TW517017B - Printer - Google Patents

Abstract

This invention relates to a printer comprising a linear driving member for reciprocally moving a printing head unit along a constant direction, and an elastic spring exerting reversal energizing force on the printing head unit in the vicinity of both ends of a reciprocally moving section when the printing head unit is reciprocally moved and a detection member for detecting the position of the printing head unit and performing the following operation: a reversal control where in the reversal energizing force is applied to have the moving direction of the printing head unit reversed in an end section of the reciprocating zone, a stop control where a braking force is applied on the printing head unit for resisting the reversal energizing force after the reversal in order to have the printing head unit to stop in the vicinity of a target stop position and a restart control where the printing head unit is driven in the direction of the section after the stop control. The printer comprises a current control member for variably controlling supply of electrical current to the linear driving member based on the position of the printing head unit in the reciprocating zone detected by the detection member.

Description

517017 A7

V. Description of the invention (2) The sub-action day guard moves the print head unit back and forth, and at the same time transports the printing paper in a direction perpendicular to the direction of its back and forth movement, so that the ink ribbon is on the printing paper, and in this state, The printing head unit punches a printing paper, transfers ink to the printing paper, and applies printing. Mainly, divide the section where the print head unit moves back and forth, occupy the printing section where the central part performs printing operations during constant speed movement, occupy both ends of the back and forth movement section, and perform the paper feeding section during the reverse operation. . On the other hand, the reversing pushing force of the spring is equal to the reversing interval, which occupies the vicinity of the two ends of the reciprocating moving interval including the paper feeding interval. The turning interval and the printing interval will interfere with each other and become partially overlapping. That is, the print head unit is controlled in the following manner. When printing is performed continuously for each line, the print head unit moves from the printing interval to the reversing interval to change the direction, and then moves from the reversing interval to the reversing interval of the other through the printing interval, and repeats the operation. At this time, the paper feed operation is performed during the reversal of the print head unit in the paper feed section near the two ends in the reversal section. On the other hand, when the print head unit is reversed, the paper may not always be fed with a certain length, sometimes it is longer than usual, or the next line of print instructions is not sent. At this time, the print head unit causes the linear motor to generate a driving force against the pressure of the reversing stack of the spring, and retreats to a position where the reversing thrust force is less than that, causing the state to temporarily stop. Then, in response to the end of the paper feeding operation or receiving a print instruction, the back and forth movement of the print head unit is started again, so that when the paper feeding or print instruction is delayed longer than usual, it can also act quickly. However, continuous reverse, retreat, stop, start print head unit / U17

