JP2003220745A - Print system and digital camera and printer constituting the system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a print system in which high speed print operation is realized by an easy means. <P>SOLUTION: The print system comprises a functional combination of a digital camera 10 and a printer 60 provided with control means 13 and 22, respectively. The digital camera performs operations, including an operation for converting each color component data of an image to be printed sequentially into data being printed, and an operation for transferring each data subjected to color conversion processing sequentially to a printer, under control of a control means 13. The printer performs operations, including an operation for carrying a print sheet and an operation for driving a print head with data transferred from the digital camera, under control of a control means 22. The control means cooperate such that the color conversion processing on the digital camera side and the carrying operation on the printer side are performed at a timing including a part of time where both operations progress in parallel. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing system, a digital camera and a printer constituting the system, and more specifically, a digital camera capable of recording electronic image data obtained by photoelectrically converting an optical image as digital data. And a printer capable of printing an image based on digital data acquired by the digital camera on a print sheet.

[0002]

2. Description of the Related Art In recent years, a digital camera capable of recording electronic image data obtained by photoelectrically converting an optical image as digital data, and an image input device such as a digital still camera (hereinafter referred to as a digital camera) Regarding a print system including an image forming apparatus such as a printer (hereinafter referred to as a printer) capable of printing an image based on photographed and recorded digital data on a print sheet, various proposals have been made, for example, in JP-A-10-250190. Has been done.

The printing system disclosed in Japanese Unexamined Patent Publication No. 10-250190 comprises a digital camera and a portable printer, both of which are electrically connected by a predetermined connecting means, and a battery on the digital camera side. By supplying the power of 1 to the portable printer, the printer can be driven and a predetermined print operation can be executed.

In this case, when the remaining capacity of the battery on the digital camera side becomes low, the print operation in progress is stopped and information about the progress status of the print operation up to that point is transmitted to the digital camera side. On the digital camera side, the information transmitted from the printer side is held in a predetermined storage means.
When the printing operation is restarted by replacing the battery on the digital camera side, the printing operation can be started at an appropriate stage based on the information stored in the storage means of the digital camera.

On the other hand, the present applicant has also previously proposed a print system including a digital camera and a printer in Japanese Patent Application Laid-Open No. 10-200850.

The printing system disclosed in Japanese Unexamined Patent Publication No. 10-200850 allows an image selected as a print target to be displayed on a display unit of a digital camera so that the image can be confirmed. The image data corresponding to the confirmed image is transmitted to the printer side.

With such a structure, it is possible to easily select and confirm the image to be printed,
The print operation of an intended image can be executed easily and surely.

Generally, in a printing system constructed by functionally coupling a digital camera and a printer as described above, there is always a demand for higher speed printing operation.

[0009]

However, although various proposals have been made in the past regarding the technology for speeding up the printing operation in a general printer, the above-mentioned digital camera and printer have been proposed. In a printing system that works by linking together, there are few proposals aimed at speeding up the printing operation, and there is still a lot of room for improvement.

Therefore, the above-mentioned Japanese Unexamined Patent Publication No. 10-25019.
In the print system disclosed in Japanese Patent Laid-Open No. 0, JP-A-10-200850 and the like, there is no problem recognition from such a viewpoint, and of course, disclosure of means for solving the problem based on this viewpoint is also made. Absent.

The present invention has been made in view of the above points, and its object is to provide a digital camera capable of acquiring and recording electronic image data, and an image transmitted from the digital camera. In a print system including a printer that receives data and prints out an image corresponding to the image data on a medium such as print paper, a print system that realizes high-speed printing operation by an easy means, and the print system To provide a possible digital camera and printer.

[0012]

In order to achieve the above object, in the printing system according to the first aspect of the present invention, a digital camera and a printer each provided with control means for controlling the operation are functionally coupled. The digital camera includes a color conversion processing operation for sequentially converting each predetermined color component data relating to an image to be printed into print data having a form suitable for the print operation by the printer. , A data transfer operation for sequentially transferring each predetermined data processed by this color conversion processing operation to the printer side, under the control of its own control means. , The print head of its own in the form corresponding to the conveyance operation for the print paper and the data transferred from the digital camera side. Is configured to be able to execute an operation including a head driving operation for driving a printing section under the control of its own control means, and a color conversion processing operation on the digital camera side and a printer side. It is characterized in that the respective control means cooperate with each other such that both operations of the carrying operation are performed at a timing including a portion which progresses in parallel in time.

A printing system according to a second aspect of the present invention is a printing system in which a digital camera provided with control means for controlling the operation and a printer are functionally coupled to each other. Under the control of its own control means, color conversion processing means for converting each predetermined color component data relating to one image to be printed into print data in a form suitable for the printing operation by the printer, A memory for holding print data of the color component relating to one image formed by the color conversion processing means, and the print data held in this memory for each line of the color component of the image. And a data transfer operation for gradually transferring to the printer side, wherein the printer is for printing under the control of its own control means. A form corresponding to the print paper transporting means for transporting the print paper, the memory for holding the print data for each line transferred from the digital camera side, and the print data for each line held in the memory. And a head drive operation for driving its own print head section, and a color conversion processing operation by the color conversion processing means on the digital camera side and a print paper by the print paper conveying means on the printer side. The control means on the digital camera side and the control means on the printer side are configured to cooperate with each other so that both of the transporting operation and the transporting operation are performed at a timing including a temporally parallel portion. And

A print system according to a third aspect of the present invention is a print system in which a digital camera provided with control means for controlling operations and a printer are functionally coupled to each other. Under the control of its own control means, color conversion processing means for converting each predetermined color component data relating to one image to be printed into print data in a form suitable for the printing operation by the printer, A memory for holding print data of the color component relating to one image formed by the color conversion processing means, and print data held in the memory for each image of the color component of the image. And a data transfer means for transferring the data to the printer side, and the printer is for printing under the control of its own control means. And a memory for holding print data for each image transferred from the digital camera side, and print data for each image held in the memory. Head drive means for driving its own print head portion in a form corresponding to, and both of the color conversion processing operation on the digital camera side and the print sheet conveying means on the printer side. The control means on the side of the digital camera and the control means on the side of the printer cooperate with each other so that the operation is performed at a timing including a time-parallel portion.

A digital camera according to a fourth aspect of the present invention is a digital camera applied to a print system in which a digital camera provided with control means for controlling its operation and a printer are functionally coupled to each other. Under the control of its own control means, a color conversion process for performing a color conversion process for sequentially converting each predetermined color component data relating to the image to be printed into the print data of a form suitable for the printing operation by the printer. And a data transfer unit for sequentially transferring the respective predetermined print data processed and formed by the color conversion processing unit to the printer side, and the control unit includes:
The control on the printer side is performed such that both the color conversion processing operation by the color conversion processing means and the operation for transporting the print sheet on the printer side are performed at a timing including a portion that progresses in parallel in time. It is characterized in that it is adapted to cooperate with the means.

A printer according to a fifth aspect of the present invention is a printer applied to a print system in which a digital camera provided with control means for controlling its operation and a printer are functionally coupled to each other. Under the control of the control means, a print sheet transporting means for carrying out a print sheet transporting operation, and a head driving means for driving and printing a print head portion of its own in a form corresponding to the data transferred from the digital camera side. And the control means adapts the print paper transport operation by the print paper transport means and the predetermined color component data relating to the image to be printed on the digital camera side to the print operation by the printer. Both the color conversion processing operation for sequentially converting to the print data of the specified form Wherein the manner it has been configured to cooperate with the control means of the digital camera so as to be performed at a timing as to include a portion that travels in parallel.

A digital camera according to a sixth aspect of the present invention is a digital camera applied to a print system in which a digital camera provided with control means for controlling operation and a printer are functionally coupled to each other. Under the control of its own control means, color conversion processing means for converting each predetermined color component data regarding one image to be printed into print data in a form suitable for the printing operation by the printer, and this color A memory for holding print data of the color component relating to one image formed by the conversion processing means, and print data held in the memory for each line of the color component of the image. Data transfer means for transferring to the printer side is included, and the control means controls the color conversion processing operation and the printer side. Characterized in that both the operation of the lint paper transporting operation is configured to cooperate with the printer side of the control means so as to be performed at a timing that includes a portion parallel temporally.

A printer according to a seventh aspect of the invention is a printer applied to a print system in which a digital camera provided with control means for controlling its operation and a printer are functionally coupled to each other. Under the control of the control means of its own, the print paper carrying means for carrying the print paper, the memory for holding the print data for each line transferred from the digital camera side, and this memory And a head driving means for driving the own print head portion in a form corresponding to the held print target data for each line, and the control means includes the print paper transport operation and the digital print paper feeding operation. The digital camera is set so that both the color conversion processing operation on the camera side and the color conversion processing operation are performed at a timing including a part that is parallel in time. Characterized in that it is configured to cooperate with the control means la side.

A digital camera according to an eighth aspect of the invention is a digital camera applied to a print system in which a digital camera provided with control means for controlling its operation and a printer are functionally coupled to each other. Under the control of its own control means, color conversion processing means for converting each predetermined color component data regarding one image to be printed into print data in a form suitable for the printing operation by the printer, and this color A memory for holding print data of the color component relating to one image formed by the conversion processing means, and print data held in the memory for each image of the color component of the image. Data transfer means for transferring to the printer side is included, and the control means includes the color conversion processing operation and the printer side process. Characterized in that both the operation of the cement sheet conveying operation has been configured to cooperate with the printer side of the control means so as to be performed at a timing including temporally parallel parts.

A printer according to a ninth aspect of the invention is a printer applied to a printing system in which a digital camera provided with control means for controlling its operation and a printer are functionally coupled to each other. Under the control of the control means of its own, is a print paper carrying means for carrying a print paper carrying operation, a memory for holding print data for each image transferred from the digital camera side, And a head driving unit that drives the print head unit of the printer in a form corresponding to the print data for each image stored in the memory, and the control unit is configured to convey the print paper. Both the operation and the color conversion processing operation on the digital camera side should be performed at a timing including a portion that is parallel in time. Characterized in that it is configured to cooperate with the control means of the camera.

In a tenth aspect of the present invention, in the print system according to the second or third aspect, the print sheet carrying means of the printer carries out the print sheet from the paper loading section as a print sheet carrying operation and carries out the print head section. And a print sheet conveying operation for causing a relative displacement with respect to the print head portion so as to perform a predetermined print operation by the print head portion. The control means on the side of the digital camera and the control means on the side of the printer are configured to execute a carrying operation and the color conversion processing operation by the color conversion processing means on the side of the digital camera and the printer side. In which both of the above-mentioned print paper transporting operations by the print paper transporting means in Characterized in that it is one that is configured to cooperate so as to be performed at a timing including.

An eleventh aspect of the present invention is the digital camera according to the sixth or eighth aspect, in which the print sheet carrying means of the printer carries out the print sheet from the sheet loading section as a print sheet carrying operation to carry out the print head section. Transporting operation including a preparatory transporting operation for transporting the print head to a position facing the print head and a print paper transporting operation for causing a relative displacement with the print head section so as to perform predetermined printing by the print head section. When the control means is configured to execute the above, the control means performs both the color conversion processing operation by the color conversion processing means and the print paper transport operation by the print paper transport means on the printer side. And the control means on the printer side so as to be carried out at a timing such that Characterized in that it is configured to work.

A twelfth aspect of the present invention is the printer according to the seventh or ninth aspect, wherein the print sheet conveying means is
As a print sheet transport operation, a preparatory transport operation for unloading the print sheet from the sheet loading section and transporting it to a position facing the print head section, and the print head section for performing predetermined printing by the print head section. Is configured to execute a transport operation including a print sheet transport operation for causing a relative displacement with respect to a section, and the control means is configured to perform the print sheet transport operation by the print sheet transport means and the digital It is characterized in that it is configured to cooperate with the control means on the digital camera side so that both operations of the color conversion processing operation on the camera side are performed at a timing including a temporally parallel portion.

Therefore, in the printing system according to the first invention to the third invention or the tenth invention, the portion in which the color conversion processing operation on the digital camera side and the transport operation on the printer side proceed in parallel in time. Since the control means of both the digital camera and the printer can be made to cooperate with each other so that they can be executed at a timing including the above, it is possible to easily realize high-speed printing operation.

Therefore, in the digital camera according to the fourth invention, the sixth invention, the eighth invention, and the eleventh invention, the color conversion processing operation on the digital camera side and the transport operation on the printer side are performed in parallel in time. The control means of both the digital camera and the printer are configured to cooperate with each other so that the printing operation can be performed at a timing including a portion that progresses as a result. The operation at the time of execution can be speeded up.

Therefore, the printer according to the fifth invention, the seventh invention, the ninth invention and the twelfth invention performs the color conversion processing operation on the digital camera side and the conveying operation on the printer side.
Since the control means of both the digital camera and the printer are configured to cooperate with each other so that they can be executed at a timing that includes a portion that progresses in parallel in time, it is functionally coupled with the digital camera. Then, the operation at the time of executing the print operation can be speeded up.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is a block configuration diagram showing an outline of an internal configuration of each of a digital camera (image input device) and a printer (image forming device) which constitute a print system according to a first embodiment of the present invention.

As shown in FIG. 1, the print system of the present embodiment is an image input device (hereinafter, referred to as an image input device such as a digital camera.
A digital camera 10 and an image forming apparatus (hereinafter referred to as a printer) 60 such as a thermal sublimation printer are provided, and both devices conform to a USB (Universal Serial Bus) standard that is one of serial interface standards. It is configured to be electrically connected by a compliant predetermined communication means or the like so that they can communicate with each other. The digital camera 10 and the printer 60 have control means (DSC controller 13 to be described later) for controlling their respective operations.
And a microcomputer 22) are respectively provided.

In other words, the printing system of this embodiment is configured by functionally connecting the digital camera 10 and the printer 60, each of which is provided with the control means (13.22) for controlling the operation. is there.

First, main constituent members constituting the inside of the digital camera 10 will be described below with reference to FIG.

A digital camera 10 which constitutes a part of the printing system of the present embodiment comprises a plurality of optical elements and the like, and a photographing optical system 11 for condensing a light flux from a subject to form an optical subject image. Photoelectric conversion element (CCD (Charg
e-Coupled Device) An image pickup unit 12 including an image pickup device such as a sensor) and its drive circuit, and a control means for performing overall control of the operation of the digital camera 10 to achieve the function as an image input device. Therefore, for example, a DSC (Digital Still C) formed by a system LSI (Large Scale Integration) or the like.
controller 13 and an operation member or the like for generating instruction signals for instructing various settings and operations of the digital camera 10 (not shown; electrical configuration included in a circuit unit of the digital camera 10) A member that is, for example, a release button for instructing the start of a shooting operation, a power button for switching the open / closed state of the power source, a frame number selection for instructing the number of image data to display an image or desired image data to be printed. A camera operation switch 14 including a plurality of switch members that interlock with buttons, etc.)
A liquid crystal monitor 15 which is a display means for displaying and outputting an image based on the image data acquired by the digital camera 10, a memory which temporarily stores the image data and various data, that is, a semiconductor storage element which is a temporary storage means. SDRAM (Synchronous Dyna)
mic Random Access Memory 16 and electrically rewritable semiconductor memory (ROM; ROM; Read Only)
Flash ROM which is Memory))
7, a recording medium 18 including a semiconductor memory medium or a magnetic or optical recording medium for recording image data or the like acquired by the image pickup unit 12 and subjected to predetermined signal processing by the DSC controller 13 in a predetermined form, and the digital camera A USB host controller 19 which is a connecting means for connecting the printer 10 and the printer 60, and which constitutes a part of a data transfer means for transferring image data and the like from the digital camera 10 side to the printer 60 side; Power supply circuit 21 including an electric circuit including a secondary battery, which is a battery, and controlling the electric power supplied from the secondary battery
And a connection terminal 57 on the printer 60 side, which constitutes a part of connection means for connecting the digital camera 10 and the printer 60, and the like.

The DSC controller 13 is a control means for performing overall control of the digital camera 10 as described above. Therefore, the DSC controller 13 is interposed between the CCD interface circuit 13a that receives the image signal of the subject image acquired by the image pickup unit 12 and the CCD interface circuit 13a and the SDRAM 16 and electrically connects them by a signal line. A memory interface circuit 13b which is a means for
Signal processing for taking in image data that has been subjected to predetermined signal processing (image size conversion processing, etc.) based on image data temporarily stored in the SDRAM 16 and converting this into data in a form that can be displayed by the liquid crystal monitor 15. An image for converting the size of the image so that the image data is adapted to the display resolution of the liquid crystal monitor 15 based on the video encoder circuit 13c for performing the above and the image data which is controlled by the RISC controller 13f and temporarily stored in the SDRAM 16. A size conversion circuit 13d and an image compression / expansion circuit 1 that performs image data encoding processing, decoding processing, and the like.
3e and the risk of controlling the internal circuit of the DSC controller 13 (RISC; Reduced Instruction Set Computer)
er) The controller 13f and the like are provided inside.

The DSC controller 13 performs the overall control of the digital camera 10 as described above, and also controls the entire print system when the digital camera 10 and the printer 60 are connected. I am supposed to get involved.

In this case, the DSC controller 1
The control unit 3 controls the transmission of various instruction signals, predetermined image data, and the like to the microcomputer 22 that is provided on the printer 60 side and is responsible for overall control of the printer 60.

The encoding process performed by the image compression / expansion circuit 13e is a process performed based on the image data temporarily stored in the SDRAM 16, and is, for example, JP
This is a process for generating image data of a predetermined form such as EG (Joint Photographic Expert Group) data.

JPE generated by this encoding process
The image data in the G format is stored in the memory interface circuit 1
It is transmitted to the recording medium 18 or the like via 3b and recorded in a predetermined area of the recording medium 18.

The generated JPEG format image data is recorded in advance in a predetermined area of the recording medium 18 instead of recording the program code of the RISC controller 13f, for example. The image data generated in a partial area of the flash ROM 17 may be recorded.

In the decoding process performed by the image compression / expansion circuit 13e, the image data (JPEG data) compressed in a predetermined recording area of the recording medium 18 and recorded in a predetermined state is stored in the memory interface circuit 13.
This is a process of performing a predetermined decompression process on the read image data after reading via b. The image data expanded by the image compression / expansion circuit 13e is
SDRAM via the memory interface circuit 13b
16 and the like can be temporarily stored.

