KR20000069583A - Printer - Google Patents

Abstract

In order to reduce the number of parts of each mechanism of the printer device, simplify the whole structure, reduce the size, and reduce the cost, as an example, a paper feed mechanism for feeding the recording paper 108 for printing into the printer body is provided. Storage means for the recording paper 108 consisting of 104 and 106, a paper feed roller 110 which rotates in contact with the stored recording paper 108, separates and conveys only one sheet from the plurality of recording paper 108, and The paper feed roller 110 for contacting and rotating is provided with pressing means made of trays 104, 106, plate member 114, and the like which always presses the recording paper 108. 108 is conveyed and supplied into the printer body.

Description

Printer Device {PRINTER}

Background Art [0002] Conventionally, in an office or a general home, a printer apparatus which prints and records information such as drawings and characters on a surface of a recording sheet as a recording medium, for example, a thermal method, an electrophotographic method, and other various methods. Printer devices are widely used.

These printer apparatuses are usually reciprocally conveyed by a recording sheet supply unit for supplying recording sheets for print recording in the printer body, a recording sheet conveying unit for returning the recording sheets back and forth for printing the recording sheets supplied from the recording sheet supply unit, and a recording sheet conveying unit. Mechanisms such as a printing unit for printing the recording paper using ink on an ink sheet, for example, a recording paper ejection unit for releasing the recording paper that has been completed and printed while being reciprocated, and a driving unit for driving the respective units. It is composed of blocks.

In the above-described thermal type printer apparatus, first, a recording paper supply unit and a driving unit for driving the recording paper supply unit, and the recording paper for printing the information such as pictures and characters by driving the recording paper supply unit by the driving unit Will be described focusing on the recording paper supply mechanism for feeding paper from the recording paper supply unit into the printer body.

As the recording paper supply mechanism of this kind of printer apparatus, for example, the configuration shown in Fig. 39 is well employed.

In this recording paper supply mechanism, as shown in FIG. 39, the recording paper supply tray 602 is fixed to the exterior body 100, and at the bottom of the recording paper supply tray 602, the movable plate 606 is hinged (H7). It is structured and attached so that rotation is possible, as shown by arrow Y70 centering on (circle). Further, the movable plate 606 is moved by the pushing lever 604 as shown by arrow Y72 with the point C7 as the point by the force indicated by arrow Y71 of the pushing spring 608. Is held up until it comes in contact with the outer circumferential surface of the recording paper feed roller 110 positioned above it.

In the recording paper supply mechanism configured in this manner, when the recording paper 108 is mounted on the recording paper supply tray 602, the recording paper 108 is pressed against the recording paper supply roller 110 at a predetermined pressure.

In this state, when the recording sheet feeding roller 110 is rotated as indicated by the arrow Y73, the top recording sheet of the recording sheets 108 mounted on the recording sheet supply tray 602 is the printer as shown by the arrow Y74. It is conveyed into the main body and fed. In this way, when the recording paper 108 supplied inside the printer body reaches a low speed conveying mechanism separate from the recording paper supply roller 110, for example, a pinch roller capstan (not shown), a converter mechanism (not shown) is provided. The pushing lever 604 is displaced in the direction indicated by the arrow Y75 with the point C7 as a point, so that the contact of the recording sheet 108 to the recording sheet supply roller 110 is released. This makes it possible to carry out a precise recording sheet conveying operation for the subsequent printing operation in the printer main body.

Next, in the thermal printer system, it comprises a recording paper conveying unit and a driving unit for driving the recording paper conveying unit, and by driving the recording paper conveying unit by the driving unit, information such as drawings and characters on the recording paper supplied from the recording paper supplying unit. Will be described by focusing on the recording paper conveying mechanism for reciprocally conveying the supplied recording paper while clamping its tip.

As a recording paper conveying mechanism of this type of printer apparatus, for example, disclosed in Japanese Patent Laid-Open No. 7-76144 or the like, the configuration shown in Figs. 40 and 41 is well employed.

