JP3667278B2 - Recording apparatus and recording method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording apparatus and a recording method for recording a plurality of types of recording materials on a recording medium using a recording element.
[0002]
The present invention also relates to a recording apparatus, a recording method, and a computer-readable memory for recording a plurality of types of recording agents on a recording medium using a recording head having one or a plurality of recording elements.
[0003]
[Prior art]
Conventionally, for example, recording apparatuses such as inkjet printers have been widely researched and developed, and are widely used. However, there is a continuing demand for higher gradation, higher speed, and lower price.
[0004]
Of these, it is effective to use a recording agent with a low density to meet the demand for higher gradation. However, if a recording agent with a low density is used, a recording with a low density is used to obtain a desired image density. So-called multiple recording, in which a large number of dots of the agent are overlaid at approximately the same position on the recording medium, must be performed. For example, in an ink jet printer, there is a concern about problems such as ink overflow.
[0005]
In particular, in an inkjet printer that records a full-color image using cyan, magenta, yellow, and black inks, it is difficult to reduce the density of all the inks from the above points.
[0006]
In view of this, for a color that is difficult to visually recognize, such as yellow, or a color ink that can be generated by mixing other color inks such as black, a contrivance is made such as not using a thin ink.
[0007]
Then, inevitably, the maximum number of the same color ink dots (hereinafter referred to as the maximum multiplex recording number) superimposed at substantially the same position on the recording medium also differs depending on the ink color (type).
[0008]
[Problems to be solved by the invention]
However, when recording a plurality of types of recording agents having different maximum multiplex recording numbers using the same number of recording elements, the following problems occur.
[0009]
For example, when the number of recording elements for recording each recording agent is the same as the number suitable for recording of a recording agent having a small maximum multiplex recording number, the recording element is used for recording a recording agent having a large maximum multiplex recording number. The recording speed is reduced due to insufficient number.
[0010]
Also, if the number of recording elements for recording each recording agent is the same as the number suitable for recording of a recording agent having a large maximum multiplex recording number, it is completely unused when recording a recording agent having a small maximum multiplex recording number. Alternatively, there is a waste, that is, an increase in cost due to the presence of a recording element having a long unused time.
[0011]
In any case, when a plurality of types of recording agents having different maximum multiplex recording numbers are recorded using the same number of recording elements, one of the above-mentioned two problems occurs. A point existed.
[0012]
The present invention has been made in view of the above-described problems, and prevents both a decrease in recording speed due to an insufficient number of recording elements and an increase in cost due to the existence of recording elements that are completely unused or have a long unused time. It is an object of the present invention to provide a recording apparatus and a recording method that can be used.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, a recording apparatus according to the present invention comprises the following arrangement. That is,
Recording in which the first and second recording agents are recorded on a recording medium with the same resolution by using first and second recording elements corresponding to the first and second recording agents having at least the same color and different densities. A device,
The maximum number of multiple recordings when the first recording agent is superimposed and recorded on the same pixel of the predetermined resolution on the recording medium, and the second recording agent on the same pixel of the predetermined resolution on the recording medium The maximum number of multiplex recordings when recording is overlaid differs,
The ratio of the maximum multiplex recording number of the first recording agent to the maximum multiplex recording number of the second recording agent and the ratio of the number of the first recording elements to the number of the second recording elements are: Are the same.
In order to achieve the above object, a recording apparatus according to the present invention comprises the following arrangement. That is,
A recording device that uses a recording element corresponding to each of a plurality of types of recording agents having different densities in a black color, and records the plurality of types of recording agents having different densities in a black color on a recording medium with the same resolution,
Maximum number of multiplex recordings when some kinds of recording agents of a plurality of types with different densities in the black color are recorded on the same pixel of a predetermined resolution on the recording medium, and others Unlike the maximum number of multiple recordings when the type of recording agent is recorded on the same pixel of a predetermined resolution on the recording medium,
The ratio of the maximum multiplex recording number of the some kind of recording agent to the maximum multiplex recording number of the other type of recording agent and the number of recording elements corresponding to the some kind of recording agent The ratio to the number of recording elements corresponding to this kind of recording agent is the same.
