JP2000190477A - Recording apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording apparatus which can speedily inform a user of a state in which a command not conforming to a type of a head is input. SOLUTION: The recording apparatus which can selectively record and read judges which of a recording head 6 and a reading head 7 is set, analyzes whether a transmitted operation command is a command related to a recording operation or a command related to a read operation, judges whether or not the command conforms to the head set at present, and makes a display part 11 or a buzzer 12 as a notifying means carry out a predetermined notification operation if the command does not conform to the head.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus which can selectively perform a recording operation and a reading operation by selectively mounting a recording head and a reading head on a carriage or the like.

[0002]

2. Description of the Related Art Conventionally, in a recording apparatus such as an ink jet printer, a recording head for performing a recording operation on a recording medium such as paper is detached from a carriage or the like, and a solid-state imaging device such as a CCD is used instead of the recording head. There is known a reading head which can be mounted so that not only a recording operation but also a reading operation can be executed.

In this type of printing apparatus, when performing a printing operation, a printing head is mounted on a carriage, and then a printing command and print data are transmitted from a host computer to perform the printing operation. The recording operation is performed by moving the carriage in the main scanning direction and operating the paper feed mechanism to move the paper in the main scanning direction.

On the other hand, when performing a reading operation, a reading head is mounted on a carriage instead of a recording head, and then a reading command is transmitted from a host computer. As a result, the carriage moves in the main scanning direction in the same manner as during recording, and the paper feed mechanism moves the paper in the sub-scanning direction, reads an image written on the paper with the reading head, and reads the optical image information. Is converted into electrical image information and the image information is transmitted to a host computer or the like.

In a recording apparatus having such a reading function, the above-described head replacement is usually performed by a user, and therefore, the replacement is not performed properly.
In some cases, the processing operation requested by the user and the type of the mounted head do not match.In such a case, all the received commands and data are ignored and all the processing operations are not performed. The read command received at the time of mounting is recorded on paper as recording data.

[0006]

As described above, in the conventional recording apparatus, when the apparatus is inoperative due to ignoring the data, or the recording operation of the read command is performed, the user is required to input the command and the head. Therefore, there is a problem that it takes a long time for the user to recognize the mismatch between the command and the head, and that a useless recording operation is performed.

That is, even when data is ignored due to a mismatch between a command and a head and a recording device becomes inoperable, the user must immediately predict the cause of the inactivity. Is extremely difficult, and even if the cause is expected to be a mismatch between the head and the command, to confirm this, open the cover of the recording device body, move the head to the head replacement position, and check the type. Work is required. Therefore, it takes a lot of time for the user to recognize that the cause of the malfunction of the recording apparatus is due to the mismatch between the head and the command, which causes a large delay in work and requires a great deal of effort on the user. did.

Further, as described above, when a read command is recorded as print data, a serious problem that unnecessary recording is performed on a document set to be read occurs, and ink is also consumed. The problem of wasteful consumption occurs.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and when a command that does not conform to the type of a mounted head is input, the user is promptly notified of the incompatibility. It is an object of the present invention to provide a recording apparatus capable of significantly improving operability.

[0010]

According to a first aspect of the present invention, a recording head and a reading head are selectively mounted so that recording and reading can be selectively performed. A first determining unit that determines whether the mounted head is a recording head or a reading head, and an operation command transmitted from a predetermined command transmitting unit relates to a recording operation. A command analysis unit that analyzes whether the command is a command or a command related to a reading operation, and a second unit that determines whether a head that is adapted to the command analyzed by the command analysis unit matches a currently mounted head. And a drive control means for controlling the drive of a predetermined notifying means based on the result of the determination by the second determination means, wherein the drive control means By said notifying means when the head corresponding to the command and a head which is currently attached is disagreement is obtained so as to perform a predetermined notification operation.

