JP2021183540A - Recording device and control method - Google Patents

Abstract

To provide a recording device that executes control according to a cause of skewing.SOLUTION: There is provided a recording device, including: accommodating means for accommodating a sheet; feeding means for feeding the sheet accommodated in the accommodating means onto a transport path; transport means for transporting the sheet fed on the transport path by the feeding means to recording means in a transport direction; first detecting means for detecting a spacing between regulatory members that regulate both ends of the sheet; second detecting means located downstream of the first detecting means in the transport direction on the transport path and upstream of the recording means, and detecting a width of the sheet on the transport path; and control means for controlling transportation of the sheet based on a detection result by the first detecting means and a detection result by the second detecting means.SELECTED DRAWING: Figure 5

Description

The present invention relates to a recording device and a control method for recording on a recording medium.

Patent Document 1 describes that a printer including a skew sensor and a table sensor for detecting whether or not the inserted printing paper is skewed detects the width of the paper. In Patent Document 1, first, a process of removing the skew of the paper is performed using a skew sensor and a table sensor, and then the width of the paper is detected by reading the paper width sensor within the range where the paper is detected by the skew sensor. It is stated that it will be done.

Patent No. 4398977

In Patent Document 1, by setting the lead range of the paper width sensor to the range where the paper is detected by the skew sensor, it is possible to read only the range close to the original position of the paper. Further, in Patent Document 1, when skew occurs in the paper, the skew itself can be detected.

However, in Patent Document 1, the cause of the skew cannot be specified, and the control according to the cause of the skew cannot be executed.

It is an object of the present invention to provide a recording device and a control method for performing control according to the cause of skewing.

In order to solve the above problems, the recording device according to the present invention includes a storage means for accommodating a sheet, a feeding means for feeding the sheet accommodated in the accommodating means on a transport path, and the transporting means by the feeding means. A recording device including a transporting means for transporting a sheet fed on the road to a recording means in a transporting direction, a first detecting means for detecting an interval between regulatory members that regulate both ends of the sheet, and the transport road. A second detection means that is located downstream of the first detection means and upstream of the recording means in the transport direction and detects the width of the sheet on the transport path, and detection results by the first detection means. It is characterized by including a control means for controlling the transfer of the sheet based on the detection result by the second detection means.

According to the present invention, control according to the cause of skewing can be executed.

It is an external perspective view which shows the schematic structure of the inkjet recording apparatus which is a typical example of this invention. It is a perspective view which shows the schematic structure of a recording head. It is a block diagram which shows the control composition of the recording apparatus shown in FIG. It is the outline of the side cross section of the recording apparatus shown in FIG. 1, and is the figure which shows typically the transport composition of the roll paper. It is a figure for demonstrating the mechanism for detecting the width of a roll paper. It is a flowchart which shows the process of a transfer control. It is a flowchart which shows the process of a transfer control.

[First Embodiment]
Hereinafter, preferred embodiments of the present invention will be described in more detail and in detail with reference to the accompanying drawings. The following embodiments do not limit the invention according to the claims. Although a plurality of features are described in the embodiment, not all of the plurality of features are essential for the invention, and the plurality of features may be arbitrarily combined. Further, in the attached drawings, the same or similar configurations are given the same reference numbers, and duplicate explanations are omitted.

In this specification, "record" (sometimes referred to as "print") is not limited to the case of forming significant information such as characters and figures, and may be significant or unintentional. It also refers to the case where an image, pattern, pattern, etc. is widely formed on a recording medium or the medium is processed, regardless of whether or not it is manifested so that it can be visually perceived by humans. ..

The "recording medium" is not limited to paper (printing paper) used in general recording equipment, but can widely accept ink such as cloth, plastic film, metal plate, glass, ceramics, wood, and leather. It shall also represent something.

Furthermore, "ink" (sometimes referred to as "liquid") should be broadly construed as in the definition of "print" above. Therefore, by being applied onto the recording medium, it is used for forming images, patterns, patterns, etc., processing the recording medium, or processing ink (for example, coagulation or insolubilization of the colorant in the ink applied to the recording medium). It shall represent a liquid that can be used.

Further, the term "nozzle" is used as a general term for the ejection port, the liquid passage communicating with the ejection port, and the element for generating energy used for ink ejection, unless otherwise specified.

The recording head substrate (head substrate) used below does not indicate a mere substrate made of a silicon semiconductor, but indicates a configuration in which each element, wiring, or the like is provided.

Further, the term “on the substrate” means not only the top of the element substrate but also the surface of the element substrate and the inside side of the element substrate in the vicinity of the surface. Further, the term "built-in" as used in the present invention does not mean that each element of a separate body is simply arranged as a separate body on the surface of a substrate, but the manufacturing of a semiconductor circuit for each element. It indicates that it is integrally formed and manufactured on an element plate by a process or the like.

<Outline of recording device (Fig. 1)>
FIG. 1 is an overview perspective view of an inkjet recording device (hereinafter referred to as a recording device) which is a typical embodiment of the present invention.

As shown in FIG. 1, the recording device 1 is provided with an operation panel 100 for making various settings related to printing and displaying the state of the device. Further, the recording device 1 is supported by a stand 101, and the recording unit thereof is usually covered by a cover 16 that can be opened and closed. Further, the recording device 1 has an ink tank cover 2 that is operated when the ink tank is replaced. As will be described later, the recording device 1 is provided with a full-line recording head (hereinafter referred to as a recording head) having a recording width corresponding to the width direction of the recording medium and ejecting ink droplets onto the recording medium to record an image. ing.

The recording head is composed of four color recording heads having the same configuration, black (K), cyan (C), magenta (M), and yellow (Y). Therefore, four ink tanks containing black, cyan, magenta, and yellow inks are housed in the lower portion of the ink tank cover 2. These ink tanks can be replaced independently of each other.

The recording device 1 is loaded with a recording medium such as a roll-shaped sheet having a width of 10 inches to 40 inches corresponding to the recording width of the recording head, and the recording medium is conveyed to the recording area by the recording head. Can be recorded.

As shown in FIG. 1, a recording medium such as a roll-shaped continuous sheet can be stored in two stages (upper roll paper mounting portion 4a, lower roll paper mounting portion 4b), and any of the mounted roll paper mounting portions 4b. Recording is also possible on roll-shaped sheets. Note that FIG. 1 shows how the roll paper R is attached to the lower roll paper attachment portion 4b.

Next, the structure of the recording head will be described in more detail.

<Description of Recording Head Configuration (Fig. 2)>
FIG. 2 is a perspective view showing a schematic configuration of the recording head 3. The recording head 3 is a line-type recording head in which 15 element substrates 10 capable of ejecting four colors of ink of C / M / Y / K are arranged in a straight line (arranged in-line). In addition to this configuration, four recording heads 3 ejecting one color of ink are arranged in the transport direction of the recording medium to provide four colors of C / M / Y / K. It may be configured to eject ink.

As shown in FIG. 2, the recording head 3 includes each element substrate 10, a signal input terminal 91 electrically connected via a flexible wiring board 40 and an electrical wiring board 90, and a power supply terminal 92. The signal input terminal 91 and the power supply terminal 92 are electrically connected to the control unit of the recording device 1, and supply the discharge drive signal and the power required for discharge to the element substrate 10, respectively. By consolidating the wiring by the electric circuit in the electric wiring board 90, the number of the signal output terminals 91 and the power supply terminals 92 can be reduced as compared with the number of the element boards 10. As a result, the number of electrical connections that need to be removed when the recording head 3 is attached to the recording device 1 or when the recording head is replaced can be reduced.

An electric heat conversion element (heater) (not shown) is formed on the element substrate 10 corresponding to each ejection port. The electric heat conversion element is energized and heated to foam ink, and the foaming energy is used to foam the ink. Discharge from the discharge port.

<Explanation of control configuration (Fig. 3)>
FIG. 3 is a block diagram showing a configuration of a control circuit of the recording device 1.

As shown in FIG. 3, the recording device 1 is mainly composed of a print engine unit 417 that controls the recording unit, a scanner engine unit 411 that controls the scanner unit, and a controller unit 410 that controls the entire recording device 1. ing. The print controller 419 having a built-in MPU or non-volatile memory (EEPROM or the like) controls various mechanisms of the print engine unit 417 according to the instruction of the main controller 401 of the controller unit 410. Various mechanisms of the scanner engine unit 411 are controlled by the main controller 401 of the controller unit 410.

The details of the control configuration will be described below.

In the controller unit 410, the main controller 401 configured by the CPU controls the entire recording device 1 while using the RAM 406 as a working area according to the programs and various parameters stored in the ROM 407. For example, when a print job is input from the host device 400 via the host I / F 402 or the wireless I / F 403, the image processing unit 408 performs predetermined image processing on the received image data according to the instruction of the main controller 401. Apply. Then, the main controller 401 transmits the image data subjected to the image processing to the print engine unit 417 via the print engine I / F405.

The recording device 1 may acquire image data from the host device 400 via wireless communication or wired communication, or may acquire image data from an external storage device (USB memory or the like) connected to the recording device 1. Is also good. The communication method used for wireless communication and wired communication is not limited. For example, Wi-Fi (Wireless Fidelity) (registered trademark) and Bluetooth (registered trademark) can be applied as a communication method used for wireless communication. Further, as a communication method used for wired communication, USB (Universal Serial Bus) or the like can be applied. Further, for example, when a read command is input from the host device 400, the main controller 401 transmits this command to the scanner engine unit 411 via the scanner engine I / F409.