In this way, the DSC controller 13
The image signal representing the subject image acquired by the image pickup unit 12 is received, and various image signal processing or the like is performed on the image signal to generate image data of a predetermined form. Then, the image data and the like generated in this way are displayed on the liquid crystal monitor 15 and SDRAM1.
6, the flash ROM 17, the recording medium 18, the USB host controller 19, and other corresponding members are appropriately output.

The DSC controller 13 is electrically connected to the flash ROM 17, recording medium 18, and USB host controller 19 by an external bus line 20. As a result, image data and the like can be transmitted and received between the above-mentioned DSC controller 13 and each component.

The connection terminal 57 is connected to the connection terminal 58 on the printer 60 side as described above, so that the two devices (digital camera 10 ...
It constitutes a part of connection means for connecting the printer 60).

When the digital camera 10 and the printer 60 are connected by the connecting terminals 57 and 58,
In addition to various information, instruction signals, control signals, and the like, transmission and reception of image signals and the like that have been subjected to signal processing in a predetermined form and supply of power from the printer 60 side to the digital camera 10 side are performed between the two devices. It is like this.

Therefore, the connection terminal 57 on the side of the digital camera 10 is connected to the US inside the digital camera 10.
It is connected to the B host controller 19 and the camera power supply circuit 21.

In this embodiment, as shown in FIG. 1, the connection terminals 57 and 58 are composed of, for example, a pair of connectors (terminals), but the present invention is not limited to this. The digital camera 10 and the printer 60 may be configured to be connectable via a signal cable.

The camera power supply circuit 21 is used when the digital camera 10 operates independently.
It functions as a zero power source. Therefore, the camera power supply circuit 21 is electrically connected to the power supply line (not shown) of the circuit unit of the digital camera 10.

In addition, the digital camera 10 and the printer 6
When 0 and 0 are connected by the connection terminals 57 and 58, the printer power circuit 55 (described later) on the printer 60 side is connected to the digital camera 1 via the connection terminals 57 and 58.
It will be electrically connected to the camera power supply circuit 21 of 0. When this happens, the printer power circuit 55
Serves as a power source for supplying power to the entire printing system including both the digital camera 10 and the printer 60.

That is, the digital camera 10 and the printer 6
When the printing system according to the present embodiment operates in a state where 0 is connected to 0, the power supplied from the printer power supply circuit 55 is supplied to the camera power supply circuit 21 via the connection terminals 57 and 58. , This printing system is working. In other words, the printer power supply circuit 55 serves as a main power supply in the print system of this embodiment.

Furthermore, when the digital camera 10 and the printer 60 are connected by the connection terminals 57 and 58, the secondary battery provided inside the camera power supply circuit 21 receives the power from the printer power supply circuit 55. 57
It is possible to receive it via 58. Therefore, as a result, the printer power supply circuit 55 becomes the digital camera 1
It also has the function of charging zero batteries.

Next, the main constituent members forming the inside of the printer 60 will be described below with reference to FIG.

The printer 60, which constitutes a part of the print system of this embodiment, is the USB device controller 2
2a inside, and the digital camera 10 described above.
The microcomputer 22 that controls the printer 60 in order to achieve the function as the image forming apparatus in cooperation with the DSC controller 13 and the paper loading unit that stacks a plurality of print papers 46 to be used for the printing operation. A certain paper tray 45, a paper tray detection switch 44 for detecting whether the paper tray 45 is properly loaded at a predetermined position of the printer 60, and the print paper 4
6 is a drive source for carrying out a carrying operation of appropriately moving 6 in a predetermined direction at a predetermined position inside the printer 60, for example, a carrying motor 49 such as a stepping motor and a microcomputer 22. And a conveyance motor drive circuit 50 for controlling the drive of the conveyance motor 49 on the basis of the instruction signal of FIG.
6, and a pinch roller 48 that is provided at a position facing the grip roller 47 and that sandwiches the print paper 46 between the grip roller 47 and assists the conveyance operation of the print paper 46. A sensor composed of an element such as a photo reflector (PR) and a print sheet 46 in the moving direction.
And a head position of the print head unit (thermal head 38) are pressed against the print surface of the print paper 46 while sandwiching the ink ribbon 33, and the conveyance operation of the print paper 46 is assisted. The platen roller 52, the head position control motor 41 that controls up / down (UP / DOWN) driving of the head arm 39 including the thermal head 38, and the head position control motor 41 based on an instruction signal from the microcomputer 22. Head motor drive circuit 4 for drive control
2, a cam 40 that is connected to the rotary shaft of the head position control motor 41, transmits the rotational driving force of the head position control motor 41 to the head arm 39, and swings this in the direction of arrow X in FIG. A head position sensor 43, which is a sensor including an element such as an interrupter (PI) and detects the position of the thermal head 38 by detecting the rotational position of the cam 40, etc., and a head position sensor 43 from the microcomputer 22 via the external bus line 23. The SRAM 24 which is an internal memory for temporarily storing the image data in a form used for the printing operation and transmitted to the printer 60 side, and the SRAM 24
The image data temporarily stored in the thermal head 38 is read out and output to the thermal head 38.
A thermal head control circuit 25 for driving and controlling the ink, an ink ribbon case 32 in which a dye-coated ink ribbon 33 for performing desired printing is wound and housed, a photo reflector (PR) and the like. Ink ribbon 33, which is a sensor composed of elements
Ribbon position detecting sensor 36 for detecting the position of each film (Y, M, C, protection; details of the ink ribbon 33 will be described later), and a temperature sensor for detecting the temperature of the thermal head 38 which is configured by an element such as a thermistor. 37, a ribbon motor 30 which is a drive source for winding the ink ribbon 33 and moving the ink ribbon 33 appropriately at a predetermined time, and the ribbon motor 30 based on an instruction signal from the microcomputer 22. A ribbon motor drive circuit 31 for performing drive control, a ribbon movement detection sensor 35 including an element such as a photo interrupter (PI) for detecting whether or not the winding operation of the ink ribbon 33 is correctly executed, and an ink ribbon 33. The slit case disk 34, which is configured to rotate in association with the movement, and the ribbon case 32 form a book. A ribbon case detection switch 29 for detecting whether or not the printer 60 is properly loaded at a predetermined position of the linter 60, and a plurality of operation members for executing various settings and operations of the printer 60 are interlocked with each other to correspond to a predetermined predetermined position. A printer operation switch 54 that is a switch member that can generate an instruction signal and is mounted on a circuit unit (not shown) of the printer 60, and various types of setting information regarding the printer 60 are stored in advance in a nonvolatile manner. A memory 53, an AC adapter 59 which is a relay unit for supplying electric power from an external power source to the printer 60, and this A
A power supply terminal 56 that is a terminal for connecting the C adapter 59 to the printer 60, and a voltage compatible with a circuit unit (not shown) of the printer 60 that receives power supplied from the AC adapter 59 via the power supply terminal 56. Printer power circuit 55 for transmitting power to the circuit unit, a fan 26 for discharging the heat generated inside during the operation of the printer 60 to the outside to cool the inside of the apparatus, and this fan 2
It is composed of a fan motor 27 that rotationally drives 6 and a fan motor drive circuit 28 that drives and controls the fan motor 27.

The microcomputer 22 receives an instruction signal, image data and the like transmitted from the digital camera 10 via the connection terminals 57 and 58, and controls the printing operation of the printer 60 based on this. In addition,
Printer 6 applied to the printing system of the present embodiment
No. 0 cannot execute the print operation by itself, and is designed to operate in a form coupled with the digital camera 10 described above.

Further, the microcomputer 22 monitors various instruction signals and the like corresponding to the plurality of printer operation switches 54, and controls the drive circuits and the like corresponding to the operations performed by the user. There is.

Here, the printer operation switch 54 is composed of a plurality of operation switches as described above, and for example, the print start switch for instructing to start the print operation and the opening / closing (on / off) of the power source of the printer 60. ) It is configured to include a power switch for giving an instruction.

The operation members for operating the operation switch 54 composed of a plurality of these switches are separately provided at predetermined positions on the exterior member (not shown) of the printer 60, and the digital camera 10 and the printer 60 are provided. Is operated by the user in the state where is connected.

That is, when the user operates a predetermined operation member of the printer 60, a corresponding instruction signal is generated from the printer operation switch 54, and in response to this, the microcomputer 22 performs each corresponding control. Is configured. Then, by this, it is possible to execute the print operation for the image desired by the user.

Further, the microcomputer 22 determines the position of the thermal head 38 by controlling the head position control motor 41 via the head motor drive circuit 42 based on the output of the head position sensor 43. .

Further, the microcomputer 22 uses the output of the sheet position sensor 51 to drive the carry motor drive circuit 5.
0 to control the transport motor 49 to control the print paper 46.
Is determined in the moving direction.

Then, the microcomputer 22 monitors the output of the ribbon movement detection sensor 35 to detect whether or not the winding operation of the ink ribbon 33 is correctly executed.

That is, the microcomputer 22 detects the output of the ribbon movement detection sensor 35 arranged at a position facing the slitted disk 34 that rotates in conjunction with the movement of the ink ribbon 33, and thereby the disk with slits. 34
The amount of rotation of the ink ribbon 33 is detected and the winding operation of the ink ribbon 33 can be monitored.

The non-volatile memory 53 includes the printer 60.
Predetermined information and the like that should always be stored even when the power supply to the power supply is cut off is stored. The information includes, for example, control parameters indicating the history of control by the printer 60, print parameters indicating the characteristics of the printer 60, and the like.

Therefore, the nonvolatile memory 53 is an electrically rewritable ROM, which is an EEPROM (Electri
cally Erasable Programmable Lead-Only Memor
y) ・ FeRAM (Ferroelectri) which is a ferroelectric memory
c Random Access Memory (SRAM) with battery backup function (Static Random Access Memory)
And the like.

The carry motor 49 takes out (carries out) the print paper 46 from the paper tray 45 (paper loading unit), and prints the print paper 46 at a predetermined print start position, that is, the thermal head 38 (print head unit). A paper feeding operation which is a preparatory transportation operation for moving (transporting) to a position facing the sheet, or a printing paper transportation operation for moving the printing paper 46 in a predetermined direction at a predetermined speed when the printing operation is performed, that is, a thermal operation. In order to perform a predetermined print operation by the head 38, a transport operation for causing a relative change between the print paper 46 and the thermal head 38, and discharging the print paper 46 to the outside of the printer 60 at the end of the print operation. A part that constitutes a part of the print sheet conveying means that contributes to the print sheet conveying operation such as the sheet discharging operation. It is.

The print sheet carrying means in the printer 60 is composed of the carrying motor 49, the carrying motor drive circuit 50, the grip roller 47, the pinch roller 48 and the like.

The ink ribbon 33 housed in the ribbon case 32 is a transfer film coated with dyes (Y (yellow), M (magenta), and C (cyan) colors) that are thermally transferred to the print paper 46. It is composed of a transfer film or the like for forming a protective layer.

On each of the films (Y, M, C, protective layer) of the ink ribbon 33, a mark having a predetermined shape for detection is formed. The ribbon position detection sensor 36 detects the position of each film of the ink ribbon 33 by detecting this mark.

The printer power supply circuit 55 is connected to the AC adapter 59 via the power supply terminal 56, as described above, so that the printer power supply circuit 55 can be supplied from the external power supply.

The printer power supply circuit 55 is electrically connected to the power supply line (not shown) of the circuit unit inside the printer 60. Accordingly, the electric power from the external power supply is supplied to the printer power supply circuit 55 through the AC adapter 59 and the power supply terminal 56, and the printer power supply circuit 55 performs predetermined voltage conversion and then transmits the power to the circuit unit. It has become so.

The SDRAM 24 is a semiconductor element (memory) that receives data transferred from the digital camera 10 side and temporarily records the data, as will be described later.
It is composed by.

The SRAM 24 and the thermal head control circuit 25 are electrically connected to the microcomputer 22 by the external bus line 23.

The operation of the print system of the present embodiment having the above-described structure will be described below. FIG. 2 is a flowchart for explaining the outline of the operation of the print system of this embodiment, and shows the operation of the DSC controller 13 on the digital camera side and the operation of the microcomputer 22 on the printer side by side.

Further, FIGS. 3 and 4 to 7 are views showing the outline of the print processing by the print system of the present embodiment. Among these, FIG. 3 is a timing chart showing an outline of the print processing executed in the print system of the present embodiment. Further, FIGS. 4 to 7 are flowcharts showing details of the print processing by the present print system. 3 to 7, the processing on the digital camera side and the processing on the printer side are also shown to show the operation timings of both devices.

First, the outline of the operation of the printing system of this embodiment will be described below with reference to FIG.

In FIG. 2, D of the digital camera 10
The operation of the SC controller 13 is shown by steps S1 to S17, and the operation of the microcomputer 22 of the printer 60 is shown by steps S101 to S107.

First, the flow of operation of the DSC controller 13 of the digital camera 10 will be described below.

When the power button (not shown) of the digital camera 10 is operated by the user of this printing system, a predetermined instruction signal is generated from the power switch of the camera operation switches 14. In response to this, DS
The C controller 13 switches the power supply state of the digital camera 10 to the open (ON) state. As a result, the digital camera 10 is activated.

In this case, the DSC controller 1
3, first, in step S1, executes a predetermined initial setting operation to be performed at the time of startup. After that, step S
Proceed to the process of 2.

In step S2, the DSC controller 13 instructs the printer 60 of the digital camera 10 to operate.
Is connected by using a predetermined means, that is, whether the connection terminal 57 on the digital camera 10 side and the connection terminal 58 on the printer 60 side are connected.

Here, as the connection inspection performed by the DSC controller 13, for example, it is confirmed whether or not the USB host controller 19 and the USB device controller 22a are in a communicable state, and the printer power supply circuit 55 outputs An output is provided from a detecting means for checking whether or not electric power is being transmitted to the camera power supply circuit 21 or for separately detecting whether or not the connection terminals 57 and 58 are connected. As a means for confirming the electrical connection state of a plurality of devices such as for confirming, the means generally used conventionally is applied.

In step S2, when the DSC controller 13 confirms that the digital camera 10 and the printer 60 are connected, the process proceeds to the next step S3.

On the other hand, if it is determined that the two devices are not in the connected state, the process proceeds to step S17. And
In this step S17, the DSC controller 13
Performs an operation as a normal digital camera according to a predetermined instruction signal.

In the above step S2, it is confirmed that the digital camera 10 and the printer 60 are in the connected state, and when the process proceeds to the next step S3, in this step S3, the DSC controller 13 determines the USB host controller. 19 and the like are monitored to execute a connection preparation operation for establishing a predetermined communication means using the USB standard. Then, the process proceeds to the next step S4.

In step S4, the DSC controller 13 initializes the USB host controller 19. At the same time, the DSC controller 13
The USB device controller 22a is connected to the microcomputer 22 on the printer 60 side connected via the SB host controller 19 and the connection terminals 57 and 58.
An instruction signal to the effect that the initial setting of will be transmitted.

In response to this, the microcomputer 22 of the printer 60 initializes the USB device controller 22a (see step S104). afterwards,
Then, the process proceeds to step S5.

Incidentally, this step S4 and step S1
The initial setting of the USB host controller 19 and the USB device controller 22a performed in 04 is the initial setting required to enable communication using the USB between the digital camera 10 and the printer 60. This is a normal procedure performed in a general USB device.

Subsequently, in step S5, the DSC controller 13 informs the current state of the printer 60 (hereinafter referred to as printer state information), for example, the state of the printer operation switch 54 (print start switch or the like) of the printer 60 or the like. An instruction signal requesting transmission of various information such as error information due to paper jam or the like is periodically transmitted to the microcomputer 22 of the printer 60.

In response to this, the microcomputer 2 concerned
2 transmits the requested predetermined printer status information to the DSC controller 13 (see step S106).

Then, the DSC controller 13 receives (obtains) the printer status information transmitted from the microcomputer 22 and temporarily stores it in its own internal storage area (not shown). After that, step S
Proceed to the process of 6.

In step S6, the DSC controller 13 causes the camera operation switch 1 of the digital camera 10 to operate.
It is confirmed whether or not a predetermined instruction signal from the frame number selection switch (SW) of 4 is generated. In this case, when the DSC controller 13 confirms the instruction signal indicating that the frame number selection switch has been operated, the process proceeds to the next step S7. If the instruction signal is not confirmed, the process proceeds to step S11.

The frame number selection switch is an operation member operated when selecting image data representing a desired image from a plurality of image data acquired by the digital camera 10 and recorded in the recording medium 18. The corresponding switch is included in the camera operation switch 14.

That is, the user operates the operation member for selecting the frame number (selecting the number of frames) to display the image data representing the desired image from the plurality of image data recorded in the recording medium 18. It can be arbitrarily selected, and the image based on the image data selected by this operation is displayed on the display screen of the liquid crystal monitor 15. Here, since the image data corresponding to the image displayed on the display screen of the liquid crystal monitor 15 is the target image of the printing operation, the image data corresponding to this display image will be referred to as print target image data hereinafter.

Next, in step S7, the DSC controller 13 performs an increase / decrease process for the number of frames. afterwards,
The process proceeds to the next step S8.

The frame number increase / decrease process executed here is a process performed based on the instruction signal from the frame number selection switch described above, and is a process for changing the currently set frame number (frame number). Is.

In step S8, the DSC controller 13 executes the image data reading operation for reading the image data corresponding to the set number of frames (frame number) from the recording medium 18. Then, the process proceeds to step S9.

The recording medium 18 contains so-called J
Since the image data in the PEG format is recorded, the image data read in this step S8 is J
It will be in PEG format.

In step S9, the DSC controller 13 reads the JPEG read in step S8.
Predetermined signal processing is applied to the image data of the format.

The signal processing performed here is, for example, J
These are various kinds of signal processing such as decoding processing of image data in the PEG format, image size conversion processing, processing of converting into an image signal of a format most suitable for display using the liquid crystal monitor 15.

Then, the image signal which has been subjected to the signal processing is transmitted to the liquid crystal monitor 15, and then proceeds to the processing of the next step S10.