According to a second aspect of the present invention, recording and reading can be performed by selectively mounting a recording head that performs a recording operation on a recording medium and a reading head that reads an image and converts the image into an image signal. A recording device configured to be able to perform the selective operation, wherein first determining means for determining whether the mounted head is a recording head or a reading head;
Command analysis means for analyzing whether the operation command transmitted from the predetermined command transmission means is a command relating to a recording operation or a command relating to a read operation; a head adapted to the command determined by the command analysis means; Second determining means for determining whether or not the mounted head coincides with the head; notification control means for controlling a driving operation of a predetermined notification means based on a determination result of the second determination means; Recording operation control means for controlling the recording operation based on the determination result of the determination means of the second, when the head corresponding to the command and the currently mounted head do not match, the notification control means,
The notifying unit executes a predetermined notifying operation, while the recording operation control unit prohibits a recording operation by a recording head.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the notifying means comprises a light emitting element, and the notifying control means emits light in accordance with the result of the discrimination by the second discriminating means. The light emitting state of the element is changed.

According to a fourth aspect of the present invention, in the first or the second aspect of the present invention, the notifying means comprises a voice generating device, and the notifying control means is adapted to correspond to the discrimination result of the second discriminating means. The voice generation state is changed.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, it is determined whether a head that conforms to a command transmitted from the command generating means matches a currently mounted head. The number of intermittent driving of the notification means is changed depending on whether or not it is determined.

According to a sixth aspect of the present invention, in the first aspect of the present invention, a recording head or a reading head is detachably attached to a head mounting portion of a carriage that moves in the main scanning direction. A predetermined head capable of exposing the head mounting portion from surrounding members when it is determined that the head that is compatible with the command transmitted from the command generating means does not match the currently mounted head. The carriage is moved to the replacement position.

According to a seventh aspect of the present invention, in the first aspect of the present invention, the second discriminating means includes a head adapted to the command transmitted from the command generating means and a head currently mounted. After it is determined that the head does not match, the second determination unit determines that the command transmitted from the command generation unit matches the currently mounted head by exchanging the head. The recording or reading operation is executed in accordance with the command.

According to an eighth aspect of the present invention, the recording head according to any one of the first to seventh aspects, wherein the recording head generates bubbles in the ink by thermal energy and discharges the ink by the pressure of the bubbles. It is.

[0018]

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

FIG. 1 is a perspective view showing the overall configuration of a recording apparatus P according to this embodiment.
Creates bubbles in the ink using thermal energy,
The ink jet printer is designed to eject ink by the pressure of the bubbles. This recording device P
Then, the carriage CR housed inside can be exposed by opening a front panel P2 which can be opened and closed on the main body portion P1 forming the outer shell, and the carriage CR is shown in FIG. Such a recording head H1 and a reading head H2 as shown in FIG. 3 can be selectively mounted.

The recording head H1 includes a head body H11 detachably provided by the carriage CR and an ink tank H12 detachably provided to the head body H11. The recording head H1 is mounted on the carriage CR. As a result, the ink stored in the ink tank H12 is ejected from the ejection opening of the head main body H11 by the thermal energy as described above, and the recording operation is performed.

On the other hand, the reading head H2 holds a solid-state image pickup device such as a CCD and a light-emitting device such as an LED, and emits light emitted from the light-emitting device from a document fed from a sheet feeder P3. The image is illuminated, and the reflected light is received by a CCD and converted into an electric image signal.

In any of the above heads,
In the mounted state on the carriage CR as shown in FIGS. 2B and 3B, a non-contact type sensor such as a magnetic sensor or an optical sensor, or a contact type sensor such as a micro switch or a limit switch is used. A predetermined sensor detects whether or not a head is mounted on the carriage CR, and detects which head is mounted (recording head or reading head). The data is output to a control unit described later.

FIG. 4 is a block diagram showing the configuration of a control system circuit in this embodiment.

In FIG. 4, the system control unit 1
The entire recording apparatus is controlled according to the control program stored in M3. The system control unit 1 performs communication control via an interface (I / F) control unit 2, receives control commands and recording data from an external host computer 16, and reads the read data with the read head H2. The transmitted image data is transmitted to the host computer 16.

The recording data received from the host computer 16 via the I / F control unit 2 is temporarily
The data stored in the RAM 4 serving as a work area, and the data stored in the RAM 4 are converted into print data for printing by the print head 6 by the image data processing unit 7.
It is transmitted to the head control unit 5 via the system control unit 1.

