JP2010044819A - Recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To lower a reduction in recording accuracy caused by a conveying error generated due to component abrasion of a conveyance device in a recording device capable of executing recording on the label surface of an optical disk using a disk tray. <P>SOLUTION: For a conveying amount of a disk tray 81 and a conveying amount of recording paper P by a conveyance driving roller 51, irrespective of execution of recording on the label surface of an optical disk Di, information equivalent to a total conveying amount calculated after production of an inkjet printer 50 is stored. For example, each time recording on the label surface of the optical disk Di, recording on the recording paper P, or insertion/ejection of the disk tray 81 is executed, a count value N obtained by totaling the number (a) of recording executing times on the label surface of the optical disk Di, the number (b) of recording executing times on the recording paper P, and the number (c) of inserting/ejecting times of the disk tray 81 is updated to be stored. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a recording apparatus that performs recording on a recording surface of a recording material.

  A recording apparatus such as an ink jet printer generally includes a transport apparatus for transporting a recording material such as recording paper. For example, in a serial head type inkjet printer, an operation for forming dots by ejecting ink onto a recording surface while reciprocating a recording head in a main scanning direction with respect to a recording material, and a sub-scanning direction (main scanning direction and Recording is executed on the recording surface of the recording material by alternately repeating the operation of conveying the recording material by a predetermined conveyance amount in the direction of crossing. Also, in a line head type ink jet printer, ink is ejected onto the recording surface of the recording material while transporting the recording material in a direction intersecting the recording head to form dots on the recording surface of the recording material. Recording is performed. That is, in a recording apparatus such as an ink jet printer, the conveyance accuracy of the recording material by the conveyance device greatly affects the recording accuracy, and the conveyance error of the recording material in the conveyance device directly leads to a decrease in recording accuracy.

  Here, the conveyance error of the recording material in the conveyance device occurs due to various factors, and one of them is due to wear of parts constituting the conveyance device. For example, in a conveyance device configured to convey a recording material by pressing the recording material against the outer peripheral surface of a conveyance driving roller on which a high frictional resistance coating is applied and rotating the conveyance driving roller, the recording material Since the outer peripheral surface of the transport driving roller is worn and the frictional force gradually decreases each time the transporting roller is transported, the transport error in the direction in which the feed amount is insufficient gradually increases.

As an example of the prior art aiming at improving the recording accuracy by correcting the conveyance error of the recording material generated in such a conveyance device, conveyance error correction by so-called test pattern recording is known (for example, patents). Reference 1). High accuracy is achieved by identifying the transport error that occurs per unit transport amount from the content of the test pattern recorded on the recording material and adding or subtracting the transport amount corresponding to the specified transport error to or from the transport control amount. Therefore, it is possible to realize a proper conveyance of the recording material and improve the recording accuracy.
JP-A-2005-313587

  By the way, in a recording apparatus such as an ink jet printer, a dedicated tray or the like (hereinafter simply referred to as “disc tray”) on which an optical disk such as a CD (compact disc) or a DVD (digital versatile disc) is mounted is transported as a transported body. A device having a function of performing recording on a label surface of an optical disk by being conveyed by an apparatus is generally known. A disk tray as a transported body often employs a thin plate-like member made of plastic or the like, and is usually made of a material harder than a recording material such as recording paper. For this reason, the wear of parts (conveying drive rollers, etc.) of the conveying device that occurs when the disc tray is conveyed is usually much larger than when the recording material such as recording paper is conveyed. Further, since the disc tray is repeatedly used, wear that occurs on the disc tray side when being transported by the transport device can also cause transport errors.

  In addition, the conventional disc tray is attached as an accessory of the printer, and there are many types in which the user manually feeds the disc tray manually. There are also printers with a structure that allows automatic loading and unloading. In such a printer, if the disk tray is also taken in and out using the above-mentioned transport device, the cost advantage is great. However, on the other hand, regardless of whether or not recording on the label surface of the optical disk is performed, wear of the components of the transport device will occur only by inserting and removing the disk tray. For this reason, in such a printer, depending on the use mode of the user, there is a possibility that the wear of the parts of the conveying device and the disc tray may rapidly progress, and the recording accuracy is lowered due to the conveyance error. May be easier.

