CN108883633B - Ink jet recording apparatus and recording control method for ink jet recording apparatus - Google Patents
Ink jet recording apparatus and recording control method for ink jet recording apparatus Download PDFInfo
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- CN108883633B CN108883633B CN201780019811.8A CN201780019811A CN108883633B CN 108883633 B CN108883633 B CN 108883633B CN 201780019811 A CN201780019811 A CN 201780019811A CN 108883633 B CN108883633 B CN 108883633B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
- B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering
Abstract
Provided are an ink jet recording apparatus and a recording control method for the ink jet recording apparatus, wherein the quality of a recording operation can be maintained more stably. An inkjet recording apparatus includes: a conveying unit that performs a conveying operation of moving a conveying belt on which a recording medium is placed in a predetermined conveying direction to convey the recording medium; an image recording section for performing a recording operation of applying ink to the recording medium being conveyed; and a control unit that starts the recording operation at a timing of conveyance by a predetermined distance corresponding to attenuation of stretching vibration generated in the conveyor belt in accordance with a change in acceleration of the conveyor belt in the conveyance direction at the start of the conveyance operation after the conveyance operation is started by the conveyance unit.
Description
Technical Field
The present invention relates to an inkjet recording apparatus and a recording control method for the inkjet recording apparatus.
Background
Conventionally, there is an ink jet recording apparatus that records an image or the like by ejecting ink from nozzles and landing the ejected ink on a recording medium. The ink jet recording apparatus can perform a recording operation on recording media of various thicknesses and materials.
In an inkjet recording apparatus, ink is ejected while a recording head provided with nozzles and a recording medium are moved relative to each other by a conveyance unit, and the ink is landed on various portions of the surface of the recording medium. As a drawing member for moving the recording head and a mounting member for mounting and moving the recording medium, a tape (belt) made of various resins or the like is often used. In particular, in an ink jet recording apparatus that transports a recording medium in a transport direction while discharging ink from a fixed recording head (line-type recording head) having nozzles arranged in a width direction that intersects with the transport direction of the recording medium and is mainly perpendicular thereto over the entire width of the recording medium, it is possible to perform a recording operation at high speed.
In such an ink jet recording apparatus, there are problems as follows: when the recording head and the recording medium are moved relative to each other, the recording medium is not normally placed on the placement surface, and may contact or wrap the recording head, thereby failing to perform a recording operation properly or damaging the recording head. In contrast, the following techniques have been proposed (patent document 1): the state of the recording medium being conveyed is detected, and when an abnormality such as floating of the recording medium to the extent of contacting the recording head is detected, conveyance of the recording medium is stopped. By starting the recording operation after the abnormality is eliminated, it is possible to continue normal image recording while ensuring the safety of the ink jet recording apparatus.
Patent document 1: japanese patent application laid-open publication No. 2011-126131
Disclosure of Invention
However, since the member forming the conveyance surface of the recording medium in the conveyance unit and the conveyance member moving the conveyance surface have somewhat little elasticity, elastic vibration occurs in the expansion and contraction direction by locally applying a force corresponding to a rapid acceleration change occurring at the start of movement. Thus, there are problems as follows: a local shift occurs at each position of the conveyance surface with respect to the amount of movement of the entire conveyance member, and the position of the ink on the recording medium is fluctuated, thereby degrading the quality of the recording operation.
The invention aims to provide an ink jet recording apparatus and a recording control method of the ink jet recording apparatus, which can maintain the quality of the recording operation more stably.
In order to achieve the above object, the invention according to claim 1 is an inkjet recording apparatus including:
a conveyance unit that performs a conveyance operation of moving a conveyance member on which a recording medium is placed in a predetermined conveyance direction to convey the recording medium;
a recording unit that performs a recording operation of applying ink to the transported recording medium; and
and a control unit that starts the recording operation at a timing of conveying the conveying member by a predetermined distance corresponding to attenuation of stretching vibration generated in the conveying member in accordance with a change in acceleration of the conveying member in the conveying direction at the start of the conveying operation after the conveying operation is started by the conveying unit.
The invention described in claim 2 is characterized in that, in the ink jet recording apparatus described in claim 1,
the inkjet recording apparatus includes a storage unit that stores the predetermined distance.
The invention described in claim 3 is the ink jet recording apparatus described in claim 1 or 2,
the inkjet recording apparatus includes a position acquisition unit that acquires position information of a recording medium being conveyed,
in the control unit, the control unit is provided with a control unit,
acquiring information on a content interruption position of the recording target data related to the recording operation and acquiring information on a recording interruption position on the recording medium by the position acquisition unit when the recording operation of the recording unit to the recording medium and the conveyance operation of the recording medium by the conveyance unit are interrupted,
when the recording operation and the conveying operation are restarted after the interruption, the conveying operation for conveying the recording medium in the conveying direction is started such that the recording interruption position starts moving from a conveyance restart position located upstream of a recording position where ink is applied to the recording medium by the recording unit by the predetermined distance in the conveying direction, and the recording operation for the recording medium is started from the content interruption position at a timing when the recording medium is conveyed by the predetermined distance.
The invention described in claim 4 is characterized in that, in the ink jet recording apparatus described in claim 3,
the control unit starts a transport operation of transporting the recording medium in the transport direction after the recording interruption position is moved to the transport resumption position by the transport unit based on the acquired position information when the recording operation and the transport operation are resumed after the interruption.
The invention described in claim 5 is characterized in that, in the ink jet recording apparatus described in claim 4,
the conveyance unit moves the recording interruption position to the conveyance resumption position by moving the conveyance member on which the recording medium is placed in a direction opposite to the conveyance direction.
The invention described in claim 6 is characterized in that, in the ink jet recording apparatus described in claim 3,
the transport resumption position is determined within a reference distance range set for the recording position based on attenuation of stretching vibration in the transport direction generated in the transport member in accordance with a change in acceleration in the transport direction of the transport member at the start of the transport operation, and the predetermined distance is determined as a distance from the determined transport resumption position to the recording position.
The invention described in claim 7 is the ink jet recording apparatus described in any one of claims 3 to 6,
the control means causes the transport means to perform an operation related to suspension of the transport operation after suspending the recording operation when the recording operation and the transport operation are suspended.