[0014]
In order to achieve the above object, a recording apparatus according to the present invention comprises the following arrangement. That is,
A recording apparatus for recording a plurality of types of recording agents having different densities in black color on a recording medium using a recording head having one or a plurality of recording elements at the same resolution,
Maximum number of multiplex recordings when some kinds of recording agents of a plurality of types with different densities in the black color are recorded on the same pixel of a predetermined resolution on the recording medium, and others Unlike the maximum number of multiple recordings when the type of recording agent is recorded on the same pixel of a predetermined resolution on the recording medium,
The ratio of the maximum multiplex recording number of the some kind of recording agent to the maximum multiplex recording number of the other kind of recording agent and the number of recording heads corresponding to the some kind of recording agent The ratio to the number of recording heads corresponding to this kind of recording agent is the same.
In order to achieve the above object, a recording apparatus according to the present invention comprises the following arrangement. That is,
Recording in which the first and second recording agents are recorded at the same resolution on a recording medium using first and second recording heads corresponding to the first and second recording agents having at least the same color and different densities. A device,
The maximum number of multiple recordings when the first recording agent is superimposed and recorded on the same pixel of the predetermined resolution on the recording medium, and the second recording agent on the same pixel of the predetermined resolution on the recording medium The maximum number of multiplex recordings when recording is overlaid differs,
The ratio of the maximum multiplex recording number of the first recording agent to the maximum multiplex recording number of the second recording agent and the ratio of the number of the first recording heads to the number of the second recording heads are: Are the same.
[0015]
In order to achieve the above object, a recording method according to the present invention comprises the following arrangement. That is,
Recording in which the first and second recording agents are recorded on a recording medium with the same resolution by using first and second recording elements corresponding to the first and second recording agents having at least the same color and different densities. A method,
The maximum number of multiple recordings when the first recording agent is superimposed and recorded on the same pixel of the predetermined resolution on the recording medium, and the second recording agent on the same pixel of the predetermined resolution on the recording medium The maximum number of multiplex recordings when recording is overlaid differs,
The ratio of the maximum multiplex recording number of the first recording agent to the maximum multiplex recording number of the second recording agent and the ratio of the number of the first recording elements to the number of the second recording elements are: Are the same.
[0016]
In addition, a recording method according to the present invention for achieving the above object has the following configuration. That is,
A recording method using a recording element corresponding to each of a plurality of types of recording agents having different densities in a black color and recording a plurality of types of recording agents having different densities in a black color on a recording medium with the same resolution,
Maximum number of multiplex recordings when some kinds of recording agents of a plurality of types with different densities in the black color are recorded on the same pixel of a predetermined resolution on the recording medium, and others Unlike the maximum number of multiple recordings when the type of recording agent is recorded on the same pixel of a predetermined resolution on the recording medium,
The ratio of the maximum multiplex recording number of the some kind of recording agent to the maximum multiplex recording number of the other type of recording agent and the number of recording elements corresponding to the some kind of recording agent The ratio to the number of recording elements corresponding to this kind of recording agent is the same.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
[Embodiment 1]
FIG. 1A is a schematic perspective view of the ink jet printer according to the first embodiment.
[0020]
In FIG. 1A, a recording medium (hereinafter referred to as a medium) M is a sub-scanning motor 1.
Is fed in the direction of the arrow F in the drawing by the platen roller 2 and the conveying roller group (not shown) that rotate in the direction of the arrow R in the drawing.
[0021]
Guide shafts 3a and 3b are placed in a direction perpendicular to the medium conveying direction (sub-scanning direction), and the inkjet head 5 mounted on the carriage 4 is driven by the main scanning motor 6 in the direction indicated by the arrow S in FIG. Reciprocating scanning in the main scanning direction).
[0022]
The medium M is intermittently fed by the sub-scanning motor 1, but when the medium M is stopped, the inkjet head 5 is reciprocated in the main scanning direction, and at that time, ink droplets corresponding to the image signal are ejected. Record an image. The image signal is supplied from an external device (not shown) connected to the inkjet printer, for example, a host computer.