The operation panel 404 is a unit for the user to input / output to / from the recording device 1. The user can instruct operations such as copying and scanning via the operation panel 404, set a recording mode, and recognize information on the recording device 1. The operation panel 404 corresponds to the operation panel 100 of FIG. In the present embodiment, the print controller 419 requests the main controller 401 to display the user interface screen on the operation panel 404 according to the state of the print engine unit 417. Then, the main controller 401 displays the user interface screen on the operation panel 404 in response to the request.

In the print engine unit 417, the print controller 419 configured by the CPU controls various mechanisms of the print engine unit 417 with the RAM 421 as a work area according to the program and various parameters stored in the ROM 420.

When various commands and image data are received via the controller I / F418, the print controller 419 temporarily stores them in the RAM 421. The print controller 419 causes the image processing controller 422 to convert the saved image data into the recording data so that the print controller 419 can be used for the recording operation of the recording head 3. When the recorded data is generated, the print controller 419 causes the recording head 3 to execute a recording operation based on the recorded data via the head I / F 427. At this time, the print controller 419 drives the transfer roller 28 via the transfer control unit 426 to transfer the recording medium. According to the instruction of the print controller 419, the recording operation by the recording head 3 is executed in conjunction with the conveying operation of the recording medium, and the recording process is performed.

The head carriage control unit 425 changes the direction and position of the recording head 3 according to an operating state such as a maintenance state or a recording state of the recording device 1. The ink supply control unit 424 controls the liquid supply unit so that the pressure of the ink supplied to the recording head 3 falls within an appropriate range. The maintenance control unit 423 controls the operation of the cap unit and the wiping unit in the maintenance unit (not shown) when performing the maintenance operation on the recording head 3.

The main controller 401 controls the hardware resources of the scanner controller 415 while using the RAM 406 as a work area according to the programs and various parameters stored in the ROM 407. As a result, various mechanisms included in the scanner engine unit 411 are controlled. For example, the main controller 401 controls the hardware resources of the scanner controller 415 via the controller I / F 414, and the document loaded on the ADF (not shown) by the user is conveyed via the transfer control unit 413, and the sensor 416. Read by. Then, the scanner controller 415 stores the read image data in the RAM 412.

By converting the image data acquired as described above into recording data, the print controller 419 can cause the recording head 3 to execute a recording operation based on the image data read by the scanner controller 415.

<Explanation of the transport configuration of roll paper (Fig. 4)>
FIG. 4 is a side sectional view of the recording device 1 shown in FIG. 1, and schematically shows a transport configuration of roll paper. FIG. 4 shows a state in which the roll paper R1 is loaded in the roll paper mounting portion 4a and the roll paper R2 is loaded in the roll paper mounting portion 4b. In FIG. 4, when the user loads the roll paper R1 in the portion of the broken line in the roll paper mounting portion 4a, the roll paper R1 rotates and moves and is fixed and mounted on the shaft in the recording device. Similarly, when the user loads the roll paper R2 in the portion of the broken line in the roll paper mounting portion 4b, the roll paper R2 rotates and moves and is fixed and mounted on the shaft in the recording device.

For example, when an image is recorded on the roll paper R1, when a feed motor (not shown) mounted on the rotating shaft of the roll paper mounting portion 4a is driven, the tip of the roll paper R1 is sent out to the feed path and the tip thereof. Is detected by the paper feed sensor 21, and is niped by the feed roller pair 23. Then, the tip of the roll paper R1 is conveyed on the transport path by the rotation of the feed roller pair 23, the tip of the roll paper R1 is cut by the cutter 25, and the shape is trimmed.

In this embodiment, in FIG. 4, the route of the feed roller pair 24 to the cutter 26 to the feed roller pair 23 to the cutter 25 to the transport roller 28 to the LF roller 29 is referred to as a transport path. Further, the route from the roll paper R1 to the feed roller pair 23 and the route from the roll paper R2 to the feed roller pair 24 are referred to as a feed path.

Similarly, when recording an image on the roll paper R2, when a feed motor (not shown) mounted on the rotating shaft of the roll paper mounting portion 4b is driven, the tip of the roll paper R2 is sent out to the feed path. When the tip thereof is detected by the paper feed sensor 22, it is niped by the feed roller pair 24. Then, the tip of the roll paper R2 is conveyed on the transport path by the rotation of the feed roller pair 24, the tip of the roll paper R2 is cut by the cutter 26, and the shape is trimmed.

The roll paper whose tip is trimmed by any of the cutters 25 and 26 is further sent out in the direction of the arrow, and when the tip is detected by the tip detection sensor 27, the transport roller 28 is driven to start rotation. Then, the roll paper whose tip is nipped by the transfer roller 28 is further conveyed and reaches the LF roller 29. When the tip of the roll paper is nipped into the LF roller 29, the roll paper is conveyed by the LF roller 29 and the transfer roller 28, and the roll paper is conveyed on the transfer belt 41. A fixed guide 30 is provided in the vicinity of the tip detection sensor 27 to support smooth transfer of the roll paper.

At this time, if the rotation speed (V0) of the LF roller 29 and the rotation speed (V) of the transport roller 28 are slightly different from each other and controlled so that V is slightly larger than V0, a broken line is shown on the roll paper in FIG. The loop 31 is formed as shown. With the formation of the loop 31, one end is fixed, and the flapper 32, which is rotatable around the fixed portion as a rotation axis, is configured so as not to interfere with the formation of the roll paper loop. ..

In such a state, the roll paper is further conveyed and reaches the recording position between the lower part of the recording head 3 and the platen 40.

As shown in FIG. 4, the platen 40 is provided at the lower part of the transport belt 41 for transporting the roll paper between the upstream side and the downstream side of the recording head 3 with respect to the transport direction of the roll paper, and the platen 40 is provided. It is connected to the suction fan 43 via the duct 42. With such a configuration, the suction fan 43 is operated to suck the air inside the duct 42 to generate a negative pressure, so that the roll paper is brought into close contact with the transport belt 41 through the holes provided in the platen 40, and the roll paper is brought into close contact with the transport belt 41. Is prevented from floating during transportation.

Further, regarding the transport direction of the roll paper, a recovery unit 51 is provided on the upstream side of the recording head 3, and a cap 52 and a drying unit 53 are provided on the downstream side thereof. As shown in FIG. 4, the recovery unit 51 is movable in the transport direction of the roll paper, and the cap 52 is configured to be rotatable around the rotation shaft 52a. Further, the recording head 3 has a recording width corresponding to the width of the roll paper which is a recording medium as described above, and is fixed during recording, but is fixed in the vertical direction as shown by an arrow in FIG. 4 except for the recording operation. It is configured to be movable to.

With such a configuration, for example, when recovering the ejection state of the recording head 3, the recording head 3 moves to an upper standby position, and the recovery unit 51 is moved to the space created thereby. After that, the recovery unit 51 performs a recovery operation by wiping the ink ejection surface of the recording head 3, sucking the ejection port, pre-discharging the recording head 3, and the like. Since these operations are well-known techniques, their description will be omitted.

On the other hand, when neither the recording operation nor the recovery operation is performed, the recording head 3 is moved to the upper standby position in order to prevent the ink ejection surface of the recording head 3 from drying, and the cap 52 is rotated in the space created by the moving position. After that, the recording head 3 is moved downward and the recording head 3 is capped by the cap 52.

Further, the drying unit 53 is operated to heat the surface of the roll paper, and the roll paper for which recording has been completed is dried by ink ejection by the recording head 3. As a result, after recording, the wet roll paper is further transported, and the inside of the apparatus (particularly, the transport path of the roll paper) is prevented from being contaminated with ink. Further, a fan 54 and a duct 55 are provided on the upper part of the recording head 3, and by operating the fan 54, external air is blown out through the duct 55 in the direction of the arrow, and the air rolls the paper after recording. Promotes drying.

By the way, the recording length (L) in the transport direction of the roll paper is determined by either the user instruction from the operation panel 100 or the instruction from the host device 400. Then, when it is confirmed that the roll paper whose tip is trimmed by any of the cutters 25 and 26 is conveyed by the recording length (L) from the tip, the trailing end is transferred by any of the cutters 25 and 26. It will be cut.

The recording head 3 records, and the roll paper whose rear end is cut (hereinafter referred to as cut paper) is discharged to the back basket 60 or the front stacker 61. The selection of the paper ejection location is made by either a user instruction from the operation panel 100 or an instruction from the host device 400.

When the cut paper is discharged to the back basket 60, the flapper 62 rotates to form a transport path in the direction of the back basket 60. As a result, the cut paper is conveyed by the rotation of the conveyor belt 41 and falls into the back basket 60 as shown by the broken line in FIG. The output signal from the paper sensor 63 is used to detect the front end, pass through, and the rear end of the cut paper.

On the other hand, when the cut paper is discharged to the front stacker 61, the flapper 62 rotates and is located at the position indicated by the broken line to form a transport path in the direction of the front stacker 61. As a result, the cut paper is conveyed by the rotation of the transport belt 41, reaches the paper ejection roller pair 64, further reaches the paper ejection roller pair 65, and is finally ejected to the front stacker 61. Paper sensors 66 and 67 and a paper ejection sensor 68 are provided on the transport path to the front stacker 61 to detect the ejection status of the cut paper. Further, a rear end pressing lever 69 is provided between the paper ejection roller pair 65 and the paper ejection sensor 68 to prevent the rear end of the cut paper from bouncing and support smooth ejection of the cut paper. ..

The scanner engine unit 411 reads the image by the user inserting the image document in the direction of the arrow of the solid line. However, since the configuration of the scanner engine 411 uses the conventional configuration, the description thereof is omitted here.

Next, the details of the roll paper transport control executed in the recording apparatus having the above configuration will be described.

In the present embodiment, there are two types of mechanisms for detecting the width of the roll paper, the width of the roll paper is detected by these mechanisms before recording by the recording head 3, and the roll paper is detected based on each detection result. Control the transport of.

5 (a) and 5 (b) are diagrams for explaining a mechanism for detecting the width of the roll paper. FIG. 5A is a view of the configuration of the recording device 1 of FIG. 4 from right to left. In FIG. 5A, the roll paper R1 is not shown for the sake of simplification. Further, FIG. 5B is a diagram showing a state in which the roll paper R1 is attached to the spool member. The spool member includes a spool shaft 510 and spool flanges corresponding to regulatory members 502 and 503. One of the regulating members 502 and 503 is integrated with the spool shaft 510 as a reference spool flange, and the other is removable from the spool shaft 510 as a non-reference spool flange. The user attaches the roll paper R1 to the spool shaft 510 by removing the restricting member corresponding to the non-standard spool flange from the spool shaft 510 and passing the spool shaft 510 through the hollow portion of the roll paper R1. Then, the user fits the regulating member corresponding to the non-standard spool flange into the spool shaft 510 passed through the hollow portion of the roll paper R1, and the friction member provided on the regulating members 502 and 503 causes the roll paper R1 to be formed. And the regulating members 502 and 503 are fixed. A gear 511 for rotating the spool shaft 510 is provided at one end of the spool shaft 510, and when the driving force from the feed motor described above is transmitted to the gear 511, the spool shaft 510 rotates. ..

Both ends of the roll paper R1 fixed to the spool shaft 510 are regulated by the regulating members 502 and 503. The roll paper R1 is conveyed on the transport path toward the recording position of the recording head 3 via the feed path 504 in the roll paper mounting portion 4a. In the present embodiment, the positions of the regulating members 502 and 503 are detected by the position detection sensor 505 installed in the vicinity. The position detection sensor 505 is configured as an optical sensor including, for example, a light emitting unit and a light receiving unit, and the detection signal thereof is transmitted to the print controller 419. The print controller 419 can acquire the width (distance between the two regulating members) between the regulating member 502 and the regulating member 503 based on the detection signal. That is, in the present embodiment, the regulating members 502 and 503 and the position detection sensor 505 operate as a detection mechanism for detecting the width between the two regulating members.

Further, in the present embodiment, the regulating members 502 and 503 are described as spool flanges, but they may be members for other purposes as long as they are members for regulating both ends of the roll paper R1. For example, the guide member may be provided so as to be slidable in the width direction of the roll paper R1 along the groove provided on the feed path 504. Even in that case, similarly to the above, the positions of the regulating members 502 and 503, which are the guide members, are detected by the position detection sensor 505 installed in the vicinity thereof.

The recovery unit 51 is provided with a sensor carriage 501, and the sensor carriage 501 is configured to be able to reciprocate on the surface of the recovery unit 51 in the width direction of the roll paper. The sensor carriage 501 includes a paper width detection sensor 500 configured as, for example, an optical sensor, and the detection signal is transmitted to the print controller 419 by scanning the roll paper in the width direction. The print controller 419 can acquire the width of the roll paper based on the detection signal. That is, in the present embodiment, the sensor carriage 501 and the paper width detection sensor 500 operate as a detection mechanism for detecting the width of the roll paper. Further, when scanning is performed by the sensor carriage 501, the recording head 3 moves to the upper standby position, and the recovery unit 51 is moved to the space created by this. The sensor carriage 501 then scans the roll paper in the width direction. When recording is performed by the recording head 3 after the scanning by the sensor carriage 501 is completed, the recovery unit 51 is moved to the original position, and the recording head 3 in the standby position is moved to the recording position.

As described above, in the present embodiment, the width between the two regulating members is detected by the position detection sensor 505, and the width of the roll paper is detected by the paper width detection sensor 500 before recording by the recording head 3. If the width between the two regulating members and the width of the roll paper are different, it is determined that there is an improper mounting of the roll paper R1 in the roll paper mounting portion 4a or a defect in the shape of the roll paper. Recording by the recording head 3 is stopped, and the user is notified. Here, the improper mounting of the roll paper R1 in the roll paper mounting portion 4a is, for example, a state in which the restricting members 502 and 503 do not match the width of the roll paper. Further, the defect in the shape of the roll paper is, for example, tearing or breaking of the roll paper. According to the present embodiment, such a configuration can prevent recording from being performed while the roll paper R1 is improperly mounted in the roll paper mounting portion 4a or the shape of the roll paper is defective. can.