The invention described in claim 8 is the ink jet recording apparatus described in any one of claims 3 to 7,
the control unit increases the transport speed of the recording medium at a constant acceleration when the transport operation is resumed.
The invention described in claim 9 is the ink jet recording apparatus described in any one of claims 3 to 8,
the inkjet recording apparatus includes an operation receiving unit that receives a command operation related to resumption of the recording operation and the conveying operation,
the control unit restarts the transport operation of the transport unit and the recording operation of the recording unit when the command operation is received after the recording operation and the transport operation are terminated.
The invention described in claim 10 is the ink jet recording apparatus described in any one of claims 1 to 9,
the conveying member is an annular belt member arranged between a plurality of rotating members,
the conveying unit moves the conveying member by rotating one of the plurality of rotating members.
The invention described in claim 11 is the ink jet recording apparatus described in any one of claims 1 to 10,
the predetermined distance is shorter than a moving distance during a period in which the conveying member is accelerated at the start of the conveying operation.
The invention described in claim 12 is the ink jet recording apparatus described in any one of claims 1 to 11,
the control unit adjusts the ejection timing of the ink ejected from the recording unit during acceleration and deceleration of the conveyance member according to the speed of the conveyance member.
The invention described in claim 13 is a recording control method for an inkjet recording apparatus including: a conveyance unit that performs a conveyance operation of moving a conveyance member on which a recording medium is placed in a predetermined conveyance direction to convey the recording medium; and a recording unit that performs a recording operation of applying ink to the recording medium that is conveyed, the recording control method of the inkjet recording apparatus including:
and a control step of starting the recording operation at a timing of conveying the transport member by a predetermined distance corresponding to attenuation of stretching vibration generated in the transport member in accordance with a change in acceleration of the transport member in the transport direction at the start of the transport operation after the transport operation is started by the transport unit.
According to the present invention, the ink jet recording apparatus can maintain the quality of the recording operation more stably.
Drawings
Fig. 1 is an overall perspective view of an inkjet recording apparatus according to an embodiment of the present invention.
Fig. 2 is a view schematically showing a surface of the head unit facing the conveying surface.
Fig. 3 is a block diagram showing a functional configuration of the inkjet recording apparatus.
Fig. 4A is a diagram illustrating a moving state and a moving operation of the recording medium when image recording is resumed.
Fig. 4B is a diagram illustrating a moving state and a moving operation of the recording medium when image recording is resumed.
Fig. 5 is a flowchart showing a control procedure of an image recording control process in the inkjet recording apparatus.
Fig. 6 is a flowchart showing a control procedure of an interrupt process invoked in the image recording control process.
(symbol description)
1: an ink jet recording apparatus; 10: a conveying part; 11: a drive roller; 12: a conveying belt; 13: a driven roller; 14: a conveying motor; 15: an encoder; 16: pressing the roller; 17: a peeling roller; 20: an image recording section; 21C, 21K, 21M, 21Y: a head unit; 211: an ejection head; 22: a head driving section; 30: a medium detection unit; 31: a sensor; 40: a control unit; 41: a CPU; 42: a ROM; 43: a RAM; 50: a communication unit; 60: a storage unit; 61: vibration convergence information; 70: an operation display unit; 71: a display unit; 72: an operation receiving unit; 80: a bus; p: a recording medium.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Fig. 1 is an overall perspective view of an inkjet recording apparatus 1 according to an embodiment of the present invention.
The inkjet recording apparatus 1 includes a conveying unit 10 (conveying means), an image recording unit 20 (recording means), a medium detecting unit 30, a control unit 40 (control means), and the like.
The conveying unit 10 includes a driving roller 11, a conveying belt 12 (conveying member, belt member), a driven roller 13, a conveying motor 14, an encoder 15 (position acquiring unit), a pressing roller 16, a peeling roller 17, and the like. The endless conveyance belt 12 is stretched between a drive roller 11 and a driven roller 13 (both are collectively referred to as a plurality of rotary members), and is rotated by the drive roller 11 being rotated by the drive of a conveyance motor 14. The outer peripheral surface of the conveying belt 12 serves as a conveying surface and moves relative to the image recording section 20 in a predetermined conveying direction, thereby performing a conveying operation of moving the recording medium P placed on the conveying surface in the conveying direction. As the conveying belt 12, a conveying belt made of a material that flexibly bends at a contact surface with the driving roller 11 and the driven roller 13 and reliably supports the recording medium P is used, and examples thereof include a belt made of a resin such as rubber, a steel belt, and the like. The conveyance belt 12 has a material and/or a structure that adsorbs the recording medium P, and thus the recording medium P can be more stably placed on the conveyance belt 12. In this case, a structure for peeling the recording medium P from the conveying belt 12 may be further provided at a position downstream of the image recording section 20 in the conveying direction.
The driven roller 13 rotates with the movement of the conveyor belt 12.
The recording medium P is not particularly limited, and a fabric or the like continuous in the conveying direction is used here, and a plurality of images recorded at appropriate intervals on the recording medium P are dried by an unillustrated post-processing apparatus, and are wound or shaken off and/or cut individually.
The conveyance motor 14 rotates the drive roller 11 at a rotation speed corresponding to a control signal from the control unit 40. The conveyance motor 14 can also reverse the rotation of the drive roller 11 in the direction opposite to the normal conveyance direction. Thereby, the transport belt 12 transports the recording medium P at a transport speed corresponding to the rotation speed of the drive roller 11.
Here, the encoder 15 is a rotary encoder that detects the amount of rotation of the drive roller 11 to measure the amount of movement and the position (conveyance position) of the conveyance surface and the recording medium P on the conveyance surface. In addition, the encoder 15 may measure the rotation amount of the driven roller, or may directly measure the movement amount of the conveyor belt 12. Alternatively, the encoder 15 may detect the rotational operation amount of the conveyance motor 14.
The pressing roller 16 presses the recording medium P supplied to the mounting surface of the transport belt 12 against the mounting surface, thereby eliminating the floating of wrinkles and the like from the mounting surface.
The peeling roller 17 peels the recording medium P from the conveyance surface and conveys the recording medium P to the post-processing apparatus by pulling the recording medium P conveyed while being adsorbed to the conveyor belt 12 with a predetermined pressure.
The medium detector 30 detects the surface of the recording medium P before being carried on the carrier belt 12 to a position facing the head unit 21, and detects a mounting abnormality such as floating of the recording medium, dust on the recording medium P, and the like. The medium detector 30 is preferably provided upstream of the head unit 21 by a distance that enables the recording medium P to stop moving before the detection portion of the abnormality reaches the position facing the head unit 21 when the recording medium P is stopped from being conveyed due to the abnormality being detected. Alternatively, instead of providing a sufficient distance between the medium detection unit 30 and the head unit 21, a collision prevention mechanism for an abnormal portion of the recording medium P to the head unit 21 may be provided between the medium detection unit 30 and the head unit 21, or a sufficient distance may be provided between the medium detection unit 30 and the head unit 21, and a collision prevention mechanism for an abnormal portion of the recording medium P to the head unit 21 may be provided between the medium detection unit 30 and the head unit 21.
The control unit 40 controls the operations of the respective units of the inkjet recording apparatus 1 as a whole.
The image recording section 20 performs a recording operation of recording (forming) an image by ejecting ink from the nozzles and landing (applying) the ink on an upper surface (a surface opposite to a side contacting the conveying surface) of the recording medium P. Here, the image recording section 20 has a plurality of head units 21, and 4 head units 21Y, 21M, 21C, and 21K are illustrated here, but the present invention is not limited thereto. The head units 21 eject inks of different colors, for example, inks of respective colors such as yellow, magenta, cyan, and black, supplied from ink storage portions, not shown. The head units 21 are each provided with nozzles in a width direction within a recordable width range of the recording medium P of a predetermined size (the above-described maximum width dimension) within a plane parallel to the conveyance plane, and are capable of ejecting ink.
Fig. 2 is a view schematically showing a surface (nozzle surface) of the head unit 21K facing the conveyance surface.
Note that the head units 21C, 21M, and 21Y also have the same configuration, and therefore, description thereof is omitted.
The head unit 21K is provided with a plurality of (16 in this case) discharge heads 211, in which the discharge heads 211 have nozzle openings arranged at a predetermined interval (nozzle interval) on the bottom surface, for example, at an interval of about 141 μm corresponding to 360dpi (dot per inch). The two discharge heads 211 are grouped, and the nozzle openings of the discharge heads 211 are alternately arranged in the width direction, whereby image recording with a total recording resolution of 720dpi (about 70.5 μm in nozzle interval) can be performed. By arranging the groups of the ejection heads 211 in a staggered lattice shape, a line-type recording head is configured in which nozzle openings are arranged at uniform intervals in the width direction in the recordable width range. That is, the head unit 21K is fixed during the image recording operation, and sequentially ejects ink to different positions in the conveyance direction at predetermined intervals (conveyance direction intervals) according to the conveyance of the recording medium P, thereby recording an image by one pass (one pass). The conveyance direction interval, that is, the recording resolution in the conveyance direction is determined by the ejection frequency from the nozzles, the conveyance speed, and the like, and may be equal to or different from the above-described 720 dpi.
Fig. 3 is a block diagram showing a functional configuration of the inkjet recording apparatus 1 according to the present embodiment.
The inkjet recording apparatus 1 includes a control unit 40, a conveyance motor 14 and an encoder 15 of a conveyance unit 10, a head driving unit 22 of an image recording unit 20, a sensor 31 of a medium detection unit 30, a communication unit 50, a storage unit 60 (storage means), an operation display unit 70, a bus 80, and the like.
The control unit 40 performs a control operation for overall controlling the overall operation of the inkjet recording apparatus 1. The control Unit 40 includes a CPU 41(Central Processing Unit), a ROM 42(Read Only Memory), a RAM43 (Random Access Memory), and the like. The CPU 41 performs various arithmetic processes to execute processes related to various controls. Control programs related to various controls are stored in the ROM 42 and stored. As the ROM 42, a mask ROM or a readable and writable nonvolatile memory is used.
The RAM43 provides the CPU 41 with a storage space for work, and temporarily stores data and various settings. As the RAM43, various volatile memories such as SRAM and DRAM are used.
The conveyor motor 14 rotates the drive roller 11 in accordance with a control signal from the controller 40, thereby rotating the conveyor belt 12. The rotation speed of the conveyance motor 14 can be changed according to the image quality required for recording an image. When the conveyor belt 12 is stopped or when the movement is resumed, the movement speed of the conveyor belt 12 can be accelerated/decelerated in accordance with a predetermined speed profile. The conveyance motor 14 can convey the recording medium P in the reverse direction to the conveyance direction. The speed of the reverse conveyance is preferably lower than the normal conveyance speed.
The conveyance motor 14 may include a member for rotating and moving the pressing roller 16 and the peeling roller 17.
The encoder 15 detects the rotation amount of the drive roller 11 at predetermined time intervals to measure the conveyance speed and position of the recording medium P. The measurement data of the encoder 15 is processed by the control section 40 and fed back as a control signal to the adjustment of the operation speed of the conveyance motor 14 and the ink ejection timing of each head unit 21 of the image recording section 20. Further, when the image recording is interrupted halfway, the adjustment to the set position is used for acquiring the position of the recording medium P at the timing of the interruption and then restarting the image recording. When the conveyance motor 14 conveys the recording medium P in the reverse direction, the encoder 15 can obtain the position of the recording medium P by subtracting the position from the position of the recording medium P in accordance with the reverse conveyance.
The head driving unit 22 outputs a driving signal for operating the ink ejection mechanism in the ejection head 211 of each head unit 21, and ejects ink from the opening of the nozzle to be operated at an appropriate timing. These drive signals are output in parallel to the respective head units 21 (ejection heads 211). The drive signal is synchronously output to an encoder (not shown) that measures the transport speed (position) at which the recording medium P is transported by the transport unit 10. As the ink ejection mechanism, for example, a piezoelectric ink ejection mechanism that ejects ink by applying a voltage to a piezoelectric element provided along an ink flow path communicating with a nozzle and deforming the piezoelectric element to apply a pressure to the ink in the ink flow path in a predetermined pressure pattern, a thermal ink ejection mechanism that applies a pressure to the ink and ejects the ink by applying a pressure to the ink by heating the ink in the ink flow path by passing a current through a heating wire and causing a change in volume by vaporizing a part of the ink by heating the ink, and the like are used.