V. Description of the invention (3 The printing of Tatami 2 ’s prints by the Intellectual Property Bureau of the Ministry of Economy ’s Consumer Cooperatives is uneven, or it depends on the linearity of temperature changes, and there is no way to move the print control along a predetermined speed curve: 2: Figure 8 illustrates the traditional reversal, retreat, stop, start " Ming diagram 'as shown by the symbol C in this figure, when the linear motor force decreases with the upper temperature, the retraction action of the print head unit ⑻ s Filling knife 'print head ^ will move beyond the normally stopped position, move I method again from the normal stop position, and start again ^ σ = moving action' to disturb the movement speed. If the symbol D indicates the part, ^ The print head unit was restarted under the unstopped condition, so it could not be separated from the print interval, resulting in an operation error. ^ Therefore, the invention of this case is completed under the above-mentioned facts, and its task is to provide even 'reverse, retreat, When the print head unit is stopped and started, a printing device that does not reduce the print processing capacity and stabilize the operation can be used. In order to solve the above problems, the technical means of the present invention are as follows. 'According to the first aspect of the present invention, it can be provided with a linear driving member that makes the printing member move back and forth in a certain direction; the driving force of this linear driving member causes the printing member to move back and forth, near the two ends of the back and forth movement section A printing device of a reverse pressing member that applies a reverse pressing force to a printing member is characterized in that it includes a driving force that causes the linear driving member to oppose the reverse pressing force of the reverse pressing member, and temporarily evades the printing member. To the position where the reverse pushing force is not enough, and when the printing member is started immediately after retreating, it can be controlled in a variable manner. Returning this printing member from the retracted position will add the reverse pushing force of the reverse pushing member. Timing of the interval This paper size applies the Chinese National Standard (CNS) A4 specification (210 x 297 mm) 6 (Please read the precautions on the back before this page)-Install the thread · Thread · 517017 A7 V. Description of the invention (4 ( At the same time, it can be provided according to the second aspect of the present invention, and it has a linear drive mechanism with 7 stamp sub-members moving back and forth in a certain direction. ; When the driving force of the linear driving member causes the printing member to move back and forth, the printing device of the reverse pressing member that applies reverse pressing force to the printing member near the two ends of the back and forth movement section is characterized by including The driving member generates a driving force against the reverse pushing force of the reverse pushing member, so that the printing member is temporarily retracted to a position where the reverse pushing force is less than, and when the printing member is started immediately after retreating, it can be controlled in a variable manner. When the printing member is returned from the retreat position to the section where the reverse pushing force of the reverse pushing member is added, the control member of the linear drive member driving current should be supplied. At the same time, according to the third aspect of this dark invention, It can be provided with a linear driving member with β which causes the printing member to move back and forth in a certain direction; when the driving force of the linear driving member causes the printing member to move back and forth, a reverse pushing force is applied to the printing member near both ends of the back and forth movement section. The printing device for the reverse pushing member is characterized in that it includes a linear drive member that opposes the reverse pushing member. The driving force of the reverse pushing force temporarily retreats the printing member to a position less than the reverse pushing force, and then, when the printing member in the stopped state is restarted, it can be controlled in a variable manner to make the printing member retreat to the retreat stop. When in position, the control member of the duty ratio of the drive current of the linear drive member should be supplied. At the same time, according to the fourth aspect of the invention, it can be provided with a linear driving member that makes the printing member move back and forth in a certain direction; the driving force of this linear driving member makes the printing member move back and forth, which is applicable to the paper size. Zhongguanjia Standard (CNS) A; specifications ⑽ x 297 public) (Please read the precautions on the back before this page) · --line · Printed by the Intellectual Property Bureau Employee Consumption Cooperative of the Ministry of Economic Affairs 517017 Employee Consumption of the Intellectual Property Bureau of the Ministry of Economic Affairs Cooperative printed A7 ---------- 2Z _____- V. Description of the invention (5) The imprint device of the reverse pressing member which applies reverse pressing force to the printing member near the two ends of the interval is characterized by: It includes the driving force that causes the linear driving member to oppose the reverse pushing force of the reverse pushing member, temporarily retracts the printing member to a position where the reverse pushing force is less than, and then restarts the printing member in the stopped state. Control in a variable manner, a control member that should supply a drive current to the linear drive member when the printing member is retracted to the retreat stop position. a According to a preferred embodiment, when the pushing amount of the printing member is less than a certain amount, the control member repeatedly executes the restart of the printing member. According to another preferred embodiment, when the control component fails to succeed in restarting the printing component for a certain number of times, it is determined that the operation is incorrect. According to the first and second aspects of the invention, the printing member is moved back and forth, and the linear driving member generates a driving force, and the printing member is returned from the retreat stop position to the reversing interval where the reverse pushing pressure is applied. . At this time, the driving current may be supplied to the linear driving member in accordance with the operating condition change so as to start or end starting, or the driving current supplied to the linear driving member may be changed according to the operating condition. Therefore, when continuously reversing, retreating, stopping, and starting the print head unit, even if there are variations in the characteristics of the reversing pressing member or the change in driving force of the linear driving member due to temperature changes, it can still be based on the time Under appropriate conditions, the linear drive member is appropriately controlled, so that the printing operation accompanying the printing member's back and forth movement can be quickly restarted: the printing processing ability can be reduced, and the operation can be stabilized. At the same time, according to the 3rd and 4th aspects of the invention, when the printing Niu Yuehang retreats from the day guard, the driving member can be driven linearly according to the change of operating conditions.