The system control section 1 controls the light emitting element and the image pickup element of the reading head 7 via the head control section 5 in response to a command from the host computer 16 to perform an image reading operation. The image data read by the image sensor is transmitted to the system control unit 1 via the head control unit 5 and transmitted to the host computer 16 via the I / F control unit 2.

On the other hand, an input / output control unit 9 and a motor control unit 13 are connected to the system control unit 1. The input / output control unit 9 is connected to a key input unit 10 for performing a predetermined setting operation and an instruction operation, and is connected to a display unit 11 and a buzzer 12. Is converted into a predetermined signal form and transmitted to the system control unit, and the driving of the display 11 and the buzzer 12 is controlled based on a drive control signal from the system control unit as described later.

Further, a carriage motor (CR motor) 14 and a paper feed motor (LF motor) 15 are connected to the motor control unit 13, and each of the motors 14 is controlled based on a drive control signal from the system control unit 1. , 15 are controlled.

Next, in the recording apparatus having the above configuration, the display unit 11 executed when a recording operation command and a reading operation command are input from the host computer.
The control operation of the buzzer 12 will be described with reference to FIGS.

The system control unit 1 analyzes and determines whether the command transmitted from the host computer 16 is a recording operation command for instructing a recording operation or a reading operation command (steps 1 and 2), and performs recording. If it is an operation command, the control operation shown in the flowchart of FIG. 6 is executed. If it is a read operation command, the control operation shown in the flowchart of FIG. 7 is executed.

That is, when the command transmitted from the host computer 16 in step 2 is a recording operation command, the system control unit 1
The transmitted command and recording data are stored in the RAM 4 (step A1). Next, it is determined whether a head is mounted on the carriage CR (step A2),
If the head is mounted, it is determined whether the mounted head is the recording head H1 or the reading head (step A3). If the head is mounted, the mounted head is determined to be the recording head. Is determined (step A3). The determination of the type of the head is performed based on a signal from a predetermined sensor that outputs a detection signal corresponding to the type of the mounted head, as described above.

If the mounted head is the recording head H1, the system controller 1 determines that the head adapted to the command transmitted from the host computer 16 is mounted, and Then, the print data stored in the RAM 4 is read out (step A4), and the printhead 6 is sent to the print head 6 via the head control unit 5 based on the print data.
, And controls the CR motor 14 and the LF motor 15 via the motor control unit 13 to execute a known printing operation (step A5).

On the other hand, if it is determined in step A3 that the head mounted on the carriage CR is the read head H2, the display section 11 is driven to blink (intermittent drive), the buzzer 12 is driven, and the like. Inform the user that a head that does not conform to the command transmitted from the host computer is mounted (step A)
4).

At the same time, the system control unit 1
Drives the CR motor 14 to move the carriage CR to a head replacement position such as a center portion in the travel route (step A6). The position of the carriage CR is always detected by the system control unit 1 based on a signal sent from a known head position detecting means such as a linear encoder.

Thereafter, the system control unit 1 determines whether or not the head mounted on the carriage CR is the recording head 6, and the user is mounted on the carriage CR by the notification operation currently being executed. It is determined whether the read head has been exchanged from the read head 7 to the recording head 6 (step A7). When the head replacement is performed and the recording head H1 is mounted on the carriage CR, the system control unit 1 determines that the head and the command match, and the display unit 11 or the sound generating device 12 Is stopped (step A8). Thereafter, the process proceeds to step A4 to read the received data, and further performs a recording operation in step A5.

On the other hand, if it is determined in step 2 that the command transmitted from the host computer 16 is a read command, the system controller 1
Determines whether a head is mounted on the carriage CR (step B1), and if so, determines whether the head is the reading head 7 (step B2). If it is determined that there is, the command transmitted from the host computer 16 is determined to be compatible with the read head 7, and the light emitting element and the image sensor of the read head are driven via the head control unit 5 to perform the read operation. Execute (Step B3).

The image data obtained from the reading head 7 is input to the system control unit 1 via the head control unit 5, and then sent to the image data processing unit 8, where predetermined data processing is performed. After the application, it is transmitted again from the system control unit 1 to the host computer 16 via the I / F interface 2 (step B4). The host computer 16 stores the transmitted image data in the RAM 4
Once, and display it on the screen as needed.

