JP4587171B2 - Recording apparatus and recording apparatus control method - Google Patents

Description

  The present invention relates to a recording apparatus, a recording system, and a recording start position adjusting method, and more specifically, a carriage on which a recording head having a plurality of recording elements arranged in a predetermined direction is crossed with the arrangement direction of the recording elements. The present invention relates to adjustment of a recording start position when performing borderless printing in which recording is performed on the entire surface of a recording medium in a recording apparatus that performs recording by scanning the recording medium in a direction.

  For example, as information output devices in word processors, personal computers, facsimiles, and the like, printers that record desired information such as characters and images on a sheet-like recording medium such as paper or film are widely used.

  Various types of recording methods are known for printers, but inkjet methods have recently been used for reasons such as non-contact recording on recording media such as paper, easy colorization, and high quietness. In particular, the configuration is a serial in which a recording head for ejecting ink according to desired recording information is mounted and recording is performed while reciprocating scanning in a direction crossing the feeding direction of a recording medium such as paper. Recording methods are generally widely used because they are inexpensive and easy to downsize.

  In recent years, an increasing number of inkjet printers are capable of so-called “borderless printing” in which recording is performed on the entire surface of a recording medium (recording is performed so that there is no blank portion at the end of the recording medium).

  When realizing such borderless printing, the recording data having a recording area larger than the recording medium used for recording is generated, and the portion of the ink protruding from the recording medium is the ink provided on or below the platen. It is discharged onto the absorber (see, for example, Patent Document 1).

Also, in such a recording apparatus, in order to shorten the data transfer time from the host device and improve the recording speed, the printer driver installed in the host device uses an image (raster block unit including a plurality of rasters). Data is generated and transferred to a recording apparatus, and the recording apparatus expands received image data in units of raster blocks in a buffer so as to be converted into recording data (see, for example, Patent Document 1).
JP 2003-127341 A JP 2000-099295 A

  However, when borderless printing is performed in the recording apparatus that receives image data in units of raster blocks from the host device as described above, the following problems occur.

  FIG. 11 is a diagram illustrating an example of the relationship between the size of a recording medium, a recording target range (recording target range), and the size of image data. In the figure, reference numeral 111 denotes a recording medium, 112 denotes a recording target range by the recording apparatus, and 113 denotes image data. In FIG. As shown in the drawing, the size of the image data 113 is dw in the scanning direction (x direction) and dh in the transport direction (y direction). The size of the recording target range 112 is aw in the scanning direction (x direction) and ah in the transport direction (y direction). The size of the recording medium 111 is pw in the scanning direction (x direction) and ph in the transport direction (y direction). Then, pw <aw <dw and ph <ah <dh. Comparing the areas, 111 <112 <113. In the illustrated example, 111, 112, and 113 are centered.

  In this way, printing that is recorded on the entire surface of the recording medium and has no margin is expressed as borderless printing. In addition to this case, the present invention can be applied to, for example, a case where a margin is left slightly at the end of the recording medium, or a case where the margin is eliminated only at a predetermined end of the recording medium. For example, the present invention can also be applied to a case where there is no margin on the left end portion, right end portion, or rear end side (upstream side in the paper feed direction) of the recording medium. When such borderless printing is performed, image data that is outside the range of the recording medium 111 and is not recorded on the recording medium is unnecessary, and thus must be discarded after being received.

  However, when image data is transferred in units of blocks of a plurality of rasters as described above, the unit for discarding image data is also in units of raster blocks. Accordingly, if the half of the difference between the height (length in the paper feed direction) dh of the image data and the height (length in the paper feed direction) ph of the recording medium is not a multiple of the height of the raster block, an extra Raster data remains, recording starts from a position shifted by an extra raster, and the start position of borderless printing in the paper feed direction shifts from the position intended by the user.

  The present invention has been made in view of the above situation, and an object of the present invention is to accurately control the start position of borderless printing in the paper feed direction in a recording apparatus that receives image data in units of raster blocks.