(Please read the caution page on the back first) Installation ·-丨 Line · 517017 A7 B7 V. Invention Description (The ratio of the driving current printed and supplied by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, or change the supply according to the operating conditions : Driving current. Therefore, when the reversing, retreating, stopping, and starting of the print head are started early, even if there is unevenness in the dynamic characteristics of the reverse pushing member, or the driving force of the linear driving member changes due to temperature changes It is still possible to edit the linear components according to the shape of the material, so that the printing operation with the back and forth movement of the printing component can be restarted quickly, and the printing processing capacity can be reduced, and the operation can be stabilized. Other printing devices can be provided on the side. This printing device includes: a linear driving member that causes the printing member to move back and forth in a certain direction; and a reversal that applies a reverse pushing force to the printing member near the two ends of the reciprocating movement section of the printing member The pressing member; and a detecting member for detecting the position of the printing member, and performing the movement in the back and forth area In the vicinity of one of the ends, the reversing control for reversing the moving direction of the printing member by the reversing pushing force; after the reversing, a braking force against the reversing pushing force is applied to the printing member, thereby making the Retraction control for temporarily stopping the printing member near the target stop position; restart control for driving the printing member toward the one end after the retraction control, the printing device includes, based on the above detected by the detection member The current position of the printing member in the back-and-forth movement section is a current control member that controls the current supplied to the linear drive member in a variable manner. The current control member preferably includes, in the backoff control, the variable supply of the linear control The effect ratio of the current ratio of the drive member is the ratio of the control member. The above current control member preferably contains' in the above-mentioned backoff control, this paper size applies the Chinese National Standard (CNS) A4 specification (210 x 297 mm) -9. ( (Please read the precautions on the back before clicking this page) too · · · line · 517017 A7 V. Invention Ming (The Intellectual Property Bureau's Consumer Cooperatives of the Ministry of Economic Affairs has printed electricity generation control components that can control the current value supplied to the linear drive components in a stinking manner. ^ The current control components are preferably included. Variable-mode control of the current supplied to the linear drive member = ratio of action ratio control member. The current control member preferably includes a garment that, in the restart control, controls the current value supplied to the linear drive member in a variable manner. Value control means. ^ The current control means preferably includes a timing control means that controls the timing of ending the current supplied to the linear drive means in a variable manner during the restart control. Preferably, further includes After the feeding is avoided, the stopper control member is maintained near the target stop position until the print start k number is received. Preferably, it includes a temperature measurement in one step, and the current control means can control the current supplied to the linear drive means in a variable manner according to the ambient temperature measured by the temperature measurement device. As mentioned above, the control of the linear code when the print head 7L is continuously reversed, retreated, stopped, and started, can be executed a certain number of times when the printing structure is fixed, and it can return a certain amount of sub-components at a fixed time. At this time, instead of treating it as an error, it can be regarded as a normal action to start the printing action with the printing member moving back and forth. (Please read the precautions on the back before e this page): Installed J ^ T. · Ϊ · · This book according to the other features and advantages of the invention, can be described by referring to the following embodiments of the invention, Learn more.

517017 A7

The size of the paper is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) 11 Please read the notes on the back first

page

517017 A7 B7 V. Description of the invention (Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, the 4 fixed scales 2A, 2B are equipped with a majority of the coils C ... of the mover 2 (:. The mover 2C circulates in the coil C -—The driving current generates a moving magnetic field, and therefore the moving magnetic field acts on the permanent magnets G_— on the fixed scales 2A, 2B, and moves linearly between these fixed scales 2A, 2B. At the same time, the mover 2 (: In particular, as shown in FIG. 3, a constant velocity coil C1 which is mainly energized when moving at a constant speed and a reversing coil C2 which is mainly energized when changing the direction of movement are provided. The driving currents of ci and C2 are used as feedback control for the feedback control, which enables the mover 2C to perform constant speed / reverse movement and move back and forth at the same time. Returning to the first figure, the mover 2C is connected to the belt through the connecting rod 3B. The position of the belt of the pulley mechanism 3 on the side of the linear motor 2 is connected. On the other hand, the print head 7L1 is connected through the connecting rod 3C at the position of the belt and the belt of the pulley mechanism 3 away from the linear motor 2. . At the same time, mover 2 (: also via connecting cup 3A It is directly coupled to guide the movable stoppers 5C and 5D inserted on the fixed shaft 4 for pressing or separating the spring and 5B. Therefore, the print head unit 1 moves back and forth in the opposite direction to the mover 2C At the same time of movement, 'movable stop 5C, the direction of movement and movement of the mover are moved back and forth. Therefore, mover 2C has a balancer effect on the print head unit i which moves back and forth. ~ If the eighth body is clear, then,' this embodiment The printing device is used to apply printing to printing paper (not shown) such as continuous bills by a staggered impact method. The printing head unit 1 is equipped with a plurality of punches which are arranged in a matrix state in a direction perpendicular to the direction in which the printing paper is transported. (Not shown). This print head sheet W goes back and forth along the print line direction perpendicular to the conveying direction f of the printing paper (please read the precautions on the back before ipt this page) Binding · · · Line · This paper size applies _ Tsukasa Standard (cns) A4 Regulation ^

