JP5772872B2 - Image recording apparatus and program - Google Patents

Description

  The present invention relates to an image recording apparatus and a program for recording an image on a recording medium.

  In order to increase the security of printed matter, a printer that performs printing related to image data by transmitting an image data of an image to be printed by the user from the terminal to the printer and then performing an authentication procedure in the printer is known. (For example, refer to Patent Document 1).

JP 2009-61634 A

  In the above-mentioned printer, from the viewpoint of security, when the working memory is removed from the printer and the power supply to the working memory is stopped, the working memory is a volatile memory so that the stored image data is erased. There are many. However, when the working memory is a volatile memory, the sleep state in which the power supply to the arithmetic processing unit including the working memory is stopped so that the image data is not erased during the waiting period until the user authentication procedure is performed. During this time, it is difficult to save power.

  An object of the present invention is to provide a recording apparatus and a program that can save power while increasing security.

The image recording apparatus of the present invention includes a recording unit that records an image on a recording medium, a receiving unit that receives image data relating to an image transmitted from the outside, and the image data received by the receiving unit. A calculation means for performing a calculation for converting into drive data for driving the means; a first memory which is a volatile memory in which the drive data converted by the calculation means is stored; and the image data or the drive Input means for inputting authentication information relating to data, authentication determination means for determining whether or not the authentication information input by the input means includes predetermined information, the computing means and the first Limiting means for limiting power supply to the memory, a second memory for storing the image data, and the drive data or the previous data between the first memory and the second memory. Transfer means for transferring the image data, the recording means, and a control means for controlling said transfer means and said limitation means. The control means controls the transfer means to store the image data received by the receiving means in the second memory and transfer the image data stored in the second memory to the first memory. , Controlling the calculation means to convert the image data transferred to the first memory into the drive data, storing the drive data converted by the calculation means in the first memory , and the authentication After the authentication determination means determines that the information includes the predetermined information, the calculation means calculates the drive data stored in the first memory and the image data stored in the second memory. Based on one of the converted drive data, the recording unit is controlled so that the image is recorded on a recording medium. The image data has a smaller data amount than the drive data.

The program of the present invention drives a recording means for recording an image on a recording medium, a receiving means for receiving image data relating to an image transmitted from the outside, and the recording means received by the receiving means. And a first memory that is a volatile memory in which the driving data converted by the calculating means is stored, authentication information relating to the image data or the driving data. An input unit that is input, an authentication determination unit that determines whether or not the authentication information input by the input unit includes predetermined information, power supply to the calculation unit and the first memory is limited. Limiting means, a second memory for storing the image data, and transfer of the drive data or the image data between the first memory and the second memory. Transfer means for performing, and said recording means, a control means for controlling said transfer means and said limitation means, the image data in the image recording apparatus data amount is smaller than the driving data, said control means, said reception The image data received by the means is stored in the second memory, and the transfer means is controlled to transfer the image data stored in the second memory to the first memory, and transferred to the first memory. The calculation means is controlled to convert the image data thus converted into the drive data, the drive data converted by the calculation means is stored in the first memory , and the authentication information indicates the predetermined information. After the authentication determining means determines that the image data is provided, the drive data stored in the first memory and the image data stored in the second memory are stored. Based on one of the driving data converted by said operation means from said causing the computer to function so as to control the recording means so that the image is recorded on the recording medium.

According to the present invention, even if drive data or image data stored in the first memory is lost by restricting the power supply to the arithmetic device and the first memory before making the authentication determination, the second memory Since the drive data or image data remains, image recording of the drive data or image data can be performed after the restriction is released, and power saving can be achieved while increasing security. Further, the image data is stored in the second memory, the drive data converted from the image data by the computing means is stored in the first memory, and the image data has a data amount that is greater than that of the drive data. small. According to this, since conversion from image data to drive data is not required after authentication, recording can be performed quickly. In addition, since the image data having a data amount smaller than the drive data is stored, the capacity of the second memory can be reduced.