If it is determined in step B2 that the currently mounted head is a recording head, it is mounted on the carriage CR in response to a command (read command) transmitted from the host computer 16. It is determined that the head is not suitable, the blinking drive of the display unit 11 or the drive of the buzzer 12 is performed, and the user is notified.

Thereafter, the system controller 1 drives the CR motor 14 via the motor controller 13 to
R is moved to the above-described head replacement position (step B).
7). When the user changes the head mounted on the carriage CR from the recording head H1 to the reading head H2 in response to the notification operation of the display unit 11 or the buzzer 12, the system control unit 1 controls the host computer 16 It is determined that the command from the controller and the head mounted on the carriage match (step B).
8) Stop driving the display unit 11 or the buzzer 12 (Step B9), and sequentially proceed to Step B3 and Step B4 to perform image reading operation, signal processing, transmission of image data to the host computer, and the like. Execute.

In the above-described embodiment, a buzzer is used as a sound generator. However, other than the buzzer, for example, a warning message indicating that the head is incompatible may be generated by a speaker. It is also possible to display a similar message by a character or a graphic, which can prompt the user to change the head more clearly and quickly.

(Others) The present invention is applicable not only to a recording apparatus having an ink jet recording head, but also to a recording apparatus having a recording head employing a thermal transfer method or another recording method. Among the methods, there is not only a so-called bubble jet method in which bubbles are generated in ink by thermal energy as shown in the above embodiment, and ink is ejected by the pressure of the bubbles, but also a piezoelectric ink in an ink flow path of an ink head. The present invention is also applicable to a device that uses a device and ejects ink by driving the piezoelectric device.

However, according to the bubble jet method as described above, since the state of the ink is changed by thermal energy such as an electrothermal converter or laser light, an excellent effect can be obtained in the recording apparatus. That is, according to such a method, it is possible to achieve higher density and higher definition of recording.

The typical configuration and principle are described in, for example, US Pat. Nos. 4,723,129 and 4,740.
It is preferable to use the basic principle disclosed in the specification of Japanese Patent No. 796. This method is a so-called on-demand type,
Although it can be applied to any type of continuous type, in particular, in the case of the on-demand type, it can be applied to a sheet holding liquid (ink) or an electrothermal converter arranged corresponding to the liquid path. By applying at least one drive signal corresponding to the recorded information and giving a rapid temperature rise exceeding the nucleate boiling, heat energy is generated in the electrothermal transducer, and film boiling occurs on the heat acting surface of the recording head. Liquid (ink) corresponding to this drive signal on a one-to-one basis.
This is effective because air bubbles inside can be formed. The liquid (ink) is ejected through the ejection opening by the growth and contraction of the bubble to form at least one droplet. When the drive signal is formed into a pulse shape, the growth and shrinkage of the bubble are performed immediately and appropriately, so that the ejection of liquid (ink) having particularly excellent responsiveness can be achieved, which is more preferable. As this pulse-shaped drive signal, those described in U.S. Pat. Nos. 4,463,359 and 4,345,262 are suitable. Further, if the conditions described in US Pat. No. 4,313,124 relating to the temperature rise rate of the heat acting surface are adopted, more excellent recording can be performed.

As the configuration of the recording head, in addition to the combination of the discharge port, the liquid path, and the electrothermal converter (linear liquid flow path or right-angled liquid flow path) as disclosed in the above-mentioned respective specifications, U.S. Pat. No. 4,558,333 and U.S. Pat. No. 44,558 which disclose a configuration in which a heat acting portion is arranged in a bending region.
A configuration using the specification of Japanese Patent No. 59600 is also included in the present invention. In addition, Japanese Unexamined Patent Application Publication No. 59-123670 discloses a configuration in which a common slit is used as a discharge portion of an electrothermal converter for a plurality of electrothermal converters, and an aperture for absorbing a pressure wave of thermal energy is provided. The effect of the present invention is effective even if the configuration is based on JP-A-59-138461, which discloses a configuration corresponding to a discharge unit. That is, according to the present invention, recording can be reliably and efficiently performed regardless of the form of the recording head.

Further, the present invention can be effectively applied to a full-line type recording head having a length corresponding to the maximum width of a recording medium on which a recording apparatus can record. Such a recording head may have a configuration that satisfies the length by a combination of a plurality of recording heads, or a configuration as one integrally formed recording head.