  The present invention has been made in view of such a situation, and the problem thereof is a component of a transport apparatus in a recording apparatus capable of performing recording on a label surface of an optical disk using a transported object such as a disk tray. An object of the present invention is to reduce a decrease in recording accuracy due to a conveyance error caused by wear.

  To achieve the above object, according to a first aspect of the present invention, there is provided a recording apparatus that performs recording on a recording surface of a recording material. And a control device for controlling the transport device, the control device regardless of whether or not to record the transport amount of the transported object by the transport device on a recording material. The recording apparatus is characterized in that it stores the total transport amount or information corresponding to the total transport amount after the manufacture, and corrects the transport error in the transport device based on the total transport amount or the information corresponding thereto.

  According to such a feature, the degree of component wear of the transfer device caused by transferring the object to be transferred by the transfer device can be specified from the total transfer amount, so that depending on the degree of component wear of the transfer device. It is possible to correct the transport error. In particular, regardless of whether or not recording is performed on the recording material mounted on the transported body, the transported body is transported by adding up the transport amount when the transported apparatus transports the transported body. Thus, it becomes possible to specify the degree of wear of the parts of the conveying device caused by this very accurately. Accordingly, it is possible to accurately correct a conveyance error caused by component wear of the conveyance device according to the degree of component wear.

  Thus, according to the recording apparatus described in the first aspect of the present invention, in the recording apparatus capable of performing recording on the label surface of the optical disk using a transported object such as a disk tray, due to component wear of the transport apparatus. An effect is obtained that it is possible to reduce a decrease in recording accuracy due to a transport error that occurs.

  According to a second aspect of the present invention, in the recording apparatus according to the first aspect described above, the control device uses the transport amount of the transported body and the transport amount of the recording material by the transport device as a recording material. Regardless of whether or not recording is performed, the recording apparatus stores a total transport amount or information corresponding to the total transport amount after manufacture of the recording apparatus.

  According to such a feature, since the degree of component wear of the transport device caused by transporting the transported object or recording material by the transport device can be specified from the total transport amount, the component wear of the transport device Therefore, it is possible to more accurately perform the conveyance error correction according to the degree. In particular, regardless of whether or not recording is performed on the recording material, the total transport amount when the transport medium is transported by the transport device and the transport amount when the recording material is transported are summed up. It becomes possible to specify the degree of component wear of the conveying device caused by conveying the body or the recording material very accurately. Therefore, it is possible to more accurately correct a conveyance error caused by component wear of the conveyance device according to the degree of component wear.

  According to a third aspect of the present invention, there is provided the recording apparatus according to the second aspect described above, wherein the control device sums the transport amount of the transported body with a predetermined weight. Device.

  As described above, a conveyed object such as a disk tray is usually formed of a material harder than a recording material such as recording paper. For this reason, it is considered that the wear of the parts of the transport device that occurs during transport is often significantly greater than that during transport of the recording material. Therefore, the degree of component wear of the transport device differs between the case where the recording material is transported and the case where the transport medium such as a disk tray is transported even if the transport amount is the same. For this reason, for example, a user who frequently performs recording on the label surface of an optical disk using a transported object such as a disk tray and a user who frequently records on a recording material have the same total transport amount, but the The degree of component wear may vary.

  For this reason, in the present invention, it is preferable that the transport amount of the transported body is added with a predetermined weight. As a result, the correlation between the degree of component wear of the transfer device and the total transfer amount can always be made substantially constant regardless of the transfer frequency of the transferred object. It becomes possible to specify more accurately from the transport amount.