In the present invention, the control means, after the restriction of the supply of the power by the limiting means is released, the transfer means as before Symbol image data is transferred from the second memory to said first memory Is preferably controlled. According to this, it is possible to efficiently record an image.

  Further, in the present invention, the control unit is configured to output the power when a time during which neither recording by the recording unit, reception by the receiving unit, nor input to the input unit is performed exceeds a predetermined time. It is preferable to control the restricting means so that the supply of water is restricted. According to this, power saving can be achieved efficiently.

In the present invention, the control means, until the recording of the image is completed by the recording means, it is preferable not to erase the image data stored in the second memory. According to this, even when the recording medium is jammed and the image recording is interrupted, the image recording can be retried thereafter.

Further, in the present invention, the control means, wherein when the recording of the recording means by the images is completed, erases the image data stored in the first the driving data and the second memory is stored in the memory It is preferable. According to this, unnecessary data can be deleted to secure a memory capacity, and data leakage can be prevented.

  In addition, in the present invention, it is preferable that the limiting unit completely cuts off power supply to at least one of the arithmetic unit and the first memory. According to this, power saving can be achieved reliably.

According to the present invention, even if the driving data stored in the first memory by supplying the electric power is restricted for computing unit and the first memory before performing the authentication determination disappeared and images data to the second memory Therefore, after the restriction is released, image recording of the drive data or image data can be performed, and power saving can be achieved while increasing security.

1 is a network diagram including an inkjet printer according to an embodiment of the present invention. It is a schematic side view of the inkjet printer shown in FIG. It is a functional block diagram of the control apparatus shown in FIG. 3 is a flowchart showing a printing operation of the ink jet printer shown in FIG. 1.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the inkjet printer 1 is a shared printer connected to a LAN (Local Area Network) 70 together with a plurality of client terminals 71. The user transmits a print command for printing a desired image on the paper P from the client terminal 71 to the inkjet printer 1 via the LAN 70.

  As shown in FIG. 2, the inkjet printer 1 includes a conveyance mechanism 20, four inkjet heads 2 that respectively eject black, magenta, cyan, and yellow ink droplets onto a sheet P that is conveyed by the conveyance mechanism 20. A mechanism 20 and a control device 16 are included. In the transport mechanism 20, the transport belt 8 rotates together with the belt rollers 6 and 7, so that the paper P placed on the transport belt 8 is transported between the four inkjet heads 2 and the platen 10. Is done. At this time, a desired image is printed on the paper P by ejecting ink droplets from each inkjet head 2 onto the paper P.

  The ink jet printer 1 has an operation panel 61 (see FIG. 3) on which a touch panel display is arranged.

Next, the control device 16 will be described with reference to FIG. As shown in FIG. 3, the control device 16 includes a receiving unit 41, a main CPU (Central Processing Unit) 42, a main memory (second memory) 43, an image processing CPU (calculation means) 45, and image processing work. A memory (first memory) 46 and a power supply unit 47 are provided. Programs executed by the main CPU 42 and the image processing CPU 45 are stored in the nonvolatile memory 56, and each functional unit constituting the control device 16 is constructed in cooperation with these hardware and software in the nonvolatile memory 56. . This program is stored in various recording media such as a flexible disk, a CD-ROM, and a memory card, and is installed in the nonvolatile memory 56 from these recording media. The control program recorded on the recording medium may be directly executable by the main CPU 42 and the image processing CPU 45, or may be executable only after being installed in the nonvolatile memory 56. Further, it may be encrypted or compressed.

The receiving unit 41 receives a print command from the client terminal 71 via the LAN 70. The print command includes data indicating a print mode and image data relating to an image to be printed on the paper P. Print modes include secure printing and normal printing. Secure printing is a printing operation in which the inkjet printer 1 does not start printing according to the print command until the user who has transmitted the print command from the client terminal 71 to the inkjet printer 1 inputs authentication information. As described above, in secure printing, printing is started under user monitoring, so that the security of the printed matter is increased. Further, normal printing is a printing operation in which when the inkjet printer 1 receives a print command transmitted from the client terminal 71, printing according to the print command is immediately started.