[0023]
As shown in FIG. 1B, the inkjet head 5 is provided with 384 nozzles 100 constituting recording elements arranged so that the interval in the sub-scanning direction (the direction of arrow F in the figure) is 600 dpi. In the figure, in order from the start point of the arrow F, 128 nozzles that discharge cyan (C) ink, 128 nozzles that discharge magenta (M) ink, and 64 nozzles that discharge yellow (Y) ink 64 nozzles eject black (Bk) ink.
[0024]
Each nozzle is provided with a heating element for ejecting ink.
[0025]
The resolution of the inkjet printer according to the first embodiment is 600 dpi (main scanning direction) × 600 dpi (sub-scanning direction), and the diameter of dots formed by ink droplets of each color ink varies depending on the type of media. In one example, it was about 65 μm on the glossy film.
[0026]
The cyan and magenta inks used in the ink jet printer according to the first embodiment are inks having a low dye density to improve gradation, and two dots are provided for all 600 dpi × 600 dpi pixels on the glossy film. The respective dye concentrations are adjusted so that the reflected optical density when the recording is repeated is about 1.7.
[0027]
On the other hand, for yellow and black inks, the dye density is adjusted so that the reflection optical density is about 1.7 when dots are recorded once on all the 600 dpi × 600 dpi pixels on the glossy film.
[0028]
Therefore, in the inkjet printer according to the first embodiment, the maximum multiplex recording number is 2 for cyan and magenta inks, and the maximum multiplex recording number is 1 for yellow and black inks, as shown in FIG. 1C. The control unit 200 performs control.
[0029]
In FIG. 1C, reference numeral 20 denotes an interface for transmitting / receiving data such as an image signal to / from the host apparatus H. Reference numeral 21 denotes an MPU that executes various control procedures and the like. A ROM 22 stores a program corresponding to a control procedure executed by the MPU 21 and other fixed data. Reference numeral 23 denotes a DRAM for temporarily storing various data (such as recording data to be supplied to the inkjet head 5).
[0030]
Reference numeral 24 denotes a gate array that controls supply of recording data to the inkjet head 5, and also performs data transfer control among the interface 20, MPU 21, and DRAM 23. Reference numerals 25 and 26 denote motor drivers for driving the main scanning motor 6 and the sub-scanning motor 1, respectively. Reference numeral 27 denotes a head driver for driving the inkjet head 5.
[0031]
Hereinafter, an image recording sequence of the ink jet printer according to the first embodiment will be briefly described with reference to FIGS. 1 and 2.
[0032]
In FIG. 1A, when the medium M is conveyed to a predetermined image recording start position by rotation of the platen roller 2 and stopped, the carriage 4 performs forward scanning out of reciprocating scanning in the direction of arrow S in FIG. In this case, according to the image signal, 64 nozzles on the start point side (hereinafter referred to as the lower side) of the arrow F in FIG. Dot recording.
[0033]
Next, the medium M is transported (sub-scanned) by the width of the area A shown in FIG. 2A (specifically, 64/600 inch≈2.71 mm) by driving the sub-scanning motor 1.
[0034]
Thereafter, the backward scanning is performed out of the reciprocating scanning of the carriage 4. At that time, in accordance with the image signal, cyan dot recording using the lower 128 nozzles of the inkjet head 5 is added, and a cyan image is formed in the region as shown in FIG. 2B.
[0035]
At this time, in the portion indicated by A in FIG. 2 on the medium M, cyan ink dots can be recorded twice on the same pixel.
[0036]
Thereafter, the medium M is again sub-scanned by 2.71 mm, and cyan and magenta dots are recorded according to the image signal using the lower 192 nozzles of the inkjet head 5 when the carriage 4 is re-scanned again. Thus, an image of the region as shown in FIG. 2C is formed.
[0037]
Further, the medium M is sub-scanned by 2.71 mm, and cyan and magenta dot recording using the lower 256 nozzles of the inkjet head 5 is added according to the image signal when the carriage 4 is re-scanned again. An image of the region as shown in FIG. 2D is formed.
[0038]
At this time, cyan and magenta ink dots can be recorded twice on the same pixel in the portion indicated by A in FIG.
