 10 and the delay means 11. The coating means 10 coats the recording medium with a coating material according to the recording signal 51. Accordingly, the lead screw 17 rotates, and the carrier 16 moves on the lead screw 17 and the guide rail 18 in the main scanning direction indicated by the arrow 104. Thus, the coating means 10 coats the recording medium with the coating material while moving in the main scanning direction indicated by the arrow 104. In addition, the delay means 11 outputs the recording signal 5
1 is delayed by one line, and the delayed signal is a delayed signal 52. The delay means 11 has the configuration shown in FIG. 7, in which one of the two line buffers is used for storing the recording signal 51 and the other is used for outputting the delay signal 52. Switching between the storage and reading modes of the line buffer is controlled by a read / write signal 61. Then, the delayed signal 52 is input to the recording unit 12. The recording unit 12 discharges recording ink in response to the delay signal 52 and forms an image on the coating material on the recording medium 14.

The above-mentioned recording operation will be described in more detail by taking as an example the case of recording the letter T in FIG.
The coating means 10 exists at a position where the first row can be coated, and a recording signal 51 is input to the coating means 10 and the recording means 12. However, since the first row is an area where recording is not performed, the recording signal 51 is always LOW, and the coating means 10 does not perform coating. Also, delay means 1
1 is a read / write signal 61
Is written to the selected line buffer 30.
The address 60 generated at the time of writing is initialized each time the carrier 16 returns to the home position 105, and is counted up each time the carrier 106 moves by one pixel in the main scanning direction. With this operation, the recording signal 51 for one line is stored in the line buffer 30, and the first scanning is completed. By rotating the lead screw 17 in the opposite direction to that for recording, the carriage 16 is moved to the home position 105. Further, the platen roller 15 is rotated in the direction of arrow 101, and the recording medium 14 wound around the platen roller 15 is conveyed by one line in the direction of arrow 102 to prepare for the next recording start.

The recording means 12 is located at a position where the coating means 10 can coat the second line, and the recording means 12 can be located at a position where the first line can be stored. The recording signal 51 is for recording pixels in the second to seventh columns and is input to the coating means 10 and the delay means 11. The coating means 10 coats a coating material at a position corresponding to the pixels in the second to seventh columns according to the recording signal 51. The line buffer 31 selected for writing by the read / write signal 61 stores the recording signal 51 according to the address 60. On the other hand, the line buffer 30 selected for reading
Outputs a delay signal 52 according to the address 60. The delay signal 52 is input to the recording means 12. The recording unit 12 ejects the storage ink in response to the delay signal 52, but all the LOWs are stored in the line buffer 30 in the scanning of the previous line.
Is written, and no pulse is output. Therefore,
The recording means 12 does not eject ink. As described above, the second scanning is completed, the lead screw 17 is rotated in the opposite direction to that during recording, and the transport table 16 is moved to the home position 105. Further, the platen roller 15 is rotated in the direction of arrow 101 to transport the recording medium 14 wound around the platen roller 15 by one line in the direction of arrow 102,
Prepare for the start of the next recording.

The recording means 12 is located at a position where the coating means 10 can coat the third row, and the recording means 12 is located at a position where the second row can be stored. The recording signal 51 is generated by applying a pulse to the coating means 10 and the delay means 1 so as to record the pixels in the second to seventh columns.
Enter 1 The coating means 10 coats a coating material at a position corresponding to the pixels in the second to seventh columns according to the recording signal 51. The line buffer 3 selected for writing by the read / write signal 61
0 stores the recording signal 51 according to the address 60. On the other hand, the line buffer 31 selected for reading outputs the delay signal 52 according to the address 60. Delay signal 52
Is input to the recording means 12. The recording unit 12 ejects the storage ink in response to the delay signal, and stores data in the line buffer 31 so that recording is performed at positions corresponding to the pixels in the second to seventh columns in the scanning in the previous line. Is stored, the recording means 12 ejects ink to the positions corresponding to the pixels in the second to seventh columns. Therefore, it is possible to perform recording with the recording ink on the pixels that have been coated in the scanning in the previous line. From the above,
The third scan ends. Rotate the lead screw 17 in the opposite direction to that for recording, and move the carriage 16 to the home position 1.
Go to 05. Further, the platen roller 15 is moved
The recording medium 14 wound around the platen roller 15 is conveyed by one line in the direction of the arrow 102 by rotating the recording medium 14 in the direction of 1 to prepare for the next recording start.

By repeating the above operation, a recording material is coated on a recording medium as shown in FIG. 3, and further recording can be performed on the recording medium with the recording ink. Accordingly, high-quality recording can be realized without being limited to the type of the recording medium. Note that the second example can also support bidirectional recording in the direction of arrow 104 and the opposite direction, and enables high-speed printing.