In addition, even in the case of the serial type as described above, a recording head fixed to the apparatus main body or an electric connection with the apparatus main body or ink from the apparatus main body by being attached to the apparatus main body. The present invention is also effective when a replaceable chip-type recording head that can be supplied or a cartridge-type recording head in which an ink tank is provided integrally with the recording head itself is used.

It is preferable to add a recording head ejection recovery unit, a preliminary auxiliary unit, and the like as the configuration of the recording apparatus of the present invention because the effects of the present invention can be further stabilized. If these are specifically mentioned, the recording head is heated using capping means, cleaning means, pressurizing or suction means, an electrothermal transducer, another heating element or a combination thereof. Pre-heating means for performing the pre-heating and pre-discharging means for performing the discharging other than the recording can be used.

Regarding the type and number of the recording heads to be mounted, for example, only one recording head corresponding to a single color ink is provided, and a plurality of inks having different recording colors and densities are provided. A plurality may be provided. That is, for example, the printing mode of the printing apparatus is not limited to a printing mode of only a mainstream color such as black, but may be any of integrally forming a printing head or a combination of a plurality of printing heads. The present invention is also very effective for an apparatus provided with at least one of the recording modes of full color by color mixture.

In addition, in the embodiment of the present invention described above, the ink is described as a liquid. However, an ink which solidifies at room temperature or lower and which softens or liquefies at room temperature may be used. In general, the ink jet method generally controls the temperature of the ink itself within a range of 30 ° C. or more and 70 ° C. or less to control the temperature so that the viscosity of the ink is in a stable ejection range. Sometimes, the ink may be in a liquid state. In addition, in order to positively prevent the temperature rise due to thermal energy by using the energy of the state change from the solid state of the ink to the liquid state, or to prevent the ink from evaporating, the ink is solidified in a standing state and heated. May be used. In any case, the application of heat energy causes the ink to be liquefied by the application of the heat energy according to the recording signal and the liquid ink to be ejected, or to start to solidify when reaching the recording medium. The present invention is also applicable to a case where an ink having a property of liquefying for the first time is used. In such a case, the ink
JP-A-54-56847 or JP-A-60-7
As described in Japanese Patent Publication No. 1260, it is also possible to adopt a form in which the sheet is opposed to the electrothermal converter in a state where it is held as a liquid or solid substance in the concave portion or through hole of the porous sheet. In the present invention, the most effective one for each of the above-mentioned inks is to execute the above-mentioned film boiling method.

Further, the form of the ink jet recording apparatus of the present invention is not limited to the one used as an image output terminal of an information processing apparatus such as a computer, a copying apparatus combined with a reader or the like, and a facsimile apparatus having a transmission / reception function. It may take a form.

[0051]

As described above, according to the recording apparatus of the present invention, a recording head for performing a recording operation on a recording medium and a reading head for reading an image and converting it into an image signal are selectively mounted. By doing so, in a recording apparatus capable of selectively performing recording and reading, it is determined whether the mounted head is a recording head or a reading head, and the transmitted command and the currently mounted head are determined. When the head does not match, a predetermined notification operation is performed by the notification means, so that the user can be reliably and promptly aware of the necessity of the head replacement, and there is a possibility that the work may be delayed. Disappears.

When a read command is sent when the recording head is mounted, the recording operation is stopped, so that an unnecessary recording operation is performed on a document image to be read. Such a malfunction can be avoided, and excellent reliability can be obtained.

Further, when the transmitted command and the head do not match, the carriage is moved to the head replacement position where the mounting portion of the head is exposed, so that the user can easily replace the head. Can be performed and workability is greatly improved.

When the user replaces the head with a head that conforms to the command after the command and the head have become incompatible, the processing operation is automatically executed in accordance with the command. The input operation and the like are simplified, and further improvement in operability can be expected.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view showing an overall configuration of a recording apparatus applied to an embodiment of the present invention.

FIGS. 2A and 2B are enlarged views of a portion A in FIG. 1, wherein FIG. 2A shows a state before a recording head is mounted on a carriage, and FIG.
Indicates a state after the recording head is mounted on the carriage.