517017

When the printed clothing of the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs moves, the printing action of selectively punching the punch toward the printing money is performed. As a result, it can be completed at one time. 丨 Copy_ HP ^ if ^ ^ 1 /-t The printing operation of the court is performed when the head moves at a constant speed in the back and forth movement section, and the printing head is transported when the printing head moves backward in the reverse direction. That is, the interval of the print head unit 1 moving back and forth is divided, occupying a printing interval in which a central portion performs a printing action in a constant speed movement, and occupying a paper feeding interval of a slave-sleeve action towel feeding operation at the extreme ends of the returning movement interval. . On the other hand, the reverse pushing force of the springs 5A and 5B2 also acts in the printing section, so the reverse section and the printing section interfere with each other and are arranged to partially overlap. The operation of printing the ㈣M in the back and forth movement section will be described in detail in the detailed operation description section later. Fig. 4 is a block diagram of a microcomputer provided in the printing device of this embodiment, such as item #. The microcomputer is constituted by a bus that connects the magic view, RAM 12, and interface 13 to each other. The interface 13 is connected to a linear motor 2, a linear encoder 6, a thermal resistor 7, and the like. In addition to controlling the printing operation or paper feeding operation of the print head unit, the MPU 10 also controls the coils C1 and C2i supplied to the linear motor 2 to drive the motor, thereby controlling the back and forth movement of the print head unit 1. The MPU 10 of the drive current control means includes a current value control means that controls the current value in a variable manner, an effect ratio control means that controls the effect ratio of the current in a variable manner, and ends the supply of current to the coil ^, C2 in a variable manner. The timing control component of the timing. To explain in more detail, Μρυ10 uses the driving current as the control amount and linear motor 2 as the control object. On the other hand, when the print head unit 1 moves back and forth, it is based on the paper size that is successively detected through the linear encoder 6 and applies to China. National Standard (CNS) A4 specification (210 X 297 mm)

