JPH1191214A - Recorder and method for control of signal in the recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recorder and a method for control of a signal in the recorder wherein high speed receiving of a data according to each host apparatus is enabled to be executed to improve a throughput by a method wherein the recorder side obtains information related to necessity of an ACKX (completion of receiving signal) signal to the host apparatus side, and changes control of the ACKX signal and BUSY (during treatment of receiving signal) signal. SOLUTION: A method for control of a signal in a recorder has an interface control block 22 which outputs an ACKX signal indicating completion of receiving a data from a host apparatus 100 to the host apparatus 100, and a CPU 21 wherein when the ACKX signal is judged unnecessary, the ACKX signal is controlled not to be outputted thereafter, and when the ACKX signal is judged necessary, an optimum width for the ACKX signal is determined, and the ACKX signal is controlled to be outputted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus and a signal control method in the recording apparatus, and more particularly, to a recording method suitable for an ink jet recording apparatus which performs recording by discharging ink on a recording medium. The present invention relates to a signal control method in an apparatus and a recording apparatus.

[0002]

2. Description of the Related Art Normally, data transfer between a host device and a recording device is performed by a parallel interface called Centronics. In this Centronics interface, data is transferred from the host device to the recording device in 1-byte units.

As a general process, when a recording apparatus receives data from a host apparatus, the recording apparatus transfers the data to a reception buffer and processes the data as recordable data.
At this time, the recording device outputs a signal (BUSY signal) indicating that the data reception process is being performed, and notifies the host device that the next data is in a reception disabled state. After that, when the data processing ends, the recording apparatus stops outputting the BUSY signal and notifies the host apparatus that the data reception is possible. Also, at this time, the recording apparatus side receives an ACKNOWLIDGE signal (hereinafter, referred to as an “ACK”) indicating that the data reception has been completed.
ACKX signal) is set to “L” for a certain period of time to indicate to the host device that data reception has been completed.

In the conventional Centronics interface, the output timing of the ACKX signal is not strictly defined, and varies with each recording device. In some cases, the host device does not see the ACKX signal. In particular, recent host devices have this tendency.

[0005]

However, the above-mentioned prior art has the following problems. That is, as described above, in the recording device connected to the host device via the Centronics interface,
ACK not required by all host devices
It was necessary to output the X signal. For this reason, depending on the host device connected via the Centronics interface, the recording device requires a longer period of time until the next data reception becomes possible, and as a result, it is a factor that hinders an improvement in throughput.

The present invention has been made in view of the above points, and the recording apparatus acquires information on the necessity of the ACKX signal on the host apparatus side, and outputs the ACKX signal and the BUSY signal.
It is an object of the present invention to provide a recording apparatus and a signal control method in the recording apparatus, which enable high-speed data reception corresponding to each host apparatus by changing signal control and improve throughput.

[0007]

According to one aspect of the present invention, there is provided a recording apparatus capable of receiving data from a higher-level device, comprising: a completion signal indicating completion of data reception from the higher-level device. And a control unit that controls the output of the completion signal in accordance with the host device.

In order to achieve the above object, a second aspect of the present invention is characterized in that, when the control means determines that the completion signal is unnecessary, the control means performs control so as not to output the completion signal thereafter.

In order to achieve the above object, according to a third aspect of the present invention, when the control means determines that the completion signal is necessary, the control means determines an optimum width of the completion signal and outputs the determined completion signal. Control as described above.

In order to achieve the above object, a fourth aspect of the present invention is characterized in that the control means controls the output of the completion signal based on a plurality of times of receiving data from a host device by the communication means. .

In order to achieve the above object, the invention of claim 5 is characterized in that the control means controls the output of the completion signal using a command for transmitting the width information of the completion signal to a host device. And

According to another aspect of the present invention, there is provided a recording head having a plurality of printing elements arranged in a direction perpendicular to a scanning direction, and scanning the recording head to record a recording medium. It is characterized in that recording is performed on the recording medium and a predetermined amount of recording medium is fed each time scanning is performed.

According to a seventh aspect of the present invention, there is provided a signal control method in a recording apparatus capable of receiving data from a higher-level device, wherein a completion signal indicating completion of data reception from a higher-level device is transmitted to a higher-level device. A communication step of outputting to the device; and a control step of controlling output of the completion signal in response to the host device.

In order to achieve the above object, the invention of claim 8 is characterized in that, in the control step, when it is determined that the completion signal is unnecessary, control is performed so as not to output the completion signal thereafter.

According to a ninth aspect of the present invention, in the control step, when it is determined that the completion signal is necessary, an optimum width of the completion signal is determined, and the determined completion signal is output. Control as described above.

In order to achieve the above object, a tenth aspect of the present invention is characterized in that, in the control step, the output of the completion signal is controlled based on a plurality of times of receiving data from a host device in the communication step. .

In order to achieve the above object, according to the present invention, in the control step, the output of the completion signal is controlled by using a command for transmitting the width information of the completion signal to a host device. And

In order to achieve the above object, a twelfth aspect of the present invention has a recording step by a recording head equipped with a plurality of printing elements arranged in a direction perpendicular to the scanning direction,
The recording head is scanned to record on a recording medium, and a predetermined amount of recording medium is fed each time scanning is performed.

[0019]

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

[1] First Embodiment FIG. 1 is a first diagram showing a simplified configuration for implementing the present invention.
FIG. 3 is a block diagram illustrating a control system and a host device of a main part of the inkjet recording apparatus according to the embodiment. A control system of a main part of the ink jet recording apparatus includes a CPU 21,
I / F (interface) control block 22 and RO
M (program memory) 24 and working memory 25
(See FIG. 3). Further, the ink jet recording apparatus is connected to the host device 100 via the I / F control block 22.

The structure of each of the above components will be described in detail.
Controls each part of the inkjet recording apparatus based on a program recorded in the ROM 24. The I / F control block 22 receives the data transmitted from the host device 100, and temporarily stores the received data in the reception buffer 25.
Transfer to A. In addition, the I / F control block 22
A KX signal / BUSY signal control block 22A is provided.

The ACKX signal / BUSY signal control block 22A receives the STBX signal from the host device 100 and receives the ACKX signal / BUSY signal control block 22A.
Thus, an ACKX signal (a signal indicating that data reception is completed) and a BUSY signal (a signal indicating that data reception processing is being performed) are output to the host device 100. Also,
The ACKX signal / BUSY signal control block 22A includes:
ACKX / BUSY setting is input from CPU 21 and A
From the CKX signal / BUSY signal control block 22A,
The STBX reception information is output to the CPU 21.

The reception buffer 25A classifies the data transferred from the I / F control block 22 into commands and recording data. The command classified by the reception buffer 25A is read by the CPU 21, and the recording data classified by the reception buffer 25A is transferred to another work area 25B of the working memory 25 (see FIG. 3).

FIG. 2 is a perspective view showing an example of the construction of a so-called bubble jet (BJ) type color ink jet recording apparatus having the electrothermal transducer according to the first embodiment in the discharge energy generating means. The inkjet recording apparatus includes transport rollers 2 and 3, a guide shaft 5, a carriage 6, a belt 8, a sheet feed motor 70, and a carriage motor 7.
1. A recording head 90, an ink cartridge 92, an operation panel 160 and the like are provided in the apparatus main body.

The configuration of each of the above-mentioned parts will be described in detail together with the operation.
A recording medium 1 made of paper or a plastic sheet or the like loaded in an ink jet recording apparatus is supported by a pair of conveying rollers 2 and 3 arranged above and below a recording area, and is also driven by a sheet feed motor 70. The sheet is conveyed in the direction of arrow A in FIG. A guide shaft 5 is arranged in front of the transport rollers 2 and 3 in parallel with the transport rollers 2 and 3. The carriage 6 is reciprocated along the guide shaft 5 in the direction of arrow B in FIG.

A recording head 90, which is a BJ type ink jet head, is mounted on the carriage 6 as head moving means. The recording head 90 is for a color image and is arranged in the operation direction of the carriage 6. The recording head 90 includes four recording heads provided corresponding to inks of cyan (C), magenta (M), yellow (Y), and black (Bk), that is, a black recording head 9A and a cyan recording head. The head 9B includes a head 9B, a magenta recording head 9C, and a yellow recording head 9D.

Each recording head 9 constituting the recording head 90
A plurality of (e.g., 48 or 64) ink ejection ports are provided on the front surfaces of A to 9D, that is, a surface facing the recording surface of the recording medium 1 at a predetermined interval (for example, 0.8 mm). The ink ejection units are provided in a vertical line in a direction intersecting the direction. Recording head 90
Performs a printing operation by discharging ink from the ink discharge unit onto the recording medium 1.

An operation panel 160 attached to an outer case (not shown) of the ink jet recording apparatus has an online / offline switching key 60A, a menu key 60B, a switching key 60C for switching online / offline of the ink jet recording apparatus. Select key 60D
In addition to the key operation unit such as
A, power LED 61B, display LCD (Liquid C
A display unit including a crystal display 65 is provided.

FIG. 3 is a block diagram showing the overall control system and the structure of each mechanism of the ink jet recording apparatus according to the first embodiment. The ink jet recording apparatus has a CPU
21, data memory 23, program memory 24, working memory 25, power supply circuit 28, print head control circuit 29, black print head 9A, cyan print head 9B, magenta print head 9C, yellow print head 9D, interface (I / F control) Block) 22, operation keys 60
A to 60D, input port 32, output port 26, carriage motor control circuit 42, carriage motor 71, sheet feed motor control circuit 44, sheet feed motor 70, transport mechanism 43, output port 36, alarm LED 61A,
A power LED 61B and an LCD 65 are provided.

The structure of the main part will be described in detail.
Are configured as a microprocessor, are connected to the host device 100 via the interface 22, and read command data and recording data read from the controller of the host device 100 into the data memory 23; Working memory 2
The recording operation is controlled based on a program or print command data stored in the storage unit 5 or the like.

The CPU 21 controls the carriage motor 71 and the sheet feed motor 70 via the output port 26, the carriage motor control circuit 42, and the sheet feed motor control circuit 44, and records the data stored in the data memory 23. Based on the information, each of the recording heads 9A to 9D is controlled via a recording head control circuit 29 provided on the carriage 6 to perform recording.

The program memory 24 is configured as a ROM and stores a program. The data memory 23 stores a command signal (command) from the controller of the host device 100. Working memory 2
Reference numeral 5 is configured as a RAM and stores print command data. The working memory 25 includes a reception buffer area 25A and another work area 25B.

Outputs from the operation keys 60A to 60B are transmitted to the CPU 21 via the input port 32. Also,
Alarm LED 61A, power LED 61B and LCD6
A control signal is supplied from the CPU 21 via the output port to the display elements such as 5 to perform display control.

From the power supply circuit 28, a logic drive voltage VCC (for example, 5V) for operating the control logic circuit, various motor drive voltages VM (for example, 30V),
Reset voltage RESET, heat voltage VH for supplying electricity to the electrothermal transducers of each of recording heads 9A to 9D to generate heat
(For example, 25 V) are output.

Next, the ACKX in the ink jet recording apparatus according to the first embodiment configured as described above.
The procedure for changing the control of the signal and the BUSY signal will be described with reference to the flowcharts of FIGS. 4 to 6 and the timing charts of FIGS. 4 to 6 show AC.
FIG. 7 to FIG. 10 show a procedure for changing the control of the KX signal and the BUSY signal.
This shows the timing of BUSY and ACKX.

When this processing is started (step S0),
Attempts to receive data from the host device 100 a plurality of times at the timing A (see FIG. 7A) (step S1). Next, it is determined whether or not the data is correctly received (step S2). If the data is not correctly received, an error occurs (step S21). On the other hand, if the data is received correctly, BUSY “L” and ACKX
It is determined whether the STBX has been received in the “L” area (step S3).

If the STBX is received in the BUSY "L" and ACKX "L" areas (the answer in step S3 is Y
es), shorten the latter half of ACKX (FIG. 7 (B),
(C)). Finally, the ACKX width is reduced until the ACKX width after BUSY “L” becomes 0 (see FIG. 8A, steps S4 to S7).

Next, ACKX "L" in BUSY "H"
The time is gradually shortened (see FIG. 8B, step S1).
2 to step S15). If data reception is possible even if ACKX eventually disappears, the ACKX is set so as not to be output thereafter. If data reception is not performed in the middle, ACK is performed under the condition immediately before that point.
The timing of X and BUSY is set, and data is received.

On the other hand, at step S1, the timing A
(See FIG. 9A) BUSY “L” and ACKX
If the STBX is not received in the “L” area (No in step S3), the first half of the ACKX is shortened (see FIGS. 9B and 9C). Finally, the ACKX width is reduced so that the ACKX width during BUSY “H” becomes 0 (see FIG. 10A, steps S8 to S11).

Next, ACKX "L" after BUSY "L"
The time is gradually shortened (see FIG. 10B, step S
16 to Step S19). If data reception is possible even if ACKX eventually disappears, the ACKX is set so as not to be output thereafter. If data reception is not performed in the middle, AC
The timing of KX and BUSY is set, and data is received.

By controlling the ACKX width according to the above procedure, the ink jet recording apparatus can perform the optimum STBX-BUSY-ACKX control corresponding to the host device.

As described above, according to the first embodiment, the ink jet recording apparatus includes the interface control block 22 that outputs to the host apparatus 100 an ACKX signal indicating that data reception from the host apparatus 100 has been completed. If it is determined that the ACKX signal is unnecessary based on a plurality of data receptions from the host device 100,
Control is performed so as not to output the KX signal, and when it is determined that the ACKX signal is necessary, the optimum width of the ACKX signal is determined and A
Since it has the CPU 21 that controls to output the CKX signal, high-speed data reception corresponding to each host device to which the inkjet recording apparatus is connected becomes possible.
Throughput can be improved.

[2] Second Embodiment A control system of a main part of an ink jet recording apparatus according to a second embodiment has a CPU similar to the first embodiment.
21 and an I / F (interface) control block 22
, A ROM 24, and a receiving buffer 25A of the working memory 25 (see FIG. 1).

The ink jet recording apparatus according to the second embodiment is similar to the above-described first embodiment, except that the conveying rollers 2, 3, the guide shaft 5, the carriage 6, the belt 8, the sheet feed motor 70, Carriage motor 71,
A recording head 90, an ink cartridge 92, an operation panel 160, and the like are provided in the apparatus main body (see FIG. 2 described above).

The overall control system and each mechanism of the ink jet recording apparatus according to the second embodiment are the same as those of the first embodiment.
Similarly to the embodiment, the CPU 21 and the data memory 2
3, program memory 24, working memory 25, power supply circuit 28, printhead control circuit 29, black printhead 9
A, cyan recording head 9B, magenta recording head 9C,
Yellow recording head 9D, interface (I / F control block) 22, operation keys 60A to 60D, input port 32, output port 26, carriage motor control circuit 4
2. Carriage motor 71, sheet feed motor control circuit 44, sheet feed motor 70, transport mechanism 43, output port 36, alarm LED 61A, power LED 61B,
It is composed of an LCD 65 (see FIG. 3).

The configuration and operation of each unit in the ink jet recording apparatus according to the second embodiment have been described in detail in the first embodiment, and therefore the description thereof is omitted.

In the first embodiment, the ink jet recording apparatus performs the optimum ACKX control.
Data was received multiple times from the host device. On the other hand, in the second embodiment, a command for sending ACKX width information from the inkjet recording apparatus side to the host apparatus side is prepared and used. This also has the same effect as in the first embodiment.

As described above, according to the second embodiment, the ink jet recording apparatus includes the interface control block 22 that outputs to the host apparatus 100 an ACKX signal indicating that data reception from the host apparatus 100 has been completed. And a CPU 21 for controlling the output of an ACKX signal using a command for transmitting ACKX width information from the inkjet recording apparatus to the host apparatus, so that high-speed data corresponding to each host apparatus to which the inkjet recording apparatus is connected. Reception is enabled, and throughput can be improved.

In the first and second embodiments described above, the case where the recording apparatus is an ink jet recording apparatus has been described as an example, but the recording apparatus is not limited to the ink jet recording apparatus. Of course, the present invention can be applied to other types of recording apparatuses.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of one device. A storage medium storing software program codes for realizing the functions of the above-described embodiments is supplied to a system or an apparatus, and a computer (or CPU or MPU) of the system or the apparatus executes the program code stored in the storage medium. Needless to say, this can also be achieved by executing the reading.

In this case, the program code itself read from the storage medium implements the functions of the above-described embodiment, and the storage medium storing the program code constitutes the present invention.

As a storage medium for supplying the program code, for example, a floppy disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD
-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

When the computer executes the readout program code, not only the functions of the above-described embodiment are realized, but also the OS or the like running on the computer is actually executed based on the instructions of the program code. It goes without saying that a part or all of the above-described processing is performed, and the functions of the above-described embodiments are realized by the processing.

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, based on the instructions of the program code, It goes without saying that the CPU included in the function expansion board or the function expansion unit performs part or all of the actual processing, and the processing realizes the functions of the above-described embodiments.

[0055]

As described above, according to the first aspect of the present invention, there is provided a recording apparatus capable of receiving data from a higher-level device, wherein a completion signal indicating completion of data reception from the higher-level device is transmitted to the higher-level device. Communication means for outputting to the host device and control means for controlling the output of the completion signal corresponding to the host device.Thus, by controlling the completion signal, high-speed data reception corresponding to each host device becomes possible. Thus, throughput can be improved.

According to the second aspect of the present invention, when the control means of the recording apparatus determines that the completion signal is unnecessary, it controls so as not to output the completion signal thereafter. By not outputting a complete signal that has not been set, it is possible to shorten the period until the next data can be received from the host device, and as a result, high-speed data reception corresponding to each host device is possible And the throughput can be improved.

According to the third aspect of the present invention, the control means of the recording apparatus determines an optimum width of the completion signal when determining that the completion signal is necessary, and outputs the determined completion signal. In order to control, by not outputting the completion signal to the host device as it is as in the related art, it is possible to shorten the period until the next data can be received from the host device. , High-speed data reception is possible, and the throughput can be improved.

According to the fourth aspect of the present invention, the control means of the recording apparatus controls the completion signal in order to control the output of the completion signal based on a plurality of times of data reception from the host device by the communication means. By doing so, high-speed data reception corresponding to each higher-level device becomes possible, and throughput can be improved.

According to the fifth aspect of the present invention, the control means of the recording apparatus controls the output of the completion signal using a command for transmitting the width information of the completion signal to the host apparatus. , High-speed data reception corresponding to each higher-level device can be performed, and the throughput can be improved.

According to the invention of claim 6, the recording apparatus has a recording head equipped with a plurality of printing elements arranged in a direction perpendicular to the scanning direction, and scans the recording head to print on a recording medium. In order to perform recording and feed a predetermined amount of recording medium each time scanning is performed, even in a recording apparatus having a recording head equipped with a plurality of printing elements, by controlling the completion signal, it is possible to correspond to each higher-level apparatus. High-speed data reception becomes possible, and throughput can be improved.

According to the seventh aspect of the present invention, there is provided a signal control method in a recording apparatus capable of receiving data from a higher-level device, wherein the completion signal indicating completion of data reception from the higher-level device is output to the higher-level device. And a control step of controlling the output of the completion signal corresponding to the host device. By controlling the completion signal, high-speed data reception corresponding to each host device can be performed, thereby improving the throughput. Can be achieved.

According to the invention of claim 8, in the control step of the signal control method in the recording apparatus, when it is determined that the completion signal is unnecessary, control is performed so as not to output the completion signal thereafter. By not outputting a completion signal that is not required by the higher-level device, it is possible to reduce the period until the next data can be received from the higher-level device. As a result, a high-speed corresponding to each higher-level device can be obtained. Data can be received, and throughput can be improved.

According to the ninth aspect of the present invention, in the control step of the signal control method in the recording apparatus, when it is determined that the completion signal is necessary, an optimum width of the completion signal is determined,
In order to control the output of the determined completion signal, the completion signal is not output to the host device as it is as in the related art, thereby shortening the period until the next data can be received from the host device. And as a result,
High-speed data reception corresponding to each host device becomes possible,
Throughput can be improved.

According to the tenth aspect of the present invention, in the control step of the signal control method in the recording apparatus, the output of the completion signal is controlled based on a plurality of times of data reception from a higher-level apparatus in the communication step. By controlling the completion signal, high-speed data reception corresponding to each host device can be performed, and the throughput can be improved.

According to the eleventh aspect of the present invention, in the control step of the signal control method in the recording apparatus, the output of the completion signal is controlled by using a command for transmitting the width information of the completion signal to a host device. By controlling the completion signal, high-speed data reception corresponding to each host device can be performed, and the throughput can be improved.

According to a twelfth aspect of the present invention, a signal control method in a recording apparatus includes a recording step using a recording head equipped with a plurality of printing elements arranged in a direction perpendicular to a scanning direction. In order to perform recording on the recording medium by scanning and perform a predetermined amount of recording medium feed at each scan, even in a recording apparatus having a recording head equipped with a plurality of printing elements, by controlling the completion signal, Thus, high-speed data reception corresponding to each higher-level device can be performed, and the throughput can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a control system and a host device of a main part of an inkjet recording apparatus according to first and second embodiments of the present invention.

FIG. 2 is a perspective view illustrating a schematic configuration of a main part of an inkjet recording apparatus according to first and second embodiments of the present invention.

FIG. 3 is a block diagram illustrating the overall control system and the configuration of each mechanism of the inkjet recording apparatus according to the first and second embodiments of the present invention.

FIG. 4 is a flowchart illustrating a procedure of controlling an ACKX signal and a BUSY signal in the inkjet recording apparatus according to the first embodiment of the present invention.

FIG. 5 is a flowchart illustrating a procedure of controlling an ACKX signal and a BUSY signal in the inkjet recording apparatus according to the first embodiment of the present invention.

FIG. 6 is a flowchart illustrating a procedure of controlling an ACKX signal and a BUSY signal in the inkjet recording apparatus according to the first embodiment of the present invention.

FIGS. 7A and 7B are diagrams showing the timing of an STBX-BUSY-ACKX signal in the ink jet recording apparatus according to the first embodiment of the present invention, wherein FIG. 7A is an explanatory diagram showing the state of timing A, and FIG. STBX during timing A
FIG. 7C is a diagram illustrating a state in which BUSY “L” is received.
It is explanatory drawing which shows the state which shortened the ACKX width later.

FIG. 8 is a diagram showing the timing of an STBX-BUSY-ACKX signal in the ink jet recording apparatus according to the first embodiment of the present invention, wherein (A) shows BUSY “L”;
Explanatory drawing showing a state where the ACKX width is set to “0” later.
(B) is an explanatory view showing a state in which the ACKX width in BUSY “H” is shortened.

FIGS. 9A and 9B are diagrams showing the timing of the STBX-BUSY-ACKX signal in the ink jet recording apparatus according to the first embodiment of the present invention, wherein FIG. 9A is an explanatory diagram showing the state of timing A, and FIG. STBX after ACKX output
FIG. 7C is a diagram illustrating a state in which BUSY “H” is received.
It is explanatory drawing which shows the state which shortened the ACKX width inside.

FIG. 10 is a diagram showing the timing of an STBX-BUSY-ACKX signal in the ink jet recording apparatus according to the first embodiment of the present invention, wherein FIG.
FIG. 7B is an explanatory diagram showing a state where the ACKX width during “H” is set to “0”, and FIG. 7B is an explanatory diagram showing a state where the ACKX width after BUSY “L” is shortened.

[Explanation of symbols]

 Reference Signs List 21 CPU 22 I / F control block 22A ACKX signal / BUSY signal control block 24 ROM 25 Working memory 25A Receiving buffer 90 Recording head 100 Host device

Claims (12)

[Claims] 1. A recording device capable of receiving data from a higher-level device, comprising: communication means for outputting a completion signal indicating completion of data reception from the higher-level device to the higher-level device; A control unit for controlling the output of the signal. 2. The recording apparatus according to claim 1, wherein said control means, when judging that said completion signal is unnecessary, controls so as not to output said completion signal thereafter. 3. The control means according to claim 1, wherein when it is determined that the completion signal is necessary, an optimum width of the completion signal is determined, and control is performed so as to output the determined completion signal. The recording device according to any one of the preceding claims. 4. The recording apparatus according to claim 1, wherein the control unit controls the output of the completion signal based on a plurality of times of reception of data from a host device by the communication unit. apparatus. 5. The control unit according to claim 1, wherein the control unit controls output of the completion signal using a command for transmitting width information of the completion signal to a host device. Recording device. 6. A recording head provided with a plurality of printing elements arranged in a direction perpendicular to the scanning direction. The recording head is scanned to perform recording on a recording medium, and a predetermined amount is scanned each time. 2. The recording medium feeding of claim 1 is performed.
6. The recording apparatus according to any one of claims 1 to 5, 7. A signal control method in a recording device capable of receiving data from a higher-level device, comprising: a communication step of outputting a completion signal indicating completion of data reception from the higher-level device to the higher-level device; And controlling the output of the completion signal. 8. The signal control method according to claim 7, wherein in the control step, when it is determined that the completion signal is unnecessary, the control is performed so as not to output the completion signal thereafter. 9. In the control step, when it is determined that the completion signal is necessary, an optimum width of the completion signal is determined, and control is performed so as to output the determined completion signal. A signal control method in the recording apparatus described in the above. 10. The recording according to claim 7, wherein in the control step, the output of the completion signal is controlled based on a plurality of times of data reception from a host device in the communication step. A signal control method in a device. 11. The control method according to claim 7, wherein the control step controls the output of the completion signal using a command for transmitting the width information of the completion signal to a host device. Signal control method in the recording device of the first embodiment. 12. A recording step by a recording head provided with a plurality of printing elements arranged in a direction perpendicular to the scanning direction, wherein the recording head is scanned to perform recording on a recording medium and to perform scanning each time. 12. The signal control method in a recording apparatus according to claim 7, wherein a predetermined amount of recording medium feeding is performed.