A recording position as one aspect of the present invention that achieves the above object is a recording apparatus that performs recording on a recording medium using a recording head having a plurality of recording elements arranged in a predetermined direction.
Paper feeding means for feeding the recording medium to a recording position;
A reception buffer for storing image data in units of raster blocks each including a plurality of predetermined rasters together with a control command transferred from a connected host device;
Determining means for determining whether to perform borderless printing for recording on the entire surface of the recording medium based on information on the size of the image data included in the control command and information on the size of the recording medium;
When performing the borderless printing, a predetermined number of rasters, a length in the transport direction of the image data, and a length in the transport direction of a recording target range predetermined on the outside of the recording medium , based on the not transferred to the recording head raster number N (N is a natural number) and calculation means for calculating,
In order to perform recording on a recording medium fed to the recording position, image data corresponding to the number of rasters N (N is a natural number) not transferred from the head raster of the image data to the recording head is discarded . , Control means for controlling the start of the recording operation by transferring the image data at the (N + 1) th (N is a natural number) raster position to the recording head .

  Furthermore, the above object is achieved by a recording start position adjustment method for a recording apparatus corresponding to the above recording apparatus, a computer program for causing a computer apparatus to execute the recording start position adjustment method, and a storage medium storing the computer program. Is done.

  According to the present invention, in a recording apparatus that receives image data in units of a plurality of rasters from a host device, when performing borderless printing for recording on the entire surface of the recording medium, the recording medium protrudes from the length in the conveyance direction. The amount of image data is calculated as a multiple of a plurality of rasters as a unit, and the calculated amount of image data is discarded without being used for conversion of recording data, and the recording medium is conveyed in accordance with the number of remaining rasters. The recording start position in the direction is adjusted.

  Therefore, in a recording apparatus that receives image data in units of a plurality of rasters, it is possible to accurately control the start position of borderless printing in the conveyance direction of the recording medium.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the components described in the following embodiments are merely examples, and are not intended to limit the scope of the present invention only to them.

  In the embodiments described below, a recording system including a printer using an inkjet recording method as a recording apparatus and a personal computer as a host device will be described as an example.

  In this specification, “recording” (sometimes referred to as “printing”) is not only for forming significant information such as characters and figures, but also for human beings visually perceived regardless of significance. Regardless of whether or not it has been manifested, it also represents a case where an image, a pattern, a pattern, or the like is widely formed on a recording medium or the medium is processed.

  “Recording medium” refers not only to paper used in general recording apparatuses but also widely to cloth, plastic film, metal plate, glass, ceramics, wood, leather, and the like that can accept ink. Shall.

  Furthermore, “ink” (sometimes referred to as “liquid”) is to be interpreted broadly in the same way as the definition of “recording (printing)” above. It represents a liquid that can be used for forming a pattern or the like, processing a recording medium, or processing an ink (for example, solidification or insolubilization of a colorant in ink applied to the recording medium).

  Further, the “recording element” collectively refers to an ejection port (nozzle) or a liquid channel communicating with the ejection port and an element that generates energy used for ink ejection unless otherwise specified.

  In addition, “reading (processing)” means discarding or removing data without using it.

  FIG. 1 shows a recording system as an embodiment according to the present invention. In FIG. 1, 101 is a personal computer (hereinafter also simply referred to as PC) as a host device, and 102 is an inkjet printer (hereinafter referred to as a recording apparatus). 103 is a cable for connecting the host device and the printer.

  A printer driver for the printer 102 is installed in the PC 101. For example, when recording is instructed during execution of an application, the printer driver is activated and image (image) data is generated based on information specified by the user. A raster book composed of a plurality of rasters is transferred as a unit to the printer 102 through the cable 103 together with a control command.

  When the printer 102 receives the control command and raster block unit image data, the printer 102 analyzes the control command, converts the raster block data into print data corresponding to one scan of the print head, and executes printing.

  FIG. 14 is a perspective view of the printer 102 described in the present embodiment. Reference numeral 3 denotes an ASF that sends out a plurality of recording media stacked one by one to a recording portion. The recording medium sent out from the ASF 3 is conveyed to the recording unit by the LF roller 6 and a pinch roller (not shown).

  The LF roller 6 conveys the driving force of the LF motor 5 by the LF gear 4 and conveys the recording medium in the sub-scanning direction that is intermittently driven based on the recording command.