FIGS. 3A and 3B are enlarged views of a portion A in FIG. 1, wherein FIG. 3A shows a state before a reading head is attached to a carriage, and FIG.
Indicates a state before the reading head is attached to the carriage.

FIG. 4 is a block diagram illustrating a configuration of a control system circuit according to the embodiment of the present invention.

FIG. 5 is a flowchart showing a part of the control operation for the notifying means shown in FIG.

FIG. 6 is a flowchart showing a part of the control operation for the notifying means of FIG. 4, showing a case where a recording command is transmitted.

FIG. 7 is a flowchart showing a part of a control operation of the notifying means shown in FIG. 4, showing a case where a read command is transmitted.

[Explanation of symbols]

 P recording device P1 carriage P2 paper supply device 1 system control unit 2 interface control unit 3 ROM 4 RAM 5 head 6 recording head 7 reading head 8 image data processing unit 9 input / output control unit 10 key input unit 11 display unit 12 sound generation device 13 Motor control unit 14 CR motor 15 LF motor 16 Host computer

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2C055 KK06 KK07 KK11 2C056 EA20 EB07 EB44 EB45 EC26 EC67 HA58 5C051 AA03 CA04 DB01 DB02 DB04 DC07 DE00 DE09

Claims (8)

[Claims] 1. A recording apparatus in which recording and reading can be selectively performed by selectively mounting a recording head and a reading head, wherein the mounted head is a recording head and a reading head. First determining means for determining which of the following, and command analyzing means for analyzing whether the operation command transmitted from the predetermined command transmitting means is a command relating to a recording operation or a command relating to a reading operation, A second determining unit that determines whether a head adapted to the command analyzed by the command analyzing unit matches the currently mounted head; and a predetermined determining unit based on a determination result of the second determining unit. Drive control means for controlling the drive of the notifying means, wherein the drive control means determines whether a head corresponding to the command and a currently mounted head are incompatible. Recording device is characterized in that so as to perform a predetermined notification operation by the notification means when an 致. 2. Recording and reading can be selectively performed by selectively mounting a recording head that performs a recording operation on a recording medium and a reading head that reads an image and converts the image into an image signal. A first discriminating means for discriminating whether a mounted head is a recording head or a reading head; and an operation command transmitted from a predetermined command transmitting means relating to a recording operation. A command analysis unit that analyzes whether the command is a command or a command related to a reading operation; and a second unit that determines whether a head that is adapted to the command determined by the command analysis unit matches a currently mounted head. No. 2 discriminating means, notification control means for controlling the driving operation of a predetermined notifying means based on the discrimination result of the second discriminating means, and the second discriminating means. Recording operation control means for controlling the recording operation based on the determination result.If the head corresponding to the command and the currently mounted head do not match, the notification control means Wherein the recording operation control means prohibits a recording operation by a recording head. 3. The notification means comprises a light emitting element, and the notification control means changes a light emitting state of the light emitting element in accordance with a result of the determination by the second determination means. 3. The recording device according to 1 or 2. 4. The notification device according to claim 1, wherein the notification device includes a voice generation device, and the notification control device changes a voice generation state in accordance with a determination result of the second determination device. Recording device. 5. The notification control unit according to claim 2, wherein the second discrimination unit determines whether a head conforming to the command transmitted from the command generation unit matches a currently mounted head. 5. The method according to claim 1, wherein the number of intermittent driving of the notification means is changed.
The recording device according to any one of the above. 6. The recording head and the reading head are configured to be detachable from a head mounting portion of a carriage that moves in a main scanning direction, and the carriage is transmitted from a command generation unit by a second determination unit. Moving the carriage to a predetermined head replacement position where the recording head mounting portion can be exposed from surrounding members when it is determined that the head conforming to the received command does not match the currently mounted head. The recording device according to claim 1, wherein: 7. The head is replaced after it is determined by the second determination unit that the head conforming to the command transmitted from the command generation unit does not match the currently mounted head. Thus, when the second determination unit determines that the command transmitted from the command generation unit matches the currently mounted head, a recording or reading operation is executed according to the command. The recording device according to claim 1. 8. The recording apparatus according to claim 1, wherein the recording head generates bubbles in the ink by thermal energy, and discharges the ink by the pressure of the bubbles.