In step S10, the liquid crystal monitor 15
Receives an image signal transmitted from the DSC controller 13 and performs a display process of displaying a corresponding image on its own display screen. Then, the process proceeds to step S11.

Next, in step S11, the DSC controller 13 confirms the printer status information acquired in step S5, and the printer operation switch 5
It is confirmed whether or not a predetermined instruction signal is generated from the print start switch (SW) out of 4. Here, when it is confirmed that the predetermined instruction signal from the print start switch is generated, the process proceeds to the next step S12. On the other hand, when it is confirmed from the print start switch that the predetermined instruction signal is not generated, the process returns to the above-described step S5 and the subsequent operations are repeated.

In step S12, the DSC controller 13 confirms the status of the printer 60 based on the printer status information acquired in step S5. Here, it is confirmed whether or not the printer 60 is in a print operation executable state. In this case, if it is confirmed that the printer operation can be executed,
Then, the process proceeds to the print process in step S13. The details of this print processing will be described later (FIGS. 3 to 7).
reference). Then, after the printing process is completed, the process proceeds to the next step S14.

In step S14, the DSC controller 13 confirms whether or not the print processing in step S13 described above has been normally completed. Here, when it is confirmed that the print processing is normally completed, the process returns to the above-described step S5, and the subsequent processing is repeated for the next print processing.

If it is confirmed that the printing process has not ended normally, the process proceeds to the next step S15, in which a predetermined error message is displayed on the liquid crystal monitor 15, for example. Display using a screen. After that, the process returns to step S5,
The subsequent operations are repeated.

On the other hand, when it is confirmed in step S12 that the printer 60 is in a state in which it cannot execute the printing operation, the process proceeds to step S16, and in step S16, a predetermined warning (warning) is issued.
The message is displayed using, for example, the display screen of the liquid crystal monitor 15. Then, the process returns to step S5 and the subsequent operations are repeated.

Next, the flow of operation of the microcomputer 22 of the printer 60 will be described below.

A user of this printing system operates a power button or the like among the operation members of the printer 60, so that a predetermined instruction signal is generated from a power switch (not shown) of the printer operation switches 54. . In response to this, the microcomputer 22 controls the printer power supply circuit 55 and the like. As a result, the power state of the printer 60 is switched to the on (open) state and the printer 60 is activated.

In this case, the microcomputer 2
First, in step S101, the device 2 executes a predetermined initial setting operation that should be performed at the time of startup. Then, the process proceeds to step S102.

In step S102, the microcomputer 22 initializes the printer power supply circuit 55 and then proceeds to step S103.

In step S103, the microcomputer 22 is on standby until the USB connection with the digital camera 10 is secured.

That is, when the USB host controller 19 of the digital camera 10 is initialized in step S4 and the USB connection is secured, the US
The B host controller 19 sends a predetermined instruction signal, that is, U
An instruction signal for instructing the initial setting of the SB device controller 22a is transmitted.

When the microcomputer 22 receives the instruction signal via the USB device controller 22a provided inside itself, the microcomputer 22 performs the above-mentioned step S10.
The standby state in 3 is released, and the next step S104
In step S104, the microcomputer 22 determines that the USB device controller 2
2a initialization processing is performed. Then, step S10
Proceed to the process of 5.

In step S105, the microcomputer 22 creates printer status information based on signals from the printer operation switch 54 of the printer 60 and various sensors, and stores it in its own internal memory (not shown). Etc. for temporary storage. Then, it becomes a standby state.

Next, in step S5, when the instruction signal requesting the printer status information is transmitted from the digital camera 10 side, the microcomputer 22
Cancels the standby state in step S105 described above, and proceeds to the processing in step S106.

Then, in step S106, the microcomputer 22 transmits the printer status information created in step S105 to the digital camera 10 side. Then, it becomes a standby state.

As described above, in this print system, the USB is used as a communication means between the digital camera 10 and the printer 60. Therefore, even if the state of the printer operation switch 54 on the printer 60 side changes, the information about the state change (switch state information) is not immediately transmitted to the digital camera 10 side at the time of the change. Rather, only when a request for printer status information is received by the USB host controller 19 on the digital camera 10 side,
It is adapted to be transmitted to the side of the digital camera 10.

As described above, when the printer 60 is in the standby state, the print processing on the digital camera 10 side is
When executed in step S13 described above, the DSC controller 13 of the digital camera 10 sends an instruction signal for executing a print process to the microcomputer 22 of the printer 60.
In response to this, the microcomputer 22 causes the step S
At 107, the printing process of the printer 60 is started. The details of this printing process will be described later (see FIGS. 3 to 7). Then, when the execution of the printing process is completed, the process returns to the above step S105, and the subsequent processes are repeated.

By the way, in the above step S2,
It is determined that the digital camera 10 and the printer 60 are not in the connected state, and the process proceeds to the next step S17.
Then, in step S17, the digital camera 10 (the DSC controller 13 thereof) operates as an image input device.

The operation of the digital camera 10 in this case will be briefly described as follows.

The digital camera 10 forming a part of the printing system of the present embodiment operates independently to acquire image data according to a desired subject image when the connection state with the printer 60 is released. You can do it.

First, the outline of the operation when image data is acquired using the digital camera 10 is as follows.

When the power source of the digital camera 10 is in the open (on) state and its operation mode is set to the photographing mode, the photographing is performed on the image pickup surface of the CCD (not shown) of the image pickup unit 12. A subject image formed by the optical system 11 is formed.

In this state, the present digital camera 10
When the user operates the release button, the release switch of the camera operation switches 14 generates a predetermined release instruction signal.

When the RISC controller 13f provided inside the DSC controller 13 receives the release instruction signal, the RISC controller 13f controls the image pickup unit 12 via the CCD interface circuit 13a, and the image signal of the subject image photoelectrically converted by the CCD. Take in. This image signal is converted into image data of a predetermined form and then temporarily stored in a predetermined area of the SDRAM 16 via the memory interface circuit 13b.

At the same time, the RISC controller 13
f controls the image size conversion circuit 13d to perform a predetermined signal processing on the acquired image data. The signal processing performed here is a predetermined signal processing for generating image data in a form in which an image based on the acquired image data can be optimally displayed on the display screen of the liquid crystal monitor 15, and for example, the display of the liquid crystal monitor 15 is performed. The processing is, for example, processing for converting the image data to match the resolution.

The signal processing for generating the display image data is the same as the processing applied to the conventional general digital camera or the like (details of the processing will be given). The explanation is omitted).

The image data thus generated is sent to the video encoder circuit 13c, and then sent to the liquid crystal monitor 15 via this. Then, the liquid crystal monitor 1
The subject image that has been photographed is displayed on the display screen 5.

Further, the image compression / expansion circuit 13e executes a predetermined coded signal processing so that the obtained image data becomes image data of the optimum form for recording on the recording medium 18, for example, JPEG data.

The JPEG image data thus generated is recorded on a recording medium such as SSFDC (registered trademark; Solid State) via the memory interface circuit 13b.
A predetermined area of the recording medium 18 including a nonvolatile semiconductor memory such as a NAND type small flash memory card such as a floppy disk card or a CF (CompactFlash; Compact Flash (registered trademark)) card, or other magnetic or optical recording medium. Is recorded in a predetermined format.

The above is the case when the digital camera 10 operates independently to acquire image data corresponding to a desired subject image.

Next, the operation when the digital camera and the printer constituting the print system of this embodiment are linked to execute the print processing will be described below with reference to FIGS.

The digital camera 10 and the printer 60 in the print system of the present embodiment are constructed so that they can be functionally connected by the USB connection as described above, and print processing is executed using this print system. At this time, the DSC controller 13 of the digital camera 10 and the microcomputer 22 of the printer 60 work together.

In this print system,
By performing control such that a part of various processes executed on the digital camera 10 side and a part of each process executed on the printer 60 side include a part that progresses in parallel in time, It is devised so as to improve the processing speed related to the printing operation by the system.

FIG. 3 is a timing chart schematically showing the flow of print processing executed by the digital camera 10 and the printer 60 in this print system. It should be noted that the numbers attached to the reference symbol S in FIG. 3 are numbers corresponding to the step numbers shown in FIGS. 4 to 7 (detailed description will be given later). That is, each process shown in FIG. 3 corresponds to the process step indicated by the symbol S among the process steps in FIGS. 4 to 7.

In order to execute the print processing in the print system of the present embodiment, first, the user uses the digital camera 10 and becomes the target of the print processing from a plurality of image data recorded on the recording medium 18. An operation of selecting image data by a predetermined means is performed.
When this operation is performed, the image data corresponding to the image desired to be printed is read from the recording medium 18 (that is, extracted), and the digital camera 10 is operated.
It is temporarily recorded in the SDRAM 16 or the like inside.

In this way, when the image data to be printed (the image data to be printed) is selected and extracted, the image data is the SDR of the digital camera 10.
At the same time as being temporarily stored in the AM 16 or the like, a corresponding image is displayed on the display screen of the liquid crystal monitor 15 (see steps S6 to S10 described above).

In this state, when the user gives an instruction to start printing (step S11), it is confirmed that the present printing system is in a printable state (step S12), and then the print processing of step S13 is performed. Transition.

The DSC controller 13 of the digital camera 10 controls the image size conversion circuit 13d for the extracted print target image data to execute the pixel number conversion process ((I) in FIG. 3; step in FIG. 4). Refer to the processing of S32.) At this time, the printer 60 is in a standby state.

Next, the DSC controller 13 applies a predetermined color to the print target image data that has been subjected to the above-described pixel number conversion process to generate print data of an optimum form for executing the print process. The conversion processing operation is sequentially performed. This color conversion processing operation is processing for generating Y, M, and C color image data based on the print target image data.

In other words, the DSC of the digital camera 10
The color conversion processing operation by the controller 13 is performed by the data (YC) of each predetermined color component regarding the image to be printed.
r.Cb image data of each color) and print data (Y.M.
This is a processing operation for sequentially converting each color image data of C).

The DSC controller 13 first performs a color conversion process (Y) for generating Y (yellow) image data.
Is executed (see FIG. 3 (II); the process of step S34 of FIG. 4). As a result, the generated Y image data is SDRA.
It is temporarily recorded in M16 or the like.

In parallel with this, the printer 60 receives the instruction signal from the DSC controller 13 and executes a predetermined paper feeding operation. The paper feeding operation performed here is
This is processing for pulling out the print paper 46 from the paper tray 45 and moving it to a predetermined print start position (see FIG.
I); refer to the process of step S112 in FIG. 4).

As described above, the printer 60 in the present print system can perform both the color conversion process (Y) on the digital camera 10 side and the carrying operation (paper feeding operation here) on the printer 60 side. The respective control means (the DSC controller 13 and the microcomputer 22) cooperate with each other so that the control means (the DSC controller 13 and the microcomputer 22) are carried out at such a timing as to include the portions which proceed in parallel in time.

When the color conversion process (Y) is completed on the digital camera 10 side, the DSC controller 13 subsequently transfers the Y image data generated by the process to the printer 60 side. The operation (hereinafter, referred to as data transfer processing) (Y) is executed. (Fig. 3
(III); refer to the processing of step S41 in FIG. 4).

That is, the data transfer process (Y) performed here is a process for sequentially transferring the predetermined Y image data processed by the color conversion process (Y) to the printer 60 side.

In response to this, the printer 60 receives the instruction signal from the DSC controller 13 and performs the Y image data receiving process, while executing the Y image printing operation based on the Y image data. (Fig. 3 (II
I); see the processing of step S115 in FIG. 4).

In the digital camera 10, when the above data transfer process (Y) is completed, the DSC controller 1
3 subsequently executes color conversion processing (M) for generating M (magenta) image data (FIG. 3 (IV); see the processing of step S48 in FIG. 5). As a result, the generated M image data is temporarily recorded in the SDRAM 16 or the like.

In parallel with this, the printer 60 side receives the instruction signal from the DSC controller 13 and executes a predetermined sheet conveying operation. The paper transport operation performed here is a process of transporting the print paper 46 on which the Y image has been printed to a predetermined print start position (see FIG.
V); refer to the processing of step S118 in FIG. 5).

As described above, in the printer 60 of the present print system, both the color conversion processing (M) on the digital camera 10 side and the paper transport operation on the printer 60 side are performed in parallel in time. The respective control means (DSC controller 13 and microcomputer 22) cooperate with each other so as to be performed at such a timing as to include the progressing portion.

When the color conversion process (M) is completed on the digital camera 10 side, the DSC controller 13 subsequently transfers the M image data generated by the process to the printer 60 side. Processing (M)
To execute. (See FIG. 3 (V); processing of step S55 of FIG. 5).

That is, the data transfer process (M) performed here is a process of sequentially transferring the predetermined M image data processed by the above-mentioned color conversion process (M) to the printer 60 side.

In response to this, the printer 60 receives the instruction signal from the DSC controller 13 and performs the M image data receiving process, while executing the M image printing operation based on the M image data. (Fig. 3 (V);
Refer to the processing of step S121 in FIG. 5).

In the digital camera 10, when the above data transfer process (M) is completed, the DSC controller 1
3 subsequently executes color conversion processing (C) for generating C (cyan) image data (FIG. 3 (VI); see the processing of step S62 in FIG. 5). As a result, the generated C image data is temporarily recorded in the SDRAM 16 or the like.

In parallel with this, the printer 60 side receives the instruction signal from the DSC controller 13 and executes a predetermined sheet conveying operation. The paper transport operation performed here is a process of transporting the print paper 46 on which the Y and M images have been superimposed to a predetermined print start position (FIG. 3 (VI); FIG. 5). Step S
(See processing of 124).

As described above, in the printer 60 of the present print system, both the color conversion processing (C) on the digital camera 10 side and the sheet conveying operation on the printer 60 side are performed in parallel in time. The respective control means (DSC controller 13 and microcomputer 22) cooperate with each other so as to be performed at such a timing as to include the progressing portion.

When the color conversion process (C) is completed on the digital camera 10 side, the data transfer process (C) for transferring the C image data generated by the process to the printer 60 side is subsequently performed. To be executed. (Fig. 3 (VI
I); See the processing of step S69 in FIG. 6).

That is, the data transfer process (C) performed here is a process of sequentially transferring the predetermined C image data processed by the color conversion process (C) to the printer 60 side. Here, the digital camera 10 is in a standby state.

In response to this, the printer 60 side
While receiving the instruction signal of the controller 13 and receiving the C image data, the printing operation of the C image based on the C image data is executed. (See FIG. 3 (VII); processing of step S127 in FIG. 6).

At the time when the data transfer process (C) from the digital camera 10 is completed, if there is no image data to be processed without delay, the digital camera 10 concerned.
However, if it is set to execute the print operation for another image subsequently, the digital camera 10 does not enter the standby state, and the next print target The pixel number conversion process and the color conversion process (Y) for the image data are executed ((I) ((I
The same process as I)). After that, the same processing is repeated.

Also in this case (when the process for another image is continuously performed), when the color conversion process (Y) is being executed on the digital camera 10 side, the printer is temporally parallel to the color conversion process (Y). A sheet carrying operation 60 (processing of FIG. 3 (II)) is executed. Therefore, each control means (the DSC controller 13 and the microcomputer 22) is controlled so that both the color conversion process (Y) and the paper transporting operation are performed at a timing including a portion that progresses in parallel in time. Collaborate.

When the C image printing operation (see FIG. 3 (VII)) is completed as described above, the printer 60 causes the DSC
Upon receipt of the instruction signal from the controller 13, a predetermined paper transport operation is executed. The paper transport operation performed here is Y.
This is a process of transporting the print paper 46 on which the M and C images have been printed to a predetermined print start position (FIG. 3 (VIII); step S130 in FIG. 6).
Processing)).

Subsequently, the printer 60 receives the instruction signal from the DSC controller 13 and executes the protective film forming operation, that is, the overcoat operation (see FIG. 3 (IX); step S131 in FIG. 6).

When this overcoat operation is completed, a paper discharge operation for discharging the print paper on which the desired image is printed to the outside of the printer 60 is executed (FIG. 3).
(X); refer to the processing of step S132 in FIG. 6). When this paper discharge operation ends, a series of print processing ends.

Details of the flow of the printing process in the printing system executed in this way will be described below with reference to FIGS. 4 to 7.

As described above, when it is confirmed in step S12 in FIG. 2 that both the digital camera 10 and the printer 60 are in the printable state, the DSC controller 13 and the printer 6 of the digital camera 10 concerned.
The microcomputer 22 of 0 executes the print processing of step S13 and step S107.

In this way, when the printing process is started, the DSC controller 13 of the digital camera 10 sends an instruction signal requesting print parameter information to the microcomputer 2 of the printer 60 in step S31 of FIG.
2 is transmitted periodically.

Here, the print parameter information is information unique to the printer 60, such as print resolution and print head characteristic data. The print parameter information is information stored in advance in the non-volatile memory 53 of the printer 60, for example.

On the printer 60 side, upon receiving this instruction signal, in step S111, the microcomputer 22 reads out predetermined print parameter information from the non-volatile memory 53 or the like and sends it to the digital camera 10 side. After that, the printer 60 enters the standby state.

On the side of the digital camera 10, by receiving this, the print parameter information of the printer 60 is acquired. Then, the process proceeds to step S32.

In step S32, the DSC controller 13 reads out the print target image data stored in the SDRAM 16 or the like after being selected and extracted in steps S6 to S10 in FIG. 2, and performs image size conversion on this image data. The circuit 13d is controlled to execute the pixel number conversion processing (see FIG. 3 (I)). After that, step S
Go to step 33.

In step S33, the DSC controller 13 sends to the microcomputer 22 an instruction signal (command; command) indicating that the paper feeding operation should be executed. Then, the process proceeds to step S34.

Next, in step S34, the DSC controller 13 controls the RISC controller 13f to execute a color conversion process (Y) for generating Y (yellow) image data (see FIG. 3 (II)). . This color conversion process (Y) is the print target image data (YCrCb) after the pixel number conversion process in step S34 described above.
Data).

The Y image data generated here is
It is temporarily stored in the internal memory of the DSC controller 13 or the like (having a capacity capable of storing one screen of image data). When this color conversion process (Y) is completed, the process proceeds to the next step S35.

Here, while the DSC controller 13 of the digital camera 10 is executing the color conversion process (Y), the process of the next step S112 is executed on the printer 60 side in parallel with the time. (See FIG. 3 (II)).