13 517017 V. Description of the invention (B7 The printing of the printing word si; p is calculated by the displacement of the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, and the movement speed is used as a feedback control. At this time, Qing 10 is in the reversal interval. If the print head unit 1 is reversed in the paper feed interval of ㈣ ^^^^, the paper feed operation is also controlled at the same time. When the print head unit 1 is reversed, no-money is-fixed length Also, ^ 胄 时 达 's longer than usual' or the next-line print command is not sent, when the MPU10 causes the linear motor 2 to generate a driving force against the reverse stack pressure of the bombs 5A, 5B 'makes the print head unit 1 Chase to a position where the reverse pushing pressure is not enough (hereinafter referred to as the "backoff stop position"), making it a temporary stop. Then, 'respond to the end of the paper feed operation or receive a print instruction, and then start the print head unit. 1 to move back and forth, so that MPUH) can also quickly start the back and forth movement when the delivery is longer or the printing order is delayed. ROM11 contains the control programs or parameters that MPU10 should execute. RAMU is used as the operating area of MPU10. The interface 13 has a function of an input / output contact to Μρυι〇. In addition to the linear encoder 6 outputting a detection signal 81 corresponding to the displacement of the print head unit 1, the linear encoder 6 also outputs reverse position detection signals S2 and S3 indicating that the print head unit 1 has reached the reversal interval. A constant speed drive current D1 is supplied to the constant speed coil C1 of the linear motor 2, and a reverse drive current D2 is supplied to the reverse coil C2. The thermal resistor 7 can detect the ambient temperature inside the device and transmit it to the MPU10. The detailed operation of a microcomputer with such a structure will be described later, but when the print head unit 1 is reversed, retracted, stopped, or started in response to a relatively long paper feed or printing instruction, the timing or Control (please read the precautions on the back first, then this page)-Binding too: i-line-This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 14 517017 A7 Employees of Intellectual Property Bureau, Ministry of Economic Affairs Printed by the Consumer Cooperative ————— ___B7____ V. Description of the Invention (12) The linear motor 2 is controlled with a moderate amount change, due to the unevenness of the dynamic characteristics of the springs 5A and 5B, or the linear motor 2 that depends on temperature changes When the driving force changes, the 'print head unit 1 can still operate with high accuracy. Figure 5 is an explanatory diagram for the reverse, retreat, stop, and start control of this embodiment. As shown in Figure 8 of this figure, the printing head unit 1 moves from the printing interval to After reversing the section and changing the direction, it moves from the reversing section to the reversing section of the other side through the printing section, and moves back and forth to perform the printing operation by repeating this action. At this time, during the reversing pushing force of the corresponding springs 5A and 5B in the reversing period, the paper feeding operation is performed during the reversing of the print head unit 1 in the paper feeding period when the acceleration / deceleration state is reached. On the other hand, as shown by the mark B in FIG. 5, when the head unit 1 in the back and forth movement is reversed, retreated, stopped, and started, the Mpu 10 causes the linear motor 2 to reverse the springs 5A and 5B. The driving force of the stack pressure applies a braking force (E) to the print head unit 1 during reversing, so that the print head unit retreats to a retreat stop position that is lower than the reverse pushing pressure, and temporarily retreats and stops. In 疋, the print head unit 1 is in the state (F) that has been stopped in the retraction stop position until the paper feed operation is completed or the next line of print instructions is received. Then, when the paper feed operation is ended or a print instruction is received from the next line, the print head unit moves back and forth (G) again. At this time, the linear motor 2 controls the driving current to be supplied to the coils Cl and C2 so as to generate a corresponding driving force. 'The print head unit 1 is returned from the retracted stop position to the reversed pushing force of the springs 5A and 5B. Large paper feed interval. According to the above-mentioned series of control procedures, the print head unit i can be adapted to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 15 (please read the precautions on the back before 3 ^ this page)- ''-· Line. 517017 A7 V. Description of the invention (13 Smart employees consume stable reverse, retreat, stop, start, and perform normal actions. If there are uneven movement characteristics in the springs 5A and 5B, or due to continuous operation The heat causes the temperature inside the device to rise, and when the driving force of the linear motor 2 is greatly changed, an unhealthy spring phenomenon as shown in the above FIG. 8 occurs. Therefore, this embodiment is to continuously reverse, retreat, and stop. : When moving the print head unit 1, after retreating the print head unit 丨 back and forth, the completion of the paper feeding action or the printing instruction is received, and when it should be restarted, the linear motor 2 is switched on depending on the situation. The timing of the drive current to start it, or the timing to end it, controls the timing of returning the print head unit ι from the retreat stop position to the paper feed interval in a variable manner. At the same time as the variable control timing, or as an independent control, depending on the condition change / variable control, the value of the drive current that should be supplied to the linear motor 2 when returning the print head unit from the retreat stop position to the paper feed room. When temporarily reversing the printing head sheet μ during the back-and-forth movement, the effect ratio of the driving current that should be supplied to the linear motor 2 or the value of the driving current can be changed according to the situation, thereby leaving the printing head unit at a fixed back-off The movement of the position is stable. And 'If the print head unit 1 still cannot return to the paper feeding section by the above control, it cannot make the subsequent movement of the back and forth movement & the normal speed curve movement.' At this time, It is not judged to be an error based on only one time, but to perform a certain number of times. 'When the print head unit can be sent back completely within a certain number of times = interval,' it is not regarded as an operation error but as a normal operation. You can avoid as much as possible with the reversal, retreat, stop, and start of the print head unit, and then you can set the line along the paper rule_ Tsukazumi (CNS) A4 regulations

I 517017 A7

Mistakes caused by the printing of employees of the Intellectual Property Bureau. Secondly, the control operations at the time of making the print head unit, retreating, stopping, and starting will be explained mainly with reference to the flowchart. Fig. 6 is a flowchart showing an example of an insertion control process when the print head unit 1 is reversed, retracted, stopped, and moved. In addition, this insertion control process is executed when the paper feeding amount is longer than flat, or when the printing instruction of the next line is backward compared to the back and forth movement and cannot start the printing operation, which makes the print head sheet M go back and forth. The processing of the moving state is temporarily suspended. At the same time, the position of the print head unit i in the interval is moved back and forth: it is detected successively by the linear encoder 6. First, when MPIII0 receives the insert instruction, it performs reverse control (S1) to move the print head unit 1 in the back-and-forth movement from the printing section to the paper feeding section, and then changes the direction from the paper feeding section to the printing section. This inversion control is performed by appropriately controlling the driving current supplied to the linear motor 2 'and corresponds to the front half of the E portion and the front half of the B portion shown in FIG. Moreover, when the reverse control is performed, the paper feeding operation is also controlled at the same time. With this, the print head unit 丨 starts moving from the paper feed section to the print section, and the MPU 10 starts the back-off control (S2). This avoidance control is in the corresponding part E of the music chart 5, so that the linear motor 2 generates a driving force against the reverse pushing force of the spring 5 and the reverse, and applies a braking force to the printing head unit! If there is sufficient retreat control, the print head unit 丨 will be momentarily suspended at the retreat stop position shown by a dotted line in FIG. 5. This corresponds to part F of Figure 5. From the beginning of this back-off control, MPU10 has begun monitoring as the first time (please read the precautions on the back before this page). Installation-line · This paper size applies the Zhongguanjia Standard (CNS) A4 specification (21G x 297 Manager) 517017 A7

517017

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

One bundle of this interruption control process' returns to the process related to the original back and forth movement. Therefore, the printing head unit 1 moves at a constant speed in the printing section by the driving force of the linear motor 2 and starts the printing operation again at the same time. On the other hand, at S6, when the print head unit 1 cannot be separated from the printing interval by the restart control (S6: N0), the MPU1G returns to S4 to restart the control until the number of retry attempts reaches a fixed number. This embodiment is For example, 4 times (S7 ·· NO) 〇, at ^, the number of retries reaches a certain number of times (S7: YES), MPU10 judges that it is an action error that cannot return to the normal action (s8), and ends the process after making relevant notifications. Insert control processing. At S3, when the paper feed operation is not completed after the start of the back-off control, or when a backward printing instruction is not received (S3 ··· No), Mpui (H £) performs stop control. This stop control is the stop of the finger print head unit described above. Control of the status at the retreat stop position. After that, MPU10 is the same as S3, when it detects that the paper feed operation has been completed or has received a backward printing instruction (sl0: YES), and then executes the restart control (S11) Then, proceed to S6. When the paper feed action is not completed in S 10 ', or if the backward printing instruction is not received (S3: NO), MPU10 will return to the stop control of S9. Fig. 9 shows that it is suitable for Fig. 8 The description of the operation of part c, as shown in part C of FIG. 9, when the position of R2 is detected, a right edge signal is generated from the linear encoder 6. Then, the MPU10 enters the control of the retraction action (E) and drives The linear motor 2 is equivalent to the portion of the E section, so as to apply a force in the opposite direction to the print head unit 1. It is most ideal to take it at the retraction stop position of R3.

·-: Line- (Please read the precautions on the back before miling this page) This paper size applies the Chinese National Standard (CNS) A4 (210 X 297 mm) -19-Description of the invention (17) The balance must be printed at the same time The head unit 1 is stopped, but due to the above reasons, the subhead unit 1 that has the P-captured head will be bounced to the position of R4 by the yellow 5A and 5B. The distance of the door also varies depending on the mechanical conditions or the environment such as temperature. Secondly, during the stop period (F) before the start of printing, the constant velocity coil C1 is driven to move the printing head single iU toward the abutting spring 5A and move it upright, but because the thrust of the constant velocity coil C1 is small, it cannot be immediately Arrive at position 3. If it is restarted when it does not reach the position of R3, the print head unit i will move with a motion like curve Cr, leaving the print area. The distance between R2 and ruler 2 will be shorter, and printing will occur in section j. Degradation of quality. Therefore, according to the position of the print head unit 丨 obtained from the linear encoder 6, the MPU 10 extends the end time of the restart operation (G), so that the timing operation is as shown in FIG. 9 (G,). Alternatively, the timing (G) of the restart is maintained, and the driving current supplied to the linear motor 2 is increased. Or, implement measures from both parties. Control the linear motor 2 in this way, and extend the disengagement distance (H) to return the print head unit 1 to the position of R1. In this way, the movement trajectory of the print head unit 1 will become two dotted lines Cr. The speed of the print head unit 丨 in the interval R2-R2 changes. Therefore, according to the printing device that performs reverse, retreat, stop, and start control according to the procedure shown in FIG. 6, even if the dynamic characteristics of the springs 5A and 5β are not interspersed or the temperature rises, the linear motor 2 When the driving force is reduced, the linear motor 2 can still be properly controlled according to the current situation, so that the printing operation accompanying the back and forth movement of the printing member 1 can be restarted quickly, without reducing the printing processing capacity, and can be reversed. A series of actions such as, retreat, stop, and start are stable. 517017

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

Next, a brief description will be given with reference to flowcharts of other embodiments. Fig. 7 is a flowchart showing another example of the insertion control process when the print head unit 1 is reversed, retracted, stopped, and started. The series of control procedures shown in FIG. 7 are completely the same as those in FIG. 6 except for S21 in FIG. 7, so the same step numbers are marked. The only difference is that step S21 is set, so this point will be explained as follows. In S3, if the paper feed operation is completely completed or the backward printing instruction is received (S3: YES) at the beginning of the retraction control, then the springs 5A and 5B may be uneven, or they may move back and forth. The operation raises the temperature inside the device, and a situation in which a sufficient driving force cannot be obtained from the linear motor 2 occurs. Therefore, M_ is corresponding to the position of the printing head single μ detected by the linear encoder 6 one by one, or the / degree detected by the thermal resistor 7 to change the driving current supplied to the linear motor 2 when the stop control is started. Effect ratio for control (S21). The effect ratio of the driving current is the ratio of the number of driving pulses per unit time, for example, it can be changed from 鄕 to 70%. Furthermore, at this time, the current value of the driving current supplied to the linear motor 2 can also be changed. Thereby, the linear motor 2 can be made to generate a driving force that causes the print head order to gradually approach the fixed retreat stop position * stop. Then, MPU10 proceeds to S4. Fig. 10 is an explanatory diagram illustrating the operation suitable for Part D of Fig. 8. As shown in part D of Fig. 10, after the return from the home country to the stop, if the print head unit i is greatly ejected from the target and stopped, At the position (R3), if the unit is restarted in this state, the print head unit will not be moved out of the print interval R2-R2 and an operation error will occur. -> I I I—— — — — — — — I— I I. (Please read the note 3 on the back before going to this page) »-; line · -n ϋ

Paper Ruler Money® ® Home Standard (CNS) A4 Specification (½ χ 297 Public Love) 517017 A7

517017 A7 B7 V. Description of the invention (20 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs as described above. According to the present invention, for example, when the performance of the print head unit is reversed, retracted, stopped, or started, the spring characteristics In the case where the driving force of the linear motor changes due to unevenness or temperature changes, the linear motor can still be properly controlled according to the current situation, so that the printing operation accompanying the back and forth movement of the printing head unit can be restarted quickly. The operation can be stabilized without reducing the printing processing capacity. Brief Description of the Drawings The first diagram is a schematic diagram showing a schematic structure of one embodiment of the printing assembly of the present invention. The second diagram is a linear motor viewed from the side. Side view of the state. Fig. 3 is a top view of a state of a mover of a linear motor viewed from above. Fig. 4 is a block diagram of a microcomputer provided in a printing device of this embodiment. Fig. 5 is an explanation This figure is used to explain the reversal and retreat control in this embodiment. Fig. 6 shows the insertion control process when the print head unit is reversed and retreated. An example is a flowchart. Fig. 7 is a flowchart showing another example of the insertion control process when the print head unit is reversed and retreated. Fig. 8 is a diagram illustrating the conventional reverse, retreat, and stop. Fig. 9 is an explanatory diagram illustrating operations suitable for Part C of Fig. 8. Fig. 10 is an explanatory diagram illustrating operations suitable for Part D of Fig. 8. Lines for stopping, starting and stopping, starting and stopping, and starting and controlling. This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) 1 ·· Print head unit 2 ··· Linear motors 2A, 2B ... Fixed scale 2C ... Motor 3. .Belt and pulley mechanism 3A, 3B, 3C ... Connecting rod 4 ... Fixed shafts 5A, 5B ... Spring 517017 A7 ^ _B7_ V. Description of the invention (21) Component number comparison with 5C, 5D ... Stops 6 ... Linear encoders 7 ... Thermal resistors

10 .. .MPU

11 .. .ROM 12 .. .RAM 13… Interface Cl, C2 ... Coils (Please read the notes on the back before this page) Order: Line-Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -1— ϋ ϋ 4—-This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -24-

Claims (1)

Printed by ABCD Employees' Cooperatives, Ministry of Economics / I Bureau 517017 ι ·-A printing device 'equipped with a linear driving member that moves the printing member back and forth in a certain direction; when the printing member is moved back and forth due to the driving force of the linear driving member, the printing is performed near both ends of the back and forth movement section. The reverse pushing member that applies a reverse pushing force to the member is characterized in that it includes a driving force that causes the linear driving member to oppose the reverse pushing pressure of the reverse pushing member, and temporarily retreats the printing member to The position where the reverse pushing pressure is not good, and when the printing member is started immediately after retreating, it can be controlled in a variable manner. Returning the printing member from the retracted position will add the reverse pushing of the reverse pushing member. Control component for timing of pressure intervals. 2 · —A printing device provided with a linear driving member that moves the printing member back and forth in a certain direction; when the printing member moves back and forth due to the driving force of the linear driving member, The reverse pushing member that applies a reverse pushing force to the printing member is characterized in that it includes a driving force that causes the linear driving member to oppose the reverse pushing force of the reverse pushing member, and temporarily retreats the printing member to The position where the reverse pushing pressure is not good, and when the printing member is started immediately after retreating, it can be controlled in a variable manner. Returning the printing member from the retracted position will add the reverse pushing of the reverse pushing member. In the pressure range, the control means for driving current of the linear drive means should be supplied. 3. —A kind of printing device, which is provided with ... making the printing member go back and forth in a certain direction. This paper closes the standard (CNS) A4 "(2ι〇χ297) 25 A linear driving member that moves within the scope of the patent application; when the printing member is moved back and forth due to the driving force of the linear driving member, a reverse pressing member that applies a reverse pressing force to the printing member near both ends of the back and forth movement section ' It is characterized in that the driving force of the linear driving member against the reverse pushing force of the reverse pushing member is generated by P δ. The printing member is temporarily retreated to a position where the reverse pushing force is lower than that, and then restarted. When the printing member is in the stopped state, the control member that can supply the duty ratio of the driving current of the linear driving member when the printing member is retracted to the avoidance stop position can be controlled in a variable manner. 4 ·-A printing device i, equipped with a linear driving member that moves the printing member back and forth in a certain direction; when the printing member moves back and forth due to the driving force of the linear driving member, The printing member is a reverse pushing member that applies reverse pushing force, characterized in that, I 3 has a driving force that the linear driving member generates a reverse pushing frictional force against the reverse " reverse member, and the above The printing member temporarily f avoids the position where the above-mentioned reverse pushing force is inadequate, and then, when the printing member is stopped in a sad state, it can be controlled in a variable manner. When the printing member is retracted to the retreat stop position, it should be provided A linear current drive component that controls the drive current.如 · If applied = the printing device of item i of the patent scope, when the pushing amount of the printing sub-component is less than a certain amount, the control component repeatedly executes the restart of the printing component. 517017 Scope of patent application 6. If the printing device of the scope of patent application No. 5 is applied, the control component is judged to be an operation error when it fails to restart the printing sub-component a certain number of times. 7 ·-A printing device, including a linear driving member that causes the printing member to move back and forth in a fixed direction; a reciprocating pressing force that applies a reverse pressing force to the printing member near the two ends in the back and forth movement interval of the printing member Component; and a detecting component for detecting the position of the printing member, and performing the reversing control of reversing the moving direction of the printing member by the reversing pushing pressure near one end of the back and forth movement section; After the reversal, the printing member acts against the braking force of the reverse pushing force, thereby causing the printing member to temporarily stop the retraction control near the target stop position; after the retraction control, the printing member is driven toward The restart control for the above-mentioned one-end direction is characterized in that: 8. The ordering line includes, in accordance with the existence position of the printing member in the back-and-forth movement section detected by the detection member, controlling and supplying the linear drive in a variable manner. The current of the component controls the component's current. A printing device, wherein the current control means includes a ratio control means for controlling the effect ratio of the current supplied to the linear drive means in a variable manner during the back-off control. 9. The printing device according to item 7 of the patent application scope, wherein the current control means includes a current value control means that controls the current value supplied to the linear drive means in a variable manner during the back-off control. 10. For the printing device in the scope of patent application item 7, the paper size of the above current control component is applicable to the Chinese National Standard (CNS) A4 specification (210 × 297 mm) 27 517017 A8 B8 C8 D8 In a variable manner, the ratio of the effect ratio control member that controls the lightning + a ^^ current supplied to the linear drive member is controlled in a variable manner. 11 · If item 7 of the scope of the patent application is applied. • The Principia device, the current control means includes a current value control means that controls the current value supplied to the linear drive means in a variable manner during the restart control described above. 12 · If the scope of the patent application is the 7th Xihuahua Zhuang @ ^ Yinzhi Yinzi device, the current control member contains, in the above-mentioned restart control control day, the current supplied by the sister beam to the linear drive member in a variable manner. Timing timing control means V. 13. The printing device according to item 7 of the scope of patent application, further comprising, after the back-off control, stopping control to maintain the printing means near the target stop position until receiving the printing start signal. member. 14. If the printing device according to item 7 of the patent application scope further includes a temperature measurement device, the current control means controls the current supplied to the linear drive means in a variable manner based on the ambient temperature measured by the temperature measurement means. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. The paper size is applicable to the Chinese National Standard (CNS) A4 (210X297 mm) 28