[0039]
Similarly, the medium M is sub-scanned, and cyan, magenta, and yellow dot recording using the lower 320 nozzles of the ink-jet head 5 is added according to the image signal when the carriage 4 is re-scanned again. Thus, an image of the region as shown in FIG. 2E is formed.
[0040]
Thereafter, after the same sub-scanning, during the re-scanning of the carriage 4 again, cyan, magenta, yellow and black dot recordings corresponding to the image signal are added using all 384 nozzles of the inkjet head 5. Thus, an image of the region as shown in FIG. 2F is formed.
[0041]
Thus, in the portion indicated by A in FIG. 2 on the medium M, cyan and magenta ink dots are overlapped twice for the same pixel, and yellow and black ink dots are recorded only once. It becomes possible.
[0042]
The same operation is repeated until the image recording end position of the medium M to complete the image recording, and the medium M is ejected by the rotation of the platen roller 2 or the like.
[0043]
As described above, according to the first embodiment, the number of nozzles that perform cyan and magenta ink recording is reduced to 128 with the dye density reduced and the maximum multiple recording number set to 2 to improve gradation, and the ink overflows. In consideration of the above, etc., the number of nozzles for recording yellow and black ink with the maximum number of multiple recordings set to 1 is set to 64 that is 1/2 of that, and the image recording sequence is executed as described above. By configuring and controlling the ratio of the maximum multiplex recording number and the ratio of the number of recording elements for recording each recording agent, it is possible to perform the most efficient image recording. As a result, it is possible to prevent both a decrease in recording speed due to an insufficient number of nozzles and an increase in cost due to the existence of nozzles that are completely unused or have a long unused time.
[0044]
In other words, in general terms, the recording head according to the present invention is a recording head in which dots of one type of recording agent among a plurality of types of recording agents are overlaid at substantially the same position on a recording medium. A number of recording elements for recording the recording agents corresponding to the maximum multiplex recording number are provided. As a result, it is possible to prevent both a decrease in recording speed due to an insufficient number of recording elements and an increase in cost due to the existence of recording elements that are completely unused or have a long unused time.
[0045]
In the first embodiment, an example of an inkjet printer having a resolution of 600 dpi (main scanning direction) × 600 dpi (sub-scanning direction) has been described, but the ink ejection timing of the inkjet head 5 is controlled for each scan of the carriage 4. Even in an ink jet printer in which the resolution is 1200 dpi (main scanning direction) × 600 dpi (sub-scanning direction) by shifting the position of an ink dot having a diameter of about 65 μm recorded on a glossy film, main scanning is performed. Since dots recorded once in two pixels adjacent in the direction sufficiently overlap each other, the present invention is effective for such an example.
[Embodiment 2]
In the first embodiment, an example in which the present invention is applied to an ink jet printer that records a full-color image using four colors of ink has been described. In the second embodiment, three types of black inks having different dye concentrations are used. An example in which the present invention is applied to an ink jet printer that records a high-gradation medical image will be described.
[0046]
FIG. 3 is a schematic perspective view of the ink jet printer according to the second embodiment.
[0047]
In addition, since what attached | subjected the same number as FIG. 1A has shown the same component, description is abbreviate | omitted.
[0048]
In FIG. 3, reference numerals 51 to 54 denote ink jet heads each provided with 260 nozzles constituting recording elements arranged so that the interval in the sub-scanning direction (arrow F in the figure) is 600 dpi. However, the number of nozzles actually used for recording is 256, and as shown in an example in FIG. 4, other nozzles are mechanically displaced (when the ink jet heads 51 to 54 are mounted on the carriage 4). (Sub-scanning direction) is provided for correcting by selecting nozzles used for recording.
[0049]
Each nozzle is provided with a heating element for ejecting ink.
[0050]
The ink-jet head 51 is an ink-jet head that records the lightest ink (hereinafter referred to as a thin ink) among the three types of black inks having different dye concentrations. The ink jet heads 53 and 54 are ink jet heads that record the darkest ink (hereinafter referred to as dark ink). The inkjet head 52 is an inkjet head that records an intermediate density ink (hereinafter referred to as a medium ink).