That is, in step S112, the microcomputer 22 first receives the sheet feeding operation instruction signal (command; command) transmitted by the DSC controller 13 in the above-described step S33.

In response to this, the microcomputer 22
Controls the transport motor 49 via the transport motor drive circuit 50 to rotate the grip roller 47 in a predetermined direction. As a result, the print paper 46
Is pulled out from the paper tray 45 and fed to a predetermined print start position.

At the same time, the microcomputer 22
Performs a predetermined error detection operation. The error detection operation executed here is an operation of monitoring whether the paper tray detection switch 44, the paper position sensor 51, or the like, to check whether any operation failure (error) has occurred.

When the paper feeding operation and the error detecting operation on the printer 60 side are completed in this way, the printer 60 enters the standby state.

On the side of the digital camera 10, when the process of step S34, that is, the color conversion process (Y) is completed, the process proceeds to step S35 as described above.

In step S35, the DSC controller 13 periodically requests the microcomputer 22 to transmit an end code indicating that the paper feeding operation of the printer 60 has ended.

At this time, if the printer 60 is in the standby state after completing the paper feeding operation, the microcomputer 22
After receiving the end code request from the DSC controller 13, the DSC controller 13 outputs the end code of the paper feeding operation.
Send to. After that, the printer 60 enters the standby state.

When the DSC controller 13 of the digital camera 10 acquires this end code, it proceeds to the processing of the next step S36.

Incidentally, in step S112 described above,
Although the error detection operation is executed, when an error is detected in this case, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

In step S36, the DSC controller 13 confirms whether or not the paper feeding operation of the printer 60 has been completed normally. This confirmation is performed based on the end code received in step S35 described above. That is, the end code includes information about the result of the error detection operation executed in step S112 described above. Here, if it is confirmed that the operation of the printer 60 is normally completed without any operation failure (error) occurring, the process proceeds to the next step S37.

Further, when some kind of malfunction such as error information such as paper jam (jam) is confirmed, the process proceeds to step S84 of FIG.

Then, in this step S84, D
The SC controller 13 records and sets error information corresponding to the part of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

When the normal end is confirmed in the process of step S36, and the process proceeds to step S37, the DSC controller 13 drives the head down to press the thermal head 38 against the print paper 46 in step S37. An instruction signal (command; command) to execute is sent to the microcomputer 22. Then, the process proceeds to step S38.

In response to this, on the printer 60 side, in step S113, the microcomputer 22
A head-down drive instruction signal (command; command) is received from the DSC controller 13.

Subsequently, the microcomputer 22 drives and controls the head position control motor 41 via the thermal head control circuit 25 to move the head arm 39 having the thermal head 38 from a predetermined head-up position to a predetermined head-down position. Move to. Driving to the head-down position is an operation of bringing the ink ribbon 33 and the print paper 46 into pressure contact with each other.

The head driving operation performed here is in a form corresponding to the data transferred from the digital camera 10, and the print head section (the thermal head 3) of its own is used.
8) is a series of operations for driving the printing operation.

At the same time, the microcomputer 22
Performs a predetermined error detection operation. The error detection operation executed here is performed by the temperature sensor 37, the ribbon position detection sensor 36, the head position sensor 43, and the sheet position sensor 5.
By monitoring 1 etc., it is an operation for confirming whether or not any malfunction (error) has occurred.

In this way, when the head-down drive and error detection operation of the thermal head 38 on the printer 60 side is completed, the printer 60 enters the standby state.

On the digital camera 10 side, after the above-described processing of step S37, the processing of step S38 is continuously executed. In step S38, the DSC controller 13 periodically requests the microcomputer 22 to transmit an end code indicating that the head-down drive operation in step S112 is completed.

If the printer 60 completes the head-down drive operation at this time and is in the standby state, the microcomputer 22 sends a predetermined end code to the DSC controller 13 when receiving the end code request from the DSC controller 13. To do. After that, the printer 60 enters the standby state.

On the side of the digital camera 10, the DSC controller 13 receives this and obtains the end code, and then proceeds to the processing of the next step S39.

In step S113 described above,
Although the error detection operation is executed, even in this case, when an error is detected, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

In step S39, the DSC controller 13 confirms whether or not the head-down drive operation of the printer 60 has been completed normally. This confirmation is performed based on the end code received in step S38 described above. That is, the exit code is
This includes information about the result of the error detection operation executed in step S113 described above.

If it is confirmed that the operation of the printer 60 has ended normally without any malfunction (error) occurring, the process proceeds to the next step S40.

If any error information such as a malfunction is confirmed, the process proceeds to step S84 in FIG.

Then, in this step S84, D
The SC controller 13 records and sets error information corresponding to the part of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

When the normal end is confirmed in the process of step S39 and the process proceeds to step S40, the DSC controller 13 in this step S40 issues an instruction signal (command; command) to instruct the start of the printing operation. Is transmitted to the microcomputer 22.
Then, the process proceeds to step S41.

In response to this, on the printer 60 side, the microcomputer 22 sets the D
An instruction signal (command; command) for starting a print operation is received from the SC controller 13.

As a result, the microcomputer 22
By controlling the drive of the transport motor 49 via the transport motor drive circuit 50, preparations for rotationally driving the grip roller 47 in a predetermined direction, that is, preparation for starting the transport operation of the print paper 46 are prepared.

At the same time, the microcomputer 22 controls the drive of the ribbon motor 30 via the ribbon motor drive circuit 31 to prepare to start the winding operation of the ink ribbon 33.

Also, on the digital camera 10 side, in step S41, the DSC controller 13 decomposes the Y image data generated in the above-described processing of step S34 for each line, and the data for each line is sequentially printed by the printer 6.
A data transfer process for transferring the data to the zero microcomputer 22 is executed (see FIG. 3 (III)). Then, when all the data transfer processing of the Y image data is completed, the processing proceeds to the next step S42.

Subsequently, in step S42, the DSC controller 13 periodically requests the microcomputer 22 to transmit an end code indicating that the print operation has ended, and when the end code is acquired, the next step S43. Go to processing.

On the other hand, on the printer 60 side, step S
At 115, the microcomputer 22 causes the DSC to
When the transfer data (data for one line of the Y image data) from the controller 13 is received, this is transferred to the thermal head control circuit 25 to start the printing operation (see FIG. 3 (III)). .

In this case, the thermal head control circuit 25 converts the received image data for one line into a drive signal for the heater in the thermal head 38, and controls the drive of the thermal head 38 based on this. As a result, the printing operation for one line corresponding to the received data for one line is executed. At the same time, the microcomputer 22 determines that the ribbon motor drive circuit 31
The ribbon motor 30 is controlled to drive the ink ribbon 33 in the winding operation in synchronization with the above-described printing operation.

When the printing operation for one line is executed in this way, the microcomputer 22 then drives the carry motor 49 via the carry motor drive circuit 50 to rotate the grip roller 47, and thereby the print paper 46. A carrying operation for carrying a predetermined amount (for one line) is executed. Then, this series of operations is repeated for each line, and when all the Y image printing operations based on the Y image data are completed, the process proceeds to the next step S116.

As described above, in the present embodiment, a series of processes of step S41 and step S115, that is, DS
The data transfer processing by the C controller 13 and the data reception / printing operation / paper transporting operation by the microcomputer 22 are controlled to execute the printing operation line by line in synchronization with the data transfer line by line. ing. Then, by sequentially repeating the data processing for one line, the print output of the Y image for one screen is finally obtained.

In this case, the synchronization of the data transfer process for one line and the print operation and the paper transport operation for one line is necessary for completing the print operation and the paper transport operation for one line, for example. In consideration of the time, the data transfer processing is performed at a predetermined time interval, or the data transfer is performed by receiving the data when the microcomputer 22 side receiving the data can receive it and rejecting it when it cannot receive the data. The data transmission / reception may be controlled so that the processing waits.

Further, in step S115 described above, the microcomputer 22 periodically executes an error detecting operation in parallel during execution of a series of processes. The error detection operation performed here includes some mechanical malfunction such as paper jam (jam) (by the paper position sensor 51), temperature abnormality of the thermal head 38 (by the temperature sensor 37), and ribbon position abnormality of the ink ribbon 33. (By the ribbon position detection sensor 36), the thermal head 38 position abnormality (head position sensor 43), the print paper 46 position abnormality (paper position sensor 51), and the like.

When it is confirmed that the transfer processing of the Y image data is completed, the microcomputer 22 drives and controls the carry motor 49 through the carry motor drive circuit 50 to carry out the paper carrying operation in step S116. Stop. At the same time, the microcomputer 22
Is connected to the ribbon motor 3 via the ribbon motor drive circuit 31.
The drive control of 0 is performed to stop the winding operation of the ink ribbon 33. Then, in step S42 described above, D
In response to the end code request from the SC controller 13, after transmitting a predetermined end code to the DSC controller 13, the printer 60 is in a standby state. After that, the printer 60 enters the standby state.

As a means for confirming the end of the data transfer process, for example, information about the total number of lines of the image to be printed is included in the print parameter information in advance,
The microcomputer 22 may refer to this, or a code indicating that the image data is final (for example, End Of File) in the data of the final line of the transfer data.
And the like, and the microcomputer 22 confirms this to determine that the received data is the final data.

On the side of the digital camera 10, by acquiring the end code from the microcomputer 22, the process proceeds to the next step S43.

In step S115 described above,
Although the error detection operation is executed, even in this case, when an error is detected, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

Next, in step S43, the DSC controller 13 confirms whether or not the printing operation of the Y image based on the Y image data has been normally completed. This confirmation is performed based on the end code received in step S42 described above. That is, the end code includes information about the result of the error detection operation executed in step S115 described above.

If it is confirmed that the operation of the printer 60 has ended normally without any malfunction (error), the process proceeds to the next step S44.

Further, if some malfunction is detected, for example, error information such as paper jam (jam) is confirmed, the process proceeds to step S84 in FIG.

Then, in this step S84, D
The SC controller 13 records and sets error information corresponding to the part of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

In the process of step S43 described above, when the normal end is confirmed and the process proceeds to step S44, in step S44, the DSC controller 13
An instruction signal (command; command) indicating that head-up drive should be performed to separate the thermal head 38 from the print paper 46 is transmitted to the microcomputer 22. Then, the process proceeds to step S45.

In response to this, on the side of the printer 60, in step S117, the microcomputer 22
An instruction signal (command; command) for the head-up drive operation is received from the DSC controller 13.

Subsequently, the microcomputer 22 drives and controls the head position control motor 41 via the thermal head control circuit 25 to move the head arm 39 having the thermal head 38 from the head down position to the predetermined head up position. And move. Driving to the head-up position is an operation of separating the ink ribbon 33 and the print paper 46.

At the same time, the microcomputer 22
Performs a predetermined error detection operation. The error detection operation executed here is performed by the temperature sensor 37, the ribbon position detection sensor 36, the head position sensor 43, and the sheet position sensor 5.
By monitoring 1 etc., it is an operation for confirming whether or not any malfunction (error) has occurred.

When the head-up drive operation and the error detection operation of the thermal head 38 on the printer 60 side are completed in this way, the printer 60 enters the standby state.

On the digital camera 10 side, after the above-described processing of step S44, the processing of step S45 is continuously executed. In step S45, the DSC controller 13 periodically requests the microcomputer 22 to transmit an end code indicating that the head-up drive operation in step S117 is completed.

If the printer 60 completes the head-up drive operation at this time and is in the standby state, the microcomputer 22 receives the end code request from the DSC controller 13 and outputs a predetermined end code to the DSC controller 1.
Send to 3 After that, the printer 60 enters the standby state.

On the side of the digital camera 10, the DSC controller 13 receives this and obtains the end code, and then proceeds to the processing of the next step S46.

In step S117 described above,
Although the error detection operation is executed, even in this case, when an error is detected, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

At step S46, the DSC controller 13 confirms whether or not the head-up drive operation of the printer 60 has been normally completed. This confirmation is performed based on the end code received in step S45 described above. That is, the exit code is
This includes information about the result of the error detection operation executed in step S117 described above.

If it is confirmed that the operation of the printer 60 has ended normally without any malfunction (error), the process proceeds to step S47 in FIG.

If error information such as some malfunction is confirmed, the process proceeds to step S84 in FIG.

Then, in this step S84, D
The SC controller 13 records and sets error information corresponding to the part of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

In step S47 of FIG. 5, the DSC controller 13 directs the microcomputer 22 to send an instruction signal (command; command) indicating that the carrying operation for returning the print paper 46 to the predetermined start position should be executed. Send. Then, the process proceeds to step S48.

Next, in step S48, the DSC controller 13 controls the RISC controller 13f to execute color conversion processing (M) for generating M (magenta) image data (see FIG. 3 (IV)). . This color conversion process (M) is a process substantially similar to the process of step S34 described above, that is, the color conversion process (Y).
The processing is performed based on the print target image data (YCrCb data) after the pixel number conversion processing in the processing of 32. The M image data generated here is temporarily stored in the internal memory or the like of the DSC controller 13. When the color conversion process (M) is completed, the process proceeds to the next step S49.

While the DSC controller 13 of the digital camera 10 is executing the process of step S48 described above, that is, the color conversion process (M), the printer 60 executes the process of step S118 of FIG. Is executed (see FIG. 3 (IV)).

That is, in step S118, the microcomputer 22 first receives the transport operation instruction signal (command; command) transmitted by the DSC controller 13 in the process of step S47.

In response to this, the microcomputer 22
Controls the transport motor 49 via the transport motor drive circuit 50 to rotate the grip roller 47 in a predetermined direction. As a result, the print paper 46
Are conveyed in a predetermined direction and reset to a predetermined print start position.

At the same time, the microcomputer 22
Performs a predetermined error detection operation. The error detection operation executed here is an operation for monitoring whether the paper tray detection switch 44, the paper position sensor 51, or the like, to check whether any operation failure (error) has occurred.

When the paper carrying operation and the error detecting operation on the printer 60 side are completed in this way, the printer 6
0 goes into a standby state.

On the side of the digital camera 10, when the above-described processing of step S48, that is, the color conversion processing (M) is completed, the processing proceeds to step S49 as described above. The process of step S49 is exactly the same as the process of step S35 described above.

[0240] In step S49, the DSC controller 13 periodically requests the microcomputer 22 to transmit an end code indicating that the paper transport operation in the printer 60 has ended.

At this time, if the printer 60 completes the sheet conveying operation and is in the standby state, the microcomputer 22
When the end code request from the DSC controller 13 is received, the end code of the paper transport operation is transmitted to the DSC controller 13. After that, the printer 60 enters the standby state.

When the DSC controller 13 of the digital camera 10 acquires this end code, it proceeds to the processing of the next step S50.

Incidentally, in the above-mentioned step S118,
Although the error detection operation is executed, even in this case, when an error is detected, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

At step S50, the DSC controller 13 confirms whether or not the carrying operation of the printer 60 has been completed normally. This confirmation is performed based on the end code received in step S49 described above. That is, the end code includes information about the result of the error detection operation executed in step S118 described above.

If it is confirmed that the operation of the printer 60 has ended normally without any malfunction (error) occurring, the process proceeds to step S51.

Further, if some malfunction is detected, for example, error information such as paper jam (jam) is confirmed, the process proceeds to step S84 in FIG.

Then, in this step S84, D
The SC controller 13 records and sets error information corresponding to the part of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

When the normal end is confirmed in the process of the above step S50, the process proceeds to the step S51 as described above. The process of step S51 is exactly the same as the process of step S37 described above.

That is, in step S51, the DSC controller 13 transmits a head-down drive instruction signal to the microcomputer 22, and in step S52.
Go to processing.

On the side of the printer 60, step S119
The process of is executed. The processing of this step S119 is
The process is exactly the same as the process of step S113 described above.

That is, in step S119, the microcomputer 22 receives a head-down drive instruction signal (command; command) from the DSC controller 13.

Subsequently, the microcomputer 22 moves the thermal head 38 (head arm 39) from a predetermined head-up position to a predetermined head-down position and executes a predetermined error detecting operation. When the head-down drive of the thermal head 38 of the printer 60 and the error detection operation are completed, the printer 60 enters the standby state.

On the digital camera 10 side, after the above-described processing of step S51, the processing of step S52 is continuously executed. The process of step S52 is exactly the same as the process of step S38 described above.

That is, in step S52, the DSC controller 13 performs the head-down drive operation (step S
119) The end code is transmitted by the microcomputer 2
2 is periodically requested.

If the printer 60 completes the head-down driving operation at this time and is in the standby state, the microcomputer 22 sends a predetermined end code to the DSC controller 13 when receiving the end code request from the DSC controller 13. To do. After that, the printer 60 enters the standby state.

On the side of the digital camera 10, the DSC controller 13 receives this and obtains the end code, and then proceeds to the processing of the next step S53. This step S
The process of 53 is exactly the same as the process of step S39 described above.

Note that in step S119 described above,
Although the error detection operation is executed, even in this case, when an error is detected, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

At step S53, the DSC controller 13 confirms whether or not the head-down drive operation has been normally completed. Here, when it is confirmed that the operation of the printer 60 has been completed normally, the process proceeds to the next step S54.

If some error information such as a malfunction is confirmed, the process proceeds to step S84 in FIG.

Then, in this step S84, D
The SC controller 13 records and sets error information corresponding to the part of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

As described above, in the process of step S53, when the normal end is confirmed, the process proceeds to the next step S54. The process of step S54 is exactly the same as the process of step S40 described above.

That is, in step S54, the DSC controller 13 sends an instruction signal (command; command) for starting the printing operation to the microcomputer 22. Then, the process proceeds to step S55.

In response to this, the printer 60 side executes the process of step S120. This step S12
The process of 0 is exactly the same as the process of step S114 described above.

That is, in step S120, the microcomputer 22 receives the print operation start instruction signal from the DSC controller 13.

In response to this, the microcomputer 22
Controls the drive of the transport motor 49 via the transport motor drive circuit 50 to prepare for rotating the grip roller 47 in a predetermined direction, that is, preparation for starting the transport operation of the print paper 46.

At the same time, the microcomputer 22 controls the drive of the ribbon motor 30 via the ribbon motor drive circuit 31 to prepare to start the winding operation of the ink ribbon 33.