The sensor 31 detects floating of the recording medium P, dust on the recording medium P, and the like. As the sensor 31, for example, a sensor including an emitting portion that emits a laser beam from the conveyance surface at a predetermined height in the width direction and a detecting portion that detects the laser beam on the opposite side of the conveyance surface with respect to the width direction to detect interception of the laser beam by a floating portion, dust, or the like, or a line sensor that detects color unevenness of the surface of the recording medium P due to dust, a shadow of the floating portion, or the like by imaging the upper surface of the recording medium P, or the like is used.
The communication section 50 acquires recording target image data, a print job, and outputs a status signal relating to image recording from an external computer terminal, print server, or the like.
The storage unit 60 stores the recording target image data (recording target data) acquired via the communication unit 50, the processing data thereof, and the like. The storage unit 60 stores vibration convergence information 61, which is information 61 such as a distance and time required for convergence of the stretching vibration of the conveyor belt 12 generated along with the start of movement of the conveyor belt 12 of the conveyor unit 10 when the start of the movement of the conveyor belt 12 is started. In addition, the storage unit 60 may store various execution programs related to image recording and adjustment inspection, and the CPU 41 may read and load the execution programs into the RAM43 for use when executing the execution programs. As the storage unit 60, for example, an HDD (Hard disk drive) or a flash memory is used, and a RAM or the like may be used at the same time.
The operation display unit 70 includes: a display unit 71 for displaying an input operation reception screen and status information of a user; and an operation receiving unit 72 (operation receiving means) for receiving an input operation by a user and outputting an operation signal to the control unit 40. Here, the operation display unit 70 includes, for example, a liquid crystal screen provided with a touch sensor and a driver thereof. Alternatively, the display unit 71 may be a display screen of another display system such as an organic EL display, or may be an LED lamp for displaying the status. Further, the operation receiving unit 72 may be provided with a push switch, a rotary switch, or the like instead of the touch panel, or may be provided with a push switch, a rotary switch, or the like in addition to the touch panel.
The bus 80 is a transmission path for transmitting and receiving signals between the control unit 40 and other components.
Next, an image recording operation in the inkjet recording apparatus 1 of the present embodiment will be described.
Fig. 4A and 4B are diagrams illustrating a moving state and a moving operation of the recording medium when image recording is resumed.
In the inkjet recording apparatus 1 of the present embodiment, as described above, a plurality of images can be repeatedly and continuously recorded on an adjacent area on the recording medium P or a plurality of recording media P that are continuous in the conveyance direction. At this time, when the medium detection unit 30 detects an abnormality in the recording medium P, the image recording operation is interrupted and the conveyance of the recording medium P is stopped.
On the other hand, after the interruption of the recording operation, as shown in fig. 4A, when the image recording operation is resumed after removing dust, wrinkles, and the like, the conveyance motor 14 and the like are rotated in the reverse direction to convey the recording medium P slightly in the reverse direction, and after moving to the upstream side of the recording position x1 (positions x3 to x4 during the time period from t32 to t 41), the conveyance is resumed in the normal conveyance direction (t42), and the image recording is resumed from the timing at which the position at which the image recording was interrupted (recording interruption position xp1) coincides with the landing position of the ink ejected from the head unit 21 (recording position x 1).
In the inkjet recording apparatus 1 using the line head, since the transport speed is high, when the movement of the transport belt 12 by the transport unit 10 is rapidly stopped or the movement is restarted, for example, when the movement of the transport belt 12 is stopped (the speed is decreased) or restarted (the speed is increased) at a constant acceleration by changing the acceleration stepwise as shown here, a large acceleration change occurs at the position of the step (timings t42, t 51). At this time, a force for causing the conveyance belt 12 to follow the change in the rotation speed of the drive roller 11 is locally applied to the contact portion between the conveyance belt 12 and the drive roller 11. On the other hand, in the contact portion between the driven roller 13 and the conveying belt 12, since the driven roller 13 does not immediately generate a change in the rotational speed equal to that of the driving roller 11 due to inertia or the like of the driven roller 13, expansion and contraction according to the elastic force thereof occurs in the portion between the driving roller 11 and the driven roller 13 of the conveying belt 12 as shown by the superimposed drawing (thick solid line) with respect to the changes in speed and position (thick solid line) when not affected by the acceleration change at p1, p2, v1, and v2 in fig. 4A. The thin solid line is used for a schematically explained line, and as described later, the actual vibration frequency, amplitude, and attenuation rate (attenuation characteristic) differ depending on various conditions.
At the timing t51 when the acceleration returns to zero, the rotation speed of the drive roller 11 is easily and quickly stabilized due to the rotational resistance of the driven roller 13 and the like, and the stretching vibration is also quickly attenuated (p2, v2), while at the timing t42 immediately after the restart of the movement of the conveyor belt 12, the conveyor belt 12 is extended as the rotation operation of the drive roller 11 starts, and thereafter the rotation of the driven roller 13 is less likely to follow the increase in the rotation speed of the drive roller 11, and therefore the damping vibration (stretching vibration) is temporarily generated (up to the timing t13) in the conveying direction (p1, v 1). The damping vibration is first order and/or higher order vibration having both contact points with the drive roller 11 and the driven roller 13 as fixed ends. As a result, since a shift occurs between the conveyance amount obtained by the encoder 15 and a local position on the conveyor belt 12, and the shift amount differs for each position on the conveyor belt 12, it is difficult to record an image (to land ink) at a correct position while the amplitude of the damping vibration is large enough to be non-negligible in terms of maintaining the image quality.
The size of the image is not negligible, but depends on the image quality accuracy required for the image, but can be determined to be a predetermined ratio (for example, 5% to 50% or more) or the like with respect to the image resolution in the conveying direction, that is, the conveying direction interval. By this setting or the like, it is also possible to determine whether or not the image recording of the period v2 is possible. When image recording is performed in the period v2 and the distance d1 is shorter than the moving distance during the acceleration period (timings t42 to t51), that is, when acceleration is not zero and the conveyance speed changes during the restart of image recording (at the time of acceleration and deceleration), the ink ejection timing is adjusted in order to keep the conveyance direction interval constant, based on the measurement value of the encoder 15 (the rotation speed of the drive roller 11, that is, the speed of movement of the conveyance belt 12).
Further, although the damping vibration occurs due to the change in acceleration when the movement is temporarily stopped, when the deceleration of the conveyance speed is started, the vibration of expansion and contraction easily and rapidly converges as in the period v2, and when this influence is taken into consideration, the image recording may be simply interrupted before the deceleration is started. Further, since image recording is inevitably interrupted before the deceleration of the conveyance speed is finished, that is, the conveyance is stopped, there is no need to consider the influence on the recorded image.
In the inkjet recording apparatus 1 of the present embodiment, the recording of an image is not performed until the damping vibration associated with the expansion and contraction of the conveyor belt 12 is sufficiently reduced, and the recording interruption position xp 1/recording resumption position of the image is adjusted so as to be reliably aligned before and after the interruption of the image recording.
As shown in fig. 4B, when an abnormality is found in the recording medium P being conveyed and the recording operation and the conveying operation are interrupted during the recording operation of images on the continuous recording medium P, first, the recording of images on the recording medium P is immediately stopped at a recording interruption position xp1 in the recording range indicated by hatching on the recording medium P. Immediately thereafter, the operation of stopping the conveyance operation of the recording medium P is started at the timing when the recording interruption position xp1 moves to the position x2 along the conveyance direction, and the conveyance operation is stopped in a state where the recording interruption position xp1 reaches the position x 3.
When the image recording operation is restarted, the recording medium P is once conveyed in the reverse direction to a position where the recording interruption position xp1 overlaps the conveyance restart position x4 in the conveyance direction. The conveyance resumption position x4 is set at a position separated by a distance d1 (predetermined distance) upstream of the recording position x1 in the conveyance direction. Then, from this state, the conveyance of the recording medium P in the conveyance direction is restarted, and when the recording interruption position xp1 reaches the recording position x1, the image recording is restarted from the image recording on the next line of the line of pixels formed as the recording interruption position xp 1. Further, in the case where a plurality of head units 21 are provided as in the inkjet recording apparatus 1 of the present embodiment, or in the case where a plurality of rows of nozzles are arranged in the conveyance direction on the nozzle surface of the head units 21, when the recording operation is simultaneously interrupted, the positions at which image recording is resumed by each nozzle row and each color are also different from each other.
The distance d1 set at this time is, as described above, a distance necessary for the amplitude of the damped vibration of the transport belt 12 in the transport direction to be small enough to maintain the image quality compared to the transport direction interval of the recording pixels of the head unit 21, that is, to be damped to be less than a predetermined ratio with respect to the transport direction interval. Therefore, the distance d1 is determined based on the attenuation rate (attenuation, attenuation characteristic) of the amplitude depending on the material of the conveying belt 12, the distance between the drive roller 11 and the driven roller 13, and the speed change pattern of the drive roller 11 when the conveying operation is resumed. Here, the material of the conveying belt 12 and the distance between the driving roller 11 and the driven roller 13 are fixed values in the inkjet recording apparatus 1, and a plurality of speed change patterns of the driving roller 11 can be set according to the image recording mode, and therefore, the distance d1 may be set individually according to the plurality of settings, or the maximum distance among the distances may be set to a single distance d 1. The distance d1 can be determined as a distance obtained by adding a predetermined offset value to the shortest distance required for maintaining the image quality or a distance obtained by multiplying the shortest distance by a predetermined number. In addition, a reference distance range dm having a minimum value of the distance d1 is set as an allowable offset range for the settable distance d 1.
Further, when image recording is restarted by considering also the damping vibration generated at the timing t51 at which acceleration ends and a constant speed is reached (acceleration becomes zero), the conveyance restart position x4 is set in accordance with the moving distance d1a of the recording medium P in the period of the sum of the duration of acceleration from when conveyance is restarted at the timing t41 until the timing t51 and the duration of the period v2 (timings t51 to t52) at which damping vibration occurs, and the position x1a coincides with or is upstream of the recording position x 1.
Fig. 5 is a flowchart showing a control procedure of the control section 40 of the image recording control process in the inkjet recording apparatus 1 according to the present embodiment.
This image recording control process is started by receiving a print job or the like transmitted from an external server, terminal device, or the like.
When the image recording control process is started, the control unit 40(CPU 41) performs an initial operation (step S101). Examples of the initial operation include detection of the remaining amount of ink, confirmation of placement of the recording medium, and confirmation of operation of the conveyance motor 14. The control section 40 analyzes the acquired print job to perform various initial settings, and adjusts the acquired image data of the recording object as necessary (step S102).
The control unit 40 starts the operation of the conveyance motor 14 and starts the operation of the medium detection unit 30 (step S103). Then, the control unit 40 causes the image recording unit 20 to start the image recording operation (step S104). The control unit 40 determines whether or not there is no abnormality in the detection of the recording medium P by the medium detection unit 30 (step S105), and if it determines that there is an abnormality (no in step S105), calls an interrupt process and executes it (step S108).
After the interrupt processing, the control unit 40 determines whether or not to restart the image recording operation (step S109), and if it is determined that the image recording operation has been restarted (yes in step S109), returns the process to step S105. If it is determined that the image recording control process has not been restarted (no in step S109), the control unit 40 ends the image recording control process.
In the determination processing in step S105, if it is determined that there is no abnormality in the detection of the recording medium P (yes in step S105), the control section 40 determines whether or not all the image records set in the print job have been completed (step S106). If it is determined that the process has not been completed (no in step S106), the control unit 40 returns the process to step S105.
When it is determined that all the set image recordings have been completed (yes in step S106), the control unit 40 performs various processes related to the completion of the image recording (step S107). The control unit 40 stops the conveyance motor 14 and performs an operation to notify that the image recording is completed. The control unit 40 also eliminates settings related to the print job, the recording target image data, and the like stored in the storage unit 60. Then, the control section 40 ends the image recording control process.
Fig. 6 is a flowchart showing a control procedure of an interrupt process called in the image recording control process.
When the interrupt processing is called, the control unit 40 interrupts the image recording operation of the image recording unit 20, and stores the movement amount of the interrupt position (recording interrupt position xp1) from the recording position x1 measured by the encoder 15 and the interrupt position (content interrupt position) in the image data (recording target data) to be recorded (step S181). The control section 40 stops the conveyance motor 14 to interrupt conveyance (step S182). At this time, the control unit 40 may adjust the position of the portion of the recording medium where the image is recorded in accordance with the operation of the peeling roller 17 while maintaining the suction state of the recording medium to the conveyance belt 12.