[0051]
The resolution of the inkjet printer according to the second embodiment is 600 dpi (main scanning direction) × 600 dpi (sub-scanning direction), similar to the resolution of the inkjet printer according to the first embodiment, and the dots formed by the ink droplets of each ink. The diameter was about 65 μm on the transmissive film in one example.
[0052]
By the way, a high image density is required for medical images, in particular, medical images observed using transmitted light.
[0053]
However, in general, various problems occur when the concentration of the recording agent is increased. For example, in an ink jet printer, when the dye concentration of the ink is increased, there is a problem in ink ejection due to an increase in ink viscosity. Arise.
[0054]
That is, there is a limit to the increase in image density due to the increase in recording agent density.
[0055]
Therefore, in the ink jet printer according to the second embodiment, the maximum number of multiple multiplex recordings of dark ink is set to 2, that is, the dark ink dots are recorded twice at substantially the same position on the medium M, thereby achieving a high image. Perform configuration and control to obtain concentration.
[0056]
On the other hand, the maximum multiplex recording number of medium ink and thin ink used for improving gradation is set to 1 in consideration of ink overflow or the like.
[0057]
The image recording sequence of the ink jet printer according to the second embodiment will be briefly described below with reference to FIGS. 3, 5A and 5B.
[0058]
When the medium M is conveyed and stopped to a predetermined image recording start position by the rotation of the platen roller 2 or the like, the forward scanning is performed out of the reciprocating scanning of the carriage 4, and at this time, the inkjet heads 51 to 54 are selected. Using 256 nozzles, ink dots are recorded according to the image signal in an area indicated by α in FIG. 5A.
[0059]
Due to the recording performed during this one forward scan, the dots of dark ink using the two inkjet heads 53 and 54 can be recorded twice on the same pixel on the medium M, A thin ink or medium ink dot using one ink jet head 51 or 52 can be recorded only once on the same pixel on the medium M.
[0060]
Next, the medium M is transported (sub-scanned) by the width of the recording (specifically, 256/600 inch≈10.8 mm) by driving the sub-scanning motor 1.
[0061]
Thereafter, the backward scanning of the reciprocating scanning of the carriage 4 is performed, and the selected 256 nozzles of the ink jet heads 51 to 54 are used in the region as indicated by β in FIG. Ink dot recording corresponding to the image signal is added.
[0062]
Again, the medium M is sub-scanned by 10.8 m, and thereafter the same operation is repeated to the image recording end position to complete the image recording, and the medium M is discharged by the rotation of the platen roller 2 or the like.
[0063]
As described above, according to the second embodiment, in order to obtain a high image density, two ink jet heads that perform recording of dark ink with a maximum multiplexing recording number of 2 are used, and maximum multiplexing is performed in consideration of ink overflow or the like. The number of recordings is 1, and the number of recording heads is set to one inkjet head that performs recording of the thin ink for improving gradation and the medium ink, and the image recording sequence is executed as described above, that is, the maximum multiplex recording number of each recording agent And the ratio of the number of recording heads for recording each recording agent (the number of recording elements actually used for recording in each recording head is the same) to be the same as each other, The most efficient image recording can be performed. As a result, it is possible to prevent both a decrease in recording speed due to an insufficient number of nozzles and an increase in cost due to the existence of nozzles that are completely unused or have a long unused time.
[0064]
In the second embodiment, as in the first embodiment, an example of an ink jet printer having a resolution of 600 dpi (main scanning direction) × 600 dpi (sub scanning direction) has been described. However, the ink ejection timing of each ink jet head is also described. In an ink jet printer that is controlled to shift the position of an ink dot having a diameter of about 65 μm recorded on a transmissive film so that the resolution is 1200 dpi (main scanning direction) × 600 dpi (sub-scanning direction). Since dots recorded once on two pixels adjacent in the scanning direction sufficiently overlap each other, the present invention is effective for such an example.
[0065]
In addition, a known means for adjusting the mechanical position of each inkjet head in the sub-scanning direction with respect to the carriage 4 is provided, and by adjusting the position of each inkjet head in the sub-scanning direction, the position of the ink dot is shifted so that the resolution is Even in an ink jet printer configured to be 1200 dpi (main scanning direction) × 1200 dpi (sub-scanning direction), since the dots recorded once in two adjacent pixels are sufficiently overlapped, the present invention is effective.