Subsequently, the processing of step S55 is executed on the digital camera 10 side. This step S55
The process is similar to the process of step S41 described above, and the only difference is that the image data handled is M image data.

That is, in step S55, the DSC controller 13 decomposes the M image data generated in the above-described processing of step S48 for each line, and the data for each line is sequentially output to the microcomputer 2 of the printer 60.
The data transfer process for transferring the data to No. 2 is executed (see FIG. 3 (V)).

When all the data transfer processing of the M image data is completed, the process proceeds to the next step S56.
The process of step S56 is exactly the same as the process of step S42 described above.

Subsequently, in step S56, the DSC controller 13 periodically requests the microcomputer 22 to transmit the print operation end code, and when the end code is acquired, the process proceeds to the next step S57.

On the other hand, on the printer 60 side, step S
The processing of 121 is executed. The process of step S121 is substantially the same as the process of step S115 described above, and the only difference is that the image data to be handled is M image data.

That is, in step S121, the microcomputer 22 receives the transfer data (data for one line of the M image data) from the DSC controller 13 and transfers this to the thermal head control circuit 25. , The print operation is started (see FIG. 3 (V)).

In response to this, the thermal head control circuit 25
Controls the thermal head 38 to execute a printing operation for one line corresponding to the received data for one line. At the same time, the microcomputer 22 controls the drive of the ribbon motor 30 via the ribbon motor drive circuit 31 to execute the winding operation of the ink ribbon 33 in synchronization with the above-described printing operation.

When the printing operation for one line is executed in this way, the microcomputer 22 then drives the carry motor 49 via the carry motor drive circuit 50 to rotate the grip roller 47, thereby causing the print paper 46 to be printed. A carrying operation for carrying a predetermined amount (for one line) is executed. Then, this series of operations is repeated for each line, and when all the printing operations of the M image based on the M image data are completed, the process proceeds to the next step S121.

As described above, in the present embodiment, the series of processes of step S55 and step S121, that is, DS
The data transfer processing for each line by the C controller 13 and the data receiving / printing operation / paper transporting operation by the microcomputer 22 are the data transfer processing of Y image data and the data receiving / printing operation / paper transporting operation (steps). Similar to (S41 and S115), the print operation is performed for each line in synchronization with the data transfer for each line. By sequentially repeating the data processing for one line, M for one screen
It is designed to get a printout of the image.

Further, in the above-mentioned step S121, the microcomputer 22 periodically executes the error detecting operation in parallel during the execution of the series of processes.

When it is confirmed that the transfer processing of all the M image data has been completed, the process proceeds to step S122. The process of step S122 is exactly the same as the process of step S116 described above.

That is, in step S122, the microcomputer 22 controls the drive of the carry motor 49 via the carry motor drive circuit 50 to stop the paper carrying operation, and the ribbon motor 30 via the ribbon motor drive circuit 31. The drive control is performed to stop the winding operation of the ink ribbon 33. Then, in response to the end code request from the DSC controller 13 in step S56, the DSC controller 13 outputs a predetermined end code.
To send to. After that, the printer 60 enters the standby state.

When the end code from the microcomputer 22 is acquired on the digital camera 10 side, the process proceeds to the next step S57, as described above. The process of step S57 is exactly the same as the process of step S43 described above.

[0280] In step S121 described above,
Although the error detection operation is executed, even in this case, when an error is detected, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

At step S57, the DSC controller 13 confirms whether or not the printing operation of the M image based on the M image data has been normally completed. Here, when it is confirmed that the operation of the printer 60 has been completed normally, the process proceeds to the next step S58.

If error information such as some malfunction is confirmed, the process proceeds to step S84 in FIG.

Then, in this step S84, D
The SC controller 13 records and sets error information corresponding to the part of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

When the normal end is confirmed in the above-mentioned step S57, the process proceeds to step S58 as described above. The process of step S58 is exactly the same as the process of step S44 described above.

That is, in step S58, the DSC controller 13 sends an instruction signal for the head-up drive operation of the thermal head 38 to the microcomputer 22. Then, the process proceeds to step S59.

In response to this, the printer 60 side executes the process of step S123. This step S123
The process of is exactly the same as the process of step S117 described above.

That is, in step S123, the microcomputer 22 first determines the DSC controller 13
Receives a head-up drive instruction signal from.

Subsequently, the microcomputer 22 drives and controls the head position control motor 41 via the thermal head control circuit 25 to move the thermal head 38 (head arm 39) from a predetermined head down position to a predetermined head up position. And a predetermined error detecting operation is executed. Then, when the head-up drive operation and the error detection operation are completed, the printer 60 enters the standby state.

On the digital camera 10 side, after the above-described processing of step S58, the processing of step S59 is continuously executed. The process of step S59 is exactly the same as the process of step S45 described above.

That is, in step S59, the DSC controller 13 periodically requests the microcomputer 22 to transmit the end code of the head-up drive operation.

If the printer 60 completes the head-up driving operation at this time and is in the standby state, the microcomputer 22 sends a predetermined end code to the DSC controller 13 when receiving the end code request from the DSC controller 13. To do. After that, the printer 60 enters the standby state.

In response to this, on the digital camera 10 side, the DSC controller 13 acquires the end code, and then proceeds to the processing of the next step S60. The process of step S60 is exactly the same as the process of step S46 described above.

Incidentally, in step S123 described above,
Although the error detection operation is executed, even in this case, when an error is detected, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

At step S60, the DSC controller 13 confirms whether or not the head-up drive operation of the printer 60 has been normally completed. Here, when it is confirmed that the operation of the printer 60 has been completed normally, the process proceeds to the next step S61.

If any error information such as a malfunction is confirmed, the process proceeds to step S84 in FIG.

Then, in this step S84, D
The SC controller 13 records and sets error information corresponding to the part of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

When the normal end is confirmed in the process of step S60, the process proceeds to step S61 as described above. The process of step S61 is exactly the same as the process of step S47 described above.

That is, in step S61, the DSC controller 13 sends to the microcomputer 22 a conveyance operation instruction signal for returning the print paper 46 to a predetermined start position. Then, the process proceeds to step S62.

Next, in step S62, the DSC controller 13 controls the RISC controller 13f to execute color conversion processing (C) for generating C (cyan) image data (see FIG. 3 (VI)). . The color conversion process (C) is substantially the same as the color conversion process (Y) of step S34 or the color conversion process (M) of step S48 described above, and the pixel number conversion is performed in the process of step S32 of FIG. Image data to be printed after processing (YCrC
b data). C generated here
The image data is temporarily stored in the internal memory of the DSC controller 13. Then, this color conversion processing (C)
When is finished, the process proceeds to the next step S63.

While the DSC controller 13 of the digital camera 10 is executing the color conversion process (C), the printer 60 executes the process of the next step S124 in parallel in time (FIG. 3 (VI)). reference). The process of step S124 is exactly the same as the process of step S118 described above.

That is, in step S124, the microcomputer 22 first receives the conveyance operation instruction signal transmitted by the DSC controller 13 in the process of step S61.

In response to this, the microcomputer 22
Controls the transport motor 49 via the transport motor drive circuit 50 to rotate the grip roller 47 in a predetermined direction. As a result, the print paper 46
Are conveyed in a predetermined direction and reset to a predetermined print start position. At the same time, the microcomputer 2
2 executes a predetermined error detection operation. Then, when the paper transport operation on the printer 60 side is completed, the printer 60 enters a standby state.

On the side of the digital camera 10, when the above-described processing of step S62, that is, the color conversion processing (C) is completed, the processing proceeds to step S63 as described above. The process of step S63 is exactly the same as the process of step S49 described above.

That is, in step S63, the DSC controller 13 periodically requests the microcomputer 22 to transmit an end code indicating the end of the paper transport operation in the printer 60.

At this time, if the printer 60 completes the sheet conveying operation and is in the standby state, the microcomputer 22
When the end code request from the DSC controller 13 is received, the end code of the paper transport operation is transmitted to the DSC controller 13. After that, the printer 60 enters the standby state.

In step S124 described above,
Although the error detection operation is executed, even in this case, when an error is detected, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

When the DSC controller 13 of the digital camera 10 acquires the end code, it proceeds to the processing of the next step S64. The process of step S64 is exactly the same as the process of step S50 described above.

[0308] In step S64, the DSC controller 13 confirms whether or not the paper transport operation in the printer 60 has been completed normally. Here, the printer 6
When it is confirmed that the operation at 0 is completed normally,
The process proceeds to step S65 of FIG. If some error information such as a malfunction is confirmed, the process proceeds to step S84 in FIG.

[0309] Then, in this step S84, D
The SC controller 13 records and sets error information corresponding to the part of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

When the normal end is confirmed in the process of the above step S64, as described above, the step S of FIG.
Proceed to the process of 65. The process of step S65 is exactly the same as the process of steps S37 and S51 described above.

That is, in step S65, the DSC controller 13 sends a head-down drive instruction signal to the microcomputer 22, and in step S66.
Go to processing.

On the side of the printer 60, step S125
The process of is executed. The process of step S125 is
The processing is exactly the same as the processing in steps S113 and S119 described above.

That is, in step S125, the microcomputer 22 receives the head-down drive instruction signal (command; command) from the DSC controller 13.

Subsequently, the microcomputer 22 moves the thermal head 38 (head arm 39) from a predetermined head-up position to a predetermined head-down position and executes a predetermined error detecting operation. When the head-down drive of the thermal head 38 of the printer 60 and the error detection operation are completed, the printer 60 enters the standby state.

On the digital camera 10 side, after the above-described processing of step S65, the processing of step S66 is continuously executed. The process of step S66 is exactly the same as the process of steps S38 and S52 described above.

That is, in step S66, the DSC controller 13 performs the head-down drive operation (step S
125) The transmission of the end code in 125)
2 is periodically requested.

If the printer 60 completes the head-down drive operation at this time and is in the standby state, the microcomputer 22 sends a predetermined end code to the DSC controller 13 when receiving the end code request from the DSC controller 13. To do. After that, the printer 60 enters the standby state.

[0318] In the above step S125,
Although the error detection operation is executed, even in this case, when an error is detected, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

On the side of the digital camera 10, the DSC controller 13 receives this and obtains the end code, and then proceeds to the processing of the next step S67. This step S
The process of 67 is exactly the same as the process of steps S39 and S53 described above.

That is, in step S67, the DSC controller 13 confirms whether or not the head-down drive operation is normally completed. Here, if it is confirmed that the operation of the printer 60 has been completed normally, the process proceeds to the next step S68.

If any error information such as malfunction is confirmed, the process proceeds to step S84 in FIG.

Then, in this step S84, D
The SC controller 13 records and sets error information corresponding to the part of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

Upon confirming the normal end in the above-mentioned step S67, the process proceeds to the step S68 as described above. The process of step S68 is exactly the same as the process of steps S40 and S54 described above.

That is, in step S68, the DSC controller 13 sends a command signal (command; command) to start the printing operation to the microcomputer 22. Then, the process proceeds to step S69.

In response to this, the printer 60 side executes the process of step S126. This step S12
The process of 6 is exactly the same as the process of steps S114 and S120 described above.

That is, in step S126, the microcomputer 22 receives a print operation start instruction signal from the DSC controller 13.

In response to this, the microcomputer 22
Controls the drive of the transport motor 49 via the transport motor drive circuit 50 to prepare for rotating the grip roller 47 in a predetermined direction, that is, preparation for starting the transport operation of the print paper 46.

At the same time, the microcomputer 22 controls the drive of the ribbon motor 30 via the ribbon motor drive circuit 31 to prepare to start the winding operation of the ink ribbon 33.

Subsequently, the processing of step S69 is executed on the digital camera 10 side. This step S69
The processing of is substantially the same as the processing of steps S41 and S55 described above, and is different only in that the image data to be handled is C image data.

That is, in step S69, the DSC controller 13 decomposes the C image data generated in the above-described processing of step S62 for each line, and the data for each line is sequentially transferred to the microcomputer 2 of the printer 60.
Perform data transfer processing to transfer to 2 (Fig. 3 (VII)
reference).

When all the data transfer processing of the C image data is completed, the process proceeds to the next step S70.
The process of step S70 is the same as step S42.
The process is exactly the same as the process of S56.

Subsequently, in step S70, the DSC controller 13 periodically requests the microcomputer 22 to transmit the print operation end code, and when the end code is acquired, the process proceeds to the next step S71.

On the other hand, on the printer 60 side, step S
The processing of 127 is executed. The process of step S127 is substantially the same as the process of steps S115 and S121 described above, and only the difference is that the image data to be handled is C image data.

That is, in step S127, the microcomputer 22 receives the transfer data (data for one line of the C image data) from the DSC controller 13 and transfers this to the thermal head control circuit 25. Then, the print operation is started (see FIG. 3 (VII)).

In response to this, the thermal head control circuit 25
Controls the thermal head 38 to execute a printing operation for one line corresponding to the received data for one line. At the same time, the microcomputer 22 controls the drive of the ribbon motor 30 via the ribbon motor drive circuit 31 to execute the winding operation of the ink ribbon 33 in synchronization with the above-described printing operation.

When the printing operation for one line is executed in this way, the microcomputer 22 then drives the carry motor 49 via the carry motor drive circuit 50 to rotate the grip roller 47, and thereby the print paper 46. A carrying operation for carrying a predetermined amount (for one line) is executed. Then, this series of operations is repeated for each line, and when all the printing operations of the C image based on the C image data are completed, the process proceeds to the next step S128.

As described above, in the present embodiment, the series of processes of steps S69 and S127, that is, the data transfer process for each line by the DSC controller 13 and the data reception / printing operation / paper conveying operation by the microcomputer 22 are performed. , Data transfer processing of the above-mentioned Y image data or M image data (step S41 or step S
55) and its data reception / printing operation / paper conveying operation (each processing of step S115 or step S121)
Similarly to the above, control is performed to execute the print operation for each line in synchronization with the data transfer for each line. Then, by sequentially repeating the data processing for one line, the print output of the C image for one screen is obtained.

Further, in step S127 described above, the microcomputer 22 periodically executes the error detecting operation in parallel during the execution of the series of processes.

When it is confirmed that the transfer processing of all the C image data has been completed, the process proceeds to step S128. The process of step S128 is exactly the same as the process of steps S116 and S122 described above.

That is, in step S128, the microcomputer 22 controls the drive of the carry motor 49 via the carry motor drive circuit 50 to stop the paper carrying operation, and the ribbon motor 30 via the ribbon motor drive circuit 31. The drive control is performed to stop the winding operation of the ink ribbon 33. Then, in step S70 described above, in response to the end code request from the DSC controller 13, a predetermined end code is sent to the DSC controller 13.
To send to. After that, the printer 60 enters the standby state.

On the side of the digital camera 10, by acquiring the end code from the microcomputer 22, the process proceeds to the next step S71. This step S
The processing of 71 is exactly the same as the processing of steps S43 and S57 described above.

Incidentally, in the above step S127,
Although the error detection operation is executed, even in this case, when an error is detected, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

In step S71, the DSC controller 13 confirms whether or not the printing operation of the C image based on the C image data has been normally completed. Here, if it is confirmed that the operation of the printer 60 has been completed normally, the process proceeds to the next step S72.

If some error information such as a malfunction is confirmed, the process proceeds to step S84 in FIG.

Then, in this step S84, D
The SC controller 13 records and sets the error information corresponding to the part of the error that has occurred in the internal memory or the like as error history information and the like, and ends the series of print processing (return).

When the normal end is confirmed in the process of the above step S71, the process proceeds to the process of step S72 as described above. The process of step S72 is exactly the same as the process of steps S44 and S58 described above.

That is, in step S72, the DSC controller 13 sends an instruction signal for the head-up drive operation of the thermal head 38 to the microcomputer 22. Then, the process proceeds to step S73.

In response to this, the printer 60 side executes the process of step S129. This step S129
The process of is exactly the same as the process of steps S117 and S123 described above.

That is, in step S129, the microcomputer 22 first determines the DSC controller 13
Receives a head-up drive instruction signal from.

Subsequently, the microcomputer 22 drives and controls the head position control motor 41 via the thermal head control circuit 25 to move the thermal head 38 (head arm 39) from a predetermined head down position to a predetermined head up position. And a predetermined error detecting operation is executed. Then, when the head-up drive operation and the error detection operation are completed, the printer 60 enters the standby state.

On the side of the digital camera 10, after the above-described processing of step S72, the processing of step S73 is continuously executed. The process of step S73 is exactly the same as the process of steps S45 and S59 described above.

That is, in step S73, the DSC controller 13 periodically requests the microcomputer 22 to transmit the end code of the head-up drive operation.

On the printer 60 side, if the head-up drive operation is completed at this time and is in the standby state, when the microcomputer 22 receives the end code request from the DSC controller 13, the microcomputer 22 concerned.
Sends a predetermined end code to the DSC controller 13. After that, the printer 60 enters the standby state.

In response to this, on the side of the digital camera 10, after the DSC controller 13 acquires the end code, the process proceeds to the next step S74. The process of step S74 is exactly the same as the process of steps S46 and S60 described above.

Incidentally, in the above-mentioned step S129,
Although the error detection operation is executed, even in this case, when an error is detected, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

At step S74, the DSC controller 13 confirms whether or not the head-up drive operation in the printer 60 has been normally completed. Here, if it is confirmed that the operation of the printer 60 has been completed normally, the process proceeds to the next step S75. If some error information such as a malfunction is confirmed, the process proceeds to step S84 in FIG.

Then, in this step S84, D
The SC controller 13 sets the error information according to the part of the error that has occurred, and ends the series of print processing (return).

When the normal end is confirmed in the process of step S74, the process proceeds to step S75 as described above. The process of step S75 is exactly the same as the process of steps S47 and S61 described above.

That is, in step S75, the DSC controller 13 sends to the microcomputer 22 an instruction signal for a conveyance operation for returning the print paper 46 to a predetermined start position. Then, the process proceeds to step S76.

In response to this, the printer 60 side executes the process of step S130 (see FIG. 3 (VIII)).
The process of step S130 is the same as step S11 described above.
8. This is exactly the same process as S124.

That is, in step S130, the microcomputer 22 first receives the conveyance operation instruction signal transmitted by the DSC controller 13 in the above-described step S75.