  According to a fourth aspect of the present invention, in the recording apparatus according to the second aspect or the third aspect, the control device weights the transport amount of the recording material according to the type of the recording material. The recording device is characterized by the fact that

  As a recording material generally used in a recording apparatus, various types of recording materials such as photographic paper, matte paper, and plain paper are in circulation, but the friction coefficient of the surface is the recording material. It depends on the type. Therefore, if the type of recording material is different, the degree of component wear of the conveying device varies even with the same conveying amount. For this reason, depending on the type of recording material used by the user, there is a possibility that the degree of component wear of the transport device may vary even if the total transport amount is the same.

  For this reason, in the present invention, it is preferable that the transport amount of the recording material is summed by weighting according to the type of the recording material. As a result, regardless of the type of recording material to be used, the correlation between the degree of component wear of the conveying device and the total conveyance amount can always be made substantially constant. It becomes possible to specify more accurately from the total transport amount.

  According to a fifth aspect of the present invention, in the recording apparatus according to any one of the first to fourth aspects described above, the control device is configured such that after the total transport amount exceeds a certain transport amount, the transport device In the recording apparatus, the conveyance error is corrected with a constant correction value.

  The conveyance force due to wear of parts of the conveyance device does not necessarily decrease in proportion to the total conveyance amount, and after the total conveyance amount reaches a certain conveyance amount, it decreases relatively slowly or almost decreases. Often not. For this reason, in the present invention, it is preferable to correct the transport error in the transport device with a constant correction value after the total transport amount exceeds a certain transport amount. As a result, it becomes unnecessary to manage the transport amount after the total transport amount exceeds a certain transport amount, or to adjust the correction value of the transport error, so that the transport control of the transport device can be simplified. It is possible to reduce the control load.

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

<Schematic configuration of inkjet printer>
First, a schematic configuration of an inkjet printer 50 as a “recording apparatus” according to the present invention will be described with reference to FIGS.
FIG. 1 is a main part plan view illustrating a schematic configuration of an ink jet printer 50, and FIG. 2 is a side view of the main part. FIG. 3 is a schematic block diagram of the inkjet printer 50.

  An ink jet printer 50 as a “recording apparatus” according to the present invention includes an automatic feeding device 70 for feeding a recording paper P as a “recording material” to the inside of the ink jet printer 50. The ink jet printer 50 includes a transport driving roller 51 and a transport driven roller 52 as a “transport device”. Further, the ink jet printer 50 includes a recording head 62 as means for performing recording by ejecting ink onto the recording surface of the recording paper P supported by the platen 53. Further, the inkjet printer 50 includes a discharge driving roller 54 and a discharge driven roller 55 as means for transporting and discharging the recording paper P after execution of recording in the transport direction YF.

  The automatic feeding device 70 includes a feeding cassette 71, a feeding roller 72, a guide slope 73, feeding guide surfaces 74 and 75, and intermediate feeding roller pairs 7a to 7c. The feeding cassette 71 is placed and accommodated in a state where a plurality of recording papers P are stacked. The feeding roller 72 is rotated by the rotational driving force of the PF motor 57. The feeding guide surfaces 74 and 75 constitute a curved feeding path as shown in the drawing. The guide slope 73 is a slope for guiding the leading edge of the recording paper P between the feed guide surface 74 and the feed guide surface 75. The intermediate feeding roller pairs 7 a to 7 c are roller pairs including a driving roller that is rotated by the rotational driving force of the PF motor 57 and a driven roller that is rotatably supported by the shaft.

  The recording paper P stacked on the feeding cassette 71 is in contact with the outer peripheral surface of the feeding roller 72 by the recording paper P at the top, and along the guide slope 73 by the rotation of the feeding roller 72. Then, the sheet is sent between the feeding guide surface 74 and the feeding guide surface 75. The recording paper P fed between the feeding guide surface 74 and the feeding guide surface 75 along the guide slope 73 advances along the feeding path by the intermediate feeding roller pairs 7a to 7c, and is transported and driven. The sheet is fed to a position where the tip reaches the contact portion between the roller 51 and the conveyance driven roller 52.