[0066]
In the first and second embodiments, an example in which the present invention is applied to a serial scan type ink jet printer in which an ink jet head mounted on a carriage reciprocally scans an intermittently fed medium has been described. The invention is not limited to such an ink jet printer, and FIG. 6 shows a schematic diagram of an example corresponding to the second embodiment, and nozzles are arranged in the entire width direction of the medium so that only the medium is conveyed. The present invention is also effective for a so-called full multi-type ink jet printer.
[0067]
In the first and second embodiments, the maximum multiplex recording number of each ink is 1 or 2, but it may be 3 or more.
[0068]
Further, in the first and second embodiments, the example in which the present invention is applied to an ink jet printer has been described. However, the present invention is not applied only to an ink jet printer, and a plurality of types of recording agents are coated using a recording element. The present invention can be applied to any recording apparatus as long as the recording apparatus records on a recording medium.
[0069]
In addition, the dots recorded by the recording element need not be a circle or a shape close thereto, but may be a shape close to a square.
[0070]
Note that the present invention can be applied to a system (for example, a copier, a facsimile machine, etc.) consisting of a single device even if it is applied to a system composed of a plurality of devices (for example, a host computer, interface device, reader, printer, etc.). You may apply.
[0071]
Another object of the present invention is to supply a storage medium storing software program codes for implementing the functions of the above-described embodiments to a system or apparatus, and the computer (or CPU or MPU) of the system or apparatus stores the storage medium. Needless to say, this can also be achieved by reading and executing the program code stored in the.
[0072]
In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention.
[0073]
As a storage medium for supplying the program code, for example, a floppy disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.
[0074]
Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) operating on the computer based on the instruction of the program code. It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included.
[0075]
Further, after the program code read from the storage medium is written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. It goes without saying that the CPU or the like provided in the board or the function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.
[0076]
【The invention's effect】
As described above, according to the present invention, it is possible to prevent both a decrease in recording speed due to an insufficient number of recording elements and an increase in cost due to the existence of recording elements that are completely unused or have a long unused time. A recording apparatus and method thereof can be provided.
[Brief description of the drawings]
FIG. 1A is a schematic perspective view of an ink jet printer according to a first embodiment.
FIG. 1B is a diagram illustrating an arrangement of nozzles of the inkjet head according to the first exemplary embodiment.
FIG. 1C is a block diagram illustrating a circuit configuration including a control unit according to the first embodiment.
FIG. 2A is a diagram for explaining an image recording sequence in the inkjet printer according to the first embodiment.
FIG. 2B is a diagram for explaining an image recording sequence in the inkjet printer according to the first embodiment.
FIG. 2C is a diagram for explaining an image recording sequence in the inkjet printer according to the first embodiment.
FIG. 2D is a diagram for explaining an image recording sequence in the inkjet printer according to the first embodiment.
FIG. 2E is a diagram for explaining an image recording sequence in the ink jet printer according to the first embodiment.
FIG. 2F is a view for explaining an image recording sequence in the ink jet printer according to the first embodiment.
FIG. 3 is a schematic perspective view of an ink jet printer according to a second embodiment.
FIG. 4 is a diagram illustrating an arrangement of nozzles of an ink jet head according to a second embodiment.
FIG. 5A is a diagram for explaining an image recording sequence in the inkjet printer according to the second embodiment.
FIG. 5B is a diagram for explaining an image recording sequence in the inkjet printer according to the second embodiment.