  A platen 9 is disposed for transporting the recording medium. A carriage 1 on which an ink jet recording head is mounted is disposed at a portion facing the platen 9, and an ink tank that stores ink for supplying ink to the ink jet recording head is mounted on the carriage 1.

  The carriage 1 is guided by a guide shaft 2 and is driven by a carriage motor (not shown) via a timing belt (not shown) to scan the recording head in the main scanning direction based on a recording command.

  A so-called serial recording operation for forming an image on a recording medium is performed by alternately repeating sub-scanning by the LF roller 6 and main scanning by the carriage 1. The recording medium for which recording has been completed is discharged out of the apparatus by a discharge roller 11.

  The platen 9 is provided with a platen opening 10, and a platen absorber 12 (not shown) is provided immediately below the platen opening 10.

  FIG. 2 is a block diagram illustrating a control configuration of the printer 102.

  As shown in FIG. 2, the printer 102 includes an interface (I / F) unit E <b> 1 that controls reception of commands and image data transmitted from the host device and communication of various control signals, a RAM E <b> 5, and a carriage that drives the carriage. A motor driver E6 that controls a motor, a conveyance motor that conveys a recording medium, etc., a recording head driver E7 that drives a recording head according to the recording data, an MPU E8 that controls the entire apparatus, and a RAM or ROM to directly transfer data DMA unit E9, program corresponding to control sequence, required table, ROM E10 storing other fixed data, EEPROM E11 storing various information and data in an electrically rewritable state, print head temperature and ink remaining Sensing including various sensors and operation switches These parts are connected to each other by a system bus.

  In the RAM E5, a reception buffer E2 for temporarily storing received commands and image data, a work buffer E3 used as a development area for image data and a work area for program execution, and scanning of the recording head are supported. Each area of the print buffer E4 in which recording data of the above format is stored is provided.

  Hereinafter, data processing at the time of borderless printing in the present embodiment will be described in detail. It is assumed that the relationship among the size of the recording medium, the recording target range, and the size of the image data is the same as that shown in FIG.

  When a recording start command is received from the host device via the I / F unit E1 and stored in the reception buffer E2, a command analysis processing task is activated. FIG. 3 is a flowchart of command analysis processing.

  In the command analysis process, first, various parameters are initialized (step S301). Thereafter, a command analysis execution flag indicating that command analysis processing is being performed is set to notify the host device of the start of the job (step S302), and command reception and analysis processing is started (step S303). This command reception and analysis process is executed until a job end command is received or a job cancel message is received. When the command reception and analysis process ends, the command analysis execution flag that has been set is reset, and the end of the job is notified to the host device (step S304).

  The command reception and analysis process in step S303 will be described in more detail with reference to the flowchart of FIG.

  First, the data in the reception buffer E2 is analyzed in units of 1 byte (step S401), it is determined whether the commands received in S402 to S407 are the corresponding commands, and if applicable, command dispatch processing is performed.

  Specifically, in step S402, it is determined whether it is a job end command (job_end), and if applicable, the process proceeds to step S408 to execute job end processing. In step S403, it is determined whether or not it is a page margin command (page_margin). If the command is applicable, the process proceeds to step S409 to execute page margin setting processing. In step S405, it is determined whether or not it is a raster block skip command (raster_block_skip), and if so, the process proceeds to step S410 to execute a raster block skip process. In step S407, it is determined whether or not the data is multi-raster data (multi_raster_image). If yes, the process proceeds to step S411 to execute multi-raster data processing.

  Here, multi-raster data, which is an embodiment of a raster block, will be described. In normal raster data, a header indicating the contents of the raster data is attached to the head portion of the raster data for each raster. On the other hand, in multi-raster data, for example, a header indicating the data contents of 16 rasters included in the raster block is at the head of the data, and data for 16 rasters follows the header. Here, a code indicating a delimiter is inserted between the previous raster and the next raster. Note that the number of rasters included in one multi-raster data, that is, the unit of raster blocks is not limited to 16, and may be 8 or 32, for example.

  Further, command processing other than the above is executed in step S412 as other processing including error processing, but details thereof are omitted here.

  Hereinafter, the processing executed in steps S409 to S411 will be described in more detail with reference to FIGS.