  The transport driving roller 51 has a high friction coating on the surface, and rotates by receiving the rotational driving force of the PF motor 57. The transport driven roller 52 is pivotally supported so as to be driven to rotate, and is biased by a biasing means such as a spring (not shown) in contact with the outer peripheral surface of the transport driving roller 51. The recording paper P fed by the automatic feeding device 70 is sandwiched between the transport driving roller 51 and the transport driven roller 52 and is transported on the platen 53 in the transport direction YF by the driving rotation of the transport driving roller 51.

  The recording head 62 is disposed at the bottom of the carriage 61. A large number of ejection nozzles (not shown) for ejecting ink are disposed on the head surface of the recording head 62. The carriage 61 is capable of reciprocating in the width direction X (direction intersecting the transport direction YF) while maintaining a state in which the head surface of the recording head 62 and the recording surface of the recording paper P on the platen 53 are substantially parallel. The carriage guide shaft 56 is supported. The carriage 61 is connected to an endless belt (not shown) suspended between a driving pulley (not shown) and a driven pulley (not shown) disposed on the rotation shaft of the CR motor 63. The rotational driving force of the CR motor 63 is transmitted through the endless belt and reciprocates in the width direction X.

  The platen 53 has a large number of platen ribs formed along the conveyance direction YF of the recording paper P. The recording paper P conveyed on the platen 53 is supported from the back side by the top surface of the platen rib. In the area of the recording paper P supported by the platen 53, dots are formed on the recording surface by ink ejection from the head surface of the recording head 62, and recording is performed. The distance between the head surface of the recording head 62 and the recording surface of the recording paper P is regulated to an appropriate distance by the top surface of the platen rib.

  The recording paper P conveyed on the platen 53 is configured to eject dots from the head surface of the recording head 62 to the recording surface of the recording paper P while the carriage 61 reciprocates in the width direction X, Recording on the recording surface is executed by alternately repeating the operation of conveying in the conveying direction YF by a predetermined conveying amount by the driving rotation of the driving roller 51. The recording paper P after ink ejection is sandwiched between the discharge driving roller 54 and the discharge driven roller 55, and is transported in the transport direction YF by the driving rotation of the discharge drive roller 54 and discharged. The series of recording control is executed by the recording control unit 100 as a “control device” having a microcomputer control circuit.

  The recording control unit 100 includes a ROM 101, a RAM 102, an ASIC (application specific integrated circuit) 103, a CPU (central processing unit) 104, a nonvolatile memory 105, a PF motor driver 106, a CR motor driver 107, and a head driver 108. .

  The ROM 101 stores a recording control program (firmware) necessary for controlling the ink jet printer 50 by the CPU 104. The RAM 102 is used as a work area for the CPU 104 and a storage area for image data and the like. The CPU 104 executes a recording control program, and performs arithmetic processing for executing recording control of the inkjet printer 50 and other necessary arithmetic processing. The nonvolatile memory 105 stores various data necessary for arithmetic processing by the recording control program. The ASIC 103 performs various calculations for controlling the speeds of the PF motor 57 and the CR motor 63, and sends motor control signals based on the calculation results to the PF motor driver 106 and the CR motor driver 107. Further, the ASIC 103 calculates and generates a control signal for the recording head 62 and sends it to the head driver 108 to control ink ejection of the recording head 62. Further, the ASIC 103 has an interface function with the personal computer 301.

  The rotary encoder 31 for detecting the rotation amount of the transport driving roller 51 is composed of a rotary scale 311 and a rotary scale sensor 312. The rotary scale 311 has a large number of slits formed on a concentric circle at equal intervals along the outer periphery, and rotates in conjunction with the rotation of the transport driving roller 51. The rotary scale sensor 312 is a sensor for detecting a slit of the rotary scale 311. An output signal of the rotary scale sensor 312 that changes with the rotation of the transport driving roller 51 is output to the CPU 104 via the ASIC 103.

  The linear encoder 32 for detecting the movement amount of the carriage 61 includes a linear scale 321 and a linear scale sensor 322. The linear scale 321 is disposed in the vicinity of the carriage 61 substantially in parallel with the width direction X, and a large number of slits are formed at equal intervals. The linear scale sensor 322 is a sensor for detecting a slit of the linear scale 321 and is mounted on the carriage 61. An output signal of the linear scale sensor 322 in which the period of the pulse corresponding to the movement amount of the carriage 61 in the width direction X changes with the movement speed is output to the CPU 104 via the ASIC 103.

  The PW sensor 33 for detecting the recording paper P is a non-contact optical sensor and is disposed at the bottom of the carriage 61. The tray operation button 34 is a button for the user to operate a disk tray support device 80 described later. The detection signal of the PW sensor 33 and the operation signal of the tray operation button 34 are output to the CPU 104 via the ASIC 103.

  Furthermore, the ink jet printer 50 includes a disk tray support device 80. The disc tray support device 80 includes a disc tray 81, a left support arm 82, and a right support arm 83. A disk tray 81 as a “conveyed body” is supported by a left support arm 82 and a right support arm 83 so as to be movable in the transport direction YF, and has a mounting portion 811 for mounting an optical disk. The mounting portion 811 is formed with a convex portion 812 into which a hole provided in the center of the optical disc is fitted. Hereinafter, the configuration of the disc tray support device 80 will be described in detail with reference to FIG.

<Disc tray support device 80>
FIG. 4 is a plan view of a principal part illustrating the configuration of the disk tray support device 80.
The left support arm 82 has a convex portion 821 formed on one end side pivoted to the disc tray 81 and a convex portion 822 formed on the other end side engaged with the left guide groove 8L. The left guide groove 8L is provided on the back surface side of the member constituting the feeding guide surface 75 (FIG. 2). In the right support arm 83, a convex portion 831 formed on one end side is pivotally connected to the disc tray 81, and a convex portion 832 formed on the other end side is engaged with the right guide groove 8R. The right guide groove 8R is provided on a tray support plate (not shown) that supports the disc tray 81 from the bottom surface side.

  In the disc tray support device 80 having such a configuration, the left support arm 82 and the right support arm 83 are folded (at a posture substantially parallel to the width direction X) when the disc tray 81 is located closest to the reverse feed direction YR. State). Then, as the disc tray 81 moves in the transport direction YF from this state, the left support arm 82 is rotationally displaced along the left guide groove 8L, and the right support arm 83 is rotated along the right guide groove 8R. Dynamic displacement. With such a support structure, the disc tray support device 80 supports the disc tray 81 so as to be movable in the carrying direction YF and the reverse feeding direction YR with a moving width that is significantly longer than the length of the disc tray 81 in the carrying direction YF. can do. As a result, the disc tray 81 built in the rear side of the inkjet printer 50 can be moved to a position that largely protrudes from the front discharge port. Further, since the disk tray 81 can be downsized to the minimum necessary size, it is possible to prevent the ink jet printer 50 from being enlarged by incorporating the disk tray 81 therein.

<Conveyance control of disc tray 81>
Next, conveyance control of the disc tray 81 by the recording control unit 100 will be described with reference to FIGS.

5 to 8 are main part plan views of the ink jet printer 50.
The ink jet printer 50 includes a rotating gear 84. The rotating gear 84 rotates in both directions by the rotational driving force of a dedicated motor (not shown) whose rotation is controlled by the recording control unit 100. The tooth portion of the rotating gear 84 meshes with a tooth portion (not shown) provided on the side portion of the disk tray 81.

  When the tray operation button 34 is pressed from the state in which the disc tray 81 is in the standby position (FIG. 5), the recording control unit 100 first rotates the rotary gear 84 in the rotation direction indicated by the symbol A. As a result, the disc tray 81 moves to a position where the front end in the transport direction YF comes into contact with the contact portion between the transport drive roller 51 and the transport driven roller 52, and the vicinity of the front end is sandwiched between the transport drive roller 51 and the transport driven roller 52. (FIG. 6). From this state, the recording control unit 100 rotates the transport driving roller 51 in the rotation direction (hereinafter referred to as “forward rotation direction”) in which the disc tray 81 is transported in the transport direction YF. Thereby, the disk tray 81 is conveyed in the conveyance direction YF by the rotation of the conveyance drive roller 51 and protrudes from the discharge port on the front side of the inkjet printer 50 (FIG. 7). In this state, the ink jet printer 50 is in a state in which the user can mount the optical disc Di as the “recording material” on the mounting portion 811 of the disc tray 81.

  When the tray operation button 34 is pressed again from this state, the recording control unit 100 carries the conveyance drive roller in the rotation direction (hereinafter referred to as “reverse rotation direction”) in which the disc tray 81 is conveyed in the reverse feed direction YR. Rotate 51. Thereby, the disc tray 81 is conveyed in the reverse feeding direction YR by the rotation of the conveyance driving roller 51. Then, the recording control unit 100 stops the rotation of the transport driving roller 51 when the disc tray 81 is fed back to a predetermined position. As a result, the disc tray 81 is stopped at a position where the label surface of the optical disc Di becomes a predetermined recording start position, and recording on the label surface of the optical disc Di is performed in the same procedure as the recording execution procedure on the recording paper P. Can be executed (FIG. 8).

  From this state, the recording control unit 100 detects the presence / absence and mounting position of the optical disc Di with the PW sensor 33, and when the optical disc Di is correctly mounted on the mounting portion 811, the recording control on the label surface of the optical disc Di is performed. Start. On the other hand, when the optical disc Di cannot be detected, the disc tray 81 is sent back to the standby position (FIG. 5), and when the mounted state of the optical disc Di is not normal, an error display or the like is performed.

  After the recording on the label surface of the optical disk Di is completed, the recording control unit 100 transports the disk tray 81 in the transport direction YF to a position where it protrudes from the discharge port on the front side of the inkjet printer 50 (FIG. 7). . In this state, the ink jet printer 50 is in a state in which the user can remove the recorded optical disc Di from the mounting portion 811 of the disc tray 81. When the tray operation button 34 is pressed again, the recording control unit 100 sends the disc tray 81 back to the standby position (FIG. 5).

<Correction control for transport error>
Next, conveyance error correction control by the recording control unit 100 will be described with reference to FIGS. 9 and 10.

FIG. 9 is a graph schematically illustrating an example of a change in conveyance error accompanying an increase in the conveyance counter in the inkjet printer 50. FIG. 10 shows an example of the data table of the conveyance correction value corresponding to the value of the conveyance counter.
The recording control unit 100 adds up the transport amount of the disc tray 81 by the transport drive roller 51 and the transport amount of the recording paper P after the manufacture of the ink jet printer 50 regardless of whether recording is performed on the label surface of the optical disc Di. Information corresponding to the total transport amount (hereinafter simply referred to as “total transport amount”) is stored. More specifically, the recording control unit 100 stores the total number of times of adding together the number of times of recording execution a on the label surface of the optical disc Di, the number of times of recording execution b of the recording paper P, and the number of times c of the disc tray 81 being put in and out. A transport counter is provided. The count value N of the transport counter is stored and held in, for example, the nonvolatile memory 105. The recording control unit 100 updates the count value N of the transport counter each time recording on the label surface of the optical disc Di, recording on the recording paper P, or loading / unloading of the disc tray 81 is executed.

The count value N of the transport counter is calculated by the following equation (1).

N = a + mb + nc (1)

“m” and “n” are predetermined values, and the degree of wear of the transport drive roller 51 is different when recording on the label surface of the optical disc Di, when recording on the recording paper P, and when the disc tray 81 is put in and out. Constants for weighting corresponding to different things. The present invention preferably performs such weighting. Accordingly, the correlation between the degree of wear of the transport drive roller 51 and the count value N of the transport counter can be made substantially constant regardless of the transport frequency of the disk tray 81. The degree of wear can be specified more accurately from the count value N of the conveyance counter.

  For example, if the wear of the transport driving roller 51 is smaller when recording on the recording paper P than when recording on the label surface of the optical disc Di, the value of the constant m is set to an appropriate value less than 1. It ’s fine. For example, if the wear of the transport drive roller 51 is greater when the disc tray 81 is inserted and removed than when recording on the label surface of the optical disc Di, the value of the constant n can be set to an appropriate value exceeding 1. good. These constants indicate the transport amount per time of the disk tray 81 or the recording paper P when recording on the label surface of the optical disk Di, when recording on the recording paper P, and when the disk tray 81 is loaded or unloaded. A difference in wear of the transport driving roller 51 generated per unit transport amount at that time can be specified in advance through experiments or the like and determined based on them.

  The recording control unit 100 corrects the transport error of the disc tray 81 or the recording paper P by the transport driving roller 51 based on the count value N of the transport counter. The count value N of the transport counter is information corresponding to the total transport amount. For example, the total transport amount can be obtained by multiplying a certain transport amount. This constant transport amount is, for example, the average transport amount of the disc tray 81 or the recording paper P when recording on the label surface of the optical disc Di, when recording on the recording paper P, and when the disc tray 81 is put in and out. It can be derived from the value or the like.

  The recording control unit 100 refers to the conveyance correction value table (FIG. 10) when recording on the label surface of the optical disc Di and when recording on the recording paper P, and determines the conveyance correction value based on the count value N of the conveyance counter. decide. The conveyance correction value table is a data table stored in the nonvolatile memory 105 in advance. In this conveyance correction value table, a conveyance correction value table for recording on the label surface of the optical disc Di and a conveyance correction value table for recording on the recording paper P may be provided separately.

  Here, the count values N1 to N11 of the transport counter in the transport correction value table are predetermined count values, and the correction values A to K are transport correction values corresponding to the count values N1 to N11, respectively. For example, the correlation between the transport error per inch generated when transported by the transport drive roller 51 as shown in FIG. 9 and the count value N of the transport counter is specified in advance by experiments and the like. It can be determined as appropriate. For example, the experiment may be performed by repeating the conveyance of the disk tray 81 and the conveyance of the recording paper P about 1000 times in the unused inkjet printer 50 having the same structure and measuring the conveyance error every predetermined number of times in the process.

  From the count value N of the transport counter, which is information corresponding to the total transport amount, the degree of wear of the transport drive roller 51 caused by transporting the disc tray 81 or the recording paper P by the transport drive roller 51 is shown. Can be identified. That is, by determining the transport correction value based on the count value N of the transport counter, it is possible to perform transport error correction according to the degree of wear of the transport drive roller 51. In particular, regardless of whether or not recording is performed on the label surface of the optical disc Di mounted on the disc tray 81, the conveyance drive when the disc tray 81 is conveyed by the conveyance drive roller 51 is added up, so that the conveyance drive is performed. It becomes possible to specify the degree of wear of the roller 51 very accurately. Accordingly, it is possible to accurately correct a transport error caused by the wear of the transport drive roller 51 according to the degree of the wear.

  As described above, according to the present invention, in the recording apparatus such as the ink jet printer 50 that can perform recording on the label surface of the optical disc Di using the disc tray 81, it is caused by the wear of the parts of the transport device such as the transport driving roller 51. A decrease in recording accuracy due to a conveyance error can be reduced.

  In the present invention, it is preferable to add the transport amount of the recording paper P regardless of whether recording is performed on the recording surface. That is, in the present invention, regardless of whether or not recording is performed on the label surface of the optical disc Di or the recording paper P, all the transport amounts when the disc tray 81 and the recording paper P are transported by the transport driving roller 51 are added up. Is preferred. As a result, it becomes possible to specify the degree of wear of the transport drive roller 51 very accurately, so that the transport error caused by the wear of the transport drive roller 51 is more accurately corrected according to the degree of wear. It becomes possible to do.