In response to this, the microcomputer 22
Controls the transport motor 49 via the transport motor drive circuit 50 to rotate the grip roller 47 in a predetermined direction. As a result, the print paper 46
Are conveyed in a predetermined direction and reset to a predetermined print start position. At the same time, the microcomputer 2
2 executes a predetermined error detection operation. Then, when the paper transport operation on the printer 60 side is completed, the printer 60 enters a standby state.

On the other hand, on the digital camera 10 side, after the above-described processing of step S75, the processing proceeds to step S76 as described above. The process of step S76 is exactly the same as the process of steps S49 and S63 described above.

That is, in step S63, the DSC controller 13 periodically requests the microcomputer 22 to transmit an end code indicating the end of the paper transport operation in the printer 60.

On the printer 60 side, if the paper carrying operation is completed and in the standby state at this time, when the microcomputer 22 receives the end code request from the DSC controller 13, the microcomputer 22 finishes the paper carrying operation. The code is transmitted to the DSC controller 13. After that, the printer 60 enters the standby state.

Then, when the DSC controller 13 of the digital camera 10 acquires the end code, it proceeds to the processing of the next step S77. The process of step S77 is exactly the same as the process of steps S50 and S64.

In the above step S130,
Although the error detection operation is executed, even in this case, when an error is detected, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

[0368] In step S77, the DSC controller 13 confirms whether or not the paper transport operation in the printer 60 has ended normally. Here, the printer 6
When it is confirmed that the operation at 0 is completed normally,
The process proceeds to step S78 in FIG. If some error information such as a malfunction is confirmed, the process proceeds to step S84 in FIG.

Then, in this step S84, D
The SC controller 13 sets the error information according to the part of the error that has occurred, and ends the series of print processing (return).

When the normal end is confirmed in the above-mentioned step S77, the process proceeds to the step S78 as described above. In step S78, the DSC controller 13 sends an instruction signal (command; command) for instructing the start of the overcoat operation (protective film forming operation) to the microcomputer 22. Then, the process proceeds to step S79.

[0371] In step S79, the DSC controller 13 periodically requests the microcomputer 22 to transmit the end code of the overcoat operation.

On the other hand, on the printer 60 side, step S
At 131, the microcomputer 22 first
DSC controller 13 in step S78 described above
Receives an overcoat operation start instruction signal from.

In response to this, the printer 60 starts the overcoat operation (see FIG. 3 (IX)). That is, the microcomputer 22 moves the thermal head 38 (head arm 39) from a predetermined head-up position to a predetermined head-down position and executes a predetermined error detection operation. Then, the thermal head 3 of the printer 60
When the head-down drive and the error detection operation of 8 are completed, the microcomputer 22 controls the drive of the carry motor 49 via the carry motor drive circuit 50 to rotate the grip roller 47 in a predetermined direction. The conveyance operation of the print paper 46 is started. At the same time, the microcomputer 22 controls the drive of the ribbon motor 30 via the ribbon motor drive circuit 31 to start the winding operation of the ink ribbon 33.

Subsequently, the microcomputer 22 executes a predetermined protective film forming operation (overcoat operation) and a predetermined error detecting operation. When this is completed, the microcomputer 22 drives and controls the carry motor 49 via the carry motor drive circuit 50 to stop the paper carrying operation, and at the same time, the ribbon motor drive circuit 31.
The ribbon motor 30 is driven and controlled via the to stop the winding operation of the ink ribbon 33.

Continuing further, the microcomputer 22
Drives the head position control motor 41 via the thermal head control circuit 25 to move the thermal head 38 (head arm 39) from a predetermined head-down position to a predetermined head-up position and a predetermined error. Perform a detection operation. Then, when the head-up drive operation and the error detection operation are completed, the above step S
In response to the end code request from the DSC controller 13 at 79, a predetermined end code is transmitted to the DSC controller 13. After that, the printer 60 enters the standby state.

In response to this, on the digital camera 10 side, in step S79, the DSC controller 13
Acquires the end code. After that, the next step S
Proceed to the processing of 80.

The operation of forming the protective film executed in step S131 is the same as the above-mentioned steps S115 and S1.
21. S127 is substantially the same as the process described above, but since the protective film formation is a process of merely forming the protective film over the entire surface of the effective print area, image data is unnecessary. Therefore, the image data transfer process from the digital camera 10 side is not involved. Therefore, when the protective film forming operation in step S131 is being executed on the printer 60 side, the digital camera 10 only requests the end code in step S79 described above, and is substantially in the standby state. Has become.

Also, in the above step S131,
Although various error detection operations are executed, even in this case, when an error is detected, the microcomputer 22 receives the error and immediately detects the error.
Stop the operation on the side of and send the end code.

At step S80, the DSC controller 13 confirms whether or not the overcoat operation in the printer 60 has been normally completed. Here, when it is confirmed that the operation of the printer 60 has been completed normally, the process proceeds to the next step S81. If some error information such as malfunction is confirmed, the process proceeds to step S84.

Then, in this step S84, D
The SC controller 13 sets the error information according to the part of the error that has occurred, and ends the series of print processing (return).

When the normal end is confirmed in the process of step S80, the process proceeds to step S81 as described above. In step S81, the DSC controller 13 transmits an instruction signal (command; command) for instructing the start of the paper discharge operation to the microcomputer 22. Then, the process proceeds to step S82.

In step S82, the DSC controller 13 periodically requests the microcomputer 22 to send the end code of the paper discharge operation.

On the other hand, on the printer 60 side, step S
At 132, the microcomputer 22 first
DSC controller 13 in step S81 described above
Receives a signal for instructing the start of the paper discharge operation.

In response to this, the paper discharge operation and the error detection operation for discharging the printed and overcoated print paper 46 to the outside of the printer 60 are performed (see FIG. 3 (X)). This paper discharge operation is similar to the print paper 46 transfer operation performed by the microcomputer 22 controlling the drive of the transfer motor 49 via the transfer motor drive circuit 50 to rotationally drive the grip roller 47 in a predetermined direction. Is the operation.

When the paper discharge operation and the error detection operation are completed, a predetermined end code is transmitted to the DSC controller 13 in response to the end code request from the DSC controller 13 in step S82. After that, the printer 60 enters the standby state.

In response to this, on the digital camera 10 side, in step S82, the DSC controller 13
Acquires the end code. After that, the next step S
Go to step 83.

In step S132 described above,
Although the error detection operation is executed, in this case as well, when an error is detected, the microcomputer 22 immediately receives the error and stops the operation on the printer 60 side and transmits an end code. .

At step S83, the DSC controller 13 confirms whether or not the paper discharge operation of the printer 60 has been normally completed. Here, when it is confirmed that the operation of the printer 60 has been normally completed, the process proceeds to the next step S85, and in this step S85, after initialization (data clear) of each error information, a series of The process ends (return).

On the other hand, when the error information such as some malfunction is confirmed in the above-mentioned step S83,
In step S84, the DSC controller 13 records and sets the error information corresponding to the location of the error that has occurred in the internal memory or the like as error history information, and ends the series of print processes (return). ).

As described above, according to the first embodiment, the color conversion processing operation on the digital camera 10 side and the transport operation on the printer 60 side include a portion that progresses in parallel in time. So that it can be executed at such a timing
Control means for both the digital camera 10 and the printer 60 (DSC controller 13 and microcomputer 2
Since the configuration of (2) can be made to cooperate with each other, it is possible to easily realize high-speed printing operation.

By the way, in the above-described print system of the first embodiment, the data transfer process when performing the print operation is such that the print operation for one line is executed every time the data transfer for one line is performed. Have control. However, the means of data transfer processing is not limited to this, for example, 1
The control may be such that the image data for the screen is collectively transferred. The print system according to the second embodiment of the present invention described below is an example in which the data transfer processing is collectively performed for one screen.

The digital camera and printer in the print system of the second embodiment of the present invention are the same as those of the above-mentioned first camera.
The digital camera 10 and the printer 60 in the print system of the above embodiment have exactly the same configuration, and only a part of the operation control of both devices, that is, a part of the print processing is configured differently. .

Therefore, the configurations of the digital camera and the printer that constitute the printing system of this embodiment (see FIG. 1).
2) and a schematic flow thereof (see FIG. 2) are omitted, and mainly different points will be described below.

FIG. 8 and FIGS. 9 to 11 are views showing the outline of the printing process in the operation of the printing system according to the second embodiment of the present invention. Among these, FIG. 8 is a timing chart showing the outline of the print processing by the print system of the present embodiment. This FIG. 8 corresponds to the first
4 is a diagram corresponding to FIG. 3 in the embodiment of FIG.

Further, FIGS. 9 to 11 are flowcharts showing details of the print processing by the present print system. 9 to 11 correspond to FIGS. 4 to 7 in the above-described first embodiment.

8 to 11, the processes of the digital camera side and the printer side are described together as in FIGS. 3 to 7 in the above-described first embodiment so that the operations of both devices are performed. I try to show the timing.

Note that in FIG. 8 as well as in FIG. 3, the numbers attached to the reference numeral S are the numbers corresponding to the step numbers shown in FIGS. 9 to 11 (detailed description will be given later). That is, each process shown in FIG. 8 corresponds to the process step indicated by the symbol S among the process steps in FIGS. 9 to 11.

First, of the operations of the printing system of this embodiment, the outline of the flow of printing processing will be described below with reference to FIG.

In order to execute the print processing in this print system, the user first prints the image data to be printed on the recording medium 18 on the digital camera 10 side, as in the first embodiment. An operation of selecting from a plurality of image data by a predetermined means is performed. By this operation, the image data corresponding to the image desired to be printed is read (that is, extracted) from the recording medium 18, and the digital camera 10
It is temporarily recorded in the SDRAM or the like inside.

When the image data to be printed is selected and extracted by the user in this manner, the image data is temporarily stored in the SDRAM 16 of the digital camera 10 as described above, and at the same time, the corresponding image is displayed on the liquid crystal display. It is displayed on the display screen of the monitor 15 (step S6 in FIG. 2).
~ S10).

In this state, when the user performs a predetermined operation for instructing the start of printing (see step S11 in FIG. 2), it is confirmed that the printing system is ready for printing (see FIG. 2). (See step S12),
After that, a predetermined print process (see step S13 in FIG. 2) is executed.

The DSC controller 13 of the digital camera 10 controls the image size conversion circuit 13d to execute the pixel number conversion process for the print target image data extracted by the user in advance ((I) in FIG. 8; described later). (See step S202 in FIG. 9). At this time, the printer 60
Is in a waiting state.

Next, with respect to the print target image data which has been subjected to the pixel number conversion processing, the DSC controller 1
In step 3, a predetermined color conversion process for generating print data of an optimum form for executing the print process is sequentially performed. This color conversion process is a process of generating Y, M, and C color image data based on the print target image data.

First, the DSC controller 13 performs color conversion processing (Y) for generating Y (yellow) image data.
Is executed (see FIG. 8 (II); step S203 in FIG. 9). Even at this stage, the printer 60 is in the standby state.

Next, when the color conversion process (Y) is completed, the DSC controller 13 executes a data transfer process (Y) for transferring the Y image data generated by the process to the printer 60 side. This data transfer process (Y) is a transfer process for all of the generated Y image data, that is, for all the data of one screen of the Y image data (FIG. 8 (III); step S205 of FIG. 9).
reference).

In parallel with this, the printer 60 side receives the instruction signal from the DSC controller 13 and executes a predetermined paper feeding operation. The paper feeding operation performed here is
In this process, the print paper 46 is pulled out from the paper tray 45 and moved to a predetermined print start position. At the same time, the microcomputer 22 of the printer 60
In response to the instruction signal from the DSC controller 13, the received Y image data for one screen is transferred to the SRAM 24 of the printer 60.
Etc. (FIG. 8 (III); see step S302 in FIG. 9).

[0407] On the digital camera 10 side, when the above-mentioned data transfer processing (Y) is completed, the DSC controller 1
3 subsequently executes color conversion processing (M) for generating M (magenta) image data (FIG. 8 (IV); see step S209 in FIG. 9).

In parallel with this, on the printer 60 side, in response to the instruction signal from the DSC controller 13, the microcomputer 22 reads the Y image data stored in the SRAM 24, and the Y image printing operation based on this is read. It is executed (FIG. 8 (IV); see step S305 in FIG. 9).

Subsequently, on the digital camera 10 side, when the above-mentioned color conversion processing (M) is completed, the DSC controller 13 transfers the M image data generated by this processing to the printer 60 side. The process (M) is executed. This data transfer process (M) is a transfer process for all the generated M image data, that is, for all the data of one screen of the M image data (FIG. 8).
(V); see step S213 in FIG. 9).

In parallel with this, the printer 60 side receives the instruction signal from the DSC controller 13 and executes a predetermined sheet conveying operation. The paper transport operation performed here is a process of transporting the print paper 46 on which the Y image has been printed to a predetermined print start position. At the same time, the microcomputer 22 of the printer 60
In response to the instruction signal from the DSC controller 13, the received M image data for one screen is transferred to the SRAM 24 of the printer 60.
Etc. (FIG. 8 (V); step S in FIG. 9)
308).

On the digital camera 10 side, when the above-mentioned data transfer processing (M) is completed, the DSC controller 1
3 subsequently executes color conversion processing (C) for generating C (cyan) image data (FIG. 8 (VI); see step S217 in FIG. 9).

In parallel with this, on the printer 60 side, in response to the instruction signal from the DSC controller 13, the microcomputer 22 reads the M image data stored in the SRAM 24, and performs the M image printing operation based on this. Execute (FIG. 8 (VI); step S311 in FIG. 10)
reference).

Subsequently, on the digital camera 10 side, when the above-mentioned color conversion processing (C) is completed, the DSC controller 13 transfers the C image data generated by this processing to the printer 60 side. The process (C) is executed. This data transfer process (C) is a transfer process for all of the generated C image data, that is, for all the data of one screen of the C image data (see FIG. 8 (VI
I); see step S221 in FIG. 9).

At this point, the digital camera 10 is in a standby state, or continuously executes a print operation for another image. When performing another image print operation,
A pixel number conversion process (see FIG. 8I) and a color conversion process (Y) (FIG. 8 (II)) are performed on the print target image data. Hereinafter, similar processing is repeated.

In parallel with this, the printer 60 side receives the instruction signal from the DSC controller 13 and executes a predetermined sheet conveying operation. The paper transport operation performed here is a process of transporting the print paper 46 that has been printed in a form in which the Y image and the M image are superimposed to a predetermined print start position. At the same time, the microcomputer 22 of the printer 60 receives the instruction signal from the DSC controller 13 and temporarily stores the received C image data for one screen in the SRAM 24 or the like of the printer 60 (FIG. 8 (VII); (See step S314 in FIG. 10).

Subsequently, on the printer 60 side, in response to the instruction signal from the DSC controller 13, the microcomputer 22 reads the C image data stored in the SRAM 24 and executes the C image printing operation based on this (FIG. 8). (VIII); see step S317 in FIG. 10).

When the printing operation of this C image is completed,
The printer 60 receives the instruction signal from the DSC controller 13 and executes a predetermined paper transport operation. The paper transport operation performed here is a process of transporting the printed print paper 46 in a form in which the Y, M, and C images are superimposed to a predetermined print start position (FIG. 8 (IX);
(Refer to the process of step S320 of FIG. 11).

Subsequently, the printer 60 receives the instruction signal of the DSC controller 13 and executes the protective film forming operation, that is, the overcoat operation (FIG. 8 (X); see the processing of step S321 in FIG. 11).

When this overcoat operation is completed, a paper discharge operation for discharging the print paper on which the desired image is printed to the outside of the printer 60 is performed (see FIG. 8 (X
I); see the processing of step S322 in FIG. 11). When this paper discharge operation ends, a series of print processing ends.

Details of the flow of the printing process in the printing system executed as described above will be described below with reference to FIGS. 9 to 7.

As described above, when it is confirmed in step S12 of FIG. 2 that both the digital camera 10 and the printer 60 are in the printable state, the DSC controller 13 and the printer 6 of the digital camera 10 concerned.
The microcomputer 22 of 0 executes the print processing of step S13 and step S107. Details of the print processing executed in the print system of this embodiment are as shown in FIGS.

As shown in FIGS. 9 to 11, the print processing in the print system of this embodiment is basically the same as the print processing in the print system of the above-described first embodiment (FIGS. 4 to 7). The process is almost the same. Therefore, the description of the processing steps in which the same processing as that of the above-described first embodiment is performed will be simplified, and the processing steps in which different processing is performed will be described in detail below.

When the printing process is started, first, in step S201 of FIG. 9, the digital camera 10
The DSC controller 13 periodically sends an instruction signal requesting print parameter information to the microcomputer 22 of the printer 60 (step S in FIG. 4).
Processing exactly the same as 31).

When the printer 60 receives this instruction signal, the microcomputer 22 reads out predetermined print parameter information from the non-volatile memory 53 or the like in step S301 and sends it to the digital camera 10 side. After that, the printer 60 enters the standby state (the same process as step S111 in FIG. 4).

The digital camera 10 side obtains the print parameter information of the printer 60 by receiving the print parameter information. Then, the process proceeds to step S202.

In step S202, the DSC controller 13 reads the print target image data stored in the SDRAM 16 or the like, and the image size conversion circuit 1
A pixel number conversion process is executed on the print target image data read by controlling 3d (see FIG. 8 (I); FIG. 4).
Processing exactly the same as step S32). Then, the process proceeds to step S203. Note that this step S203
The process of is completely the same as the process of step S34 of FIG.

In step S203, the DSC controller 13 controls the RISC controller 13f to execute a color conversion process (Y) for generating Y (yellow) image data (see FIG. 8 (II)). Then, the generated Y image data is temporarily stored in the internal memory of the DSC controller 13 or the like. Then, the next step S20
Go to step 4.

Next, in step S204, the DSC
The controller 13 sends to the microcomputer 22 an instruction signal (command; command) indicating that the paper feeding operation should be executed. Then, the process proceeds to step S205. The process of step S204 is exactly the same as step S33 of FIG.

[0429] In step S205, the DSC controller 13 executes a data transfer process for collectively transferring all of the Y image data (for one screen) generated in the process of step S203 to the microcomputer 22 of the printer 60 ( See FIG. 8 (III). Then, after the data transfer process is completed, the process proceeds to the next step S206.