  FIG. 5 is a flowchart showing details of the page margin setting process executed in step S409. Here, the size information of the image data 113 generated by the printer driver shown in FIG. 11 is read from the reception buffer E2 and set to the corresponding global variable. Specifically, in step S501, the origin in the x direction, which is the scanning direction of the recording head, is set in a variable print_data_x0. In step S502, the origin in the y direction, which is the feeding direction of the recording medium, is set in the variable print_data_y0. The length dw in the x direction is set to the variable print_data_width, and the length dh in the y direction is set to the variable print_data_length in step S504.

  FIG. 6 is a flowchart showing details of the raster block skip process executed in step S410. In step S601, it is determined whether or not a paper feed execution message has already been issued based on whether or not the flag flag_sendmesLoad is set. If the paper feed execution message has not been issued, the page start process in step S602 is executed, and the process proceeds to step S603. On the other hand, if a paper feed execution message has been issued, the process proceeds to step S603 without executing step S602. In step S602, the page start process determines whether or not borderless printing is performed from the size of the image data and the size of the recording medium obtained by the page margin setting process described with reference to FIG. This is a process for determining whether or not to discard the image data from the data size. Details will be described later. In the present embodiment, the image data and the recording medium are centered on each other, and the amount of the image data that protrudes from the recording medium is equal in the vertical and horizontal directions.

  In step S603, the raster block skip amount is acquired and stored in a variable raster_block_skip representing the raster block skip amount. In step S604, it is determined whether or not the borderless flag (flag_over_edge) set in step S602 is set. If not set, the process proceeds to step S609. On the other hand, if the borderless flag is set, the flow advances to step S605 to indicate the number of raster blocks to be discarded based on the difference between the print target range of the printer and the length of the image data size in the y direction. It is determined whether or not the amount of discarded raster block (raster block not used for recording) (reject_raster_block) is larger than 0 (sign is positive or negative). If the raster block read-out amount is positive, the process proceeds to step S609. If the raster block read-out amount is negative, the process proceeds to step S606.

  In step S606, it is determined whether the raster block skipping amount is larger than the raster block skip amount acquired in step S603. If the raster block skipping amount is larger than the raster block skip amount, the process proceeds to step S607 and the raster block skipping amount is determined. The value is updated to a value obtained by subtracting the raster block skip amount from the raster block discard amount. On the other hand, if the raster block skip amount is equal to or less than the raster block skip amount, the process advances to step S608 to update the raster block skip amount to a value obtained by subtracting the raster block skip amount from the raster block skip amount, and step S609. Proceed to In step S609, a paper feed message for sending the recording medium by a distance corresponding to the raster block skip amount is transmitted. Although details are not described here, a command to the motor driver E6 is sent to transport the recording medium.

  FIG. 7 is a flowchart showing details of the multi-raster data processing executed in step S411. In step S701, whether or not a paper feed execution message has already been issued is determined based on whether or not the flag flag_sendmesLoad is set. If the paper feed execution message has not been issued, the page start process in step S702 is executed, and the process proceeds to step S703. On the other hand, if a paper feed execution message has been issued, the process proceeds to step S703 without executing step S702. The page start process in step S702 is the same process as in step S602.

  In step S703, it is determined whether or not the borderless flag (flag_over_edge) set in step S702 is set. If not set, the process proceeds to step S706. On the other hand, if the borderless flag is set, the flow advances to step S704 to indicate the number of raster blocks to be discarded based on the difference between the print target range of the printer and the length of the image data in the y direction. It is determined whether or not the raster block discarding amount (reject_raster_block) is greater than 0 (sign is positive or negative). If the raster block read-out amount is positive, the process proceeds to step S705. If the raster block read-out amount is negative, the process proceeds to step S706.

  In step S705, the image data is discarded from the reception buffer E2 in units of raster blocks (specifically, the reception buffer E2 is accessed, but the raster blocks to be discarded are not read out, or all the rasters are discarded). Even if data is read from the block, the processing to be subsequently performed is not performed on the discarded raster block). Thereafter, the process proceeds to step S708, where the number of rasters contained in the read-out raster block is subtracted from the raster block read-out amount to update the raster block read-out amount. In step S706, image data processing is executed to convert the image data into a data format corresponding to scanning with the recording head (vertical / horizontal conversion). In this way, a desired number of raster blocks are discarded and image data is processed.

  For example, FIG. 12 shows a specific example of the discard amount when performing borderless printing. In the figure, 111 indicates a recording medium, 112 indicates a recording target range, 113 indicates image data, and the numbers shown on the left side Represents the number of rasters included in the range. As the specification of the recording target range 112, for example, the distance between the line 113d and the recording medium may be 1.9 to 2.1 mm.

  This will be described with reference to FIGS. In FIG. 13, 9 indicates a platen and 111 indicates a recording medium. Reference numeral 113g denotes an image recorded with ink based on the image data 113. An arrow A indicates the conveyance direction of the recording medium.

  Here, FIG. 13A is a diagram assuming that the image data 113 is recorded based on all image data without being discarded. Therefore, in addition to the recording medium 111, an image 113g for 118 rasters is recorded on the downstream side in the transport direction outside the recording medium, and ink is consumed wastefully.

  For this reason, as shown in FIG. 13B, a part (64 rasters) of the image data 113 is discarded so that an image 113g of 54 rasters downstream in the transport direction outside the recording medium is recorded. That is, if a portion of the image data that is not used for recording in the transport direction is discarded, recording is not performed based on that portion, and wasteful consumption of ink can be prevented.

  In the example shown in FIG. 12, the amount of protrusion of the image data 113 from the recording medium 111 is 5 mm, of which the recording target range is up to 2 mm outside the recording medium (adjacent to the downstream side in the conveyance direction of the recording medium). 112. Accordingly, 3 mm of the image data 113 adjacent to the outside of the recording target range 112 is discarded. This 2 mm is, for example, a margin for preventing margins at the end even when the recording medium is conveyed obliquely.

  At a resolution of 600 dpi, 5 mm corresponds to 118 rasters, and 2 mm corresponds to 47 rasters. Therefore, the number of rasters to be discarded (data to be removed) (113) is 71 rasters. On the other hand, since the unit of multi-raster (the number of rasters included in a raster block) is 16 rasters, 64 rasters indicated by 113a which is 4 multi-rasters (4 raster blocks) are discarded (position of boundary 113d). (The raster block containing the raster corresponding to is not discarded). The remaining 7 rasters (71-64) indicated by 113b and 47 rasters indicated by 112 are recorded outside the recording medium (downstream in the conveyance direction of the recording medium). Accordingly, a position corresponding to 113c that is 54 rasters away from the origin in the Y-axis direction is set as a recording start position (recording start position in the transport direction).

  That is, in this case, after the recording medium is fed to a desired paper feeding position (conveyance position), the recording operation is started by scanning the recording head. Then, in the recording in the first scan, 54 rasters (from 1 raster to 54 rasters) from the beginning of the remaining recording data after the removal processing are out of the recording medium (before the recording medium (downstream in the transport direction)). Recording is performed, and recording is performed on the recording medium from the 55th raster.

  As for the platen, the platen opening 10 is provided in the region including the region 112 and the region 113b. As shown in FIG. 13B, even if recording is performed outside the recording medium, the ink is not generated. This prevents the recording medium (or platen) from becoming dirty.

  Next, the page start process executed in steps S602 and S702 will be described in detail with reference to the flowchart of FIG. In step S801, as described later, as a borderless determination process, if the size of the image data is larger than the size of the recording medium based on the size of the image data obtained by the page margin setting process and the size of the recording medium, there is no margin. It is determined that it is printing. If borderless printing is determined, a borderless flag (flag_over_edge) is set.

  In step S802, it is determined whether the borderless flag is set. If the borderless flag is set, the process proceeds to step S803, the range of data to be discarded is calculated, and the process proceeds to step S804. On the other hand, if the borderless flag is not set in step S802, the process proceeds to step S804. In step S804, a paper feed message is transmitted. The sheet is fed by this message, and the head of the sheet is cued by the amount specified by the parameter of this message.

  FIG. 9 is a flowchart for explaining in detail the borderless determination process executed in step S801. Here, as described above, from the size of the image data obtained by the page margin setting process and the size of the recording medium, if the size of the image data is larger than the size of the recording medium, it is determined that the printing is borderless. The image data is compared with the positions (coordinates) of the top, bottom, left, and right edges of the recording medium, and a borderless flag (flag_over_edge) is set when the image data protrudes from the recording medium at any edge.

  Specifically, in step S901, it is determined whether the left end portion of the image data protrudes from the left end portion of the recording medium. In step S903, the upper end portion of the image data protrudes from the upper end portion of the recording medium. In step S905, it is determined whether or not the right edge of the image data protrudes from the right edge of the recording medium. In step S907, the lower edge of the image data is the lower side of the recording medium. It is determined whether or not it protrudes from the end. If it is determined in any of steps S901, S903, S905, and S907 that the image protrudes, a borderless flag (flag_over_edge) is set in steps corresponding to S902, S904, S906, and S908.

  FIG. 10 is a flowchart showing in detail the read-ahead range calculation process executed in step S803. Here, it is a process of calculating the number of raster blocks and the number of rasters to be discarded on the upper side of the recording medium (the leading side of the paper feed for starting recording).

  In step S1001, the amount of image data protruding from the left end of the recording target range is calculated as a read-out column amount. In step S1002, the difference between the recording target range and the upper edge position of the image data is divided by the length of the raster block in the feed direction to obtain the number of raster blocks (reject_raster_block) to be discarded. This value is an integer. In step S1003, the number of rasters (reject_raster) remaining after the division in step S1002 is obtained. In step S1004, the distance corresponding to the remaining raster number (reject_raster) is subtracted from the cueing amount (load_start_point) at the time of feeding to update the cueing amount. As a result, the recording start position in the feed direction is subtracted by the number of rasters remaining in the discarding process.

  As described above, according to the present embodiment, when the image data is larger than the recording target range of the printer, the portion of the image data that protrudes from the upper end (recording start position) of the recording medium is discarded in units of raster blocks. It is possible to correct an excess raster number shift that is not discarded in the process, and to accurately control the start position of borderless printing in the paper feed direction.

(Other embodiments)
As described above, when the margin for preventing the borderless printing from failing is 2 mm, recording is performed outside the recording medium more than the margin of 2 mm (the raster block including the raster corresponding to the position of the boundary 113d is not discarded). However, the present invention is not limited to this method.

  For example, as shown in FIG. 13C, a process for recording outside the recording medium with less than 2 mm as the margin may be performed. In this process, the image data of the raster block including the raster corresponding to the position of the boundary 113d is discarded (80 raster data is discarded and 38 raster image data is recorded outside the recording medium). .

  The above-described discarding process has been described for the data stored in the reception buffer. However, the present invention is not limited to this, and for example, it may be performed in the access process for the data stored in the work buffer.

  Further, the form of the recording apparatus is not limited to the one that receives image data from the host device, but also includes the form in which an interface unit that accesses a storage medium such as a memory card is provided and read from the memory card without going through the host device. You may apply.

  Further, the form of the recording apparatus is not limited to a serial type printer, and a printer using a full line type recording head having a length corresponding to the maximum recording width of a recording medium that can be recorded by the printer may be used.

  The present invention may be applied to a system composed of a plurality of devices, or may be applied to an apparatus composed of a single device.

  In the present invention, a software program (in this embodiment, a program corresponding to the flowcharts shown in FIGS. 3 to 10) for realizing the functions of the above-described embodiment is directly or remotely supplied to a system or apparatus, and This includes the case where the object is also achieved by reading and executing the supplied program code by the computer of the system or apparatus. In that case, as long as it has the function of a program, the form does not need to be a program.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. That is, the claims of the present invention include the computer program itself for realizing the functional processing of the present invention.

  In this case, the program may be in any form as long as it has a program function, such as an object code, a program executed by an interpreter, or script data supplied to the OS.

  As a recording medium for supplying the program, for example, flexible disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, CD-RW, magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R).

  As another program supply method, a client computer browser is used to connect to an Internet homepage, and the computer program of the present invention itself or a compressed file including an automatic installation function is downloaded from the homepage to a recording medium such as a hard disk. Can also be supplied. It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the scope of the present invention.

  In addition, the program of the present invention is encrypted, stored in a storage medium such as a CD-ROM, distributed to users, and key information for decryption is downloaded from a homepage via the Internet to users who have cleared predetermined conditions. It is also possible to execute the encrypted program by using the key information and install the program on a computer.

  In addition to the functions of the above-described embodiments being realized by the computer executing the read program, the OS running on the computer based on an instruction of the program is a part of the actual processing. Alternatively, the functions of the above-described embodiment can be realized by performing all of them and performing the processing.

  Furthermore, after the program read from the recording medium is written to a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion board or The CPU or the like provided in the function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are also realized by the processing.

It is a figure which shows the recording system as embodiment which concerns on this invention. FIG. 2 is a block diagram illustrating a control configuration of the recording apparatus in FIG. 1. It is a flowchart of a command analysis process. It is a flowchart of a command reception and analysis process. It is a flowchart which shows the detail of a page margin setting process. It is a flowchart which shows the detail of a raster block skip process. It is a flowchart which shows the detail of multi-raster data processing. It is a flowchart of a page start process. It is a flowchart explaining a borderless determination process in detail. It is a flowchart which shows a read-out range calculation process in detail. It is a figure which shows the example of the relationship between the size of a recording medium, a recording target range, and the size of image data. It is a figure explaining the specific example of a discard process. It is a figure explaining the specific example of a discard process. It is a figure which shows the structure of the recording device based on this invention.

Claims (6)

A recording apparatus that performs recording on a recording medium using a recording head having a plurality of recording elements arranged in a predetermined direction,
Paper feeding means for feeding the recording medium to a recording position;
A reception buffer for storing image data in units of raster blocks each including a plurality of predetermined rasters together with a control command transferred from a connected host device;
Determining means for determining whether to perform borderless printing for recording on the entire surface of the recording medium based on information on the size of the image data included in the control command and information on the size of the recording medium;
When performing the borderless printing, a predetermined number of rasters, a length in the transport direction of the image data, and a length in the transport direction of a recording target range predetermined on the outside of the recording medium , based on the not transferred to the recording head raster number N (N is a natural number) and calculation means for calculating,
In order to perform recording on the recording medium fed to the recording position, image data corresponding to the number of rasters N (N is a natural number) not transferred from the head raster of the image data to the recording head is discarded . And a control means for controlling the start of the recording operation by transferring the image data at the (N + 1) th (N is a natural number) raster position to the recording head . Size of the image data is greater than the recording target range in the recording apparatus, the calculating means, based on the length in the transport direction of the length and the recording target range in the conveying direction of the recording medium, the recording The recording apparatus according to claim 1, wherein the amount of image data not transferred to the head is calculated. The calculating means divides the difference between the number of rasters of the image data and the number of rasters in the recording target range by the predetermined number of rasters, thereby obtaining the number of rasters of the image data not transferred to the recording head. The recording apparatus according to claim 1, wherein the recording apparatus calculates the recording apparatus.   The recording apparatus according to claim 1, further comprising a conversion unit that performs vertical / horizontal conversion processing of image data.   The recording apparatus according to claim 1, wherein the recording apparatus performs recording by causing the recording head to scan a recording medium. A control method for a recording apparatus for recording on a recording medium using a recording head having a plurality of recording elements arranged in a predetermined direction,
A paper feeding step of feeding the recording medium to a recording position;
A receiving step for storing image data in a unit of a raster block composed of a plurality of predetermined rasters together with a control command transferred from a connected host device;
A determination step of determining whether to perform borderless printing for recording on the entire surface of the recording medium based on information on the size of the image data included in the control command and information on the size of the recording medium;
When performing the borderless printing, a predetermined number of rasters, a length in the transport direction of the image data, and a length in the transport direction of a recording target range predetermined on the outside of the recording medium , based on the not transferred to the recording head raster number N (N is a natural number) calculation step of calculating a
In order to perform recording on the recording medium fed to the recording position, image data corresponding to the number of rasters N (N is a natural number) not transferred from the head raster of the image data to the recording head is discarded . , N + 1 th (N is a natural number) control method for a recording apparatus characterized by and a control step of controlling the start of the recording operation performed transferred from the image data of the raster position on the recording head.

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