  Further, as can be understood from the graph shown in FIG. 9, the conveyance force due to the wear of the conveyance drive roller 51 does not necessarily decrease in proportion to the count value N (total conveyance amount) of the conveyance counter. After the count value N of the counter reaches a certain count value, it often decreases relatively slowly or hardly decreases. For this reason, after the count value N of the transport counter exceeds a certain count value (for example, about 1000 times), the transport error in the transport driving roller 51 may be corrected with a constant transport correction value. . As a result, it becomes unnecessary to manage the conveyance amount after the count value N of the conveyance counter exceeds a certain count value, adjust the conveyance correction value, and the like, so that the conveyance control of the conveyance driving roller 51 can be simplified. The control load on the recording control unit 100 can be reduced.

  Furthermore, in the present invention, it is preferable to add the subdivided weighting according to the type of the recording paper P and add up the transport amount of the recording paper P. As a result, regardless of the type of recording paper P to be used, the correlation between the degree of wear of the transport drive roller 51 and the total transport amount can always be made substantially constant. It becomes possible to specify the degree more accurately from the total transport amount. More specifically, the constant m of the recording paper P is subdivided according to the type of the recording paper P. For example, the constant m1 for photo paper, the constant m2 for plain paper, and the constant m3 for matte paper are set. Then, the count value N may be calculated. The type of the recording paper P can be specified from, for example, information on the type of the recording paper P set by the user using a printer driver, an operation panel (not shown) of the inkjet printer 50, or the like. Further, the constant m may be further subdivided and set according to the size of the recording paper P.

  It goes without saying that the present invention can be implemented even if the total conveyance amount itself is accumulated and stored in the conveyance counter. And this invention is not limited to the said Example, A various deformation | transformation is possible within the range of the invention described in the claim, and they are also contained in the scope of the present invention. Needless to say.

The principal part top view which illustrated schematic structure of the inkjet printer. The principal part side view which illustrated schematic structure of the inkjet printer. 1 is a schematic block diagram of an inkjet printer. The principal part top view which illustrated the structure of the disc tray support apparatus. The principal part top view of an inkjet printer. The principal part top view of an inkjet printer. The principal part top view of an inkjet printer. The principal part top view of an inkjet printer. The graph which showed an example of the change of the conveyance error accompanying the increase in a conveyance counter. The data table of the conveyance correction value corresponding to the value of a conveyance counter.

Explanation of symbols

50 Inkjet printer, 51 Conveyance drive roller, 52 Conveyance driven roller, 53 Platen, 54 Discharge drive roller, 55 Discharge driven roller, 56 Carriage guide shaft, 70 Automatic feeding device, 80 Disc tray support device, 81 Disc tray, 82 Left Support arm, 83 Right support arm, Di optical disc, P recording paper, X width direction, YF transport direction

Claims (5)

In a recording apparatus that performs recording on a recording surface of a recording material,
A transport apparatus for transporting a transported body or a recording material on which a recording material is mounted;
A control device for controlling the transport device,
The control device stores a total transport amount after the manufacture of the recording apparatus or information corresponding thereto regardless of whether or not to record the transport amount of the transported object by the transport device on a recording material. And
A recording apparatus, wherein a transport error in the transport device is corrected based on the total transport amount or information corresponding thereto.   2. The recording apparatus according to claim 1, wherein the control device performs the recording regardless of whether or not to record the transport amount of the transported object and the transport amount of the recording material on the recording material by the transport device. A recording apparatus for storing a total transport amount or information corresponding to the total transport amount after manufacture of the apparatus.   The recording apparatus according to claim 2, wherein the control apparatus adds the transport amount of the transported body with a predetermined weight.   4. The recording apparatus according to claim 2, wherein the control device adds the recording material transport amount by weighting according to the type of the recording material.   5. The recording apparatus according to claim 1, wherein the control device corrects a transport error in the transport device with a constant correction value after the total transport amount exceeds a certain transport amount. 6. A recording apparatus characterized by that.

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