Here, while the DSC controller 13 of the digital camera 10 is executing the data transfer process (Y), the process of the next step S302 is executed on the printer 60 side in parallel with the time. (See FIG. 8 (III)).

That is, on the printer 60 side, step S
In 302, the microcomputer 22 is a DSC.
The instruction signal of the sheet feeding operation from the controller 13 is received.

In response to this, the microcomputer 22
Controls the transport motor 49 via the transport motor drive circuit 50 to rotate the grip roller 47 in a predetermined direction. As a result, the print paper 46
Is pulled out from the paper tray 45 and is fed to a predetermined print start position.

In parallel with this, the microcomputer 22 receives the transfer data from the DSC controller 13, temporarily stores the received data in the SRAM 24, and executes a predetermined error detecting operation. The error detection operation executed here is an operation of monitoring whether the paper tray detection switch 44, the paper position sensor 51, or the like, to check whether any operation failure (error) or the like has occurred. This is an operation for checking whether or not there is an error in the transfer process.

[0434] When the paper feeding operation, the data receiving processing, and the error detecting operation on the printer 60 side are thus completed,
The printer 60 is in a standby state.

On the digital camera 10 side, when the data transfer processing in step S205 is completed, the processing proceeds to step S206 as described above.

[0436] In step S206, the DSC controller 13 periodically requests the microcomputer 22 to transmit an end code indicating that the paper feeding operation and the data receiving process in the printer 60 have been completed.

If the printer 60 completes the paper feed operation and the data transfer processing at this time and is in the standby state, the microcomputer 22 receives the end code request from the DSC controller 13 and then ends the paper feed operation and the data reception processing. The code is transmitted to the DSC controller 13. After that, the printer 60 enters the standby state.

When the DSC controller 13 of the digital camera 10 acquires this end code, it proceeds to the processing of the next step S207.

Note that in step S302 described above,
Although the error detection operation is executed, when an error is detected in this case, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

[0440] In step S207, the DSC controller 13 confirms whether or not the paper feeding operation and the data receiving process in the printer 60 have been completed normally. This confirmation is performed based on the end code received in step S206 described above. Here, the printer 60
If it is confirmed that the operation in step 1 has been completed normally, the process proceeds to the next step S208. Further, when some malfunction is detected, for example, error information such as paper jam (jam) or data reception failure is confirmed, the process proceeds to step S237 of FIG.

Then, in this step S237,
The DSC controller 13 records and sets error information corresponding to the location of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return). The process of step S237 is
The process is exactly the same as step S84 in FIG.

When it is confirmed that the process has been completed normally in step S207, and the process proceeds to step S208, in step S208, the DSC controller 13
Sends an instruction signal (command; command) for instructing the start of the printing operation for the Y image to the microcomputer 22. Then, the process proceeds to step S209.

In step S209, the DSC controller 13 controls the RISC controller 13f to execute a color conversion process (M) for generating M (magenta) image data (see FIG. 8 (IV)). This color conversion process (M) is exactly the same as step S48 of FIG. 5, and is substantially the same as the above-described color conversion process (Y) of step S203, and the number of pixels in the process of step S202. It is performed based on the print target image data (YCrCb data) after the conversion processing. And
The generated M image data is temporarily stored in the internal memory of the DSC controller 13 or the like. Then, the process proceeds to the next step S210.

In step S210, the DSC controller 13 periodically requests the microcomputer 22 to send an end code indicating that the print operation has ended, and waits until the end code is acquired.

Here, while the DSC controller 13 of the digital camera 10 is executing the color conversion processing (M), the printer 60 side, in parallel with the time, carries out the Y image of the next steps S303 to S307. Each processing relating to the print operation of is executed (see FIG. 8 (IV)).

That is, in step S303, the microcomputer 22 first receives the print operation instruction signal (command; command) transmitted by the DSC controller 13 in the process of step S208.

In response to this, the microcomputer 22
Drives the head position control motor 41 via the thermal head control circuit 25 to move the head arm 39 having the thermal head 38 from a predetermined head-up position to a predetermined head-down position. Driving to this head-down position is performed by the ink ribbon 33 and the print paper 4.
This is the operation of pressing 6 and 6 together. At the same time, the microcomputer 22 executes a predetermined error detecting operation. Then, the process proceeds to step S304. The process of step S303 is the same as step S113 of FIG.
The process is almost the same as.

Next, in step S304, the microcomputer 22 controls the drive of the carry motor 49 via the carry motor drive circuit 50 to prepare for rotating the grip roller 47 in a predetermined direction.
That is, the preparation for starting the conveyance operation of the print paper 46 is prepared.

At the same time, the microcomputer 22 controls the drive of the ribbon motor 30 via the ribbon motor drive circuit 31 to prepare to start the winding operation of the ink ribbon 33. After that, step S
Proceed to the process of 305. The process of step S304 is exactly the same as step S114 of FIG.

At step S 305, the microcomputer 22 receives from the DSC controller 13 S
The transfer data (Y image data) stored in the RAM 24 is transferred to the thermal head control circuit 25, and the printing operation is started. In response to this, the thermal head control circuit 25
Converts the image data line by line so that each line becomes a drive signal for the heater of the thermal head 38.
Drive control of the thermal head 38 is performed based on this. Therefore, the result of the printing operation for one line corresponding to the received data for one line is obtained.

At the same time, the microcomputer 22
Is connected to the ribbon motor 3 via the ribbon motor drive circuit 31.
The drive operation of 0 is performed to execute the winding operation of the ink ribbon 33 in synchronization with the above-described printing operation.

When the printing operation for one line is executed in this way, the microcomputer 22 drives the carry motor 49 through the carry motor drive circuit 50 to rotate the grip roller 47, thereby causing the print paper 46 to move.
A carrying operation for carrying a predetermined amount (for one line) is executed.

Then, this series of operations is repeated for each line, and the Y image printing operation based on the Y image data is executed, and at the same time, a predetermined error detecting operation is executed.
Then, when the print operation based on the Y image data ends, the process proceeds to step S306.

In step S306, the microcomputer 22 controls the drive of the carry motor 49 via the carry motor drive circuit 50 to stop the paper carrying operation.
At the same time, the microcomputer 22 controls the drive of the ribbon motor 30 via the ribbon motor drive circuit 31 to stop the winding operation of the ink ribbon 33.
Then, the process proceeds to step S307. The process of step S306 is exactly the same as step S116 of FIG.

In step S307, the microcomputer 22 drives and controls the head position control motor 41 via the thermal head control circuit 25 to move the head arm 39 having the thermal head 38 from the head down position to the predetermined head up position. Move to. Driving to the head-up position is an operation of separating the ink ribbon 33 and the print paper 46. At the same time, the microcomputer 22 executes a predetermined error detecting operation.

When the head-up drive operation and the error detection operation of the thermal head 38 on the printer 60 side are completed in this way, D in step S210 described above is completed.
In response to the end code request from the SC controller 13, a predetermined end code is transmitted to the DSC controller 13. After that, the printer 60 enters the standby state.
The process of step S307 is substantially the same as step S117 of FIG.

On the digital camera 10 side, step S
When the end code from the microcomputer 22 is acquired at 210, the process proceeds to the next step S211.

The steps S303 and S305 described above are used.
In each process of S307, various error detection operations are executed, but when an error is detected in this case, the microcomputer 22 immediately stops the operation of the printer 60 side and returns the end code. To send.

In step S211, the DSC controller 13 confirms whether or not the printing operation of the Y image based on the Y image data in the printer 60 has been normally completed. Here, if it is confirmed that the operation of the printer 60 has been completed normally, the next step S212.
Go to processing. If any error information is confirmed, the process proceeds to step S237 in FIG.

Then, in this step S237,
The DSC controller 13 records and sets error information corresponding to the location of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

[0461] In step S212, the DSC controller 13 sends an instruction signal (command; command) to the microcomputer 22 to return the print paper 46 to a predetermined start position and reset the paper. To send to. Then, the process proceeds to step S213.

The process of step S212 is substantially the same as the process of step S47 in FIG. 5, and the process of step S213 is substantially the same as the process of step S205 described above.

[0463] In step S213, the DSC controller 13 executes a data transfer process of transferring all of the M image data (for one screen) generated in the process of step S209 to the microcomputer 22 of the printer 60 (Fig. 8 (V)). Then, after the data transfer process is completed, the process proceeds to the next step S214.

Here, while the DSC controller 13 of the digital camera 10 is executing the data transfer process (M), the process of the next step S308 is executed on the printer 60 side in parallel with the time. (See FIG. 8 (V)). The process of step S308 is the same as step S302 described above.
The process is substantially the same as the process.

That is, on the printer 60 side, step S
At 308, the microcomputer 22 is a DSC.
The instruction signal of the paper transport operation from the controller 13 is received.

In response to this, the microcomputer 22
Controls the transport motor 49 via the transport motor drive circuit 50 to rotate the grip roller 47 in a predetermined direction. As a result, the print paper 46
Are conveyed in a predetermined direction and reset to a predetermined print start position. At the same time, the microcomputer 2
2 executes a predetermined error detection operation. When the paper transport operation and the error detection operation are completed, the printer 6
0 goes into a standby state.

On the digital camera 10 side, when the data transfer processing (M) in step S213 is completed, the processing proceeds to step S214 as described above.

At step S 214, the DSC controller 13 causes the print paper 46 in the printer 60 to be printed.
The microcomputer 22 is periodically requested to transmit an end code indicating that the carrying operation of (3) is completed. Note that the process of step S214 is the same as that of step S214 described above.
The process is exactly the same as the process of 206.

On the printer 60 side, if the carrying operation is completed at this time and the printer is in the standby state, the microcomputer 22
After receiving the end code request from the DSC controller 13, the DSC controller 13 outputs the end code of the transport operation.
Send to. After that, the printer 60 enters the standby state.

When the DSC controller 13 of the digital camera 10 acquires this end code, it proceeds to the process of step S215.

[0471] Incidentally, in the above-mentioned step S308,
Although the error detection operation is executed, when an error is detected in this case, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

[0472] In step S215, the DSC controller 13 confirms whether or not the carrying operation in the printer 60 has been normally completed. Here, the printer 60
If it is confirmed that the operation in step 1 has been completed normally, the process proceeds to step S216 in FIG. If any error information is confirmed, step S in FIG.
Proceed to the process of 237.

Then, in this step S237,
The DSC controller 13 records and sets error information corresponding to the location of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

When the normal end is confirmed in the process of step S215 and the process proceeds to step S216 of FIG. 10, the DSC controller 13 instructs to start the print operation for the M image in step S216. An instruction signal (command; command) is sent to the microcomputer 22. Then, step S2
Proceed to the process of 17. The process of step S216 is substantially the same as the process of step S208 described above.

In step S217, the DSC controller 13 controls the RISC controller 13f to execute color conversion processing (C) for generating C (cyan) image data (see FIG. 8 (VI)). This color conversion process (C) is exactly the same as step S62 of FIG. 5, and is substantially the same as the above-described color conversion processes (Y) and (M) of steps S203 and S209. S
The process is performed based on the print target image data (YCrCb data) after the pixel number conversion process in the process of 202. Then, the generated C image data is temporarily stored in the internal memory or the like of the DSC controller 13. Then, the process proceeds to the next step S218.

[0476] In step S218, the DSC controller 13 periodically requests the microcomputer 22 to transmit an end code indicating that the print operation has ended, and waits until the end code is acquired.

Here, while the DSC controller 13 of the digital camera 10 is executing the color conversion processing (C), in parallel with this, on the printer 60 side, the next step S309 is executed.
The processing of the print operation for the M image in S313 is executed (see FIG. 8 (IV)). Note that this step S30
The processing of 9 to S313 is the same as steps S303 to S3 described above.
The process is substantially the same as 07.

That is, in step S309, the microcomputer 22 receives the print operation instruction signal (command; command) transmitted by the DSC controller 13 in the above-described processing of step S216.

In response to this, the microcomputer 22
Drives the head position control motor 41 via the thermal head control circuit 25 to move the head arm 39 having the thermal head 38 from a predetermined head-up position to a predetermined head-down position. At the same time,
The microcomputer 22 executes a predetermined error detection operation. Then, the process proceeds to step S310. The process of step S309 is the same as that of step S309 described above.
The process of 303 and the process of step S119 of FIG. 5 are substantially the same.

[0480] In step S310, the microcomputer 22 controls the drive of the carry motor 49 via the carry motor drive circuit 50 to cause the grip roller 4 to move.
Preparations for rotationally driving 7 in a predetermined direction, that is, preparation for starting the conveyance operation of the print paper 46 are prepared.

At the same time, the microcomputer 22 prepares to start the winding operation of the ink ribbon 33 by controlling the drive of the ribbon motor 30 via the ribbon motor drive circuit 31. After that, step S
Then, the process proceeds to 311. The process of step S310 is exactly the same as step S120 of FIG.

[0482] In step S311, the microcomputer 22 receives from the DSC controller 13 S
The transfer data (M image data) stored in the RAM 24 is transferred to the thermal head control circuit 25, and the printing operation is started. In response to this, the thermal head control circuit 25
Converts the image data line by line into a drive signal for the heater in the thermal head 38, and controls the drive of the thermal head 38 based on this. As a result, the printing operation for one line corresponding to the received data for one line is executed.

At the same time, the microcomputer 22
Is connected to the ribbon motor 3 via the ribbon motor drive circuit 31.
The drive operation of 0 is performed to execute the winding operation of the ink ribbon 33 in synchronization with the above-described printing operation.

When the printing operation for one line is executed in this way, the microcomputer 22 then drives the carry motor 49 via the carry motor drive circuit 50 to rotate the grip roller 47, thereby causing the print paper 46 to be printed. A carrying operation for carrying a predetermined amount (for one line) is executed. Then, this series of operations is repeated for each line to execute the M image printing operation based on the M image data, and at the same time, execute a predetermined error detecting operation.
Then, when the print operation based on the M image data ends, the process proceeds to step S312.

[0485] In step S312, the microcomputer 22 controls the drive of the carry motor 49 via the carry motor drive circuit 50 to stop the paper carrying operation.
At the same time, the microcomputer 22 controls the drive of the ribbon motor 30 via the ribbon motor drive circuit 31 to stop the winding operation of the ink ribbon 33.
Then, the process proceeds to step S313. The process of step S312 is substantially the same as step S122 of FIG.

In step S313, the microcomputer 22 drives and controls the head position control motor 41 via the thermal head control circuit 25 to move the head arm 39 including the thermal head 38 from a predetermined head down position to a predetermined head position. Move it to the up position. Driving to the head-up position is an operation of separating the ink ribbon 33 and the print paper 46. At the same time, the microcomputer 22 executes a predetermined error detecting operation.

When the head-up drive operation and the error detection operation of the thermal head 38 on the printer 60 side are completed in this way, D in step S218 described above is completed.
In response to the end code request from the SC controller 13, a predetermined end code is transmitted to the DSC controller 13. After that, the printer 60 enters the standby state.
The process of step S313 is substantially the same as step S123 of FIG.

On the digital camera 10 side, step S
When the end code from the microcomputer 22 is acquired at 218, the process proceeds to the next step S219.

The steps S309 and S311 described above are performed.
In each process of S313, various error detection operations are executed, but when an error is detected in this case, the microcomputer 22 immediately stops the operation on the printer 60 side and returns the end code. To send.

In step S219, the DSC controller 13 confirms whether or not the printing operation of the M image based on the M image data in the printer 60 has been normally completed. Here, if it is confirmed that the operation of the printer 60 has been completed normally, the next step S220
Go to processing. If any error information is confirmed, the process proceeds to step S237 in FIG.

Then, in this step S237,
The DSC controller 13 records and sets error information corresponding to the location of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

When the normal end is confirmed in the processing of the above step S219, and the process proceeds to the next step S220, in this step S220, the DSC controller 13
Sends an instruction signal (command; command) to the microcomputer 22 indicating that the paper transport operation for returning the print paper 46 to a predetermined start position and resetting the print paper 46 should be performed. Then, the process proceeds to step S221.

The process of step S220 is substantially the same as the process of step S61 of FIG. 5, and is exactly the same as step S212 described above. The process of step S221 is the same as step S205 described above.
The process is substantially the same as the process of S213.

[0494] In step S221, the DSC controller 13 executes a data transfer process of transferring all of the C image data (for one screen) generated in the process of step S217 to the microcomputer 22 of the printer 60 (Fig. 8 (VII)). Then, after the data transfer process is completed, the process proceeds to the next step S222.

Here, while the DSC controller 13 of the digital camera 10 is executing the data transfer process (C), in parallel with this, the printer 60 side executes the next step S3.
14 is executed (see FIG. 8 (VII)).

That is, on the printer 60 side, step S
At 314, the microcomputer 22 causes the DSC to
The instruction signal of the paper transport operation from the controller 13 is received.

In response to this, the microcomputer 22
Controls the transport motor 49 via the transport motor drive circuit 50 to rotate the grip roller 47 in a predetermined direction. As a result, the print paper 46
Are conveyed in a predetermined direction and reset to a predetermined print start position. At the same time, the microcomputer 2
2 executes a predetermined error detection operation. When the paper transport operation and the error detection operation are completed, the printer 6
0 goes into a standby state. The process of step S314 is exactly the same as the process of step S308 described above.

On the side of the digital camera 10, when the data transfer processing (C) of the above step S221 is completed, it proceeds to the processing of step S222 as described above.

In step S222, the DSC controller 13 causes the print paper 46 in the printer 60 to be printed.
The microcomputer 22 is periodically requested to transmit an end code indicating that the carrying operation of (3) is completed. The process of step S222 is the same as that of step S222 described above.
The process is exactly the same as the process of 206 / S214.

At this time, if the printer 60 completes the carrying operation and is in the standby state, the microcomputer 22 determines that the DS
When the end code request from the C controller 13 is received, the end code of the carrying operation is transmitted to the DSC controller 13. After that, the printer 60 enters the standby state.

On the digital camera 10 side, D
When the SC controller 13 acquires the end code from the microcomputer 22 of the printer 60 in step S222, the process proceeds to the next step S223.

Incidentally, in the above-mentioned step S314,
Although the error detection operation is executed, when an error is detected in this case, the microcomputer 22 immediately stops the operation on the printer 60 side and transmits an end code.