40 and 41 show the structure of the recording paper conveying mechanism of the printer apparatus employing the conventional clamping method. As shown in Figs. 40 and 41, the recording paper conveying mechanism has an operating position in which the thermal head 600B is pressed by the roller 604B by a subordinate force of the spring 602B by a driving mechanism not shown, It is selectively reciprocated between positions which are not pressed. In this operating position, print recording is performed by the heat from the thermal head 600B to the recording paper 636B sandwiched by the thermal head 600B and the roller 604B.

The recording paper 636B is normally stored in the recording paper supply cassette 606B and is conveyed inside the main body by the recording paper supply roller 608B. When the recording sheet 636B is loaded to a position where the clamp can be carried out by the pressing member 620B mounted on the carriage 610B described later (FIG. 40 shows the position), the recording sheet 636B is subsequently placed on the carriage 610B. By this, conveyance drive is performed.

The carriage 610B is supported by two guide shafts 612B and 614B freely for reciprocating displacement between the start position and the end position at which the print starts, and the two timing belts described later at both ends. It is fixed to 616B and 618B. In addition, the carriage 610B has a pressing member 620B as described above, and the pressing member 620B carries the reciprocating conveyance by clamping and holding the recording paper 636B.

The pressing member 620B can selectively select the position at which the recording paper 636B is pressed and held by the force of the pressing spring 622B, and the position at which the holding is released by the operation of the plunger 623B.

The two timing belts 616B and 618B are supported by the driving side pulleys 628B and 630B, respectively, and are driven by the power of the motor M11 via a gear (not shown), and thus the electrostatic direction ( In the case of recording on the recording paper 636B, the carriage 610B can be driven in the leftward direction of the drawing and in the reverse direction (the right direction of the same drawing when the recording paper 636B is returned).

As described above, each of the timing belts 616B and 618B is fixed to the carriage 610B by the fixing members 632B and 640B, respectively.

The recording paper 636B conveyed by the recording paper supply roller 608B is held by the carriage 610B, and yellow, blue, and red 3 are carried out three times between the start position and the end position. Heat is recorded in color and discharged outside the main body.

In addition, the recording paper 636B is made of a self-chromic material, and is light-fixed by a light source. This principle or the like is not directly related to the present invention, and further description thereof will be omitted.

Next, in the thermal printer, the printer comprises a printing unit and a driving unit for driving the printing unit, and by driving the printing unit by the driving unit, information such as a picture or a character is recorded on the recording paper supplied from the recording paper supply unit. The description will be given focusing on the printing mechanism which prints and records by the printing unit.

As a printing mechanism of this kind of printer apparatus, for example, a configuration as shown in Fig. 42 is well employed.

The schematic operation of the conventional printing apparatus configured as described above will be described below with reference to FIG.

When printing an image onto the recording paper, as shown in Fig. 42A, the recording paper supply roller 601 of the recording paper supply unit is rotated by a drive unit (not shown), and the recording paper is supplied by the recording paper supply roller 601. 605 is sent into the printer body, and the tip of the recording paper 605 is sandwiched and supported by the capstan roller 606 and the pinch roller 607 for transporting the recording paper, which are rotationally driven by the drive unit, and furthermore, the capstan roller 606. ), The recording paper 605 is conveyed to the start position at the time of printing the print.

In this state, as shown in Fig. 42B, the thermal head unit 608 is displaced by a link mechanism (not shown) driven by the drive unit, whereby the recording paper 636B is the thermal head unit 608. It is fitted between the thermal head 609 and the roller 610 installed in the).