The controller 40 refers to the memory unit 60, acquires the rewinding reference amount corresponding to the distance required for the contraction and expansion of the conveyance belt 12 to converge at the time of conveyance resumption, sets the position before the recording position x1 by the rewinding reference amount (upstream side in the conveyance direction) as the conveyance resumption position x4, and calculates the distance between the recording interruption position xp1 and the conveyance resumption position x4 (step S183).
The control unit 40 determines whether or not an image recording operation restart command is acquired (step S184). The image recording operation restart command is acquired in accordance with a predetermined input operation (command operation) performed by the user on the operation display unit 70. If it is determined that the image recording operation restart command has not been acquired (no in step S184), the control unit 40 determines whether or not an image recording operation stop command has been acquired (step S185). The image recording operation stop command is acquired in accordance with a predetermined input operation to the operation display unit 70 by the user, similarly to the image recording restart command. If it is determined that the image recording operation suspension command has not been acquired (no in step S185), the control unit 40 returns the process to step S184. When it is determined that the image recording operation suspension command has been acquired (yes in step S185), the control unit 40 ends the interrupt process and returns the process to the image recording control process.
When it is determined that the image recording operation restart command is acquired (yes in step S184), the control unit 40 operates the conveyance motor 14 to convey the recording medium P in the reverse direction until the recording interruption position xp1 reaches the conveyance restart position x4, that is, until the movement amount measured by the encoder 15 reaches the calculated distance between the recording interruption position xp1 and the conveyance restart position x4 (step S186). At this time, the recording interruption position xp1 may not exactly coincide with the conveyance resumption position x4 as long as it is within the reference distance range dm on the upstream side of the conveyance resumption position x 4. If the two are not matched, the controller 40 extends (adds) the distance d1 beyond the conveyance resumption position x 4. The controller 40 restarts the conveyance motor 14 to restart the movement of the recording medium P in the conveyance direction, and restarts the operation of the medium detector 30 (step S187). The control unit 40 controls the operation of the image recording unit 20 so that the image recording operation is restarted at the timing when the recording interruption position xp1 of the recording medium P reaches (overlaps) the recording position x1, that is, at the timing when the movement amount measured by the encoder 15 becomes the distance d1 (step S188; control step). Then, the control section 40 ends the interrupt processing and returns the processing to the image recording control processing.
As described above, the inkjet recording apparatus 1 of the present embodiment includes: a conveying unit 10 that performs a conveying operation of moving a conveying belt 12 on which a recording medium P is placed in a predetermined conveying direction to convey the recording medium P; an image recording section 20 for performing a recording operation of applying ink to the recording medium being conveyed; and a control unit 40 that starts the recording operation at a timing of conveying by a predetermined distance d1 corresponding to the attenuation of the stretching vibration generated in the conveying belt 12 as a result of the change in acceleration of the conveying belt 12 in the conveying direction at the start of the conveying operation after the conveying operation is started by the conveying unit 10.
In this way, since the expansion and contraction of the transport belt 12 caused by the operational shift between the drive roller 11 and the driven roller 13 at the start of the operation of the transport belt 12 is sufficiently attenuated and then the image recording operation is started, it is possible to suppress the image quality degradation due to the influence of the local positional shift caused by the expansion and contraction and to maintain the quality of the recording operation more stably.
The inkjet recording apparatus 1 further includes a storage unit 60 that stores the predetermined distance d1 as the vibration convergence information 61. Therefore, when the transport operation is started, the image recording operation may be started at the timing when the transport operation is performed at the distance d1 and the distance d1, and therefore the quality of the recording operation can be maintained by easy processing.
The ink jet recording apparatus 1 further includes an encoder 15 for acquiring positional information of the recording medium P being conveyed, the control unit 40 acquires information on a content interruption position of the recording target data related to the recording operation when the recording operation of the image recording unit 20 to the recording medium P and the conveying operation of the conveying unit 10 to the recording medium P are interrupted, acquires information on a recording interruption position xp1 on the recording medium P using the encoder 15, and starts the conveying operation of the recording medium P in the conveying direction so that the recording interruption position xp1 on the recording medium P starts moving from a conveyance start position x4 located upstream of the recording position x1 where the ink is applied to the recording medium P by the image recording unit 20 in the conveying direction by a distance d1 after the recording operation and the conveying operation are interrupted, at the timing when the recording medium P is conveyed by the distance d1, the recording operation onto the recording medium P is started from the content interruption position.
In this way, when the image recording operation is restarted from the same position when the image recording operation is interrupted halfway, the recording interruption position xp1 is moved from the conveyance restart position x4 on the upstream side of the recording position x1 so that the stretching vibration of the conveyor belt 12 is sufficiently attenuated at the timing when the recording interruption position xp1 coincides with the recording position x1, whereby a more stable image without a reduction in image quality can be recorded on the recording medium P before and after the recording interruption position xp 1.
In addition, when the recording operation and the conveying operation are resumed after the interruption of the recording operation and the conveying operation, the control unit 40 starts the conveying operation of conveying the recording medium P in the conveying direction after moving the recording interruption position xp1 to the conveyance resumption position x4 by the conveying unit 10 based on the position information acquired by using the encoder 15, and therefore, it is possible to easily record a stable image on the recording medium P without greatly increasing the user's work.
The conveying unit 10 moves the conveyor belt 12 on which the recording medium P is placed in the direction opposite to the conveying direction, thereby moving the recording interruption position xp1 to the conveyance resumption position x 4. By thus driving the conveyor belt 12 of the conveyor unit 10 in the direction opposite to the normal direction, the conveyor belt can be easily moved to the conveyance resumption position x 4. In particular, since the position of the long continuous paper, fabric, or the like cannot be rotationally moved in the normal moving direction of the conveyor belt 12, the position can be automatically moved in the reverse driving direction without manual operation, and thus the user's work can be reduced.
Further, the conveyance resumption position x4 is determined within the reference distance range set for the recording position x1 based on the attenuation of the stretching vibration in the conveyance direction generated in the conveyance belt 12 accompanying the change in acceleration in the conveyance direction of the conveyance belt 12 at the start of the conveyance operation, and the distance d1 is determined as the distance from the determined conveyance resumption position x4 to the recording position x 1.
In this way, by setting the conveyance resumption position x4 in an appropriate range and determining the resumption timing of the recording operation based on the distance between the conveyance resumption position x4 and the recording position x1 thus set, instead of determining the distance d1, it is not necessary to move the conveyance belt 12 so that the conveyance resumption position x4 and the recording interruption position xp1 are mechanically exactly aligned, and the resumption timing of the recording operation can be controlled based on a signal related to the measurement by the encoder 15 or the like, and the image before interruption and the image after interruption on the recording medium P can be easily and accurately recorded while continuing to each other.
When the recording operation and the conveying operation are to be suspended, the control unit 40 suspends the recording operation and thereafter causes the conveying unit 10 to perform an operation related to suspension of the conveying operation. As described above, the stretching vibration generated in association with the acceleration change at the time of deceleration associated with the stop of the conveying operation is smaller than the stretching vibration generated in association with the acceleration change at the time of acceleration start associated with the start of the conveying operation, and does not significantly affect the quality of the recorded image.
Further, the control unit 40 increases the transport speed of the recording medium P at a constant acceleration when the transport operation is resumed. That is, although the stretching vibration is likely to increase by changing the acceleration stepwise, as compared with the case where the acceleration is continuously changed, in the above embodiment, the image recording operation is not performed during the period in which the stretching vibration is large, and therefore, the conveyance operation can be easily and quickly started by such a change in the acceleration, and the quality of the recorded image can be maintained.
The control unit 40 is provided with an operation receiving unit 72 that receives a command operation for restarting the recording operation and the transport operation, and when the command operation is received after the recording operation and the transport operation are stopped, the control unit restarts the transport operation of the transport unit 10 and the recording operation of the image recording unit 20.
As described above, the image recording operation and the conveying operation are often interrupted due to an abnormal mounting of the recording medium P, and the user usually confirms and copes with the abnormal mounting, and therefore the time required for coping is uncertain. Therefore, by performing a series of operations related to the resumption of the recording operation and the conveying operation by the input operation, it is possible to easily and accurately resume the image recording operation at an appropriate timing and output a recorded image with maintained quality.
The conveying belt 12 is an endless belt member that is stretched between a plurality of rotating members (a driving roller 11 and a driven roller 13), and the conveying unit 10 moves the conveying belt 12 by rotating the driving roller 11, which is one of the plurality of rotating members.
In this way, in the configuration in which the deviation is easily generated between the driving roller 11 that rotates in accordance with the rotation control of the driving roller 11 and the driven roller 13 that rotates by transmitting the rotation through the conveyor belt 12, the stretching vibration of the conveyor belt 12 is easily generated, and the present invention is more effective.
The distance d1 is shorter than the moving distance of the conveyor belt 12 during acceleration at the start of the conveying operation. Therefore, it is not necessary to delay the start of the recording operation until the speed of the conveyor belt 12 becomes constant, and it is not necessary to determine the long distance d 1. Therefore, the possibility of a failure occurring when the conveyor belt 12 is moved in the direction opposite to the conveying direction can be reduced.
The controller 40 adjusts the ejection timing of the ink from the head unit 21 of the image recording unit 20 during the period in which the conveyor belt 12 is accelerated or decelerated, in accordance with the speed of the conveyor belt 12. As a result, the ink can be landed at the correct position on the recording medium P even while the speed of the conveyor belt 12 is changing as described above, and thus the image recording operation can be performed more efficiently.
Further, by performing the recording control of the inkjet recording apparatus 1 by the above-described recording control method, it is possible to suppress image quality degradation due to the influence of local positional deviation caused by the expansion and contraction of the conveying member, and to maintain the quality of the recording operation more stably.
The present invention is not limited to the above embodiment, and various modifications can be made.
For example, in the above-described embodiment, the control in the case where the registration and the maintenance of the image quality are simultaneously realized when the image recording is restarted after the interruption has been described, but in the case where there is a problem already in the recorded image before the interruption, it is not always necessary to record an image next to the recorded image before the interruption, and a new image may be recorded again (without being continued to the previous image) immediately after the interruption (end) position of the previous image, for example. In addition, even when image recording is started by performing registration with respect to a recording medium on which recording has been completed by another image forming apparatus or the like, or a recording medium having an original base pattern, it is possible to control the operation at the start of image recording in the same manner and to achieve both accurate registration and maintenance of image quality. In this case, as long as the recording medium P can be set at the conveyance start position that is a distance d1 before the image recording start position of the recording medium P, the conveyance section 10 does not need to convey the recording medium P in the reverse direction. For example, when the conveyance start position (and the image recording start position) can be specified from a reference position of the recording medium P detectable on the upstream side of the head unit 21 in the conveyance direction, the recording medium P may be conveyed simply from the upstream side and stopped at the conveyance start position, and then conveyance of the recording medium P may be started.
In the above embodiment, the image recording is automatically interrupted based on the detection result of the sensor 31, but the monitoring person may detect an abnormality by visually observing the recording medium and manually interrupt the image recording operation by performing an input operation to the operation receiving unit 72.
In the above-described embodiment, the user has made an input operation of a restart command to the operation reception unit 72 of the operation display unit 70 when restarting after an interruption of image recording, but in a case where the cause of the interruption can be automatically eliminated in the ink jet recording apparatus 1, for example, in a case where the pressing roller 16 for wrinkle elimination can be automatically operated appropriately, image recording may be restarted without making an input operation by the user.
In the above embodiment, the CPU 41 calculates the conveyance resumption position and the conveyance unit 10 conveys the recording medium P in the reverse direction and moves to the conveyance resumption position, but the user may manually rotate the drive roller 11 to convey the recording medium P in the reverse direction by an appropriate distance. In this case, since the user needs to convey the distance necessary for maintaining the image quality in the reverse direction, for example, a mark indicating the range of the reference distance range dm may be provided at a position near or opposite to the conveying belt 12, and the image recording interruption position on the recording medium P may be conveyed in the reverse direction so as to be within the range indicated by the mark. The encoder 15 may measure the reverse conveyance amount by hand, and accurately determine the restart position of the image recording operation based on the measured amount. In this case, the storage unit 60 may not store a numerical value as the distance d1 in advance, but preferably stores the reference distance range dm in advance.
In the case where the recording medium P is not a long fabric or continuous paper but a printing paper (flat paper), the recording medium P can be moved to the conveyance resumption position by moving the recording medium P less than once in the rotational direction of the conveyance belt 12, instead of conveying the recording medium P in the reverse direction.
In the above embodiment, the driving roller 11 and the driven roller 13 rotate the conveyor belt 12, but the number of rollers is not limited to two. Further, the conveyance path of the recording medium P may be bent halfway by three or more rollers.
In addition, the details of the structure, arrangement, control contents, process, and the like shown in the above embodiments can be appropriately changed without departing from the spirit of the present invention.
Industrial applicability
The present invention is applicable to an inkjet recording apparatus and a recording control method for an inkjet recording apparatus.
Claims (13)
1. An inkjet recording apparatus, comprising:
a conveyance unit that performs a conveyance operation of moving a conveyance member on which a recording medium is placed in a predetermined conveyance direction to convey the recording medium;
a recording unit that performs a recording operation of applying ink to the transported recording medium; and
and a control unit that starts the recording operation at a timing of conveying the conveying member by a predetermined distance corresponding to attenuation of stretching vibration generated in the conveying member in accordance with a change in acceleration of the conveying member in the conveying direction at the start of the conveying operation after the conveying operation is started by the conveying unit.
2. The inkjet recording apparatus according to claim 1,
the inkjet recording apparatus includes a storage unit that stores the predetermined distance.
3. The inkjet recording apparatus according to claim 1,
the inkjet recording apparatus includes a position acquisition unit that acquires position information of a recording medium being conveyed,
in the control unit, the control unit is provided with a control unit,
acquiring information on a content interruption position of the recording target data related to the recording operation and acquiring information on a recording interruption position on the recording medium by the position acquisition unit when the recording operation of the recording unit to the recording medium and the conveyance operation of the recording medium by the conveyance unit are interrupted,
when the recording operation and the conveying operation are restarted after the interruption, the conveying operation for conveying the recording medium in the conveying direction is started such that the recording interruption position starts moving from a conveyance restart position located upstream of a recording position where ink is applied to the recording medium by the recording unit by the predetermined distance in the conveying direction, and the recording operation for the recording medium is started from the content interruption position at a timing when the recording medium is conveyed by the predetermined distance.
4. The inkjet recording apparatus according to claim 3,
the control unit starts a transport operation of transporting the recording medium in the transport direction after the recording interruption position is moved to the transport resumption position by the transport unit based on the acquired position information when the recording operation and the transport operation are resumed after the interruption.
5. The inkjet recording apparatus according to claim 4,
the conveyance unit moves the recording interruption position to the conveyance resumption position by moving the conveyance member on which the recording medium is placed in a direction opposite to the conveyance direction.
6. The inkjet recording apparatus according to claim 3,
the transport resumption position is determined within a reference distance range set for the recording position based on attenuation of stretching vibration in the transport direction generated in the transport member in accordance with a change in acceleration in the transport direction of the transport member at the start of the transport operation, and the predetermined distance is determined as a distance from the determined transport resumption position to the recording position.
7. The inkjet recording apparatus according to any one of claims 3 to 6,
the control means causes the transport means to perform an operation related to suspension of the transport operation after suspending the recording operation when the recording operation and the transport operation are suspended.
8. The inkjet recording apparatus according to any one of claims 3 to 6,
the control unit increases the transport speed of the recording medium at a constant acceleration when the transport operation is resumed.
9. The inkjet recording apparatus according to any one of claims 3 to 6,
the inkjet recording apparatus includes an operation receiving unit that receives a command operation related to resumption of the recording operation and the conveying operation,
the control unit restarts the transport operation of the transport unit and the recording operation of the recording unit when the command operation is received after the recording operation and the transport operation are terminated.
10. The inkjet recording apparatus according to any one of claims 1 to 6,
the conveying member is an annular belt member arranged between a plurality of rotating members,
the conveying unit moves the conveying member by rotating one of the plurality of rotating members.
11. The inkjet recording apparatus according to any one of claims 1 to 6,
the predetermined distance is shorter than a moving distance during a period in which the conveying member is accelerated at the start of the conveying operation.
12. The inkjet recording apparatus according to any one of claims 1 to 6,
the control unit adjusts the ejection timing of the ink ejected from the recording unit during acceleration and deceleration of the conveyance member according to the speed of the conveyance member.
13. A recording control method of an ink jet recording apparatus, the ink jet recording apparatus comprising: a conveyance unit that performs a conveyance operation of moving a conveyance member on which a recording medium is placed in a predetermined conveyance direction to convey the recording medium; and a recording unit that performs a recording operation of applying ink to the recording medium that is conveyed, the recording control method of the inkjet recording apparatus including:
and a control step of starting the recording operation at a timing of conveying the transport member by a predetermined distance corresponding to attenuation of stretching vibration generated in the transport member in accordance with a change in acceleration of the transport member in the transport direction at the start of the transport operation after the transport operation is started by the transport unit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-064241 | 2016-03-28 | ||
| JP2016064241 | 2016-03-28 | ||
| PCT/JP2017/008672 WO2017169527A1 (en) | 2016-03-28 | 2017-03-06 | Inkjet recording device and recording control method for inkjet recording device |
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| Publication Number | Publication Date |
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| CN108883633A CN108883633A (en) | 2018-11-23 |
| CN108883633B true CN108883633B (en) | 2020-04-10 |
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| CN201780019811.8A Active CN108883633B (en) | 2016-03-28 | 2017-03-06 | Ink jet recording apparatus and recording control method for ink jet recording apparatus |
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| JP (1) | JP6753463B2 (en) |
| CN (1) | CN108883633B (en) |
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| JP7413705B2 (en) | 2019-10-08 | 2024-01-16 | セイコーエプソン株式会社 | Printing device, printing device control method, and control program |
| JP2022148951A (en) | 2021-03-24 | 2022-10-06 | 株式会社Ｓｃｒｅｅｎホールディングス | Printer and printing system |
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| JPWO2017169527A1 (en) | 2019-02-07 |
| WO2017169527A1 (en) | 2017-10-05 |
| CN108883633A (en) | 2018-11-23 |
| JP6753463B2 (en) | 2020-09-09 |
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