At step S223, the DSC controller 13 confirms whether or not the carrying operation of the printer 60 has been normally completed. Here, the printer 60
If it is confirmed that the operation in step 1 has been completed normally, the process proceeds to step S224. If any error information is confirmed, the process proceeds to step S237 in FIG.

Then, in this step S237,
The DSC controller 13 records and sets error information corresponding to the location of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

When it is confirmed that the process is normally completed in the process of step S223 and the process proceeds to step S224, in step S224, the DSC controller 13
Sends an instruction signal (command; command) to the microcomputer 22 to instruct the start of the printing operation for the C image. Then, the process proceeds to step S225. The processing in step S224 is substantially the same as the above-described steps S208 and S216.

Subsequently, in step S225, the DSC
The controller 13 periodically requests the microcomputer 22 to transmit an end code indicating that the printing operation of the printer 60 has ended, and waits until the end code is acquired.

On the other hand, on the printer 60 side, the print operation processing for the C image in the next steps S315 to S319 is executed (see FIG. 8 (VIII)). The processing in steps S315 to S319 is the same as that in step S above.
The processing is substantially the same as each processing group of 303 to S307 or steps S309 to S313.

That is, in step S315, the microcomputer 22 receives the print operation instruction signal (command; command) transmitted by the DSC controller 13 in the processing of step S224 described above.

Upon receipt of this, the microcomputer 22
Drives the head position control motor 41 via the thermal head control circuit 25 to move the head arm 39 having the thermal head 38 from a predetermined head-up position to a predetermined head-down position. At the same time,
The microcomputer 22 executes a predetermined error detection operation. Then, the process proceeds to step S316. The process of step S315 is the same as the above-mentioned step S315.
Each process of 303 / S309 and step S125 of FIG.
The processing is substantially the same as the above.

[0510] In step S316, the microcomputer 22 controls the drive of the carry motor 49 via the carry motor drive circuit 50 to cause the grip roller 4 to move.
Preparations for rotationally driving 7 in a predetermined direction, that is, preparation for starting the conveyance operation of the print paper 46 are prepared.

At the same time, the microcomputer 22 prepares to start the winding operation of the ink ribbon 33 by controlling the drive of the ribbon motor 30 via the ribbon motor drive circuit 31. After that, step S
Proceed to the process of 317. The process of step S316 is exactly the same as the processes of steps S304 and S310 described above and the process of step S126 of FIG.

[0512] In step S317, the microcomputer 22 receives from the DSC controller 13 S
The transfer data (C image data) stored in the RAM 24 is transferred to the thermal head control circuit 25, and the printing operation is started. In response to this, the thermal head control circuit 25
Converts the image data line by line into a drive signal for the heater in the thermal head 38, and controls the drive of the thermal head 38 based on this. As a result, the printing operation for one line corresponding to the received data for one line is executed.

At the same time, the microcomputer 22
Is connected to the ribbon motor 3 via the ribbon motor drive circuit 31.
The drive operation of 0 is performed to execute the winding operation of the ink ribbon 33 in synchronization with the above-described printing operation.

When the printing operation for one line is executed in this manner, the microcomputer 22 then drives the carry motor 49 via the carry motor drive circuit 50 to rotate the grip roller 47, thereby causing the print paper 46 to move. A carrying operation for carrying a predetermined amount (for one line) is executed. Then, this series of operations is repeated for each line, and the C image printing operation based on the C image data is executed, and at the same time, a predetermined error detecting operation is executed.
Then, when the print operation based on the C image data ends, the process proceeds to step S318. It should be noted that the process of step S317 is the same as steps S305 and S described above.
The processing of 311 and the processing of step S121 and the like in FIG. 6 are substantially the same.

[0515] In step S318, the microcomputer 22 controls the drive of the carry motor 49 via the carry motor drive circuit 50 to stop the paper carrying operation.
At the same time, the microcomputer 22 controls the drive of the ribbon motor 30 via the ribbon motor drive circuit 31 to stop the winding operation of the ink ribbon 33.
Then, the process proceeds to step S319. It should be noted that the processing of step S318 is the same as steps S306 and S described above.
The processing is substantially the same as each processing of 312 and step S122 of FIG.

In step S319, the microcomputer 22 drives and controls the head position control motor 41 via the thermal head control circuit 25 to move the head arm 39 having the thermal head 38 from a predetermined head down position to a predetermined head position. Move it to the up position. Driving to the head-up position is an operation of separating the ink ribbon 33 and the print paper 46. At the same time, the microcomputer 22 executes a predetermined error detecting operation.

When the head-up drive operation and the error detection operation of the thermal head 38 on the printer 60 side are completed in this way, D in step S225 described above is completed.
In response to the end code request from the SC controller 13, a predetermined end code is transmitted to the DSC controller 13. After that, the printer 60 enters the standby state.
The process of step S319 is the same as the processes of steps S307 and S313 described above and step S12 of FIG.
The process is substantially the same as 3 and the like.

On the digital camera 10 side, step S
At 225, when the end code from the microcomputer 22 is acquired, the process proceeds to the next step S226.

[0519] Incidentally, the above-mentioned steps S315 and S317.
In each process of S319, various error detection operations are executed, but when an error is detected in this case, the microcomputer 22 immediately stops the operation of the printer 60 side and returns the end code. To send.

[0520] In step S226, the DSC controller 13 confirms whether or not the printing operation of the C image based on the C image data in the printer 60 has been normally completed. Here, if it is confirmed that the operation of the printer 60 is normally completed, step S2 of FIG.
Proceed to the process of 27. If any error information is confirmed, the process proceeds to step S237 in FIG.

Then, in this step S237,
The DSC controller 13 records and sets error information corresponding to the location of the error that has occurred in the internal memory or the like as error history information, and ends a series of print processing (return).

[0522] If normal termination is confirmed in the processing in step S226, then step S22 is performed as described above.
Proceed to the process of 7. After the processing of step S227 to the processing of step S237 (processing step on the digital camera side) and the processing of step S320 to step S322 (processing step on the printer side), the print paper 46 is returned to the start position and the overcoat operation is performed. Is performed, and thereafter, a series of processes for performing a paper discharge operation of discharging the print paper 46 to the outside of the printer 60.

[0523] With regard to a series of operations including the overcoating operation and the paper discharging operation, step S75 of Fig. 6 and step S7 of Fig. 7 described in the first embodiment are described.
Up to 85 processing (processing steps on the digital camera side)
From step S130 of FIG. 6 to step S13 of FIG.
The operation corresponds to the processing up to the second processing (processing step on the printer side), and each processing is exactly the same.
Therefore, the details thereof have already been described in the above description of the first embodiment, and will be omitted in the description of the second embodiment.

As described above, according to the second embodiment, the same effect as that of the first embodiment can be obtained, and the image data is transferred from the digital camera 10 side to the printer 60 side. When the data transfer operation for transferring the image data is performed, the image data for each color component is collectively transferred, so that the data transfer operation can be reliably executed, and the digital camera 10 side After the transfer operation is completed, it is possible to obtain a margin for performing another operation. Therefore, for example, when the digital camera 10 completes the data transfer operation and stands by,
When the printer 60 is performing a printing operation including a sheet conveying operation and a head driving operation, the digital camera 10 can perform various operations such as selecting the next image data to be printed.

[0525]

As described above, according to the present invention, a digital camera capable of acquiring and recording electronic image data,
In a print system including a printer that receives image data transmitted from this digital camera and prints out an image corresponding to the image data on a medium such as print paper, a print system that realizes high-speed print operation by an easy means. A system and a digital camera and printer applicable to this printing system can be provided.

[Brief description of drawings]

FIG. 1 is a block configuration diagram showing an outline of an internal configuration of each of a digital camera (image input device) and a printer (image forming device) that constitute a print system according to a first embodiment of the present invention.

FIG. 2 is a flowchart illustrating an outline of the operation of the printing system in FIG.

FIG. 3 is a timing chart showing an outline of print processing executed in the print system of FIG.

FIG. 4 is a front part of a flowchart showing details of print processing by the print system of FIG.

5 is a first half of a middle part of a flowchart showing details of print processing by the print system of FIG.

FIG. 6 is the second half of the middle part of the flowchart showing details of the print processing by the print system of FIG.

7 is a latter part of a flowchart showing details of print processing by the print system of FIG.

FIG. 8 is a timing chart showing an outline of print processing executed in the print system according to the second embodiment of the present invention.

9 is a front part of a flowchart showing details of print processing by the print system in FIG. 8;

10 is a middle part of a flowchart showing details of print processing by the print system in FIG.

FIG. 11 is a latter part of a flowchart showing details of print processing by the print system in FIG.

[Explanation of symbols]

10 ... Digital camera 11 ... Shooting optical system 12 ... Imaging unit 13 ... DSC controller (control means / color conversion processing means) 14 ... Camera operation switch 15 ... Liquid crystal monitor 16 ... SDRAM (temporary memory) 17 ...... Flash ROM 18 ...... Recording medium 19 ...... USB host controller 21 ...... Camera power supply circuit 22 ...... Microcomputer (control means) 22 a ...... USB device controller 24 ...... SRAM (temporary memory) 25 ...... Thermal head control Circuit 38 ... Thermal head (printing head portion) 41 ... Head position control motor (head driving means) 42 ... Head motor driving circuit (head driving means) 46 ... Print paper 47 ... Grip roller (print paper conveyance) Means) 48 ...... Pinch roller (print paper transport Means) 49 ... Transport motor (print paper transport means) 50 ... Transport motor drive circuit (print paper transport means) 52 ... Platen roller (print paper transport means) 53 ... Non-volatile memory 54 ... Printer operation switch 55 ...... Printer power circuit 60 …… Printer

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 5/76 H04N 5/76 E 5C062 9/79 101: 00 // H04N 101: 00 9/79 HF Term (reference) 2C061 AP10 AR01 HH06 HJ02 HJ06 HK04 HN02 HN15 5B021 AA30 BB03 DD07 5C022 AA13 AC69 5C052 AA12 DD02 FA02 FA03 FB01 FD13 5C055 BA08 EA00 GA00 5C062 AA05 AB16 AB22AE01 AC11 AB22 AB30 AC11 AB22 AB30 AC11

Claims (12)

[Claims] 1. A printing system in which a digital camera and a printer, each of which is provided with control means for controlling its operation, are functionally coupled to each other, wherein the digital camera is provided with each predetermined image related to an image to be printed. Color conversion data for sequentially converting the color component data of the above into the data to be printed in a form suitable for the printing operation by the printer, and the predetermined data processed by this color conversion processing operation are sequentially transferred to the printer side. The printer is configured so as to be able to execute operations including a data transfer operation under the control of its own control means, and the printer has a form corresponding to the transfer operation for the print paper and the data transferred from the digital camera side. An operation including a head driving operation for driving and printing the own print head unit is controlled by the own control means. And a timing such that both the color conversion processing operation on the digital camera side and the transporting operation on the printer side include a portion that progresses in parallel in time. The printing system is configured to cooperate with each of the control means described above. 2. A printing system in which a digital camera and a printer each provided with control means for controlling the operation are functionally coupled to each other, wherein the digital camera is controlled by its own control means. Then, color conversion processing means for converting each predetermined color component data relating to one image to be printed into print data in a form suitable for the printing operation by the printer, and one formed by this color conversion processing means. A memory for holding print data of the color component relating to one image, and a data transfer operation for gradually transferring the print data held in the memory to the printer side for each line of the color component of the image The printer includes a print sheet conveying unit that conveys a print sheet under the control of the control unit of the printer. The memory for holding the print data for each line transferred from the digital camera side and the print head unit of its own in a form corresponding to the print data for each line held in the memory The head drive operation is included, and both the color conversion processing operation by the color conversion processing means on the digital camera side and the print paper conveying operation by the print paper conveying means on the printer side are temporal. A printing system, wherein the control means on the digital camera side and the control means on the printer side are configured to cooperate with each other so as to be performed at a timing including a portion parallel to the above. 3. A print system in which a digital camera and a printer each provided with control means for controlling the operation are functionally coupled to each other, wherein the digital camera is controlled by its own control means. Then, color conversion processing means for converting each predetermined color component data relating to one image to be printed into print data in a form suitable for the printing operation by the printer, and one formed by this color conversion processing means. A memory for holding print data of the color component for one image and a data transfer for transferring the print data held in the memory to the printer side for each image of the color component of the image The printer is configured to include a print sheet transporting unit that transports a print sheet under the control of the control unit of the printer. A memory for holding print data for each image transferred from the digital camera side, and a print head unit of its own in a form corresponding to the print data for each image held in this memory A timing including a portion in which both the color conversion processing operation on the digital camera side and the print sheet conveying means on the printer side are temporally parallel to each other. The printing system is characterized in that the control means on the digital camera side and the control means on the printer side cooperate with each other as described in (1). 4. A digital camera applied to a printing system in which a digital camera and a printer each provided with a control unit for controlling the operation are functionally coupled to each other, wherein the control unit controls the control unit. Below, color conversion processing means for performing a color conversion process for sequentially converting each predetermined color component data relating to an image to be printed into print target data in a form suitable for the printing operation by the printer,
And a data transfer means for sequentially transferring each predetermined print data processed and formed by the color conversion processing means to the printer side, and the control means is configured by the color conversion processing means. Cooperating with the control means on the printer side so that both the color conversion processing operation and the operation for transporting the print paper on the printer side are performed at a timing including a portion that progresses in parallel in time. A digital camera characterized by being configured in. 5. A printer applied to a printing system in which a digital camera and a printer each provided with control means for controlling the operation are functionally coupled to each other, under the control of its own control means. A print sheet transporting means for carrying out a print sheet transporting operation, and a head drive means for driving and printing the print head portion of the printer in a form corresponding to the data transferred from the digital camera side. In addition, the control means is a print paper conveyance operation by the print paper conveyance means and print data of a form suitable for the print operation by the printer for each predetermined color component data regarding the image to be printed on the digital camera side. Both the color conversion processing operation for sequentially converting to A printer configured to cooperate with the control means on the digital camera side so as to be performed at a timing including the above. 6. A digital camera applied to a print system in which a digital camera and a printer each provided with a control unit for controlling the operation are functionally coupled to each other, wherein the control unit controls the control unit. Below, color conversion processing means for converting each predetermined color component data relating to one image to be printed into printed data in a form suitable for the printing operation by the printer, and formed by this color conversion processing means A memory for holding print data of the color component for one image, and a data transfer for gradually transferring the print data held in the memory to the printer side for each line of the color component of the image And a control means for controlling both of the color conversion processing operation and the print sheet conveying operation on the printer side. A digital camera, characterized in that the digital camera is configured to cooperate with the control means on the printer side so that the work is performed at a timing including a portion parallel in time. 7. A printer applied to a print system in which a digital camera and a printer, each of which is provided with control means for controlling operation, are functionally coupled to each other, wherein the printer is the self-control device. A print sheet transporting means for transporting the print sheet under the control of the means,
The memory for holding the print data for each line transferred from the digital camera side and the own print head unit are driven in a form corresponding to the print data for each line held in this memory And a head driving means, and the control means performs the print paper transporting operation and the color conversion processing operation on the digital camera side at a timing including a portion in which the operations are parallel in time. A printer configured to cooperate with the control means on the digital camera side as described above. 8. A digital camera which is applied to a printing system in which a digital camera and a printer each of which is provided with control means for controlling the operation are functionally coupled to each other. Below, color conversion processing means for converting each predetermined color component data relating to one image to be printed into printed data in a form suitable for the printing operation by the printer, and formed by this color conversion processing means A memory for holding print data of the color component relating to one image, and data for transferring the print data held in the memory to the printer side for each image of the color component of the image. And a transfer means, wherein the control means operates both the color conversion processing operation and the print sheet conveying operation on the printer side. The digital camera is configured so as to cooperate with the control means on the printer side so as to be performed at a timing including a time-parallel portion. 9. A printer applied to a printing system in which a digital camera and a printer, each of which is provided with control means for controlling operation, are functionally coupled to each other, wherein the printer is the self-control device. A print sheet transporting means for transporting the print sheet under the control of the means,
A memory for holding print data for each image transferred from the digital camera side, and a print head of its own in a form corresponding to the print data for each image held in this memory And a head driving unit that drives the unit, and the control unit includes a unit in which both the print sheet transporting operation and the color conversion processing operation on the digital camera side are temporally parallel. A printer configured to cooperate with the control means on the digital camera side so as to be performed at a timing including the printer. 10. The print sheet carrying means of the printer carries out, as a print sheet carrying operation, a preparatory carrying operation for carrying out a print sheet from a paper loading section and carrying it to a position facing the print head section, and the print sheet. A print head transporting operation for causing a relative displacement between the print head section and the print head section to perform a predetermined print operation, and the digital camera The control means on the side and the control means on the printer side perform both the color conversion processing operation by the color conversion processing means on the digital camera side and the print paper carrying operation by the print paper carrying means on the printer side. Configured to cooperate so that the operations are performed at timings that include parts that are parallel in time. Printing system according to claim 2 or claim 3, characterized in Rukoto. 11. A preparatory carrying operation for carrying out a print paper from a paper loading section and carrying it to a position facing the print head section by a print paper carrying means of the printer and the print paper carrying operation. When the head unit is configured to execute a carrying operation including a print paper carrying operation for causing a relative displacement with respect to the printing head unit so as to perform a predetermined printing, the above control is performed. The means performs the color conversion processing operation by the color conversion processing means and the print paper transport operation by the print paper transport means on the printer side at a timing including a portion in which the operations proceed in parallel in time. 9. The printer according to claim 6 or 8, wherein the printer is configured to cooperate with the control means on the printer side. Digital camera according to any Re. 12. The print paper carrying means carries out a preparatory carry operation for carrying out a print paper from a paper loading section and carrying it to a position facing the print head section as a print paper carrying operation, and the print head. Section is configured to perform a transport operation including a print sheet transport operation for causing a relative displacement with respect to the print head section to perform a predetermined print, and the control means is configured to perform the print operation. Cooperating with the control means on the digital camera side so that both the print paper transport operation by the paper transport means and the color conversion processing operation on the digital camera side are performed at a timing including a portion which is temporally parallel. The digital camera according to claim 7, wherein the digital camera is configured to: