JP4463015B2 - Printer and platen driving method in the printer - Google Patents

Description

  The present invention relates to a printer such as an inkjet printer used for printing on a form such as a passbook and a platen driving method in the printer.

For example, in a form processing device that processes a form such as a passbook that is installed in an automatic transaction device that performs deposit, withdrawal, transfer, bankbook entry, balance inquiry, etc., a dedicated passbook printer is used to print on the passbook etc. (For example, refer to Patent Document 1).
As shown in FIG. 9, the passbook printer 101 includes a printing unit 102 that prints on a passbook and the like, and a conveyance unit 103 that sends the passbook and the like to a printing position.
The printing unit 102 supports the bankbook and the like from the back side during printing, and the bankbook between the printhead 104 and the carrier 105 mounted with the printhead 104 for printing on the bankbook and the like based on the print information. A long platen 106 arranged so that a gap between the print head 104 and the print head 104 is maintained at a predetermined value, and a carrier 105 on which the print head 104 is mounted along the length direction of the platen 106. A head moving unit 107 for moving the platen and a platen support unit 108 for supporting the platen 106 are provided.
A gap roller 109 that presses the platen 106 is attached to the print head 104 to maintain a print gap.

The head moving unit 107 includes carrier shafts 110 and 111 for guiding the carrier 105, a timing belt 112 with the carrier 105 fixed to a predetermined portion, and a spacing for driving the timing belt 112 to reciprocate the carrier 105. And a motor 113.
The platen support portion 108 is disposed on the lower surface side of both end portions of the platen 106, and the platen guide 114 that supports both end portions of the platen 106 and the platen 114 are always attached to the print head 104 side (upward in FIG. 9). And a platen spring 115 to be energized.
The platen 106 is guided by a platen guide 114 and can be displaced in the vertical direction, and is always urged upward by a platen spring 115.
The platen 106 is made of a long member having a rectangular cross section, and has a support surface 106 a that supports a passbook and the like and is pressed downward by a gap roller 109.

  As shown in FIG. 9, the conveying unit 103 includes a feed roller 116 and a pinch roller 117 that sandwich and pass a bankbook, a pinch roller frame 118 that holds the pinch roller 117, and a torsion spring that presses the pinch roller 117 against the feed roller 116. A shaft on which the feed roller 116 is mounted by connecting a driven spring 119 made up of the pin, a pinch roller spring 120 made up of a compression spring that presses the pinch roller frame 118 against the feed roller 116, and a feed motor shaft that drives the feed roller 116. 121, a shaft 122 to which a driven spring 119 is attached, an upper paper guide 123 and a lower paper guide 124 for maintaining the posture of a passbook, etc., and a passbook etc. are set comprising a light emitting element 125a and a light receiving element 125b. When The abutting detection sensor 125 for sensing a hand butt, and a stopper 126 for arresting movement to between the print head 104 of the passbook or the like and the support surface 106a.

Here, as shown in FIG. 10, the carrier 105 is reciprocated by a carrier driving actuator 127 including a spacing motor 113, and the platen 106 is a platen driving actuator 128 using a motor or a solenoid. Thus, the platen spring 115 is driven in a direction away from the print head 104 as necessary against the urging force of the platen spring 115.
Further, the pinch roller 117 is fed with a feed roller as required by rotating the pinch roller frame 118 against the urging force of the pinch roller spring 120 by a pinch roller driving actuator 129 using a motor or solenoid. It is driven and displaced in a direction away from 116.

Further, the stopper 126 is lowered when the passbook or the like is set by the stopper driving actuator 130, and is vertically moved so as to block the conveyance path formed between the upper paper guide 123 and the lower paper guide 124. Driven along.
The feed roller 116 is rotationally driven by a feed roller driving actuator 130 including a feed motor, and the pinch roller 117 is pressed against the feed roller 116 and is driven to rotate along with the rotation of the feed roller 116.
The carrier driving actuator 127, the platen driving actuator 128, the pinch roller driving actuator 129, the stopper driving actuator 130 and the feed roller driving actuator 130 are controlled by the controller 132.
Here, the pinch roller 117 and the stopper 126 are also driven using the same actuator.
In addition, when using a cylindrical platen that winds and feeds paper in a single-cut printer, a technique has been proposed in which the drive of the platen and the drive of the carrier are switched using the same motor (for example, patents) Reference 2 and Patent Reference 3).
JP-A-4-18382 Japanese Patent Laid-Open No. 5-50698 Japanese Patent Laid-Open No. 5-92637

The first problem to be solved is that in the above-described prior art, a large number of actuators are required, so that the controller 132 needs to perform complicated control, and the mechanism for transmitting power becomes complicated, and the parts Since the score is also increased, the reliability of the apparatus is deteriorated.
The second problem is that a large number of actuators are arranged and the mechanism for transmitting power is complicated. Therefore, it is necessary to secure an arrangement space for the components, which reduces the degree of freedom in designing the apparatus and reduces the size. It is difficult to make it. In particular, a dedicated space is required to arrange the stopper 126.
The third problem is that a large number of actuators are required, the mechanism for transmitting power is complicated, and the number of parts increases, which increases the cost.

The first object of the present invention is to provide a printer capable of improving reliability and a platen driving method in the printer.
Another object of the present invention is to provide a printer capable of improving design freedom and contributing to downsizing and a platen driving method in the printer.
A third object is to provide a printer capable of reducing the cost and a platen driving method in the printer.

In order to solve the above-mentioned problem, the invention according to claim 1 is a recording head for recording on a recording medium based on print information, and is arranged opposite to the recording head and supports the recording medium from the back side during recording. A first rotating body having a flat top platen, a head moving means for moving the recording head along the platen, and a pair of first and second rotating bodies whose rotation axes are parallel to each other. And a medium conveying means for sandwiching the recording medium between the body and the second rotating body and feeding the recording medium to a recording position, and for urging the platen toward the recording head. Platen urging means, and platen pressing means that is displaced together with the recording head by the head moving means and presses the platen against the urging force by the platen urging means, Latin has a pressed surface which is a top surface that is pressed, a front perpendicular to said pressing surface, and a tip abutted stop surface of said recording medium by said platen pressing means, and said A first area, a second area, and a third area having different heights are formed on the pressed surface, and the platen pressing means is disposed on the first area by the head moving means. The platen is displaced so that the movement of the recording medium between the recording head and the third surface of the pressed surface is stopped by the stopping surface, and the platen pressing means is moved to the second portion. The recording medium can be inserted between the third area and the recording head by the rotation of the first rotating body and the second rotating body. The platen pressing means is the third When arranged on the area, the recording medium is supported by the platen, and the third area is pressed via the recording medium by the platen pressing means, so that the third area becomes the recording head. With respect to the recording medium, it is possible to record on the recording medium in a state where a predetermined separation is maintained.

  According to a second aspect of the present invention, there is provided the printer according to the first aspect, wherein the platen has an operating portion for separating the first rotating body and the second rotating body from each other, and the head When the platen pressing means is disposed on the first region by the moving means, the first rotating body and the second rotating body are separated from each other by the displacement of the operating portion. The rotating body or the second rotating body is displaced, and the upper recording medium can be inserted between the first rotating body and the second rotating body. When the platen is displaced so that the movement of the recording head and the pressed surface between the third region is restrained and the platen pressing means is disposed on the second region, The first rotating body and the second rotating body are The first rotating body or the second rotating body is displaced so as to press each other across the body, and the third region is rotated by the rotation of the first rotating body and the second rotating body. And the recording head can be inserted between the recording head and the recording head.

  According to a third aspect of the present invention, there is provided the printer according to the second aspect, wherein the first rotating body and the second rotating body are both a substantially cylindrical driving roller and a driven roller rotated by the driving roller. It is characterized by becoming.

  According to a fourth aspect of the invention, there is provided the printer according to the third aspect, wherein a roller support member for supporting the driven roller and the roller support member for supporting the driven roller are arranged around a predetermined rotation axis. And a roller urging unit that urges the driven roller in a direction in which the driven roller is pressed against the driving roller, and the operating unit is configured so that the platen pressing unit is disposed on the first region by the head moving unit. The roller support member is rotated around the rotation shaft in a direction to separate the driven roller from the driving roller against the urging force of the roller urging means.

  According to a fifth aspect of the invention, there is provided the printer according to the fourth aspect, wherein when the platen pressing means is disposed on the second region, the actuating portion is disengaged from the roller support member, and the roller The biasing means is characterized in that the first rotating body and the second rotating body are pressed against each other with the recording medium interposed therebetween.

  A sixth aspect of the present invention relates to the printer according to any one of the first to fifth aspects, wherein the heights of the first area, the second area, and the third area are set to the first area. The height of the third region is set to be higher than the height of the first region and lower than the height of the second region.

  A seventh aspect of the invention relates to the printer according to any one of the first to sixth aspects, wherein the first area and the second area are formed at an end of the pressed surface. It is characterized by being.

  The invention according to claim 8 relates to the printer according to any one of claims 1 to 7, wherein the platen pressing means is arranged on the first region by the head moving means. When the recording medium is set and the platen pressing means is disposed on the second area, a line feed is performed and the platen pressing means is disposed on the third area. Sometimes, recording on the recording medium is performed.

According to a ninth aspect of the present invention, there is provided a recording head for recording on a recording medium based on printing information, and a flat platen having a flat top surface that is disposed opposite to the recording head and supports the recording medium from the back side during recording. And a head moving means for moving the recording head along the platen, and a pair of first and second rotating bodies whose rotation axes are parallel to each other, the first rotating body and the second rotating body. A spring member that urges the platen in a direction that always approaches the recording head . The spring member includes a medium conveying unit that sandwiches the recording medium between the rotating body and a recording position. When, a top surface formed convex surface of the platen, when pressed by a gap roller attached to the recording head, it and a protruding area of separating said platen from said recording head Comprising a platen moving means comprises a platen moving means for moving the platen along a direction of separating from the recording head, the platen, the support surface is a top surface for supporting the opposed said recording medium to said recording head, A front surface orthogonal to the support surface, and a stop surface against which a leading end of the recording medium is abutted, and the platen moving means is configured to move the recording medium against the leading end of the recording head when the recording medium is set. The support surface is maintained at a first distance, the platen is displaced so that the movement of the recording medium between the recording head and the support surface is stopped by the stopping surface, and the leading end of the recording head at the time of line feed The recording surface is maintained between the support surface and the recording head by rotating the first rotating body and the second rotating body while maintaining the supporting surface at a second distance. The platen is displaced so that it can be inserted, and recording can be performed on the recording medium in a state where the support surface is kept at a third distance from the tip of the recording head during recording. The platen is displaced as described above.

  A tenth aspect of the present invention relates to the printer according to the ninth aspect, wherein the platen has an operating portion for separating the first rotating body and the second rotating body from each other, and the platen When the platen is displaced by the moving means so as to keep the support surface at the first distance from the tip of the recording head, the first rotating body and the second rotation are caused by the displacement of the operating portion. The first rotating body or the second rotating body is displaced so that the bodies are separated from each other, and the upper recording medium can be inserted between the first rotating body and the second rotating body. At the same time, movement of the recording medium between the recording head and the support surface is stopped by the stop surface, and the support surface is moved to a second distance from the tip of the recording head by the platen moving means. Keep the above platen When displaced, the first rotating body or the second rotating body is displaced so that the first rotating body and the second rotating body are pressed against each other with the recording medium interposed therebetween. The recording medium can be inserted between the support surface and the recording head by the rotation of the first rotating body and the second rotating body.

Further, an invention according to claim 11, relates to a printer according to claim 9, wherein the platen moving means, said third separation has a first larger than apart, and said second spaced apart The platen is displaced so as to be smaller than that.

According to a twelfth aspect of the invention, there is provided a recording head for driving a recording plate for recording on a recording medium based on print information, and for driving a flat upper platen that supports the recording medium from the back side during recording. According to a platen driving method, the platen includes a pressed surface that is an upper surface pressed by a platen pressing unit that is displaced together with the recording head, and a front surface that is orthogonal to the pressed surface, and a leading end of the recording medium. A stop surface to be abutted, and a first region, a second region, and a third region having different heights are formed on the pressed surface, and the platen The recording head is urged toward the recording head by the urging means, and is pressed against the urging force by the platen urging means by the platen pressing means. When the platen pressing means is disposed on the first area by the head moving means that moves along the line, the recording area of the recording medium and the third area of the pressed surface are blocked by the stop surface. When the platen is displaced so that the movement between the platen pressing means and the platen pressing means is disposed on the second region, the pair of first rotating bodies and the first rotating bodies whose rotation axes are parallel to each other The third area and the recording head are rotated by rotation of the first rotating body and the second rotating body of the medium conveying means for sandwiching the recording medium between the two rotating bodies and sending it to the recording position. When the recording medium is inserted between the platen pressing means and the platen pressing means is disposed on the third region, the recording medium is supported by the platen, and the recording medium is supported by the platen pressing means. When the third area is pressed through, the recording can be performed on the recording medium in a state in which the third area is maintained at a predetermined distance from the recording head. It is said.

  A thirteenth aspect of the present invention relates to the platen driving method in the printer according to the twelfth aspect of the present invention, and the platen has an operation portion for separating the first rotating body and the second rotating body from each other. When the platen pressing means is disposed on the first region by the head moving means, the first rotating body and the second rotating body are separated from each other by the displacement of the operating portion. The first rotating body or the second rotating body is displaced to allow the upper recording medium to be inserted between the first rotating body and the second rotating body. The platen is displaced so that the movement of the recording medium between the recording head and the pressed surface between the third region is restrained, and the platen pressing means is disposed on the second region. Then, the first round The first rotating body or the second rotating body is displaced so that the body and the second rotating body are pressed against each other with the recording medium interposed therebetween, and the first rotating body and the second rotating body are displaced. It is characterized in that the recording medium can be inserted between the third area and the recording head by the rotation of the rotating body.

  The invention according to claim 14 relates to the platen driving method in the printer according to claim 13, wherein the first rotating body and the second rotating body are both rotated by a substantially cylindrical driving roller and the driving roller. It is characterized by comprising a driven roller.

  According to a fifteenth aspect of the present invention, there is provided the platen driving method in the printer according to the fourteenth aspect, wherein a roller support member that supports the driven roller and a roller support member that supports the driven roller are rotated by a predetermined amount. Roller urging means for urging the driven roller in a direction to press the driven roller against the driving roller is disposed around the shaft, and the operating portion is moved by the head moving means so that the platen pressing means is placed on the first region. The roller support member is rotated around the rotation shaft in a direction to move the driven roller away from the drive roller against the urging force of the roller urging means. Yes.

  The invention according to claim 16 relates to the platen driving method in the printer according to claim 15, wherein the actuating portion is configured to remove the roller support member from the roller support member when the platen pressing means is disposed on the second region. The first rotator and the second rotator are pressed against each other across the recording medium by the roller urging means.

  A seventeenth aspect of the present invention relates to the platen driving method in the printer according to any one of the twelfth to sixteenth aspects, and the heights of the first area, the second area, and the third area. Is characterized in that the height of the third region is set to be higher than the height of the first region and lower than the height of the second region.

  The invention according to claim 18 relates to the platen driving method in the printer according to any one of claims 12 to 17, wherein the first region and the second region are end portions of the pressed surface. It is characterized by being formed.

  According to a nineteenth aspect of the present invention, there is provided the platen driving method in the printer according to any one of the twelfth to eighteenth aspects, wherein the platen pressing means is disposed on the first region by the head moving means. When the recording medium is set, and the platen pressing means is disposed on the second area, a line feed is performed, and the platen pressing means is on the third area. When arranged, printing on the recording medium is performed.

According to a twentieth aspect of the invention, there is provided a recording head for driving a recording plate for recording on a recording medium based on print information, and for driving a flat upper platen that supports the recording medium from the back side during recording. According to a platen driving method, the platen is opposed to the recording head, a support surface that is an upper surface that supports the recording medium, and a front surface that is orthogonal to the support surface, and a front end of the recording medium is abutted against the platen. A restraining surface, and when the recording medium is set, a spring member that constantly biases the platen in a direction approaching the recording head, and a convex surface formed on the upper surface of the platen, wherein when it is pressed by a gap roller attached to the recording head, the platen moving means composed of a convex area of separating said platen from said recording head, said recording head The support surface is maintained at a first distance with respect to the tip, and the platen is displaced so that movement of the recording medium between the recording head and the support surface is restrained by the restraining surface. The platen moving means keeps the support surface at a second distance from the tip of the recording head, and the recording medium is between a pair of first and second rotating bodies whose rotation axes are parallel to each other. The recording medium can be inserted between the support surface and the recording head by the rotation of the first rotating body and the second rotating body of the medium conveying means for sandwiching and feeding to the recording position. The platen is displaced as described above, and during recording, the platen moving means can record on the recording medium in a state where the support surface is kept at the third distance from the tip of the recording head. As above It is characterized in that to displace the Ten.

  According to a twenty-first aspect of the present invention, there is provided the platen driving method in the printer according to the twentieth aspect, wherein the platen has an operating portion for separating the first rotating body and the second rotating body from each other. Provided, and when the platen is displaced by the platen moving means so as to keep the support surface at a first distance from the tip of the recording head, the first rotating body and The first rotating body or the second rotating body is displaced so that the second rotating bodies are separated from each other, and an upper recording medium is placed between the first rotating body and the second rotating body. The platen is displaced so that the movement of the recording medium between the recording head and the support surface is prevented by the restraining surface, and the recording head is moved by the platen moving means. When the platen is displaced so as to keep the support surface at the second distance from the tip, the first rotating body and the second rotating body are pressed against each other with the recording medium interposed therebetween. The recording medium between the support surface and the recording head by the rotation of the first rotating body and the second rotating body while the first rotating body or the second rotating body is displaced. It is characterized in that it can be inserted.

  The invention according to claim 22 relates to the platen driving method in the printer according to claim 20 or 21, wherein the platen moving means has the third separation larger than the first separation, and The platen is displaced so as to be smaller than the second separation.

According to the configuration of the present invention, the first area, the second area, and the third area having different heights are driven by the platen pressing means that drives the recording head using the head moving means and is displaced together with the recording head. By pressing the formed pressed surface and moving the platen up and down, the head moving means combines the functions of the carrier driving actuator, the platen driving actuator, and the stopper driving actuator in the prior art. Therefore, the number of actuators can be reduced, the control of the actuators and the power transmission mechanism can be simplified, and the number of parts can be reduced, so that the reliability can be improved.
In addition, by providing an operating part on the platen so that the first rotating body and the second rotating body are separated from each other, it can also serve as a pinch roller driving actuator, further improving reliability. Can be made.

  Further, the pressed surface in which the first area, the second area, and the third area having different heights are formed by the platen pressing means that drives the recording head using the head moving means and is displaced together with the recording head. By moving the platen up and down by pressing the head, the head moving means has the functions of a carrier driving actuator, a platen driving actuator, a pinch roller driving actuator, and a stopper driving actuator. In addition, by providing a stop surface on the platen, there is no need to provide a dedicated stopper, so the number of actuators can be reduced, the power transmission mechanism can be simplified, and the number of parts can be reduced. This reduces the space required for layout, improves the degree of freedom in design, and contributes to miniaturization. Can.

  Further, the pressed surface in which the first area, the second area, and the third area having different heights are formed by the platen pressing means that drives the recording head using the head moving means and is displaced together with the recording head. By moving the platen up and down by pressing the head, the head moving means has the functions of a carrier driving actuator, a platen driving actuator, a pinch roller driving actuator, and a stopper driving actuator. The number of actuators can be reduced, the power transmission mechanism can be simplified, the number of parts can be reduced, and the cost can be reduced.

    The recording head is driven using the head moving means, and the pressed surface formed with the first area, the second area, and the third area having different heights is pressed by the platen pressing means that is displaced together with the recording head. Then, by moving the platen up and down, the head moving means can serve as the function of the carrier driving actuator, the function of the platen driving actuator, and the function of the stopper driving actuator in the prior art. The first objective of reducing the number of components, simplifying the control of the actuator and the power transmission mechanism, reducing the number of parts, and improving the reliability was realized.

  Further, the pressed surface in which the first area, the second area, and the third area having different heights are formed by the platen pressing means that drives the recording head using the head moving means and is displaced together with the recording head. By pressing the platen to move the platen up and down, the head moving means can serve both as a carrier driving actuator function, a platen driving actuator function, and a stopper driving actuator function. Since there is no need to provide a dedicated stopper, the number of actuators can be reduced, the power transmission mechanism can be simplified, the number of parts can be reduced, the arrangement space for components can be reduced, and the design can be reduced. The second purpose of improving the degree of freedom and contributing to downsizing was realized.

  Further, the pressed surface in which the first area, the second area, and the third area having different heights are formed by the platen pressing means that drives the recording head using the head moving means and is displaced together with the recording head. By moving the platen up and down by pressing, the head moving means can serve as the function of the carrier driving actuator, the function of the platen driving actuator, and the function of the stopper driving actuator, reducing the number of actuators Thus, the power transmission mechanism can be simplified, the number of parts can be reduced, and the third purpose of reducing the cost has been realized.

  FIG. 1 is a side view schematically showing a configuration of a passbook printer according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a configuration of an automatic transaction apparatus including a form processing apparatus equipped with the passbook printer. 3 is a diagram showing the configuration of the form processing apparatus, FIG. 4 is a front view showing the configuration of the passbook printer, FIG. 5 is a plan view showing the configuration of the passbook printer, and FIGS. FIG. 8 is an explanatory diagram for explaining the operation of the passbook printer, and FIG. 8 is a flowchart for explaining the operation of the passbook printer.

The passbook printer 1 of this example is composed of, for example, an ink jet printer, and is used for printing on paper sheets such as a passbook in the form processing apparatus 3 constituting the automatic transaction apparatus 2 as shown in FIGS. It is done.
The automatic transaction apparatus 2 has an automatic transaction function capable of deposit, withdrawal, transfer, bankbook entry, balance inquiry, and the like. The form processing apparatus for processing the form is stored in the housing 3, and FIG. As shown in this figure, the housing 3 has a transaction indicator 4, an operation indicator 5, a passbook insertion slot 6, a card insertion slot 7, a receipt release slot 8, a coin slot 9, and a banknote slot. 11, an clerk call button 12, and an ink cartridge loading door 13 are arranged and schematically configured.
As shown in FIG. 3, the form processing apparatus 3 includes a controller 15 that controls each part of the form processing apparatus 3 and a magnetic data processing unit 18 arranged along a form transport path 17 provided from the form insertion port 16. , An optical reading unit 19, a passbook printer 1 for printing, a page turning unit 22, a forgetting form collection unit 23, a passbook holding unit 24 disposed behind the form insertion port 16, and merging conveyance paths 25 and 26. , 27, and 28, and passbook loading sections 29, 31, 32, and 33 connected to the form conveyance path 17, respectively.

As shown in FIG. 1, the bankbook printer 1 includes a printing unit 41 that prints on paper sheets, and a conveyance unit 42 that sends the paper sheets to a printing position.
The printing unit 41 includes a carrier 45 on which a print head 44 for printing on a paper sheet such as a passbook based on print information, and supports the paper sheet from the back side during printing. A long platen 46 arranged so that a gap with the print head 44 is maintained at a predetermined value with a paper sheet sandwiched between the carrier 45 and the carrier 45 mounted with the print head 44 is attached to the platen 46. A head moving portion 47 that moves along the longitudinal direction and a platen support portion 48 that supports the platen 46 are provided.
A gap roller 49 that presses the platen 46 is attached to the print head 44 in order to maintain a print gap.

The head moving unit 47 includes carrier shafts 51 and 52 for guiding the carrier 45, a timing belt 53 with the carrier 45 fixed to a predetermined portion, and a spacing for driving the timing belt 52 to reciprocate the carrier 45. And a motor 54.
The platen support 48 is disposed on the lower surface side of both ends of the platen 46, and the platen guides 55 and 55 that support the platen 46 at both ends, and the platen 46 is always on the print head 44 side (upward in FIGS. 1 and 4). ) And platen springs 56, 56 that are biased toward the center.
The platen 46 is guided by the platen guides 55 and 55 and can be displaced in the vertical direction, and is always urged upward by the platen springs 56 and 56.

  The platen 46 is made of a long member having a rectangular cross section, and has an upper surface 58 that is pressed downward by the gap roller 49, and an end surface of the paper sheet when the paper sheet is set as a restraining surface. A front part 59 that functions, and an end part of the front part 59 for operating a pinch roller frame so that a pinch roller 62 and a feed roller 61, which will be described later, are separated when a sheet is set. A hook portion 50 is provided. That is, the platen 46 also has a part of the function of the transport unit 42.

As shown in FIG. 4, the platen 46 is formed with an inclined portion at one end so that the height thereof changes in three stages. That is, the upper surface portion 58 of the platen 46 has a height L1 from the lower surface, a set area 58a to which the gap roller 49 is pressed when a paper sheet is set, and a height from the lower surface L2. A line feed area 58b where the gap roller 49 is pressed at the time of line feed and a printing area 58c whose height from the lower surface is L3 and where the gap roller 49 is pressed at the time of printing are provided.
Here, L1, L2, and L3 are respectively set to predetermined values so as to satisfy (L2>L3> L1). Further, an intermediate area 58s between the set area 58a and the line feed area 58b and an intermediate area 58t between the line feed area 58b and the print area 58c are inclined portions whose height gradually changes.

  When the gap roller 49 presses the part of the set area 58a of the upper surface 58 of the platen 46 (paper sheet set position), compared to when the gap roller 49 presses the part of the print area 58c. , The hook portion 50 is raised, the pinch roller 62 is rotated around the shaft 66 in a direction away from the feed roller 61, and a sheet is inserted between the pinch roller 62 and the feed roller 61. The leading end portion of the inserted paper sheet is abutted against the front surface portion 59 of the platen 46, and the movement to the printing position directly below the print head 44 is stopped.

  When the gap roller 49 presses the part of the line feed area 58b (line feed position), the hook portion 61 descends compared to when the gap roller 49 presses the part of the print area 58c, and the pinch roller The pinch roller 62 is detached from the frame 63 and rotated by the urging force of the pinch roller spring 64 in a direction in which the pinch roller 62 is pressed against the feed roller 61 around the shaft 66, and a sheet is sandwiched between the pinch roller 62 and the feed roller 61. In this state, conveyance to the printing position is possible.

  When the gap roller 49 presses the portion of the print area 58c, the gap roller 49 moves while rolling on the print area 58c, so that the print gap between the print head 44 and the print area 58c of the platen 46 is obtained. Is kept at a constant value, and one line is printed on the paper sheet.

  As shown in FIGS. 1 and 5, the conveyance unit 42 includes, for example, three pairs of feed rollers 61 and a pinch roller 62 that sandwich and feed paper sheets, a pinch roller frame 63 that holds the pinch roller 62, and a pinch roller 62. A driven spring 64a made of a torsion spring that pushes the feed roller 61, a pinch roller spring 64b made of a compression spring that pushes the pinch roller frame 63 against the feed roller, and a shaft of a feed motor (not shown) that drives the feed roller 61 A shaft 65 to which the feed roller 61 is connected, a shaft 66 to which a driven spring 64a is attached, an upper paper guide 67 and a lower paper guide 68 for maintaining the posture of the paper sheet, and a light emitting element 69a. And a light receiving element 69b, but when a paper sheet is set The abutting detection sensor 69 for detecting a rising excessively preventing stopper 71 to prevent an excessive increase prevention of the pinch roller frame 63, and a excessive lowering prevention stopper 72 to prevent excessive descending prevention of the pinch roller frame 63.

The feed roller 61 is rotationally driven by a feed motor, and the pinch roller 62 is pressed against the feed roller 61 and is driven to rotate along with the rotation of the feed roller 61.
The pinch roller frame 63 has a horizontal plate portion 74 to which the pinch roller 62 and the driven spring 64 are attached, and one end of the pinch roller spring 64b to which the end portion is engaged with the hook portion 50 of the platen 46. And a bottom plate portion 75 that rises.
The shaft 62 a of the pinch roller 62 is supported by being inserted into the elongated hole 63 a of the pinch roller frame 63, and one end of the driven spring 64 a is fixed to the pinch roller frame 63 and the other end is the shaft 62 a of the pinch roller 62. It is touching so that it may be pressed from below.

Further, one end of the pinch roller spring 64b is fixed to a predetermined portion of the bottom plate portion 75 of the pinch roller frame 63, and the other end is fixed to an attachment frame 76 fixed to the casing.
The pinch roller frame 63 is constantly urged around the shaft 66 by the pinch roller spring 64b so as to press the pinch roller 62 against the feed roller 61, and the pinch roller frame 63 is pinched around the shaft 66 by the rise of the hook portion 50 of the platen 46. The roller 62 rotates in a direction away from the feed roller 61.

Next, the operation of the bankbook printer 1 of this example will be described with reference to FIGS.
When the power is turned on, the control unit (not shown) controls the spacing motor 54 to move the carrier 45, and the gap roller 49 is moved to the upper surface 58 of the platen 46 as shown in FIG. Is displaced to within the set region 58a (step SA11 (FIG. 8)). That is, the print head 44 is disposed at the paper sheet set position.
Here, the gap roller 49 presses the portion of the set region 58a of the upper surface portion 58 of the platen 46, and as shown in FIG. 7A, the hook portion 50 rises and resists the urging force by the pinch roller spring 64b. Then, the end of the bottom plate portion 75 of the pinch roller frame 63 is pushed up, and the pinch roller frame 63 is rotated around the shaft 66 in a direction in which the pinch roller 62 is separated from the feed roller 61.

As a result, the paper sheets can be inserted between the pinch roller 62 and the feed roller 61, and the leading end of the inserted paper sheets is abutted against the front surface 59 of the platen 46, and printing is performed. Movement to the printing position directly below the head 44 is stopped.
In this state, the paper sheet A is inserted and set between the upper paper guide 67 and the lower paper guide 68 (step SA12), and the leading end of the paper sheet A is abutted against the front part 59 of the platen 46. Then, when the paper sheet A shields light between the light emitting element 69a and the light receiving element 69b, and the bump detection sensor 69 detects the bumping of the paper sheet (step SA13), the control unit i Printing of the first line (1 ≦ i ≦ n, n: natural number) is started (step SA14).

The control unit controls the spacing motor 54 to move the carrier 45 so that the gap roller 49 is displaced into the line feed region 58b of the upper surface portion 58 of the platen 46 as shown in FIG. (Step SA15). That is, the print head 44 is arranged at the line feed position.
Here, the gap roller 49 presses the part of the line feed region 58b, and the hook part 50 descends as shown in FIG. 7B, moves away from the bottom plate part 75 of the pinch roller frame 63, and around the shaft 66. The pinch roller 62 is rotated by the urging force of the pinch roller spring 64 in the direction in which the pinch roller 62 is pressed against the feed roller 61, and the paper sheet A is sandwiched between the pinch roller 62 and the feed roller 61 and clamped to be conveyed to the printing position. State.
Next, the control unit controls the feed motor to rotate the feed roller 61 in the forward direction and transport the paper sheet A to the printing position (step SA16).

Next, the control unit controls the spacing motor 54 to move the carrier 45, and the gap roller 49 rolls within the printing region 58 c of the upper surface 58 of the platen 46 as shown in FIG. While moving, the print head 44 is controlled to print one line on the paper sheet A (step SA17).
Here, as shown in FIGS. 6C and 7C, the gap roller 49 presses the portion of the print area 58c, and the gap roller 49 moves while rolling on the print area 58c. The print gap between the head 44 and the print area 58c of the platen 46 is maintained at a constant value, and one line is printed on the paper sheet.

  Next, in step SA18, the control unit determines whether or not the number of printed lines has reached the set n lines. If the number has not reached n lines, the control unit further increases the value of i by one line. (Step SA19), the process returns to step SA15. When the number of lines has reached n, the process proceeds to step SA20, where printing is terminated and reverse rotation of the feed motor is started (step SA21). In step SA22, it is determined whether or not the discharge has been completed. If the discharge is completed, the process proceeds to step SA23, the feed motor is stopped, the spacing motor 54 is controlled, the carrier 45 is moved, and the gap roller 49 is moved to the platen 46 as shown in FIG. The upper surface portion 58 is displaced into the set region 58a. That is, the print head 44 is disposed at the paper sheet set position.

  As described above, according to the configuration of this example, the upper surface portion 58 of the platen 46 in which the set region 58a, the line feed region 58b, and the print region 58c having different heights are formed by following the operation of the print head 44 as a gap. The roller 49 is pressed to cause the platen 46 to move up and down, to stop the paper sheet A and to clamp the paper sheet A, so that the function of the carrier driving actuator and the function of the platen driving actuator in the prior art , And a stopper driving actuator, and the platen 46 is provided with a hook 50 to displace the pinch roller 62 so that the feed roller 61 and the pinch roller 62 are separated from each other. Can also serve as a pinch roller drive actuator. Reduce, control and power transmission mechanism of the actuator can be simplified, and since the number of parts can be reduced, thereby improving the reliability.

In addition, by providing a stop surface on the platen, it is not necessary to provide a dedicated stopper, so the number of actuators can be reduced, the power transmission mechanism can be simplified, and the number of parts can be reduced. The space can be reduced, the degree of freedom in design can be improved, and the size can be reduced.
Moreover, since the number of actuators can be reduced, the power transmission mechanism can be simplified, and the number of parts can be reduced, the cost can be reduced.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. Are also included in the present invention.
For example, in the above-described embodiments, the case where the present invention is applied to a printer that prints on a form such as a passbook has been described. However, the application is not limited to this, and it may be used when printing on a single form.
Alternatively, the platen may be displaced using a dedicated actuator as a platen moving means without attaching the gap roller to the print head. In this case, the recording medium may be restrained by being displaced along the vertical direction of the platen by the actuator. The separation of the support surface supporting the paper sheet from the tip of the print head is such that the separation at the time of printing (third separation) is larger than the separation at the time of setting the paper sheets (first separation) and The predetermined values are set so as to be smaller than the separation (second separation).
Also in this case, the platen is provided with an operating portion for separating the feed roller and the pinch roller as the first rotating body and the second rotating body from each other, and the recording medium is clamped together with the vertical movement of the platen. You may make it.
In addition, a detection sensor may be attached to the platen and the paper sheet may be detected by reflected light from the paper sheet.

  In addition to inkjet printers, the present invention can be applied to non-impact printers such as thermal printers. Further, the present invention can be applied to an impact printer such as a dot impact printer.

It is a side view which shows typically the structure of the passbook printer which is one Example of this invention. It is a perspective view which shows the structure of the automatic transaction apparatus provided with the form processing apparatus carrying the same passbook printer. It is a figure which shows the structure of the form processing apparatus. It is a front view which shows the structure of the bankbook printer. It is a top view which shows the structure of the bankbook printer. It is explanatory drawing for demonstrating operation | movement of the bankbook printer. It is explanatory drawing for demonstrating operation | movement of the bankbook printer. It is a flowchart for demonstrating operation | movement of the bankbook printer. It is explanatory drawing for demonstrating the prior art. It is explanatory drawing for demonstrating the prior art.

Explanation of symbols

1 Passbook printer (printer)
2 Automatic transaction apparatus 3 Form processing apparatus 41 Printing section 42 Conveying section (medium conveying means)
44 Print head (recording head)
45 Carrier 46 Platen 47 Head moving part (head moving means)
48 Platen support 49 Gap roller (Platen pressing means)
50 Hook part (actuating part)
54 Spacing motor 56 Platen spring (platen biasing means)
58 Upper surface (pressed surface)
58a Set area (first area)
58b Line feed area (second area)
58c Print area (third area)
59 Front (restraint surface)
61 Feed roller (first rotating body or second rotating body, driving roller)
62 Pinch roller (second rotating body or first rotating body, driven roller)
64b Pinch roller spring (roller biasing means)
A Paper (Recording media)

Claims (22)

A recording head for recording on a recording medium based on print information, a flat top platen disposed opposite to the recording head and supporting the recording medium from the back side during recording, and the recording head along the platen The recording medium is disposed between the first rotating body and the second rotating body, the head moving means for moving, and a pair of first rotating body and second rotating body whose rotation axes are parallel to each other. A printer comprising medium conveying means for sandwiching and sending to a recording position,
Platen urging means for urging the platen toward the recording head, and a platen that is displaced together with the recording head by the head moving means and presses the platen against the urging force of the platen urging means. Pressing means,
The platen has a pressed surface that is an upper surface pressed by the platen pressing means, a front surface orthogonal to the pressed surface , and a stop surface against which the tip of the recording medium is abutted, and A first area, a second area, and a third area having different heights are formed on the pressed surface,
When the platen pressing means is disposed on the first area by the head moving means, the stop surface brings the recording medium between the recording head of the recording medium and the third area of the pressed surface. The platen is displaced so that movement is restrained,
When the platen pressing means is disposed on the second area, the recording between the third area and the recording head is performed by the rotation of the first rotating body and the second rotating body. Media can be inserted,
When the platen pressing means is disposed on the third area, the recording medium is supported by the platen, and the third area is pressed via the recording medium by the platen pressing means. A printer capable of recording on the recording medium in a state in which the third area is maintained at a predetermined distance from the recording head. The platen has an operating part for separating the first rotating body and the second rotating body from each other,
When the platen pressing means is disposed on the first region by the head moving means, the first rotating body and the second rotating body are separated from each other by the displacement of the operating portion. 1 rotator or the second rotator is displaced, and a pre-recording medium can be inserted between the first rotator and the second rotator, and the recording medium is provided by the stop surface. The platen is displaced so as to be restrained from moving between the recording head and the third area of the pressed surface;
When the platen pressing means is disposed on the second area, the first rotating body or the second rotating body or the first rotating body or the second rotating body are pressed against each other with the recording medium interposed therebetween. The second rotating body is displaced, and the recording medium can be inserted between the third area and the recording head by the rotation of the first rotating body and the second rotating body. The printer according to claim 1, wherein:   3. The printer according to claim 2, wherein each of the first rotating body and the second rotating body includes a substantially cylindrical driving roller and a driven roller rotated by the driving roller. A roller supporting member that supports the driven roller and a roller urging unit that urges the roller supporting member that supports the driven roller around a predetermined rotation axis in a direction in which the driven roller is pressed against the driving roller. And
When the platen pressing means is disposed on the first region by the head moving means, the actuating portion moves the roller support member around the rotation shaft to the urging force by the roller urging means. 4. The printer according to claim 3, wherein the driven roller is rotated in a direction away from the driving roller.   When the platen pressing means is disposed on the second region, the actuating part is detached from the roller support member, and the roller urging means causes the first rotating body and the second rotating body to move. 5. The printer according to claim 4, wherein the recording media are pressed against each other with the recording medium interposed therebetween.   The heights of the first region, the second region, and the third region are such that the height of the third region is higher than the height of the first region. The printer according to claim 1, wherein the printer is set to be lower than the height of the printer.   The printer according to claim 1, wherein the first area and the second area are formed at an end portion of the pressed surface.   When the platen pressing means is arranged on the first area by the head moving means, the recording medium is set, and the platen pressing means is arranged on the second area. 8. The recording on the recording medium is performed when a line feed is performed and the platen pressing means is disposed on the third region. Printer. A recording head for recording on a recording medium based on print information; a flat top platen disposed opposite to the recording head and supporting the recording medium from the back side during recording; and the recording head along the platen And a pair of first and second rotating bodies whose rotation axes are parallel to each other, and the recording medium is between the first rotating body and the second rotating body. A medium conveying means for sandwiching and feeding to a recording position,
A spring member that constantly urges the platen in a direction approaching the recording head, and a convex surface formed on the upper surface of the platen, and when pressed by a gap roller attached to the recording head, A platen moving means comprising a convex region for separating the platen from the recording head,
Platen moving means for moving the platen along the direction of separating from the recording head,
The platen has a support surface that is an upper surface that faces the recording head and supports the recording medium, and a front surface that is orthogonal to the support surface and against which a tip of the recording medium is abutted,
The platen moving means keeps the support surface at a first distance with respect to the tip of the recording head when setting the recording medium, and the restraining surface causes the recording head and the support surface of the recording medium to be separated from each other. Displace the platen so that the movement in between is stopped,
The support surface is kept at a second distance with respect to the leading end of the recording head at the time of a line feed, and the rotation between the first rotating body and the second rotating body moves the support surface to the recording head. Displace the platen so that the recording medium can be inserted,
A printer, wherein the platen is displaced so that recording can be performed on the recording medium in a state where the support surface is kept at a third distance from the tip of the recording head during recording. The platen has an operating part for separating the first rotating body and the second rotating body from each other,
When the platen is displaced by the platen moving means so as to keep the support surface at the first separation with respect to the tip of the recording head, the first rotating body and the second are moved by the displacement of the operating portion. The first rotating body or the second rotating body is displaced so that the rotating bodies are separated from each other, and a pre-recording medium can be inserted between the first rotating body and the second rotating body. And the movement of the recording medium between the recording head and the support surface is inhibited by the restriction surface,
When the platen is displaced by the platen moving means so as to keep the support surface at a second distance from the tip of the recording head, the first rotating body and the second rotating body are moved to the recording head. The first rotating body or the second rotating body is displaced so as to press each other across the medium, and the support surface and the second rotating body are rotated by the rotation of the first rotating body and the second rotating body. The printer according to claim 9, wherein the recording medium can be inserted between the recording head and the recording head. The platen moving means, said third separation has a first larger than spacing and claim 9 or 10, characterized in that for displacing the second of said platen to be smaller than spacing The printer described. A platen driving method for driving a flat top platen that is disposed opposite to a recording head for recording on a recording medium based on print information and supports the recording medium from the back side during recording,
The platen includes a pressed surface that is an upper surface pressed by a platen pressing means that is displaced together with the recording head, and a stop surface that is a front surface orthogonal to the pressed surface and against which the leading end of the recording medium is abutted. And a first area, a second area, and a third area having different heights are formed on the pressed surface, and the platen is recorded by the platen urging means. Urged toward the head, pressed against the urging force by the platen urging means by the platen pressing means,
When the platen pressing means is arranged on the first region by the head moving means for moving the recording head along the platen, the stop surface causes the recording head of the recording medium and the pressed surface to be pressed. The platen is displaced such that movement to and from the third region is inhibited;
When the platen pressing means is disposed on the second region, the recording medium is sandwiched between a pair of first and second rotating bodies whose rotation axes are parallel to each other and sent to a recording position. The rotation of the first rotating body and the second rotating body of the medium conveying means enables the recording medium to be inserted between the third area and the recording head,
When the platen pressing means is disposed on the third area, the recording medium is supported by the platen, and the third area is pressed via the recording medium by the platen pressing means. A platen driving method in a printer, wherein recording can be performed on the recording medium in a state in which the third region is maintained at a predetermined distance from the recording head. The platen is provided with an operating portion for separating the first rotating body and the second rotating body from each other,
When the platen pressing means is disposed on the first region by the head moving means, the first rotating body and the second rotating body are separated from each other by the displacement of the operating portion. 1 rotator or the second rotator is displaced, and a pre-recording medium can be inserted between the first rotator and the second rotator, and the recording medium is provided by the stop surface. The platen is displaced so that movement of the recording head and the pressed surface between the third region is restrained;
When the platen pressing means is disposed on the second area, the first rotating body or the second rotating body or the first rotating body or the second rotating body are pressed against each other with the recording medium interposed therebetween. The second rotating body is displaced, and the recording medium can be inserted between the third area and the recording head by the rotation of the first rotating body and the second rotating body. 13. A platen driving method in a printer according to claim 12, wherein the platen driving method is performed.   14. The platen driving method for a printer according to claim 13, wherein each of the first rotating body and the second rotating body includes a substantially cylindrical driving roller and a driven roller rotated by the driving roller. A roller supporting member that supports the driven roller and a roller urging unit that urges the roller supporting member that supports the driven roller around a predetermined rotation axis in a direction in which the driven roller is pressed against the driving roller. And are arranged,
When the platen pressing means is disposed on the first region by the head moving means, the actuating portion moves the roller support member around the rotation shaft to the urging force by the roller urging means. 15. The platen driving method in a printer according to claim 14, wherein the driven roller is rotated in a direction away from the driving roller.   When the platen pressing means is disposed on the second region, the actuating part is detached from the roller support member, and the roller urging means causes the first rotating body and the second rotating body to move. 16. A platen driving method in a printer according to claim 15, wherein the recording media are pressed against each other with the recording medium interposed therebetween.   The heights of the first region, the second region, and the third region are such that the height of the third region is higher than the height of the first region. The platen driving method in a printer according to claim 12, wherein the platen driving method is set so as to be lower than the height of the printer.   The platen driving method for a printer according to claim 12, wherein the first area and the second area are formed at an end portion of the pressed surface.   When the platen pressing means is arranged on the first area by the head moving means, the recording medium is set, and the platen pressing means is arranged on the second area. The printing on the recording medium is performed when a line feed is performed and the platen pressing means is disposed on the third region. A platen driving method in the printer according to claim 1. A platen driving method for driving a flat top platen that is disposed opposite to a recording head for recording on a recording medium based on print information and supports the recording medium from the back side during recording,
The platen is provided with a support surface that is an upper surface that faces the recording head and supports the recording medium, and a front surface that is orthogonal to the support surface and against which the tip of the recording medium is abutted. ,
When setting the recording medium, there is a spring member that constantly urges the platen in a direction to approach the recording head, and a convex surface formed on the upper surface of the platen, which is attached to the recording head. When pressed by a gap roller, a platen moving means comprising a convex region that separates the platen from the recording head keeps the support surface at a first distance from the tip of the recording head, and the stop surface Displacing the platen so that movement of the recording medium between the recording head and the support surface is restrained;
The platen moving means keeps the support surface at a second distance with respect to the tip of the recording head at the time of a line feed, and the rotation axis is between the pair of first and second rotating bodies parallel to each other. The recording medium is inserted between the support surface and the recording head by the rotation of the first rotating body and the second rotating body of the medium conveying means for sandwiching and feeding the recording medium to the recording position. Displacing the platen as possible,
The platen moving means displaces the platen so that recording can be performed on the recording medium in a state where the support surface is kept at a third distance from the tip of the recording head during recording. A platen driving method in a printer. The platen is provided with an operating portion for separating the first rotating body and the second rotating body from each other,
When the platen is displaced by the platen moving means so as to keep the support surface at the first separation with respect to the tip of the recording head, the first rotating body and the second are moved by the displacement of the operating portion. The first rotating body or the second rotating body is displaced so that the rotating bodies are separated from each other, and a pre-recording medium can be inserted between the first rotating body and the second rotating body. And the platen is displaced so that the movement of the recording medium between the recording head and the support surface is inhibited by the stopping surface,
When the platen is displaced by the platen moving means so as to keep the support surface at a second distance from the tip of the recording head, the first rotating body and the second rotating body are moved to the recording head. The first rotating body or the second rotating body is displaced so as to press each other across the medium, and the support surface and the second rotating body are rotated by the rotation of the first rotating body and the second rotating body. 21. The platen driving method in a printer according to claim 20, wherein the recording medium can be inserted between the recording head and the recording head. The platen moving means displaces the platen so that the third separation is larger than the first separation and smaller than the second separation. A platen driving method in the printer described above.

Images