JP2009279889A - Recording device - Google Patents

Abstract

A recording apparatus capable of transitioning to a standby state capable of recording in a short time after a power button is pressed.
When a power button is pressed in a power-off state, a control device 7 refers to each flag indicating a device state stored in a storage unit. The abnormal end flag is “0” (normal end), the simple reset flag indicating that the carriage is correctly positioned at the home position is “1” (simple reset is possible), and the paper presence / absence flag is “0” (no paper) In this case, a simple reset operation having a smaller operation configuration than the all reset operation is selected and executed. On the other hand, if the abnormal end flag is “1” (abnormal end), the simple reset flag is “0” (simple reset is not possible), or the paper presence / absence flag is “1” (paper present), all Select and execute the reset operation.
[Selection] Figure 6

Description

  The present invention relates to a recording apparatus typified by a facsimile or a printer, and more particularly to a recording apparatus characterized by a reset operation when the power is turned on.

A recording apparatus typified by a facsimile or a printer performs a reset (initialization) operation of each drive target (movable part) when the power is turned on. The reset operation performed when the power is turned on includes, for example, a paper discharge operation assuming that paper remains in the apparatus, a carriage home position seek assuming that the carriage has been moved by the user, and other home position sensors. Includes no movable part home position seek, etc. An example of the carriage home position seek is disclosed in Patent Document 1, for example. Moreover, the movable part which does not have a home position sensor is shown by patent document 2, for example.
JP 2005-238557 A JP 2007-001071 A

  However, since the conventional recording apparatus performs an all reset operation that initializes all the driving objects every time the power is turned on, it is uniformly long from when the power button is pressed to when the recording apparatus enters a standby state where recording is possible. It took time. Patent Document 1 discloses a serial printer that includes a high-accuracy home seek and a simple home seek as carriage home seek modes, and selects either one based on printing conditions. There is no description or suggestion of the reset operation.

  Accordingly, the present invention has been made in view of such circumstances, and an object of the present invention is to obtain a recording apparatus capable of transitioning to a standby state in which recording can be performed in a short time after the power button is pressed under a certain condition. There is.

  In order to solve the above problems, a recording apparatus according to a first aspect of the present invention includes a recording unit that performs recording on a recording medium, a conveying unit that conveys the recording medium, the recording unit, and the conveying unit. Control means for controlling, wherein the control means stores in the storage means a flag indicating the state of at least one of the components of the recording apparatus including the recording means and the conveying means. The flag is stored, the flag is referred to when the power is turned on, and the reset operation content of the recording apparatus performed when the power is turned on is determined based on the flag.

  According to this aspect, the control unit of the recording apparatus holds the flag indicating the state of the component of the recording apparatus, refers to the flag when the power is turned on, and determines the reset operation content to be performed when the power is turned on based on the flag Therefore, by selecting and performing a necessary reset operation based on the flag, it is possible to transition from a power-on to a standby state in which recording is possible in a short time.

  A recording apparatus according to a second aspect of the present invention is the recording apparatus according to the first aspect, further comprising medium detection means for detecting the recording medium in a conveyance path of the recording medium, wherein the control means is detected by the medium detection means. Based on the information, a medium presence / absence flag indicating whether or not a recording medium remains in the transport path is held in the storage unit, and as a result of referring to the medium presence / absence flag when the power is turned on, the medium presence / absence flag is When the recording medium indicates that the recording medium remains in the conveyance path, the all reset operation of the recording apparatus is executed, and the medium presence flag indicates that the recording medium does not remain in the conveyance path. In this case, the simple reset operation constituted by a smaller number of operations than the all-reset operation, which is set in advance, is performed by referring to it together with other flags. To.

  When the medium presence / absence flag indicates that the recording medium remains in the recording medium conveyance path when the power is turned on, each component of the recording apparatus is moved by the user's hand due to the occurrence of a paper jam or the like. It is assumed that Therefore, in such a case, by performing an all reset operation of the apparatus, the apparatus can be corrected to an appropriate standby state before the start of recording, and an actual recording operation performed thereafter can be appropriately performed.

  If the recording medium presence flag indicates that no recording medium remains in the recording medium conveyance path, there is no abnormality in the apparatus when the power is turned off last time, and the power is turned on from the previous power-off. In the meantime, it can be expected that the apparatus is maintained in an appropriate end state after the power is turned off. Therefore, in such a case, by performing a simple reset operation, it is possible to shift from a power-on to a standby state in which recording can be performed in a short time.

  The recording apparatus according to a third aspect of the present invention is the recording apparatus according to the first or second aspect, wherein the control means determines whether or not the end operation performed when the power is turned off is not correctly executed and whether the power is turned off. An abnormal end flag indicating at least one of whether or not the power is turned off in a state where a fatal error has occurred in the apparatus is held in the storage unit, and as a result of referring to the abnormal end flag when the power is turned on, the abnormal end flag is If the abnormal operation is terminated when the power is turned off without the termination operation being executed correctly, or when the fatal error occurs, the abnormal termination is performed when the power is turned off. The end flag is a small number of normal ends when the end operation is correctly executed and normal ends when the power is turned off in a state where the fatal error does not occur. When at least one of them is indicated, a simple reset operation constituted by a smaller number of operations than the all-reset operation set in advance is performed by referring to the flag or another flag. It is characterized by.

  According to this aspect, when the abnormal end flag indicates an abnormal state when the power is turned on, the control unit performs an all-reset operation of the apparatus, so that it is expected that the apparatus is corrected to a proper standby state before the start of recording. Therefore, it can be expected that the actual recording operation performed thereafter will be appropriately performed.

  When the abnormal end flag indicates a normal state, it can be expected that the apparatus is maintained in an appropriate end state after the power is turned off between the previous power-off and the current power-on. Therefore, in such a case, by performing a simple reset operation, it is possible to shift from a power-on to a standby state in which recording can be performed in a short time.

  A recording apparatus according to a fourth aspect of the present invention is the recording apparatus according to any one of the first to third aspects, wherein the recording means includes a recording head and the recording head and can reciprocate in the scanning direction of the recording head. A carriage lock means for locking the carriage so that the carriage does not move from the home position, and the control means is configured to turn the carriage home position when the power is turned on. If the carriage is not at the home position and is not locked by the carriage lock means as a result of executing the seek and the carriage lock operation by the carriage lock means, the all reset operation of the recording apparatus is performed. And the carriage is moved to the home position. And is configured by a smaller number of operations than the all-reset operation set in advance by referring to other flags together with the carriage-locking means. A simple reset operation is performed.

  If the carriage is in a position other than the home position and not locked by the carriage lock means despite the execution of the carriage home position seek and the carriage lock operation, an abnormal state that inhibits the carriage operation (for example, paper It is assumed that a jam has occurred. Therefore, it can be expected that an abnormal state that hinders the operation of the carriage is eliminated by performing the all reset operation of the apparatus in such a case.

  If the carriage is at the home position and is locked by the carriage lock means, there was no abnormality in the device when the power was turned off the last time, and the device was turned off between the previous power-off and the current power-on. It can be expected that it will be maintained in an appropriate final state later. Therefore, in such a case, by performing a simple reset operation, it is possible to shift from a power-on to a standby state in which recording can be performed in a short time.

  A recording apparatus according to a fifth aspect of the present invention is the recording apparatus according to any one of the first to fourth aspects, wherein the thin plate-like body can be set by advancing outside the apparatus, and recording is performed on the thin plate-like body. A tray that is displaceable inside the recording apparatus so as to be able to take a recording position that is retracted into the apparatus, a tray driving means that displaces the tray, and the tray is at the storage position. A tray storage detecting means for detecting the presence of the recording apparatus, and the control means is based on detection information of the tray storage detection means when the power is turned on, and when the tray is not in the storage position, the all reset of the recording apparatus. When the tray is in the stowed position, the preset all-reset operation is performed by referring to other flags. And executes a simple reset operation configured with fewer operations.

  When the tray is not in the stowed position, it is assumed that an abnormal state that impedes the operation of the tray has occurred. Therefore, it can be expected that an abnormal state that hinders the operation of the carriage is eliminated by performing the all reset operation of the apparatus in such a case.

  Also, when the tray is in the stowed position, there was no abnormality in the device when the power was turned off last time, and the device was kept in the proper end state after the power was turned off between the previous power-off and the current power-on. Can be expected. Therefore, in such a case, by performing a simple reset operation, it is possible to shift from a power-on to a standby state in which recording can be performed in a short time.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side sectional view showing a sheet conveyance path of an ink jet printer (hereinafter referred to as “printer”) 1 as an embodiment of a recording apparatus according to the present invention. FIG. 2 is a front view of a power transmission switching device 50 and a control system. FIG. 3 is a block diagram of a control system centering on the control device 7. FIG. 4 is an explanatory diagram schematically showing the movement area of the carriage 40. FIG. 5 is a flag showing the state of each component of the printer 1. 6 and 7 are flowcharts showing the processing contents executed by the control device 7 when the power is turned on, and FIG. 8 is a flowchart showing the processing contents executed by the control device 7 when the power is turned off.

  Hereinafter, the configuration of the printer 1 will be described with reference to FIGS. 1 to 4. The printer 1 includes a feeding device 2 at the bottom of the device, feeds recording sheets P one by one from the feeding device 2, performs ink jet recording in the recording means 4, and is on the front side of the device (left side in FIG. 1). A configuration is provided for discharging toward a discharge stacker (not shown) provided.

  The feeding device 2 includes a paper cassette 11, a pickup roller 16, a guide roller 20, and a separating unit 21. A paper cassette 11 capable of storing a plurality of sheets P in a stacked state is configured to be attachable to and detachable from the front side of the apparatus main body of the feeding apparatus 2, and a PF (paper feeding) motor 71 (FIG. 2). The pick-up roller 16 that is driven to rotate is provided on a swinging member 17 that swings about a swinging shaft 18, and rotates in contact with the sheet stored in the sheet cassette 11, so that the uppermost sheet is formed. P is sent out from the paper cassette 11.

  A separating member 12 is provided at a position facing the leading edge of the paper stored in the paper cassette 11, and the leading edge of the uppermost paper P to be fed advances downstream while sliding on the separating member 12. First-stage separation from the next and subsequent sheets P is performed. A free-rotating guide roller 20 is provided on the downstream side of the separating member 12, and further, on the downstream side thereof, the second stage separation of the paper P, which includes the separation roller 22 and the driving roller 23, is performed. Separation means 21 is provided.

  On the downstream side of the separating unit 21, a driving roller 26 that is rotationally driven by a PF motor 71 (FIG. 2) and an assist roller 27 that is driven to rotate while the paper P is nipped between the driving roller 26 are provided. A configured first intermediate feeding unit 25 is provided, and the first intermediate feeding unit 25 feeds the paper P further downstream. Reference numeral 29 denotes a driven roller that reduces a paper passing load when the paper P passes through the curved inversion path (particularly when the paper trailing edge passes).

  On the downstream side of the driven roller 29, a drive roller 32 that is rotationally driven by a PF motor 71 (FIG. 2) and an assist roller 33 that is driven to rotate while the paper P is nipped between the drive roller 32 are provided. The second intermediate feeding portion 31 is provided, and the second intermediate feeding portion 31 feeds the paper P further downstream.

  The recording unit 4 is disposed on the downstream side of the second intermediate feeding unit 31. The recording unit 4 includes a conveying unit 5, a recording head 42, a paper guide front 39, and a discharging unit 6. The transport means 5 includes a transport drive roller 35 that is rotationally driven by a PF motor 71 (FIG. 2), and a transport driven roller 36 that is pivotally supported on the paper guide 37 so as to be driven to rotate while being pressed against the transport drive roller 35. The paper P is precisely fed toward the position facing the recording head 42 by the transport means 5.

  Reference numeral 74 denotes a paper detection sensor (for example, constituted by an optical sensor) as a medium detection means for detecting the passage of the paper P. The control device 7 described later uses the paper detection sensor 74 to detect the paper. The passage of the front end or rear end of P can be detected.

  The recording head 42 is provided at the bottom of the carriage 40. The carriage 40 is guided by a CR (carriage) motor 70 (FIG. 2) while being guided by a carriage guide shaft 41 extending in the main scanning direction (the front and back direction in FIG. 1). Driven to reciprocate in the scanning direction. A pre-paper guidance 39 is provided at a position facing the recording head 42, and the distance between the paper P and the paper P is defined by the pre-paper guidance 39.

  The carriage guide shaft 41 can be moved up and down by an auto gap adjusting mechanism (hereinafter referred to as “APG mechanism”) (not shown), and the recording head 42 according to the thickness of the medium to be recorded by this APG mechanism. The distance between the head surface and the paper guide front 39 (gap: hereinafter also referred to as “PG” as appropriate) can be adjusted.

  Here, the carriage guide shaft 41 is supported by side frames 8A and 8B constituting the base of the printer 1 as shown in FIG. 4, and the home position of the carriage 40 is set on the side frame 8A side. At this home position, a lock lever 47 is provided as a locking means for locking the carriage 40 so as not to move from the home position.

  The lock lever 47 is provided so as to be able to advance and retract with respect to the carriage 40 by a carriage lock lever advancing / retreating mechanism 76. When the lock lever 47 is advanced, the tip of the lock lever 47 is fitted into a hole 40a formed in the carriage 40, and the carriage 40 is moved to the home position. Lock to.

  Reference numeral 48 denotes a capping device for sealing the nozzle surface of the recording head 42. The capping device 48 includes an elevating mechanism (not shown), and retracts downward when the carriage 40 is on the recording area side. When the carriage 40 moves to the home position side, the carriage 40 engages with the carriage 40 and is pushed by the carriage 40, so that the nozzle surface of the recording head 42 is raised to a sealing position.

  The capping device 48 communicates with a pump device (not shown), and performs maintenance such as generating negative pressure inside the cap by the pump device and sucking ink from the ink discharge nozzles of the recording head 42.

  Reference numeral 75 denotes a PW sensor. The PW sensor 75 is an optical sensor provided at the bottom of the carriage 40. The PW sensor 75 emits light toward the front 39 of the paper guide and reflects the reflected light. And a light receiving unit (not shown) for receiving light. Then, the reflectance difference on the paper guide 39 is detected, whereby the control device 7 can detect the width of the paper P by the presence of the paper P and the sensing of the PW sensor 75 accompanying the movement of the carriage 40. .

  Subsequently, returning to FIG. 1, the discharge means 6 provided on the downstream side of the paper guide front 39 is in contact with the discharge drive roller 44 rotated by the PF motor 71 (FIG. 2) and the discharge drive roller 44. The paper P that is configured to include a driven driven roller 45 that is driven to rotate and is recorded by the recording unit 4 is discharged by the discharging unit 6 to a stacker (not shown) provided on the front side of the apparatus.

  The printer 1 includes a double-side unit (not shown) that is detachable on the rear side of the apparatus, and the second surface opposite to the first surface of the paper P on which recording is performed is opposed to the recording head 42. The curve is reversed so that recording can be performed on both sides of the paper P.

  The printer 1 has a built-in disc tray 10 on which an optical disc (not shown) as an example of a thin plate can be set. By setting the optical disc on the disc tray 10, ink jet recording can be performed directly on the label surface. It is possible.

  The disc tray 10 can be displaced between a storage position shown in FIG. 1 and a set position where the optical disc can be set by advancing to the downstream side of the discharge means 6 by a tray driving unit (not shown). A recording position for recording by the recording head 42 is arranged between the storage position and the set position. Further, a tray detection sensor 76 (FIG. 3) is provided at the storage position of the disk tray 10, and the tray detection sensor 76 can detect whether or not the disk tray 10 is in the storage position.

  Further, when recording on the optical disk is performed, the discharge driven roller 45 is switched to the retracted position so that the discharge driven roller (spur) 45 having a plurality of teeth along the outer periphery does not contact the label surface of the optical disk. In FIG. 1, reference numeral 46 denotes a paper discharge frame that supports the discharge driven roller 45. This paper discharge frame 46 is shown by a solid line and a virtual line in FIG. It can be moved up and down, and the position where the discharge driven roller 45 comes into contact with the medium and the position (reference numeral 45 ') away from the medium are displaced according to the type of medium on which recording is performed.

The above is the configuration of the printer 1, and the control device 7 and its surrounding components will be described below with reference to FIGS.
As shown in FIG. 2, the printer 1 includes two motors as power sources, one of which is a PF (paper feed) motor 71 and the other is a CR (carriage) motor 70. These two motors are controlled by the control device 7.

  The PF motor 71 is a common drive source for rollers provided in the paper conveyance path, such as the drive roller 35 (conveyance unit 5), the drive roller 44 (discharge unit 6), and the drive roller 32 (second intermediate feed unit 31). In addition, various driven parts that require power in the printer 1 are selectively driven via the power transmission switching device 50.

  In FIG. 2, mechanism A to mechanism F indicate the plurality of driven parts. Hereinafter, mechanism A to mechanism F will be collectively referred to as “driven parts” as appropriate. In the present embodiment, the mechanisms A to F correspond to the above-described feeding device 2, and a pump device (not shown), an APG mechanism, a duplex unit, a tray driving unit, and a discharge frame lifting / lowering unit.

  The power transmission switching device 50 uses the driving roller 35 as a power shaft, receives the rotational torque of the PF motor 71 via the driving roller 35, and transmits the rotational torque to the selected driven part. Reference numerals 59A to 59F denote input gears included in each driven part. For example, when rotational torque is transmitted to the input gear 59A, the mechanism A is activated.

  The power transmission switching device 50 can be switched between a first position and a second position by slidably displacing in the axial direction of the drive roller 35 (the front and back direction in FIG. 2), and the drive roller 35 is pivoted. The first planetary gear 57 and the second planetary gear 58 are supported on the arm member 55 so as to be freely rotatable.

  When the arm member 55 is located at the first position, the first planetary gear 57 meshes with the drive gear 56 provided on the drive roller 35, and the second planetary gear 58 meshes with any of the input gears 59A to 59F. As a result, the rotational torque is transmitted from the drive roller 35 to any one of the input gears 59A to 59F.

  The arm member 55 is urged toward the first position by an urging means (not shown). However, when the carriage engaging portion 55a is pushed against the urging means by the carriage 40, Switch to 2 positions (front direction in FIG. 2). In the second position, the second planetary gear 58 is positioned at a step position that does not mesh with the input gears 59A to 59F.

  The arm member 55 can swing about the driving roller 35 as a swing shaft as indicated by reference symbol a. By swinging the arm member 55, the second planetary gear 58 is moved to any one of the plurality of input gears 59A to 59F. Position it at a position where it can be meshed (connectable).

  Positioning pins 52A to 52F are provided in the vicinity of the input gears 59A to 59F. When the arm member 55 is in the first position, any of these positioning pins 52A to 52F is the arm member 55. It enters into the hole 55b formed in this. As a result, the swinging motion of the arm member 55 is restricted, and the meshing state between the second planetary gear 58 and any one of the input gears 59A to 59F is maintained.

  The above is the power transmission system of the printer 1, and the control system of the printer 1 will be described in further detail with reference to FIG. As described above, the printer 1 includes these two motors, that is, a CR (carriage) motor 70 and a PF (paper feed) motor 71, and the control device 7 controls each of the motors as a power source. Each component to be driven is controlled.

  The CR motor 70 is a drive source for the carriage 40, and the carriage 40 (recording head 42) moves in the main scanning direction (left-right direction in FIG. 4) as the CR motor 70 rotates. The position of the carriage 40 in the main scanning direction can be detected by a carriage position detecting means 72 constituted by a linear encoder or the like, whereby the control device 7 determines the position, moving direction, moving speed, etc. of the carriage 40. It can be detected.

  As described above, the PF motor 71 is a common drive source for each roller provided in the paper conveyance path, and its rotation amount (number of rotation steps) and rotation speed are detected by a rotation amount detection means (rotary encoder) 73. It has come to be. Thereby, the control device 7 can detect the rotation amount and the rotation speed of each roller provided in the sheet conveyance path.

In FIG. 3, the “always driving roller group” indicates these rollers of the driving roller 32, the conveyance driving roller 35, and the discharge driving roller 44 of FIG. 1, and these rollers are always in accordance with the rotation of the PF motor 71. Rotate. The carriage lock lever advance / retreat mechanism 76 performs the advance / retreat operation of the lock lever 47 by using the rotation direction switching of the PF motor 71. Next, the controller 7 will be described. An ASIC 60, a RAM 62, a ROM 63, an EEPROM 64, a CPU 65, and a timer IC 66 are connected to the system bus of the control device 7. The CPU 65 supplies power to the printer 1 through the ASIC 60, including various sensors and encoders such as a carriage position detection means 72, a rotation amount detection means 73, a paper detection sensor 74, a PW sensor 75, and a tray detection sensor 76. A signal such as a power button (not shown) for turning on / off is input.

  The CPU 65 performs arithmetic processing for executing paper feed control and recording control of the printer 1 and other necessary arithmetic processing based on output signals from the sensors and encoders of the printer 1. The ROM 63 stores a recording control program (firmware) and the like necessary for the control of the printer 1 by the CPU 65, and various data and the like necessary for the processing of the recording control program are stored in the EEPROM 64. The RAM 62 is used as a temporary storage area for the work area and recording data of the CPU 65.

  The ASIC 60 has a control circuit for performing rotation control of the CR motor 70 and the PF motor 71 which are DC motors and driving control of the recording head 42. The ASIC 60 performs various calculations for controlling the rotation of each motor based on the control command sent from the CPU 65, the output signal of the rotation amount detection means 73, and the output signal of the carriage position detection means 72, A motor control signal based on the calculation result is sent to the CR motor driver 68 and the PF motor driver 69.

  The ASIC 60 calculates and generates a control signal for the recording head 42 based on the recording data sent from the CPU 65 and sends it to the head driver 67 to control the driving of the recording head 42. The ASIC 60 includes an IF 61 that realizes information transmission with the external computer 90 and the like.

Next, processing contents performed when the printer 1 is turned on and processing contents performed when the printer 1 is turned off will be described with reference to FIGS.
The control device 7 of the printer 1 holds a plurality of flags shown in FIG. 5 in a storage means (for example, a nonvolatile memory such as the EEPROM 64 in FIG. 3) as a flag indicating the state of each component of the device. Update the value accordingly. Hereinafter, each flag will be outlined.

  The simple reset flag takes one of the values “0” and “1”, and a) the carriage 40 is in the home position, b) the carriage 40 is locked by the lock lever 47 (FIG. 4), c) When the disk tray 10 (FIG. 1) is in the storage position, when all of the above a) to c) are satisfied, “1” (simple reset is possible) and any one of the above a) to c) However, when it is not satisfied, it is set to “0” (simple reset is impossible).

  This simple reset flag is one of the flags for determining whether or not a simple reset operation (described later) constituted by a smaller number of operations than the all reset operation (described later) can be executed. When all of c) are satisfied, it is assumed that no abnormality has occurred in the apparatus, and therefore, “1” (simple reset is possible) is set.

  The paper presence / absence flag takes one of the values “0” and “1”. When the paper does not remain in the paper conveyance path, it is “0” (no paper), and when the paper remains in the paper conveyance path Is “1” (paper present). This paper presence / absence flag is set to “0” in the print standby state, and is set to “1” at the start of paper feeding. When the paper discharge operation is performed after the printing is completed and the paper detection sensor 74 does not detect the paper, it is set to “0”.

  The abnormal end flag takes one of the values “0” and “1”, and is set to “0” (normal end) when an operation performed when the power is turned off, which will be described later, ends normally. If digitization has not been completed or if a fatal error has occurred, it is set to “1” (abnormal termination).

  The discharge frame raising / lowering flag takes one of the values “0” and “1”, and is set to “0” (Down) when the discharge frame 46 is in the lowered position, and “ Set to 1 ″ (Up).

  The mechanical initialization completion flag takes one of the values “0” and “1”, and is set to “1” (completed) when the initialization operation performed when the power is turned on, which will be described later, is normally completed. If the operation has not ended normally, it remains “0” (incomplete).

  The Fatal Error flag takes either a value of “0” or “1” and is normally set to “0” (no error). For example, the carriage lock cannot be released. When an error (error that cannot be self-recovered) occurs, it is set to “1” (error occurrence).

  The PG flag is a flag indicating in which position the PG switched by the APG mechanism is located, and in order from the smallest PG, "1" (PG "-"), "2" (PG "Typ"), The values “3” (PG “+”) and “4” (PG “++”) are taken.

  The reset operation (device initialization operation) when the power is turned on will be described below with reference to FIGS. In this specification, the device resetting operation performed when the power is turned on refers to a specific appropriate device when starting the operation (printing operation in this embodiment) for achieving the original purpose of use of the device. For example, when there are a plurality of movable parts that can execute the initialization operation, the initialization is performed for a part or all of the movable parts necessary for the specific appropriate state. Means to perform an action. In particular, the all-reset operation means that the initialization operation is performed for all the movable parts necessary for the specific appropriate state.

  The initialization operation of the movable part is, for example, a seek operation for detecting the current position if it is a movable part that switches to a plurality of positions and does not have a means (sensor) for detecting the current position. In the case of a movable part that is an execution and has a home position, it means an operation of moving the movable part to the home position.

  In this specification, power on means a state in which the user can recognize that the device is in a power off state (for example, the operation panel is turned off and the device operates only when various operation execution buttons are pressed). Means that the power button is pressed to start using the device.

  First, when the power is turned on in FIG. 6, the simple reset flag is set to “0” (step S101), and the value of the mechanism initialization completion flag is determined (step S102). Here, when the mechanical initialization completion flag is “1” (positive branch), the reset operation ends.

  When the mechanical initialization completion flag is “0” (negative branch), carriage home position seek is performed (step S103). In this carriage home position seek, a change in the drive current value of the CR motor 70 when the carriage 40 is moved toward the side frame 8 </ b> A, and the carriage 40 is moved left and right with the lock lever 47 advanced toward the carriage 40. A change in the drive current value of the CR motor 70 when the motor is moved to the right will be described. Accordingly, it is determined whether or not the carriage 40 is at the home position and is locked by the lock lever 47.

  When the carriage 40 is at the home position and is locked by the lock lever 47 and the disc tray 10 is at the storage position, the simple reset flag is set to “1”.

  Next, the value of the abnormal end flag is determined (step S104). If “1” (abnormal end) (positive branch), an all reset operation (after step S110) is executed and “0” (normal end). In the case of (No), the simple reset operation (after step S107) is executed by referring to the simple reset flag and the paper presence / absence flag.

  Next, the value of the simple reset flag is judged (step S105). If “0” (simple reset is impossible) (negative branch), the all reset operation (step S110 and subsequent steps) is executed, and “1” (simple In the case of (reset is possible) (negative branch), the simple reset operation (after step S107) is executed by referring to the sheet presence / absence flag.

Next, the value of the paper presence / absence flag is determined (step S106). If “1” (paper is present) (positive branch), an all reset operation (step S110 and subsequent steps) is executed, and “0” (paper is absent). In the case of (No), a simple reset operation (step S107 and subsequent steps) is executed.
As described above, the all-reset operation is selected if each flag indicates an abnormal state of the device when the power is turned on, and if each flag indicates the normal state of the device, it is completed in a shorter time than the all-reset operation. The simple reset operation to be performed is selected.

  The difference between the simple reset operation and the all reset operation is that, in the case of the simple reset operation, first, the value of the discharge frame raising / lowering flag is determined (step S107), and in the case of “1” (upward position) (negative branch), A sequence for returning the paper discharge frame 40 to the lowered position is executed (step S108).

  When the discharge frame raising / lowering flag is “0” (lowering position) (Yes in step S107), the APG mechanism is operated to switch the PG position to “1” (PG “−”) (step S109). .

  On the other hand, in the all reset operation, first, a PF initialization sequence (step S110), which is an operation for discharging the paper inside the apparatus, is executed. Next, the value of the paper presence / absence flag is determined (step S111). If “1” (paper present) (affirmative branch), it is determined that paper jam or the like has not been eliminated, and the reset operation is terminated. If it is “0” (no paper) (negative branch), a paper discharge frame initialization sequence is executed (step S112).

  In this paper discharge frame initialization sequence, instead of simply switching the paper discharge frame 46 from the raised position to the lowered position or from the lowered position to the raised position as in step S108, the paper discharge frame 46 is moved up and down. The current state of the paper discharge frame 46 is acquired while referring to the driving current value of the PF motor 71 to be positioned, and the paper discharge frame 46 is positioned at the lowered position.

  That is, since a sensor for detecting whether the paper discharge frame 46 is in the raised position or the lowered position is not provided, the rotation direction of the PF motor 71 is switched (forward / reverse rotation) and the PF motor 71 is driven at that time. By detecting an increase in the current value, the current state of the paper discharge frame 46 is acquired.

  Next, an APG initialization sequence is executed (step S113). In this APG initialization sequence, the PG position is switched to “1” (PG “−”). However, as in the paper discharge frame initialization sequence, the PG position is not simply switched as shown in step S109, for example. Instead, the PG position is switched to “1” (PG “−”) after acquiring the current state of the PG position while referring to the drive current value of the PF motor 71 that drives the APG mechanism.

  That is, since a sensor for detecting which PG position the APG mechanism is currently in is not provided, the rotation direction of the PF motor 71 (forward / reverse rotation) and the drive current value of the PF motor 71 at that time are increased. By detecting, the current state of the APG mechanism is acquired.

  As described above, the all reset operation includes an initialization operation for grasping the current state of the drive mechanism without the position sensor, and the simple reset operation does not include such an initialization operation. It ends in a shorter time than the all reset operation.

  Next, operations common to the all reset operation and the simple reset operation after step S114 (FIG. 7) will be described. First, a PF measurement sequence is executed (step S114). This PF measurement sequence is to obtain a load when driving each roller provided in the paper conveyance path by the PF motor 71. The PF motor 71 is rotated at a predetermined rotational speed, and the drive current value at that time is calculated. This is a known method to be obtained, and details thereof are disclosed in, for example, Japanese Patent Laid-Open No. 2003-79172.

  Subsequently, CR measurement sequence and PW sensor VH detection are executed (step S115). Similar to the PF measurement sequence, the CR measurement sequence is for obtaining a load when the carriage 40 is driven by the CR motor 70. The CR motor 70 is rotated at a predetermined rotational speed, and the drive current value at that time is calculated. This is a known method for obtaining. The PW sensor VH detection performed simultaneously is for obtaining the output current value of the PW sensor 75 in the absence of paper, and for setting a threshold value for determining whether paper is present or not.

  Subsequently, the APG mechanism is operated to switch the PG position to “1” (PG “−”) (step S116), then the carriage 40 is locked by the lock lever 47 (step S117), and the abnormal end flag is set to “0”. (Normal end) is set (step S118), and the mechanical initialization completion flag is set to “1” (completed) (step S119). This completes the reset operation when the power is turned on.

  Next, the apparatus ending operation when the power is turned off will be described with reference to FIG. When the power button is pressed in the power-on state, a mechanism initialization completion flag is first determined (step S301). When the mechanical initialization completion flag is “0” (incomplete) (negative branch), it is assumed that some abnormality has occurred during execution of the reset operation when the power is turned on, so the abnormal end flag is set to “1” ( (Abnormal end) (step S317), each flag value is written in the storage means (for example, EEPROM 64) (step S316), and the process ends.

  If the mechanical initialization completion flag is “1” (completed) (affirmative branch), the Fatal Error flag is determined (step S302). If it is “1” (error occurred), abnormal termination occurs. The flag is set to “1” (abnormal end) (step S317), each flag value is written in the storage means (for example, EEPROM 64) (step S316), and the process ends.

  If the Fatal Error flag is “0” (negative branch), it is determined whether or not the power saving mode is being changed (step S303). If the power saving mode is being changed (positive branch), the power saving is determined. A sequence for returning from the mode to the normal mode is executed (step S304).

  Next, it is determined whether or not the disc tray 10 is in the storage position (step S305). If it is in the storage position (positive branch), a paper discharge sequence is executed (step S309). If the disc tray 10 is not in the storage position (negative branch), it is determined whether or not the disc tray 10 is in the print standby position (step S306). A sequence for storing 10 in the storage position is executed (step S307), and it is determined again whether or not it is in the storage position (step S308).

  If it is in the storage position (Yes in step S308), the APG mechanism is operated to switch the PG position to “1” (PG “−”) (step S310). If the disc tray 10 is in the standby position in step S306 (positive branch) or not in the storage position in step S308 (negative branch), the process moves to step S311 and the carriage 40 is unlocked by the lock lever 47. It is determined whether or not the lock is released (step S311). If the lock is released (positive branch), the carriage 40 is locked by the lock lever 47 (step S312).

Next, the mechanical initialization completion flag is set to “0” (step S313), the value of each flag is written in the storage means (step S314), and the process ends.
As described above, the control device 7 selects the all reset operation if each flag indicates an abnormal state of the device when the power is turned on, and if each flag indicates the normal state of the device, the control device 7 selects the all reset operation. Since the simple reset operation that is completed in a shorter time than the reset operation is selected, it is possible to transition from a power-on to a standby state that allows recording in a short time by selecting the simple reset operation.

  In this embodiment, two reset operation patterns that are executed when the power is turned on are set: an all reset operation and a simple reset operation. However, the present invention is not limited to this, and more reset operation patterns can be selected depending on the device configuration. It can also be set. It is also possible to configure an operation pattern to be selected and executed every time the power is turned on.

FIG. 3 is a side sectional view showing a paper conveyance path of the printer according to the invention. The front view of a power transmission switching device, and the block diagram of a control system. 1 is a block diagram of a control system centering on a printer control apparatus according to the present invention. FIG. 3 is an explanatory diagram schematically showing a carriage movement region. 4 is a table showing flags and values indicating the status of each component of the printer according to the present invention. The flowchart which shows the processing content performed with a control apparatus at the time of power-on. The flowchart which shows the processing content performed with a control apparatus at the time of power-on. The flowchart which shows the processing content performed with a control apparatus at the time of power-off.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inkjet printer, 3 Feeding device, 4 Recording means, 5 Conveyance means, 6 Discharge means, 7 Control apparatus, 8A, 8B Side frame, 10 Disc tray,
DESCRIPTION OF SYMBOLS 11 Paper cassette, 12 Separation member, 16 Pickup roller, 17 Oscillation member, 18 Oscillation shaft, 20 Drive roller, 21 Separation means, 22 Separation roller, 23 Driving roller, 25 First intermediate feeding part, 26 Driving roller, 27 Assist roller, 29 driven roller, 31 second intermediate feed unit, 32 drive roller, 33 assist roller, 35 transport drive roller, 36 transport driven roller, 37 on paper guide, 39 before paper guide, 40 carriage, 41 carriage guide shaft, 42 recording head, 44 discharge drive roller, 45 discharge driven roller,
46 Paper discharge frame 46 Lock lever, 48 Capping device,
50 power transmission switching device, 52A to 52F positioning pin, 55 arm member, 55a carriage engaging portion, 55b hole, 56 drive gear, 57 first planetary gear, 58 second planetary gear, 59A to 59F input gear,
60 ASIC, 61 IF, 62 RAM, 63 ROM, 64 EEPROM, 65 CPU, 66 timer IC, 67 head driver, 68 CR motor driver, 69 PF motor driver, 70 CR motor, 71 PF motor, 72 carriage position detecting means, 73 Rotation amount detection means, 74 Paper detection sensor, 75 PW sensor, 76 Tray detection sensor, 90 External computer,
P Recording paper

Claims (5)

Recording means for recording on a recording medium;
Conveying means for conveying a recording medium;
A control device for controlling the recording means and the conveying means,
The control means holds a flag indicating the state of at least one of the components of the recording apparatus including the recording means and the conveying means in the storage means, refers to the flag when the power is turned on, and sets the flag And determining a reset operation content of the recording apparatus to be performed when the power is turned on. The recording apparatus according to claim 1, further comprising medium detection means for detecting the recording medium in a conveyance path of the recording medium,
The control means holds, in the storage means, a medium presence / absence flag indicating whether or not a recording medium remains in the transport path based on detection information of the medium detection means,
As a result of referring to the medium presence / absence flag when the power is turned on, if the medium presence / absence flag indicates that the recording medium remains in the transport path, the all reset operation of the recording apparatus is executed,
When the medium presence / absence flag indicates that the recording medium does not remain in the transport path, or by referring to other flags together, the preset all reset operation is performed. Perform a simple reset action consisting of a small number of actions,
A recording apparatus. 3. The recording apparatus according to claim 1, wherein the control unit is turned off in a state where a fatal error has occurred in the recording apparatus and whether or not a termination operation performed when the power is turned off is not performed correctly. An abnormal end flag indicating at least one of whether or not
As a result of referring to the abnormal end flag when the power is turned on, the abnormal end flag indicates an abnormal end in which the power is turned off without correctly executing the end operation, or an abnormal end in which the power is turned off in a state where the fatal error occurs. In this case, the all reset operation of the recording device is executed,
When the abnormal end flag indicates at least one of a normal end in which the end operation is correctly executed and a normal end in which the power is turned off in a state where the fatal error has not occurred, By referring to the flag together, a simple reset operation configured by a smaller number of operations than the all reset operation is executed in advance.
A recording apparatus. 4. The recording apparatus according to claim 1, wherein the recording unit includes a recording head and a carriage provided with the recording head and reciprocally movable in a scanning direction of the recording head. ,
The carriage home position is provided with a carriage lock means for locking the carriage so as not to move from the home position.
The control means performs a home position seek of the carriage and a lock operation of the carriage by the carriage lock means when the power is turned on, so that the carriage is at a position other than the home position and is locked by the carriage lock means. If not, execute the all reset operation of the recording device,
When the carriage is at the home position and is locked by the carriage lock means, a smaller number than the preset all-reset operation can be performed by referring to the flag in combination with the carriage. Perform a simple reset action consisting of actions,
A recording apparatus. 5. The recording apparatus according to claim 1, wherein a setting position at which the thin plate-like body can be set by advancing out of the apparatus, a recording position at which recording is performed on the thin plate-like body, and the inside of the apparatus A tray that can be displaced inside the recording apparatus so as to be able to take
Tray driving means for displacing the tray;
Tray storage detection means for detecting that the tray is in the storage position,
The control means executes an all-reset operation of the recording apparatus when the tray is not in the storage position based on detection information of the tray storage detection means when the power is turned on.
When the tray is in the storage position, a simple reset operation configured by a smaller number of operations than the all reset operation is performed in advance by referring to the flag or other flags.
A recording apparatus.

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