FIG. 6 is a diagram illustrating an outline of an example of a full multi-type inkjet printer corresponding to the second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Subscanning motor 2 Platen roller 3 Guide shaft 4 Carriage 6 Main scanning motor 5, 51-54 Inkjet head

Claims (9)

Recording in which the first and second recording agents are recorded on a recording medium with the same resolution by using first and second recording elements corresponding to the first and second recording agents having at least the same color and different densities. A device,
The maximum number of multiple recordings when the first recording agent is superimposed and recorded on the same pixel of the predetermined resolution on the recording medium, and the second recording agent on the same pixel of the predetermined resolution on the recording medium The maximum number of multiplex recordings when recording is overlaid differs,
The ratio of the maximum multiplex recording number of the first recording agent to the maximum multiplex recording number of the second recording agent and the ratio of the number of the first recording elements to the number of the second recording elements are: Recording device characterized by being identical. A recording device that uses a recording element corresponding to each of a plurality of types of recording agents having different densities in a black color, and records the plurality of types of recording agents having different densities in a black color on a recording medium with the same resolution,
Maximum number of multiplex recordings when some kinds of recording agents of a plurality of types with different densities in the black color are recorded on the same pixel of a predetermined resolution on the recording medium, and others Unlike the maximum number of multiple recordings when the type of recording agent is recorded on the same pixel of a predetermined resolution on the recording medium,
The ratio of the maximum multiplex recording number of the some kind of recording agent to the maximum multiplex recording number of the other type of recording agent and the number of recording elements corresponding to the some kind of recording agent The ratio of the number of recording elements corresponding to the kind of recording agent to the number of recording agents is the same. A recording apparatus for recording a plurality of types of recording agents having different densities in black color on a recording medium using a recording head having one or a plurality of recording elements at the same resolution,
Maximum number of multiplex recordings when some kinds of recording agents of a plurality of types with different densities in the black color are recorded on the same pixel of a predetermined resolution on the recording medium, and others Unlike the maximum number of multiple recordings when the type of recording agent is recorded on the same pixel of a predetermined resolution on the recording medium,
The ratio of the maximum multiplex recording number of the some kind of recording agent to the maximum multiplex recording number of the other kind of recording agent and the number of recording heads corresponding to the some kind of recording agent The ratio of the number of recording heads corresponding to the type of recording agent is the same. The recording apparatus according to claim 3, wherein each recording head that records each recording agent has the same number of recording elements. Recording in which the first and second recording agents are recorded at the same resolution on a recording medium using first and second recording heads corresponding to the first and second recording agents having at least the same color and different densities. A device,
The maximum number of multiple recordings when the first recording agent is superimposed and recorded on the same pixel of the predetermined resolution on the recording medium, and the second recording agent on the same pixel of the predetermined resolution on the recording medium The maximum number of multiplex recordings when recording is overlaid differs,
The ratio of the maximum multiplex recording number of the first recording agent to the maximum multiplex recording number of the second recording agent and the ratio of the number of the first recording heads to the number of the second recording heads are: Recording device characterized by being identical. Recording in which the first and second recording agents are recorded on a recording medium with the same resolution by using first and second recording elements corresponding to the first and second recording agents having at least the same color and different densities. A method,
The maximum number of multiple recordings when the first recording agent is superimposed and recorded on the same pixel of the predetermined resolution on the recording medium, and the second recording agent on the same pixel of the predetermined resolution on the recording medium The maximum number of multiplex recordings when recording is overlaid differs,
The ratio of the maximum multiplex recording number of the first recording agent to the maximum multiplex recording number of the second recording agent and the ratio of the number of the first recording elements to the number of the second recording elements are: A recording method characterized by being identical. A recording method using a recording element corresponding to each of a plurality of types of recording agents having different densities in a black color and recording a plurality of types of recording agents having different densities in a black color on a recording medium with the same resolution,
Maximum number of multiplex recordings when some kinds of recording agents of a plurality of types with different densities in the black color are recorded on the same pixel of a predetermined resolution on the recording medium, and others Unlike the maximum number of multiple recordings when the type of recording agent is recorded on the same pixel of a predetermined resolution on the recording medium,
The ratio of the maximum multiplex recording number of the some kind of recording agent to the maximum multiplex recording number of the other type of recording agent and the number of recording elements corresponding to the some kind of recording agent A recording method characterized in that the ratio to the number of recording elements corresponding to the kind of recording agent is the same. The recording apparatus according to claim 1, wherein the recording element is a nozzle for ejecting ink. The recording apparatus according to claim 8, wherein a heating element for discharging ink is provided in the nozzle.

Images