Although the roll paper R1 and the roll paper mounting portion 4a are shown in FIG. 5A, the roll paper R2 and the roll paper mounting portion 4b also have the same configuration, and hereinafter, the roll paper R1 and the roll paper have the same configuration. The mounting portion 4a will be described as a representative example thereof.

FIG. 6 is a flowchart showing a process of controlling the transport of the roll paper. The process of FIG. 6 is realized, for example, by the print controller 419 loading the program stored in the ROM 420 into the RAM 421 and executing the program. Further, the process of FIG. 6 is started when, for example, the user receives an instruction to start recording on the roll paper R1 on the operation panel 404.

In S101, the print controller 419 sets the sensor carriage 501. For example, the print controller 419 sets the sensor carriage 501 by moving the recording head 3 to a retracted position and moving the recovery unit 51 to a predetermined position after the recording head 3 has moved.

In S102, the print controller 419 starts feeding the roll paper R1 to the transport path. For example, the print controller 419 controls the rotation of the feed roller pair 23 so that the tip of the roll paper R1 is conveyed to the transport path via the feed path 504. Then, in S103, the print controller 419 acquires the detection signal of the position detection sensor 505, and in S104, acquires the width between the regulation member 502 and the regulation member 503. The acquisition result is held in a storage area such as RAM 421. In the present embodiment, the width between the regulating member 502 and the regulating member 503 is acquired after the feeding is started in S102, but it may be acquired before the feeding is started. .. In that case, the process proceeds from S102 to S105.

In S105, the print controller 419 determines whether or not to perform paper width detection by the paper width detection sensor 500. For example, the print controller 419 may determine whether or not to perform paper width detection based on whether or not the tip detection sensor 27 has detected the tip of the roll paper R1. If it is determined that the paper width detection is not performed, the process of S105 is repeated, and if it is determined that the paper width detection is performed, the process proceeds to S106.

In S106, the print controller 419 stops the transfer of the roll paper R1 when the tip of the roll paper R1 reaches the lower part of the paper width detection sensor 500. For example, the print controller 419 may control the tip detection sensor 27 to stop the transport of the roll paper R1 after a predetermined time has elapsed after detecting the tip of the roll paper R1. Here, the predetermined time is, for example, a time calculated from the distance from the tip detection sensor 27 to the detection position of the paper width detection sensor 500 and the transport speed of the roll paper R1.

In S107, the print controller 419 drives the paper width detection sensor 500 of the sensor carriage 501 and controls to scan the roll paper in the width direction. In S108, the print controller 419 acquires the detection signal of the paper width detection sensor 500, and in S109, acquires the paper width (let's assume that the paper width is 1) of the roll paper. In S107 and S108, the paper width detection sensor 500 targets the width near the tip of the roll paper R1 as a detection target. The acquisition result in S109 is held in a storage area such as RAM 421.

In S110, the print controller 419 compares the width between the two regulatory members acquired in S104 with the paper width 1 acquired in S109, and whether or not the difference is equal to or less than a predetermined threshold value. Is determined. Here, when it is determined that the value is equal to or less than the threshold value, in S111, the print controller 419 determines the paper width 1 acquired in S109 as the paper width of the roll paper R1. The determined paper width is used, for example, in the subsequent recording process by the recording head 3. Further, the print controller 419 moves the recovery unit 51 as necessary, and moves the recording head 3 in the retracted position to the recording position. Then, in S112, the print controller 419 controls to convey the roll paper R1 to the recording position of the recording head 3. After that, the process of FIG. 6 is completed, and the recording process on the roll paper R1 is performed. On the other hand, if it is determined in S110 that the threshold value is not equal to or less than the threshold value, the process proceeds to S201 in FIG.

In S201 of FIG. 7, the print controller 419 controls to convey the roll paper R1 to the recording position side of the recording head 3 by a predetermined distance. Here, the predetermined distance is a distance for the paper width detection sensor 500 to detect a portion different from S107 and S108. Then, in S202, the print controller 419 drives the paper width detection sensor 500 of the sensor carriage 501 and controls the movement of the roll paper in the width direction. Then, the print controller 419 acquires the detection signal of the paper width detection sensor 500, and acquires the paper width (referred to as the paper width 2) of the roll paper in S203. In S202 and S203, the paper width detection sensor 500 targets the vicinity of the tip of the roll paper R1 at a predetermined distance. The acquisition result in S203 is held in a storage area such as RAM 421.