  The main CPU 42 is a general-purpose CPU that performs calculations for controlling the overall operation of the inkjet printer 1. The main memory 43 is a DRAM (Dynamic Random Access Memory) which is a kind of volatile memory connected to the main CPU 42 via a data bus. The main memory 43 functions as a work memory for the main CPU 42.

  The image processing CPU 45 is a CPU dedicated to image processing that performs calculations related to image processing for converting image data indicating an image to be printed on the paper P into drive data for driving the inkjet head 2. The image processing work memory 46 is a DRAM connected to the image processing CPU 45 via a high-speed data bus. The drive data converted from the image data by the image processing CPU 45 is stored in the image processing work memory 46. As described above, the image processing CPU 45 and the image processing work memory 46 can perform image processing independently, so that the main CPU 42 can occupy the main memory 43 and use it efficiently. As for the drive data, in the case of an inkjet head, the drive data is data representing the amount of ink ejected from the inkjet head for each unit area of the recording medium, and image data (for example, page description language PDL) by using a known error diffusion process Is converted into driving data. (So-called multi-value processing is performed.) When the recording apparatus is a so-called laser printer, print data (PDL data) is converted to drive data (laser recording unit drive data) using a known dithering process. Is done. The drive data includes not only quantitative data (so-called print data such as ink amount and density value) recorded for each unit area of the recording medium, but also data for controlling the drive of the printing unit 66. Also good.

  The power supply unit 47 supplies 3.3V power to the main CPU 42, the main memory 43, the image processing CPU 45, and the image processing work memory 46 based on the power received from the outside. Further, when the sleep unit 55 outputs a sleep mode start signal, the power supply unit 47 completely cuts off only the power supplied to the image processing CPU 45 and the image processing work memory 46. Since it is necessary to cope with communication from the outside, operation of the operation panel 61, and the like in the sleep mode, supply of power to the main CPU 42 and the main memory 43 is not limited. Since the image processing CPU 45 and the image processing work memory 46 operate in cooperation with each other, power supply to both is stopped simultaneously.

  When the sleep unit 55 stops outputting the sleep mode start signal in order to end the sleep mode, the interrupted power is restored (described later). In order to perform image processing in a short time, the image processing CPU 45 often uses a CPU having a calculation processing speed higher than that of the main CPU 42. In this case, the image processing CPU 45 is frequently accessed by the power consumption and the image processing CPU 45. Since the power consumption of the image processing work memory 46 is larger than the power consumption of the main CPU 42 and the main memory 43, the sleep mode that completely cuts off the power supplied to the image processing CPU 45 and the image processing work memory 46 is performed. Power consumption can be reduced more efficiently.

  The main CPU 42 functions as an authentication determination unit 51, a data conversion unit 52, a transfer unit 53, a control unit 54, and a sleep unit 55 by cooperating with the main memory 43. Hereinafter, each functional unit will be described.

  When the reception unit 41 receives a print command, the authentication determination unit 51 determines whether the print command is secure printing or normal printing. Usually, this determination is made based on the identification data (data indicating the print mode) included in the print command, the format of the image data, and the like. The authentication determination unit 51 further determines whether or not the authentication information input to the user via the operation panel 61 includes predetermined information when determining that secure printing is performed. The predetermined information corresponds to a match with a password included in the print command or a match with user information stored in the printer. As for the input by the user, in addition to the input by the operation panel 61, information stored in a card or the like may be input by causing the reading device connected to the ink jet printer 1 to read the information.

  The transfer unit 53 transfers data between the main memory 43 and the image processing work memory 46. The transfer unit 53 stores the image data included in the print command received by the receiving unit 41 in the main memory 43 and stores the image data in the image processing work memory 46. Thereafter, the image data stored in the image processing work memory 46 is converted into drive data by the image processing CPU 45. As a result, the drive data is stored in the image processing work memory 46. As described above, image data received before authentication, which will be described later, is converted into drive data for the inkjet head 2, so that printing can be quickly executed after the authentication procedure by the user is completed.