The delay means 11 can cope with a delay of an arbitrary number of lines depending on a memory capacity and a method of generating an address. ( Third example ) A third example of the ink jet recording apparatus is shown in FIGS.
A description will be given based on FIGS. 8 and 9.

FIG. 8 is a structural block diagram of a third example of the ink jet recording apparatus . FIG. 6 is a schematic diagram of an ink jet recording apparatus according to a third example . FIG. 3 is an explanatory diagram illustrating the relationship between the coating area and the recording area according to the third example . FIG. 7 is a configuration diagram showing the configuration of the delay means. FIG. 9 is a configuration diagram showing the configuration of the determination means. In each drawing, the same portions are denoted by the same reference numerals.

In FIG. 8, reference numeral 13 denotes a discriminating means, which judges whether or not to perform coating, and outputs the result as a discrimination signal 53. Reference numeral 10 denotes a coating unit that coats a coating material on a recording medium in accordance with the determination signal 53. The coating means 10 can use various ink jet recording heads such as an ink jet recording head using the vibration force of a piezoelectric element and a bubble jet head using film boiling. In the third example , an on-demand type ink jet recording head is particularly used. Was used. Reference numeral 11 denotes a delay unit, which is composed of a FIFO, a RAM, a latch, or the like. The delay unit 11 temporarily stores the input data and outputs the data as needed. Reference numeral 12 denotes a recording unit, which is a known inkjet recording head. FIG. 6 has already been described.

The coating means 10 is ahead of the recording means 12 by one line in the sub-scanning direction indicated by the arrow 107. In this case, the delay unit 11 can be realized by the configuration shown in FIG. In the case of the third example , the configuration shown in FIG. 7 is the same as that of the second example , except for the capacity of the line buffer, the read / write signal 61 and the address 60.
The second example is different from the second example in several points such as how to give

Next, the operation of the third example will be described. As the platen roller 15 rotates in the direction of arrow 101, the recording medium 14 wound around the platen roller 15 is transported in the direction of arrow 102. The platen roller 15 adjusts the desired recording start position one line before the position of the coating means 10 and temporarily stops the conveyance. In addition, the lead screw 17 is rotated to move the carriage 16 to the home position 105 to prepare for the start of recording.

Recording is performed as follows. The recording signal 51 is input to the determination means 13 and the delay means 11. Determination means 13
Will be described with reference to FIG. The recording signal 51 is input to a C terminal of a flip-flop (hereinafter abbreviated as FF) 32. The FF 32 is initialized by the line signal 62 in advance, and sets the output of the Q terminal to LOW. Line signal 62
Represents one pulse output per line, and indicates the effective range of the recording signal 51 for one line in a HIGH state. While the line signal 62 is HIGH, the recording signal 51 is regarded as valid. When the line signal 62 becomes LOW, the FF 32 is initialized. Since the D terminal of the FF 32 is fixed to HIGH, Q rises at the rising edge of the clock of the recording signal 51.
The terminal becomes HIGH. The state of the Q terminal is line signal 62
Are stored until LOW. Q terminal of FF32 is F
The FF 33 is connected to the D terminal of the F33, and outputs the state of the D terminal at the fall of the line signal 62 of the C terminal to the Q terminal.

The Q terminal of the FF 33 is connected to the D terminal of the FF 34, and the FF 34 is connected to the line signal 6 of the C terminal.
The state of the D terminal at the rise of 2 is output to the Q terminal.
The Q terminal of the FF 34 is connected to the AND 35 together with the drive clock 63.
, And AND 35 determines the logical product of the two and outputs a determination signal 53
Output as The drive clock 63 is composed of pulses that can be recorded on all pixels in one line. As described above, the discriminating means 13 generates and outputs the discrimination signal 53 in accordance with the recording signal 51. If at least one pixel to be recorded exists in one line, the discriminating means 13 coats the entire line. Next, the coating means 10 is controlled. Therefore, the recording signal 5
For one, the determination signal 53 is delayed by one line.

The coating means 10 coats the recording medium with a coating material in accordance with the discrimination signal 53. Accordingly, the lead screw 17 rotates, and the carrier 16 moves on the lead screw 17 and the guide rail 18 by an arrow 10.
4 in the main scanning direction. FIG. 7 shows the operation of the delay means 11.
This will be described with reference to FIG.