In S204, the print controller 419 compares the paper width 1 acquired in S109 with the paper width 2 acquired in S203, and determines whether or not the difference is equal to or less than a predetermined threshold value. Here, when it is determined that the value is equal to or less than the threshold value, in S205, the print controller 419 determines the paper width acquired in S109 or S203 as the paper width of the roll paper R1. The determined paper width is used, for example, in the subsequent recording process by the recording head 3.

In S206, the print controller 419 controls to stop the transfer of the roll paper R1 to the recording position of the recording head 3. In the case where the processing proceeds from S204 to S205, for example, although there is no shape defect such as tearing or bending in the state of the roll paper R1, the paper width of the roll paper R1 is between the regulating member 502 and the regulating member 503. The above open cases correspond. If there is a gap between the regulating members 502 and 503 and the roll paper R1, the deviation of the transport path accumulates with the transport during recording, and there is a possibility that jam or the like will eventually occur. .. Therefore, in the present embodiment, since the difference between the paper width 1 and the paper width 2 is equal to or less than the threshold value in S204, it is determined that there is no problem in the state of the roll paper R1, but the width between the two regulating members in S110. If it is determined that the difference between the paper width 1 and the paper width 1 is not equal to or less than the threshold value, the recording operation of the roll paper R1 is stopped. As a result, it is possible to prevent the occurrence of jam or the like during recording.

In S207, the print controller 419 requests the main controller 401 to notify the user that the recording operation is stopped on the operation panel 404. On the operation panel 404, for example, a message screen such as "Stop the recording operation. Check the status of the regulating member of the roll paper." Is displayed. After that, the process of FIG. 7 is terminated.

In S207, for example, the following processing may be performed according to the user setting. For example, if the width between the two restricting members is larger than the paper width 1 from the comparison result in S110, the print controller 419 says, "Check the condition of the restricting member of the roll paper. Set the restricting member. You may control to display a message screen such as "Please press the resume button after re-doing" on the operation panel 404. At that time, a "restart" button for resuming the transfer of the roll paper R1 to the recording position of the recording head 3 is displayed on the screen. That is, when the width between the two regulating members is larger than the paper width, the subsequent recording operation can be performed by adjusting the regulating members 502 and 503 to the paper width. Therefore, by displaying the above screen, the recording process can be performed immediately after the guide width is adjusted by the user. At that time, the print controller 419 moves the recovery unit 51 to the recording position, and then performs the recording process.

Further, on the above screen, the "Resume" button and the "End" button for ending the transfer of the roll paper R1 to the recording position of the recording head 3 may be displayed. In that case, when the "finish" button is pressed, the print controller 419 may be controlled so that the roll paper R1 can be removed. For example, the print controller 419 may be controlled to wind up the roll paper R1 on the transport path by reversing each roller, or may be controlled to cut the roll paper R1 by the cutter 25.

On the other hand, the case where it is determined in S204 that it is not equal to or less than the threshold value corresponds to, for example, the case where the roll paper R1 is broken or torn. In such a case, the paper width 1 acquired in S109 and the paper width 2 acquired in S203 may be significantly different. In that case, in the present embodiment, the recording operation of the roll paper R1 is stopped. If it is determined in S204 that the value is not equal to or less than the threshold value, in S208, the print controller 419 controls to stop the transfer of the roll paper R1 to the recording position of the recording head 3. At that time, the print controller 419 may be controlled so that the roll paper R1 can be removed. For example, the print controller 419 may be controlled to wind up the roll paper R1 on the transport path by reversing each roller, or may be controlled to cut the roll paper R1 by the cutter 25.

Then, in S209, the print controller 419 requests the main controller 401 to notify the user that the recording operation is stopped on the operation panel 404. On the operation panel 404, for example, a message screen such as "Stop the recording operation. Check if the roll paper is torn or broken." Is displayed. After that, the process of FIG. 7 is terminated.

Further, in S208, the following processing may be performed, for example, according to the user setting. For example, the print controller 419 may control the rotation of each roller so that the vicinity of the tip of the roll paper R1 returns to the vicinity of the downstream side of the cutter 25, and the cutter 25 may cut the vicinity of the tip of the roll paper R1. That is, in the case of a fold near the tip, the subsequent recording operation can be performed by cutting the vicinity of the tip. In that case, in S209, the roll paper R1 to the recording position of the recording head 3 is accompanied by the message "The recording operation was stopped and the tip of the roll paper was cut. It is possible to restart after removing the cut portion." The "Resume" button for resuming the transportation of the paper may be displayed. When the "Resume" button is pressed after the user removes the cut portion, the process from S105 in FIG. 6 may be repeated. Further, along with the "restart" button, an "end" button for ending the transfer of the roll paper R1 to the recording position of the recording head 3 may be displayed.