  When the sleep mode is started, the power supplied to the image processing work memory 46 is cut off, so that the drive data stored in the image processing work memory 46 is lost. In the present embodiment, when the sleep mode is later released, the transfer unit 53 causes the image data stored in the main memory 43 to be transferred to the image processing work memory 46. The image data stored in the image processing work memory 46 is converted into drive data by the image processing CPU 45. As a result, the drive data is restored to the image processing work memory 46.

  The sleep unit (restricting unit) 55 determines to start a sleep mode that saves power when a predetermined time has elapsed since the last printing, user operation on the inkjet printer 1, and data transmission. . When the sleep unit 55 determines to start the sleep mode, the sleep unit 55 outputs a sleep start signal to the power supply unit 47. Further, the sleep unit 55 determines to cancel the sleep mode when any of printing, user operation to the inkjet printer 1 and data transmission is performed in the sleep mode, and the sleep to the power supply unit 47 is ended. Output of a signal or output of a sleep start signal is stopped.

  The control unit 54 controls the transport mechanism 20, the four inkjet heads 2 (only one is shown in FIG. 3), the transfer unit 53, and the sleep unit 55. When the authentication determination unit 51 determines that the received print command is secure printing, the control unit 54 determines that the authentication information input by the user via the operation panel 61 includes predetermined information. Wait until it judges. Thereafter, when the authentication determination unit 51 determines that the authentication information includes predetermined information when the user inputs the authentication information via the operation panel 61, the control unit 54 causes the paper P to be conveyed in a predetermined amount. Drive data stored in the image processing work memory 46 is transferred to each inkjet head 2 so that an image of image data related to secure printing is printed on the paper P while controlling the transport mechanism 20 so that the transport mechanism 20 is transported at a speed. Each inkjet head 2 is driven by transmitting. Further, after the printing on the paper P is completed, the control unit 54 deletes the drive data stored in the image processing work memory 46 and the image data stored in the main memory 43.

  On the other hand, when the authentication determination unit 51 determines that the received print command is normal printing, the control unit 54 performs normal printing while controlling the transport mechanism 20 so that the paper P is transported at a predetermined transport speed. The drive data stored in the image processing work memory 46 is transmitted to each inkjet head 2 so that the image of the image data is printed on the paper P, and each inkjet head 2 is driven based on the drive data.

  Hereinafter, the printing operation of the inkjet printer 1 will be described with reference to FIG. As illustrated in FIG. 4, the reception unit 41 determines whether or not a print command transmitted from the client terminal 71 has been received (S101). When the receiving unit 41 has not received a print command (S101: NO), it is determined whether or not there is a waiting for input of authentication information by the user for the print command previously received by the receiving unit 41 (S102). If there is no waiting for input of authentication information by the user (S102: NO), the receiving unit 41 returns to the determination of whether or not a print command has been received (S101). If waiting for input of authentication information by the user (S102: YES), the authentication determination unit 51 determines whether or not authentication information has been input to the user via the operation panel 61 (S108).

  On the other hand, when the receiving unit 41 receives the print command (S101: YES), the image data related to the received print command is stored in the main memory 43. Then, it is determined whether or not the sleep unit 55 is in the sleep mode (S103). If the sleep mode is set (S103: YES), the sleep unit 55 starts the sleep mode release process, and outputs the sleep end signal to the power supply unit 47 or stops outputting the sleep start signal. Thereby, the supply of power to the image processing CPU 45 and the image processing work memory 46 is started (S104). Thereafter, the control unit 54 controls the transfer unit 53 so that the image data stored in the main memory 43 is stored in the image processing work memory 46 (S105). If the sleep mode is not set (S103: NO), the control unit 54 does not perform the sleep mode canceling process so that the image data stored in the main memory 43 is stored in the image processing work memory 46. The transfer unit 53 is controlled (S105).

  The image processing CPU 45 converts the image data stored in the image processing work memory 46 into drive data. As a result, the drive data is stored in the image processing work memory 46 (S106).