The delay means 11 delays the recording signal 51 by two lines, toggles a line buffer having a capacity of at least two lines, and uses one for storing the recording signal 51 and one for outputting the delay signal. Used. The toggle is performed once every two lines, and the toggle is controlled by the read / write signal 61. The address 60 used for writing and reading is initialized once every two lines in the third example every time the mode changes from writing to reading or from reading to writing. In each mode, the address 60 is synchronized with the driving clock 63. Counted up. With the above operation, the recording signal 51 is delayed by two lines, and is input to the recording unit 12 as the delay signal 52.

The recording means 12 discharges recording ink in response to the delay signal 52 to form an image on the coating material on the recording medium 14. The above-described recording operation will be described in more detail by taking as an example the case of recording the letter T in FIG. It is also assumed that one cell in FIG. 3 corresponds to a pixel which is a minimum unit of recording.

The recording signal 51 is transmitted to the discrimination means 13 and the delay means 1
1 is input. On the other hand, the presence / absence of a pixel to be stored is determined by the determination unit 13. In this case, since the first row is an area where recording is not performed, the recording signal 51 is always LOW and no pulse is input, and the discrimination signal 53 is LOW. The other is stored in the line buffer 30 selected for writing by the read / write signal 61. After the processing corresponding to one line is completed, the platen roller 15
And transports the recording medium 14 wound around the platen roller 15 by one line in the direction of arrow 102.

Although the coating means 10 is at a position where the first row can be coated, the coating means 10 does not perform the coating in accordance with the discrimination signal 53. The recording signal 51 corresponding to the second row inputs a pulse to the discriminating means 13 and the delaying means 11 so as to record the pixels in the second to seventh columns. The discriminating means 13 recognizes the existence of the pixel to be recorded and sets the discrimination signal 53 to HIGH. The delay unit 11 stores the storage signal 51 in the line buffer 30 selected for writing by the read / write signal 61. The address 60 at the time of storage is counted up following the address of the previous line. After the processing corresponding to one line is completed, the lead screw 17 is rotated in the opposite direction to that for recording, the transport table 16 is moved to the home position 105, and the platen roller 15 is moved.
Is rotated in the direction of arrow 101, and the recording medium 14 wound around the platen roller 15 is moved one direction in the direction of arrow 102.
Convey by the line.

The coating means 10 is at a position where the second line can be coated, and the recording means is at a position where the first line can be recorded. The coating means 10 performs coating on all pixels in the second row according to the determination signal 53. The recording signal 51 corresponding to the third row inputs a pulse to the discriminating means 13 and the delay means 11 so as to record the pixels in the second to seventh columns. The discriminating means 13 recognizes the existence of the pixel to be recorded and sets the discrimination signal 53 to HIGH. Delay means 11
Stores the storage signal 51 in the line buffer 31 selected for writing by the read / write signal 61. The address 60 at the time of storage is initialized with the switching of the read / write signal 61, and is counted up from the initial value. Further, the line buffer 30 selected for reading by the read / write signal 61 outputs the delay signal 52 according to the address 60. The recording means 12 outputs the delay signal 5
2 and recording is performed, but recording is not performed because the delay signal 52 does not generate a pulse. After the processing corresponding to one line described above is completed, the lead screw 17 is rotated in the opposite direction to that for recording, the carriage 16 is moved to the home position 105, the platen roller 15 is rotated in the direction of arrow 101, and the platen roller 15 is rotated. Recording medium 1 wound around
4 is conveyed by one line in the direction of arrow 102.

The position of the coating means 10 is a position where the third line can be coated, and the position of the recording means is a position where the recording can be performed on the second line. The coating means 10 performs coating on all pixels in the third row according to the determination signal 53. The recording signal 51 corresponding to the fourth row inputs a pulse to the discriminating means 13 and the delaying means 11 so as to record the pixels in the fourth to fifth columns. The discriminating means 13 recognizes the existence of the pixel to be recorded and sets the discrimination signal 53 to HIGH. Delay means 11
Stores the storage signal 51 in the line buffer 31 selected for writing by the read / write signal 61.

Further, the line buffer 30 selected for reading by the read / write signal 61 stores the address 6
The delay signal 52 is output according to 0. The recording unit 12 receives the delay signal 52, and performs recording by discharging recording ink to the pixels in the second to seventh columns. Therefore, it is possible to perform recording with the recording ink on the pixels that have been coated in the scanning in the previous line. After the processing corresponding to one line described above is completed, the lead screw 17 is rotated in the opposite direction to that for recording, the carriage 16 is moved to the home position 105, the platen roller 15 is rotated in the direction of arrow 101, and the platen roller 15 is rotated. Recording medium 1 wound around
4 is conveyed by one line in the direction of arrow 102.

By repeating the above operation, a recording material is coated on the recording medium, and recording with the recording ink can be performed on the coating material. Accordingly, high-quality recording can be realized without being limited to the type of the recording medium. Further, in the third example , an on-demand type ink jet recording head is used as the coating means, but the invention is not limited to this. For example, a continuous ink jet recording head, a spray method in which pressure is applied by air or gas, and a coating method, and a method in which a coating material is absorbed by a sponge or a roller and a recording surface is brought into contact with a recording medium to perform coating, are also coating means. Can be used as

Further, by changing the discriminating method of the discriminating means 13, it is possible to easily provide a coating area in which the peripheral pixels of the character or picture to be recorded are coated as shown in FIG. ( Fourth Example ) A fourth example of the ink jet recording apparatus will be described with reference to FIGS. 10, 11 and 12. FIG.

FIG. 10 is a block diagram showing the configuration of a fourth example of the ink jet recording apparatus . FIG. 11 is a schematic view of an ink jet recording apparatus according to a fourth example . FIG. 12 is a timing chart showing the operation of the determination means and the delay means. In each drawing, the same portions are denoted by the same reference numerals. In FIG. 10, reference numeral 13 denotes a determination unit which determines whether or not to perform coating based on a Y (yellow) signal 70, an M (magenta) signal 71, and a C (cyan) signal 72, and outputs the result as a determination signal 53. I do. Reference numeral 10 denotes a coating unit that coats a coating material on a recording medium in accordance with the determination signal 53. The coating means 10 can use various ink jet recording heads such as an ink jet recording head using the vibration force of a piezoelectric element and a bubble jet head using film boiling. In the fourth example , an on-demand type ink jet recording head is used. Using. 11 is a delay means,
It consists of a FIFO, a RAM or a latch. Delay means 1
Numeral 1 temporarily stores input data and outputs the data as necessary. Reference numeral 12 denotes a recording unit, which is a known inkjet recording head.

In FIG. 11, reference numeral 40 denotes a Y head, which is a known ink jet recording head for ejecting yellow ink as recording ink, and 41, a known ink jet recording head which ejects magenta ink as recording ink. An M head 42 is a C head, which is a known inkjet recording head that ejects cyan ink as recording ink, and 40, 41, and 42 correspond to the recording unit 12.

The coating means 10 is ahead of the Y head 40 by one dot in the main scanning direction indicated by the arrow 104. Similarly, the Y head 40 is equivalent to the M head 41 by one dot in the main scanning direction indicated by the arrow 104, and the C head 4
2 ahead of 2 by a distance of 2 dots in the main scanning direction indicated by the arrow 104.

The operation of the determining means 13 and the delay means 11 will be described below. The Y signal 70, the M signal 71, and the C signal 72 are shown in FIG. 1 in consideration of the fact that the positions of the Y head 40, the M head 41, and the C head 42 are arranged at one dot intervals.
2, the data is transferred in synchronization with the driving clock 63. The drive clock 63 is also synchronized with the movement of the carriage, and moves one dot in the main scanning direction indicated by an arrow 104 by one clock. The Y signal Y1 of the first pixel is generated together with the driving clock 63, and the Y signal Y of the second pixel is generated together with the next clock.
The M signal M1 of the second pixel and the first pixel, the Y signal Y3 of the third pixel, the M signal M2 of the second pixel, and the C signal C1 of the first pixel along with the next clock are sequentially sent to the determination means 13 and the delay means 11. Is entered. Similarly, while the subsequent signals are signals for recording the same pixel, the determination means 13 is delayed by one clock.
Is input to the delay means 11.

The discriminating means is a Y signal 70 constituting the same pixel.
If at least one pulse for recording is included in the three signals of the M signal 71 and the C signal 72, the determination signal 53
Is output. For example, at least one of three signals of the Y signal Y1, the M signal M1, and the C signal C1 constituting the first pixel is included.
If one or more recording pulses are included, the determination signal H1
Is input to the coating means 10, and the coating means 10 coats the coating material on the recording medium according to the determination signal H1.

The delay means 11 adjusts the operation timing of the coating means 10 and the recording means 12. Since the discrimination signal H1 is output three pulses later than the Y signal Y1 by the drive clock 63, the delay means 11 delays the Y signal H1 by four pulses by the drive clock 63 and outputs the Yout signal y1.
Generate Similarly, a Mout signal m1 and a Cout signal c1 are generated by delaying the M signal M1 and the C signal C1 by four pulses with the drive clock 63. The Yout signal 73 is sent to the Y head 40, the Mout signal 74 is sent to the M head 41,
The out signal 75 is input to the C head 42.

Next, the operation of the fourth example will be described. As the platen roller 15 rotates in the direction of arrow 101, the recording medium 14 wound around the platen roller 15 is transported in the direction of arrow 102. The platen roller 15 aligns the desired recording start position with the position of the coating means 10 and temporarily stops the conveyance. Further, the lead screw 17 is rotated, and the transfer table 16 is moved to the home position 10.
Move to step 5 to start recording.

Recording is performed as follows. As shown in FIG. 12, the Y signal 70, the M signal 71, and the C signal 72 are transferred in synchronization with the driving clock 63, and are input to the determination unit 13 and the delay unit 11. In addition, the lead screw 17 rotates in synchronization with the drive clock 63, and the carriage 16 moves in the main scanning direction indicated by the arrow 104 at intervals of one dot.

The determination means 13 determines whether or not the pixel is a pixel to be recorded based on the Y signal 70, the M signal 71 and the C signal 72 constituting the same pixel, and outputs a determination signal 53 to the coating means 10. The coating means 10 coats the recording material on the recording medium according to the determination signal 53. The delay means 11 considers the displacement of the position of the coating means 10 and the recording means 12 and takes the Y signal 70, the M signal 71 and the C signal 72 delayed by four pulses by the driving clock 63 and the Yout signal 73 and the Mo signal.
An out signal 74 and a Cout signal 75 are generated. Yout
The signal 73 is input to the Y head 40, the Mout signal 74 is input to the M head 41, the Cout signal 75 is input to the C head 42, and each head discharges recording ink onto the coating material coated by the coating means 10 to perform recording. I do.

By repeating the above operations, a recording material is coated on the recording medium, and recording with the recording ink can be performed on the coating material. Accordingly, high-quality recording can be realized without being limited to the type of the recording medium. ( Fifth Example ) A fifth example of the ink jet recording apparatus will be described with reference to FIGS. 10, 13, and 14. FIG.

FIG. 10 is a structural block diagram of a fifth example of the ink jet recording apparatus . FIG. 13 is a schematic diagram of an ink jet recording apparatus according to a fifth example . FIG. 14 is a timing chart showing the operation of the determination means and the delay means. In each drawing, the same portions are denoted by the same reference numerals. FIG. 10 is as described above. However, the timing at which the Y signal 70, the M signal 71, and the C signal 72 are sent to the delay unit 11 and the determination unit 13 is different from the fourth example . Therefore,
The output timings of the Yout signal 73, the Mout signal 74 and the Cout signal 75 are different from those of the fourth example .

In FIG. 13, reference numeral 40 denotes a known ink jet recording head for ejecting yellow ink as a recording ink, and reference numeral 41 denotes a known ink jet recording head for ejecting magenta ink as a recording ink. An M head 42 is a C head, which is a known inkjet recording head that ejects cyan ink as recording ink, and 40, 41, and 42 correspond to the recording unit 12.

The coating means 10 is ahead of the Y head 40 by a distance of one line in the sub-scanning direction indicated by the arrow 107. Similarly, the Y head 40 is one line longer than the M head 41 in the sub-scanning
2 is advanced by 2 lines in the sub-scanning direction indicated by the arrow 107. For the main scanning direction, the Y head 4
0, M head 41 and C head 42 are also at the same position.
For example, recording is performed by the Y head 40, the recording medium 14 is moved by one line in the sub-scanning direction indicated by the arrow 102, and
When printing is performed by the M head 41, magenta ink can be printed on yellow ink, and red printing can be performed. Hereinafter, the operation of the determination unit 13 and the delay unit 11 will be described.

The Y signal 70, the M signal 71, and the C signal 72
Considering that the positions of the head 40, the M head 41, and the C head 42 are arranged at one line interval, as shown in FIG. You. The drive clock 63 is also synchronized with the movement of the carriage, and moves one dot in the main scanning direction indicated by an arrow 104 by one clock. The line signal indicates the effective range of the Y signal 70, the M signal 71, and the C signal 72 in line units.

The discriminating means 13 outputs a discrimination signal 53 if at least one pulse for recording is included in the three signals of the Y signal 70, the M signal 71 and the C signal 72 constituting the same pixel. I do. For example, the Y signal Y constituting the first pixel
If at least one or more recording pulses are included in the three signals M11, M11 and C11, the discrimination signal H11 is output to the coating means 10 and the coating means 1
0 coats the coating material on the recording medium in accordance with the determination signal H11. In order to execute the above operation, the discriminating means 13 has a buffer for two lines for the Y signal 70 and a buffer for one line for the M signal 71, and has a two-line delayed Y signal and one line. Delayed M
The logical sum of the signal and the C signal 72 is obtained, and a determination signal 53 is output. These can be easily configured by known means.

The delay means 11 adjusts the operation timing of the coating means 10 and the recording means 12. Since the discrimination signal H11 is output two pulses later than the Y signal Y11 as a line signal, the delay means 11 generates a Yout signal Yo11 which is three pulses later than the Y signal Y11 as a line signal. Similarly, a Mout signal Mo11 and a Cout signal Co11 are generated by delaying the M signal M11 and the C signal C11 by three pulses with a line signal. The Yout signal 73 is sent to the Y head 40, the Mout signal 74 is sent to the M head 41,
The Cout signal 75 is input to the C head 42. In order to execute the above operation, the delay means 11 has buffers for three lines for each of the Y signal 70, the M signal 71, and the C signal 72, and these can be easily configured by known means.

Next, the operation of the fifth example will be described. As the platen roller 15 rotates in the direction of arrow 101, the recording medium 14 wound around the platen roller 15 is transported in the direction of arrow 102. The platen roller 15 aligns the desired recording start position with the position of the coating means 10 and temporarily stops the conveyance. Further, the lead screw 17 is rotated, and the transfer table 16 is moved to the home position 10.
Move to step 5 to start recording.

The recording is performed as follows. As shown in FIG. 14, the Y signal 70, the M signal 71, and the C signal 72 are input to the determination unit 13 and the delay unit 11 in synchronization with the driving clock 63. In addition, the lead screw 17 rotates in synchronization with the drive clock 63, and the carriage 16 moves in the main scanning direction indicated by the arrow 104 at intervals of one dot.

The determination means 13 determines whether or not the pixel is a pixel to be recorded, based on the Y signal 70, the M signal 71 and the C signal 72 constituting the same pixel, and outputs a determination signal 53 to the coating means 10. The coating means 10 coats the recording material on the recording medium according to the determination signal 53. The delay unit 11 considers the position shift between the coating unit 10 and the recording unit 12 and takes into account the Yout signal 73, the Mout signal 74, and the Cout signal 75, which are three pulses delayed from the Y signal 70, the M signal 71, and the C signal 72 by the line signal. Generate. Yout signal 7
3 is for the Y head 40, and the Mout signal 74 is for the M head 41.
Then, the Cout signal 75 is input to the C head 42, and each head performs recording by discharging recording ink onto the coating material coated by the coating means 10.

By repeating the above operations, a recording material is coated on the recording medium, and recording with the recording ink can be performed on the coating material. Accordingly, high-quality recording can be realized without being limited to the type of the recording medium.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 10, 13, 15, and 16. FIG.

FIG. 10 is a block diagram showing the arrangement of an ink jet recording apparatus .
It is a lock figure. FIG. 13 is a schematic diagram of an ink jet recording apparatus. FIG. 15 is a timing chart showing the operation of the determination means and the delay means. FIG. 16 is an explanatory diagram showing the relationship between the coating material on the recording material and the ink. In each drawing, the same portions are denoted by the same reference numerals.

FIG. 10 is as described above.
However, in the present embodiment, the determination signal 53 is different from the fifth example described above .
And Yout signal 73, Mout signal 74 and Cout
The output timing of the signal 75 is different. FIG. 13 is also as described in the fifth example . However, this is different from the fifth example in that the resolution of the coating means 10 is set to one half of the resolution of the Y head 40, the M head 41, and the C head 42. For example, while the resolution of the Y head 40, the M head 41, and the C head 42 is 300 DPI (DPI: dot / inch), the resolution of the coating means 10 is 150 DPI.
PI.

The operation of the discriminating means 13 and the delay means 11 will be described below. The Y signal 70, the M signal 71, and the C signal 72 are shown in FIG. 1 in consideration of the fact that the positions of the Y head 40, the M head 41, and the C head 42 are arranged at one-line intervals.
As shown in FIG. 5, the signal is inputted to the determination means 13 and the delay means 11 in synchronization with the driving clock 63. The drive clock 63 is also synchronized with the movement of the carriage, and moves one dot in the main scanning direction indicated by an arrow 104 by one clock. Also,
The line signal indicates the effective range of the Y signal 70, the M signal 71, and the C signal 72 in line units.

The discriminating means 13 outputs a discriminating signal if at least one pulse for recording is included in a total of six signals of the Y signal 70, the M signal 71, and the C signal 72 constituting two adjacent pixels. 53 is output. For example, the Y signal Y11, M signal M11, C signal C11,
If at least one or more recording pulses are included in the six signals of the Y signal Y12, the M signal M12, and the C signal C12 constituting the pixel, the determination signal H112 is output to the coating means 10 and the coating means is output. 10 coats the coating material on the recording medium according to the determination signal H112. Similarly, a Y signal Y13, an M signal M13, and a C signal C13 that form the third pixel, and a Y signal Y1 that forms the fourth pixel
If at least one or more recording pulses are included in the six signals M4, M14 and C14, the discrimination signal H134 is output to the coating means 10 and the coating means 1 is output.
0 coats the recording material on the recording medium in accordance with the determination signal H134.

In order to execute the above operation, the judgment means 13
Is a three-line buffer for the Y signal 70, a two-line buffer for the M signal 71, a one-line buffer for the C signal 72, and a three-line delayed Y signal; The logical sum of the M signal delayed by two lines and the C signal delayed by one line is obtained, and a determination signal 53 is output. These can be easily configured by known means.

The delay means 11 adjusts the operation timing of the coating means 10 and the recording means 12. Since the determination signal H112 is output three pulses later than the Y signal Y11 as a line signal, the delay means 11 outputs the Y signal Y11.
Signal Yo11 which is delayed by 4 pulses with the line signal
Generate Similarly, the M signal M11 and the C signal C11
Signal Mo11 which is delayed by four pulses with the line signal
And a Cout signal Co11 not shown. You
The t signal 73 is input to the Y head 40, the Mout signal 74 is input to the M head 41, and the Cout signal 75 is input to the C head 42. In order to execute the above operation, the delay means 11 has buffers for four lines for each of the Y signal 70, the M signal 71 and the C signal 72, and these can be easily configured by known means.

Next, the operation of this embodiment will be described.
As the platen roller 15 rotates in the direction of arrow 101, the recording medium 14 wound around the platen roller 15 is transported in the direction of arrow 102. The platen roller 15 aligns the desired recording start position with the position of the coating means 10 and temporarily stops the conveyance. In addition, the lead screw 17 is rotated, and the carriage 16 is moved to the home position 1.
05 to prepare for the start of recording.

The recording is performed as follows. As shown in FIG. 15, the Y signal 70, the M signal 71, and the C signal 72 are input to the determination unit 13 and the delay unit 11 in synchronization with the driving clock 63. In addition, the lead screw 17 rotates in synchronization with the drive clock 63, and the carriage 16 moves in the main scanning direction indicated by the arrow 104 at intervals of one dot.

The discriminating means 13 judges whether or not the pixel is a pixel to be recorded from the Y signal 70, the M signal 71 and the C signal 72 constituting two adjacent pixels, and outputs a discriminating signal 53 to the coating means 10. I do. The coating means 10 coats the recording material on the recording medium according to the determination signal 53. The delay means 11 considers the displacement of the position of the coating means 10 and the recording means 12 and considers a Yout signal 73 obtained by delaying the Y signal 70, the M signal 71 and the C signal 72 by four pulses with a line signal.
, A Mout signal 74 and a Cout signal 75. Y
The out signal 73 is input to the Y head 40, the Mout signal 74 is input to the M head 41, the Cout signal 75 is input to the C head 42, and each head ejects recording ink onto the coating material coated by the coating means 10. Make a record.

As described above, in this embodiment, the coating means 1
Since the resolution of 0 is one half of the resolution of the ink jet recording head which is the recording means 12, two pixels adjacent to each other can be coated by one coating. Therefore, by repeatedly performing the above operation, at least one of the pixels 82 and 83 as shown in FIG.
If one is a pixel to be printed, a coating area 81 in units of two pixels can be provided, and a dyed area 80 using the printing ink can be provided thereon. FIG. 16 is an example, and the present invention is not limited to this example. For example, the present invention can be easily applied to a case where at least one of two pixels adjacent in the sub-scanning direction performs printing. Further, the resolution of the coating means is set to ４ of the resolution of the recording head, and when recording is performed on at least one of four pixels adjacent in each of the main scanning direction and the sub-scanning direction, an area of four pixels is coated. Is also possible from the present invention.

[0078]

The apparent the present invention from the above description ejecting recording ink according to recording signals, an ink jet recording apparatus for recording an image on a recording medium, the in response to the recording signal Before the recording with the recording ink is performed on the recording medium, coating means for coating the recording medium with a coating material, delay means for delaying the recording signal, and recording according to the output signal of the delay means Recording means for performing
Whether the recording material is coated or not
And outputs the result of the determination to the coating means.
Discriminating means, and the resolution of the coating means is recorded
Is the value obtained by multiplying the resolution of the
Multiple images adjacent to each other in the main scanning direction and sub-scanning direction
When printing on at least one of the elements,
Configure to coat the area . In addition, the present invention
In, the recording ink is ejected according to the recording signal,
With an inkjet recording device that records an image on a recording medium
Yes, recording with recording ink is performed on the recording medium.
Before recording on the recording medium in response to the recording signal.
Coating means for coating the coating material;
Delay means for delaying a recording signal, and an output of the delay means
It has recording means for recording according to the signal,
The resolution of the recording means is optional to the resolution of the recording head
The value obtained by multiplying the reciprocal of an integer.
At least one of a plurality of pixels adjacent in each direction
Coating multiple pixel areas when recording on
During the coating operation of the inkjet recording apparatus,
Coating the coating material on a recording medium
Whether or not to perform the determination based on the recording signal;
Outputting another result to the coating means.
Coating method. This enables high-quality inkjet recording without being limited by the type of recording medium to be used. Since the area to be coated is determined according to the recording signal, the coating material can be saved. When the recording medium is paper, it is possible to prevent the undulation caused by applying a large amount of the coating material and improve the quality.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of an inkjet recording apparatus.

FIG. 2 is a schematic diagram of a first example of an inkjet recording apparatus.

FIG. 3 is an explanatory diagram illustrating a relationship between a coating area and a recording area in the inkjet recording apparatus.

FIG. 4 is a timing chart for explaining a temporal relationship between a coating area and a recording area in the ink jet recording apparatus used in the first example .

FIG. 5 is a configuration diagram of a delay unit in the ink jet recording apparatus used in the first example .

FIG. 6 is a schematic diagram of a second example of the ink jet recording apparatus.

FIG. 7 is a configuration diagram of a delay unit in the ink jet recording apparatus used in the second example .

FIG. 8 is a block diagram illustrating another configuration of the inkjet recording apparatus.

FIG. 9 is a block diagram illustrating a configuration of a determination unit in a third example of the inkjet recording apparatus.

FIG. 10 is a block diagram illustrating another configuration of the inkjet recording apparatus.

FIG. 11 is a schematic view of a fourth example of an ink jet recording apparatus.

FIG. 12 is a timing chart illustrating the operation of a determination unit and a delay unit in the inkjet recording apparatus used in the fourth example .

FIG. 13 is a schematic view of a fifth example of the ink jet recording apparatus.

FIG. 14 is a timing chart showing the operation of the determination means and the delay means in the fifth example of the ink jet recording apparatus.

FIG. 15 is a timing chart showing the operation of the determining means and the delay means in the embodiment of the ink jet recording apparatus of the present invention.

FIG. 16 is an explanatory diagram showing a relationship between a coating material on a recording material and ink in an embodiment of the ink jet recording apparatus of the present invention.

FIG. 17 is an explanatory diagram illustrating a relationship between a coating area and a recording area in a third example of the inkjet recording apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Coating means 11 Delay means 12 Recording means 13 Determination means

Continuation of front page (72) Inventor Hiroshige Ikeno 6-31-1, Kameido, Koto-ku, Tokyo Seiko Electronic Industry Co., Ltd. 92351 (JP, A) JP-A-4-173250 (JP, A) JP-A-61-249755 (JP, A) JP-A-59-133086 (JP, A) JP-A-63-299970 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B41J 2/01

Claims (2)

(57) [Claims] 1. An ink jet recording apparatus which discharges recording ink in accordance with a recording signal and records an image on a recording medium, wherein the recording ink is recorded on the recording medium before the recording is performed by the recording ink. Coating means for coating a coating material on a recording medium according to a recording signal,
Delay means for delaying the recording signal, recording means for performing recording in accordance with an output signal of the delay means, and the recording medium
Whether to coat the coating material on the body
Is determined by the recording signal, and the result of the determination is
And a discriminating means for outputting the preparative means, the resolution of the coating means is a value obtained by multiplying the inverse of any integer resolution of the recording head, the main scanning direction and sub-scanning read
At least one of a plurality of pixels adjacent in each of the inspection directions
When recording on a single
An ink jet recording apparatus characterized by that. 2. A recording ink is ejected according to a recording signal.
And an ink jet recording apparatus for recording an image on a recording medium.
The recording ink is not recorded on the recording medium.
Before the recording is performed on the recording medium in accordance with the recording signal.
Coating means for coating a coating material on
Delay means for delaying the recording signal;
With recording means for recording according to the output signal
The resolution of the coating means is equal to the resolution of the recording head.
Is multiplied by the reciprocal of an arbitrary integer.
At least one of a plurality of pixels adjacent to each other in the sub-scanning direction
When recording in one area, a multi-pixel area is
The coating operation of the inkjet recording device
To, Kotin said coating material onto the recording medium
A step of determining whether or not to perform coating , based on the recording signal , and a step of outputting a result of the determination to the coating means.