As described above, according to the present embodiment, when it is determined that there is no improper mounting of the roll paper R1 in the roll paper mounting portion 4a and no defect in the shape of the roll paper before recording by the recording head 3. You can proceed to the recording process. Further, it is possible to perform control according to a possible cause of skewing such as improper mounting of the roll paper R1 in the roll paper mounting portion 4a or a defect in the shape of the roll paper. Further, as shown in FIG. 5A, since the paper width detection sensor 500 and the sensor carriage 501 are provided in the recovery unit 51, the operation of the present embodiment can be realized without requiring a large structural change. can do. Further, in FIG. 7, when the difference between the paper width 1 and the paper width 2 is equal to or less than the threshold value in S204, it is determined that there is no problem in the shape of the roll paper R1, but the paper width 1 and the paper width 2 When it is determined that the difference is equal to or less than the threshold value, the state on the surface of the roll paper R1 (for example, the uneven state such as wrinkles) may be determined. For example, when it is determined that there is a wrinkle, the process proceeds to S208 instead of proceeding to S205. With such a configuration, it is possible to prevent skewing during the recording process due to wrinkles even if there is no breakage or tearing.

The present invention supplies a program that realizes one or more functions of the above-described embodiment to a system or device via a network or storage medium, and one or more processors in the computer of the system or device reads and executes the program. It can also be realized by the processing to be performed. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

The invention is not limited to the above embodiment, and various modifications and modifications can be made without departing from the spirit and scope of the invention. Therefore, a claim is attached to publicize the scope of the invention.

1 Recording device: 401 Main controller: 419 Print controller: 51 Recovery unit: 500 Paper width detection sensor: 501 Sensor carriage: 502, 503 Guide: 504 Feed path: 505 Guide position detection sensor

Claims (14)

A storage means for accommodating seats and
A feeding means for feeding the sheet housed in the housing means onto the transport path, and a feeding means.
A recording device including a transport means for transporting a sheet fed on the transport path by the feed means to the recording means in the transport direction.
The first detecting means for detecting the distance between the regulating members that regulate both ends of the sheet, and
A second detection means that is located downstream of the first detection means and upstream of the recording means in the transport direction on the transport path and detects the width of the sheet on the transport path.
A control means for controlling the transport of the sheet based on the detection result by the first detection means and the detection result by the second detection means.
A recording device characterized by being provided with. The recording device according to claim 1, wherein the regulating member regulates the positions of both ends of a sheet rotatably held in a roll shape by the accommodating means. The recording device according to claim 1 or 2, wherein the control means stops the transport of the sheet when the detection result by the first detection means and the detection result by the second detection means are different. The second detecting means detects the width of a plurality of places on the sheet and determines the width of the sheet.
A claim further comprising a notification means for notifying a user based on the detection result by the second detection means when the detection result by the first detection means and the detection result by the second detection means are different. Item 3. The recording device according to item 3. The recording device according to claim 4, wherein the plurality of portions of the sheet include a portion near the tip of the sheet and a portion different from the vicinity of the tip. The recording device according to claim 4 or 5, wherein the notification means gives a notification regarding the accommodation means based on the determination that the widths of the plurality of portions of the sheet are the same. The sheet is roll paper and is
The recording device according to claim 6, wherein the notification regarding the accommodating means is a notification regarding the state of the regulating member with respect to the roll paper in the accommodating means. The recording device according to any one of claims 4 to 7, wherein the notification means notifies the sheet based on the determination that the widths of the plurality of portions of the sheet are different. The recording device according to claim 8, wherein the notification regarding the sheet is a notification regarding the shape of the sheet. The recording device according to claim 9, wherein the shape of the sheet is the shape of the tip of the sheet. The recording device according to any one of claims 1 to 10, wherein the second detection means is a sensor that detects the width by scanning in the width direction of the sheet. 11. The recording device according to claim 11, wherein the recording means is a full-line recording head, and the sensor is provided in a recovery unit of the full-line recording head. 12. The recording device according to claim 12, wherein the sensor detects the width of the sheet after the full-line recording head moves to a retracted position during a recovery operation by the recovery unit. A storage means for accommodating seats and
A feeding means for feeding the sheet housed in the housing means onto the transport path, and a feeding means.
A control method executed in a recording device including a transport means for transporting a sheet fed on a transport path by the feed means in a transport direction to a recording means.
The first detection step that detects the spacing between the regulatory members that regulate both ends of the sheet, and
A second detection step of detecting the width of the sheet on the transport path, which is located downstream of the restricting member in the transport direction on the transport path and upstream of the recording means.
A control step for controlling the transfer of the sheet based on the detection result in the first detection step and the detection result in the second detection step.
A control method characterized by having.

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