  Then, it is determined whether or not the print command received by the authentication determination unit 51 is secure printing (S107). If the received print command is normal printing (S107: NO), the control unit 54 controls the transport mechanism 20 so that the paper P is transported at a predetermined transport speed, and the image of the image data related to normal printing. Is printed on the paper P, the drive data stored in the image processing work memory 46 is transmitted to each inkjet head 2, and each inkjet head 2 is driven based on the drive data. (S114).

  If the received print command is secure printing (S107: YES), the authentication determination unit 51 determines whether authentication information is input to the user via the operation panel 61 (S108). If the authentication information is not input (S108: NO), the sleep unit 55 determines whether or not the sleep mode is set (S109). If the sleep mode is set (S109: YES), the process returns to the determination of whether or not the receiving unit 41 has received a print command (S101). If the sleep mode is not set (S109: NO), the sleep unit 55 saves power depending on whether a predetermined time has elapsed since the last printing, user operation on the inkjet printer 1, and data transmission. It is determined whether or not to start the sleep mode (S110). When the sleep unit 55 does not start the sleep mode (S110: NO), the process returns to the determination of whether or not the reception unit 41 has received a print command (S101).

  When the sleep unit 55 determines to start the sleep mode (S110: YES), the sleep start process is started, and the sleep unit 55 outputs a sleep start signal to the power supply unit 47. Thereby, the sleep mode is started, and only the power supplied to the image processing CPU 45 and the image processing work memory 46 is completely cut off (S111). At this time, the drive data stored in the image processing work memory 46 is lost. When the sleep mode is started, the process returns to the determination of whether the receiving unit 41 has received a print command (S101).

  On the other hand, if authentication information is input in secure printing (S108: YES), it is determined whether or not the sleep unit 55 is in the sleep mode (S112), and if it is not in the sleep mode (S112: NO). ), The control unit 54 controls the transport mechanism 20 so that the paper P is transported at a predetermined transport speed, and the image processing work memory so that the image of the image data related to secure printing is printed on the paper P. Each inkjet head 2 is driven based on the drive data stored in 46 (S114).

  If the sleep mode is set (S112: YES), the sleep release process is started. At this time, the control unit 54 controls the transfer unit 53 so that the image data stored in the main memory 43 is stored in the image processing work memory 46. Further, the image processing CPU 45 converts the image data stored in the image processing work memory 46 into drive data. (S113). Then, the control unit 54 controls the transport mechanism 20 so that the paper P is transported at a predetermined transport speed, and the image processing work memory so that the image of the image data related to secure printing is printed on the paper P. Each inkjet head 2 is driven based on the drive data stored in 46 (S114). After the printing on the paper P is completed, the control unit 54 deletes the drive data stored in the image processing work memory 46 and the image data stored in the main memory 43 (S115). Above, the flowchart of FIG. 4 is complete | finished.

  As described above, according to the inkjet printer 1 of the present embodiment, the power supplied to the image processing CPU 45 and the image processing work memory 46 is limited by starting the sleep mode before performing authentication related to secure printing. Even if the drive data stored in the image processing work memory 46 is lost, the image data remains in the main memory 43. Therefore, after the sleep mode is canceled, the drive data is restored from the image data, It is possible to record an image of drive data, and it is possible to save power while increasing security.

  Further, since the image data is restored from the main memory 43 to the image processing work memory 46 after the sleep mode is canceled, printing can be performed efficiently without the main CPU 42 being interposed.

  Furthermore, since the sleep mode is started when a predetermined time has elapsed since the user's operation and data transmission to the printing, the inkjet printer 1 were last performed, it is possible to efficiently save power.

  In addition, the image data is stored in the main memory 43, and the drive data converted from the image data is stored in the image processing work memory 46. Therefore, there is no need to convert the image data to the drive data after authentication, and printing can be performed quickly. Can be executed. Further, since the image data having a data amount smaller than the drive data is stored in the main memory 43, the capacity of the main memory 43 can be reduced.

  Further, since the main memory 43 is a volatile memory, the drive data saved in the main memory 43 is erased when the power of the inkjet printer is turned off. Thereby, security can be further increased.

  In addition, since the image data stored in the main memory 43 is not deleted until the printing on the paper P is completed, even if the paper P is jammed and the printing is interrupted, the printing is retried thereafter. Can do.

  Further, after the printing on the paper P is completed, the drive data stored in the image processing work memory 46 and the image data stored in the main memory 43 are deleted, so that each memory capacity can be secured and data of Outflow can be prevented.

  Further, when the sleep mode is started, the power supplied to the image processing CPU 45 and the image processing work memory 46 is completely cut off, so that power saving can be reliably achieved.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. For example, in the above-described embodiment, the image data stored in the main memory 43 is stored in the image processing work memory 46 after the sleep mode is canceled. For example, the image data is stored in the image processing work memory 46. Even when the drive data is transferred to the main memory 43, the drive data is stored in the main memory 43, and the drive data is returned to the image processing work memory 46 after the sleep mode is canceled. Good. According to this, it is not necessary to convert the image data into drive data after the sleep mode is canceled, so that printing can be started quickly.

  Furthermore, the image data may not be stored in the image processing work memory 46 after the sleep mode is canceled. In this case, the control unit 54 converts the image data stored in the main memory 43 into drive data, and drives each inkjet head 2 based on the drive data.

  In the above-described embodiment, the image data received by the receiving unit 41 is converted into drive data by the image processing CPU 45 before the authentication input is completed. However, until the authentication input is completed. The image data may not be converted into drive data. In this case, the amount of data stored in the memory can be reduced by configuring the image data in a page description language (PDL) or the like.

  In addition, in the above-described embodiment, the sleep mode is started when a predetermined time has elapsed since the printing, the user's operation with respect to the inkjet printer 1 and the data transmission were last performed. May be configured to start under other conditions.

  Furthermore, in the above-described embodiment, the main memory 43 is a volatile memory, but the main memory 43 may be a non-volatile memory.

  In the above-described embodiment, after the printing on the paper P is completed, the drive data stored in the image processing work memory 46 and the image data stored in the main memory 43 are deleted. The image data stored in the memory may be deleted at the same time when the sleep mode is canceled, or the image data may be deleted as long as the capacity of the main memory 43 allows. Further, the drive data stored in the image processing work memory 46 may not be deleted as long as the capacity of the image processing work memory 46 permits after the printing on the paper P is completed.

  In the above-described embodiment, when the sleep mode is started, the power supplied to the image processing CPU 45 and the image processing work memory 46 is completely cut off. However, when the sleep mode is started, the image processing is performed. The power supplied to only one of the CPU 45 and the image processing work memory 46 may be completely cut off, or the power supplied to at least one of the image processing CPU 45 and the image processing work memory 46 may be completely supplied. The configuration may be limited so long as it is not blocked. For example, when the image processing CPU 45 has a sleep function that operates only a part of the functional units, a configuration using the sleep function of the image processing CPU 45 may be used. Specifically, a sleep function that stops the refresh operation of the image processing work memory 46 and also stops the operation of the image processing CPU 45 may be used. In this case, it is in a low power consumption state in which only the input of the return interrupt signal from the main CPU 42 is monitored, and it can be recovered at a higher speed than when the power is turned off.

  In addition, in the above-described embodiment, the receiving unit 41 is configured to receive image data (print command) via the LAN 3, but is input via another device such as a memory card reader separately provided in the inkjet printer. The image data may be received.

  In the above-described embodiment, the main processing unit including the main CPU 42 and the main memory 43 and the image processing unit including the image processing CPU 45 and the image processing work memory 46 may be configured on different substrates or the same. It may be configured on a substrate.

  The present invention is also applicable to a liquid ejecting apparatus that ejects liquid other than ink. It can also be applied to laser printers. Further, the present invention is not limited to a printer, and can be applied to other apparatuses that perform image recording, such as a facsimile machine and a copier.

DESCRIPTION OF SYMBOLS 1 Inkjet printer 2 Inkjet head 16 Control apparatus 41 Receiving part 42 Main CPU
43 Main memory 45 Image processing CPU
46 Image processing work memory 47 Power supply unit 51 Authentication judgment unit 52 Data conversion unit 53 Transfer unit 54 Control unit 55 Sleep unit 61 Operation panel 71 Client terminal

Claims (9)

Recording means for recording an image on a recording medium;
Receiving means for receiving image data relating to an image transmitted from outside;
Arithmetic means for performing an operation for converting the image data received by the receiving means into drive data for driving the recording means;
A first memory that is a volatile memory in which the drive data converted by the computing means is stored;
Input means for inputting authentication information related to the image data or the drive data;
Authentication determination means for determining whether or not the authentication information input by the input means includes predetermined information;
Limiting means for limiting power supply to the computing means and the first memory;
A second memory for storing the image data;
Transfer means for transferring the drive data or the image data between the first memory and the second memory;
Control means for controlling the recording means, the transfer means and the restriction means,
The control means controls the transfer means to store the image data received by the receiving means in the second memory and transfer the image data stored in the second memory to the first memory. , Controlling the calculation means to convert the image data transferred to the first memory into the drive data, storing the drive data converted by the calculation means in the first memory , and the authentication After the authentication determination means determines that the information includes the predetermined information, the calculation means is calculated from the drive data stored in the first memory and the image data stored in the second memory. Controlling the recording means so that the image is recorded on a recording medium based on any of the driving data converted by
The image recording apparatus according to claim 1, wherein the image data has a data amount smaller than that of the drive data.   The control means controls the transfer means so that the image data is transferred from the second memory to the first memory after the restriction on the supply of power by the restriction means is released. The image recording apparatus according to claim 1.   The control unit is configured to limit the supply of power when a time during which neither recording by the recording unit, reception by the receiving unit, nor input to the input unit is performed exceeds a predetermined time. The image recording apparatus according to claim 1, wherein the limiting unit is controlled.   The image according to any one of claims 1 to 3, wherein the control means does not erase the image data stored in the second memory until the recording of the image by the recording means is completed. Recording device.   The control means erases the drive data stored in the first memory and the image data stored in the second memory when image recording by the recording means is completed. 5. The image recording apparatus according to 4.   The image recording apparatus according to claim 1, wherein the limiting unit completely cuts off power supply to at least one of the arithmetic unit and the first memory. When the control means determines that the image data received by the receiving means is related to normal printing, the control means stores the image data received by the receiving means in the second memory, and 2 controls the transfer means to transfer the image data stored in the memory to the first memory, and controls the calculation means to convert the image data transferred to the first memory into the drive data. The drive data converted by the computing means is stored in the first memory , and the recording is performed so that the image is recorded on a recording medium based on the drive data stored in the first memory. The image recording apparatus according to any one of claims 1 to 6, wherein the image recording apparatus controls the means.   The image recording according to claim 1, wherein the image data is data described in a page description language. Recording means for recording an image on a recording medium, receiving means for receiving image data relating to an image transmitted from the outside, and converting the image data received by the receiving means into drive data for driving the recording means Computing means for performing computations, first memory as a volatile memory in which the driving data converted by the computing means is stored, input means for inputting authentication information relating to the image data or the driving data, and Authentication determining means for determining whether or not the authentication information input by the input means includes predetermined information, limiting means for restricting power supply to the computing means and the first memory, the image A second memory for storing data, a transfer means for transferring the drive data or the image data between the first memory and the second memory, and The recording means, a control means for controlling said transfer means and said limitation means, the image data in the image recording apparatus data amount is smaller than the drive data,
The control means stores the image data received by the receiving means in the second memory, and controls the transfer means to transfer the image data stored in the second memory to the first memory. , Controlling the calculation means to convert the image data transferred to the first memory into the drive data, storing the drive data converted by the calculation means in the first memory , and the authentication After the authentication determination means determines that the information includes the predetermined information, the calculation means is calculated from the drive data stored in the first memory and the image data stored in the second memory. Causing the computer to function to control the recording means so that the image is recorded on a recording medium based on any of the drive data converted by the Program which is characterized.