As shown in Fig. 42 (b), the recording paper 605 further rotates between the capstan roller 606 and the pinch roller 607 and by pressing the recording paper feed roller 601 to the recording paper discharge roller 611. Between the idler roller 612 and substantially three round trips between the start position and the end position at the time of printing the image, during which the image is based on information input from the outside of the printer apparatus. The three colors of yellow, blue, and red ink on the ink sheet 613 are thermally transferred by heat generated selectively from a plurality of heating elements (not shown) arranged in the thermal head 609 according to the image. This prints the image on the surface in full color, and is then discharged onto the recording paper discharge tray 614 outside the printer main body by the recording paper discharge roller 611.

In addition, a printer apparatus having a printing mechanism constructed as disclosed in Japanese Patent Application Laid-Open No. 2-22835 and Japanese Patent Laid-Open No. Hei 1-97670 has also been widely used from the example.

Next, in the thermal type printer apparatus, the recording sheet is composed of a recording sheet discharging unit and a driving unit for driving the recording sheet discharging unit, and the recording sheet printed by the recording sheet conveying unit and the printing unit by driving the recording sheet discharging unit by the driving unit. The description will be given focusing on the recording paper discharging mechanism discharged to the outside of the main body of the printer apparatus.

As the recording paper discharging mechanism of this type of printer apparatus, for example, a configuration as shown in Fig. 42 is well employed.

The operation of the conventional recording paper discharging mechanism configured as described above will be described below with reference to FIG. 42, with reference to FIG.

First, in the recording sheet supplying operation (recording sheet supplying mode), as shown in Fig. 42 (a), the recording sheet supplying roller 601 of the recording sheet supplying unit is rotated by a driving unit (not shown), and the recording sheet supplying roller 601 is rotated. As a result, the recording paper 605 stored in the recording paper supply tray 602 and pushed up to the recording paper supply roller 601 by the lifting plate 604 by 603 is pressed by the recording paper supply roller 601. The tip of the recording paper 605 is transferred from the supply tray 602 to the printer main body, and the capstan roller 606 and the pinch roller 607 for conveying the recording paper rotated and driven by the drive unit are supported by the capstan roller. By rotation of 606, the recording sheet 605 is conveyed to the start position at the time of printing the print.

In this state, in the printing operation (printing mode), the thermal head unit 608 is displaced and moved by a link mechanism (not shown) driven by the drive unit, as shown in Fig. 42 (b). 605 is sandwiched between the thermal head 609 provided in the thermal head unit 608 and the roller 610.

As shown in Fig. 42 (b), the recording paper 605 further rotates between the capstan roller 606 and the pinch roller 607 and by pressing the recording paper feed roller 601 to the recording paper discharge roller 611. Is held between the idler roller 612 and travels substantially three round trips between the start position and the end position at the time of printing the image, during which the image is based on information input from the outside of the printer apparatus. Heat transfer of yellow, blue, and red three-color inks on the ink sheet 613 by heat generated selectively from a plurality of heating elements (not shown) arranged in the thermal head 609 according to the image. Are printed in full color on the surface.

In the recording sheet discharging operation (recording sheet discharging mode) for discharging the recording sheet 605 in which the print recording has been completed as described above, the recording sheet 605 is the recording sheet supply roller 601 as shown in FIG. Is held between the recording paper discharge rollers 611 and idler rollers 612 rotated by the pressing of < RTI ID = 0.0 >), < / RTI > between the capstan rollers 606 and the pinch rollers 607 which are rotationally driven by the drive unit, Is conveyed in the direction indicated by the arrow Y61 and is discharged onto the recording paper discharge tray 614 provided in the printer main body.

However, in the printer apparatus as described above, in the conventional recording paper supply mechanism, the recording paper 108 is moved to the recording paper supply roller so that the recording paper 108 on the recording paper supply tray 602 is brought into contact with the recording paper supply roller 110. A mechanism for pushing up in the (110) direction is required, and parts such as a movable plate 606, a pushing lever 604, and a thermal head unit 608 constituting the mechanism are required. There is a problem that the structure of the apparatus becomes complicated by providing such a mechanism constituted by the above.

Further, it is necessary to move the recording paper supply mechanism to push up the recording paper 108 on the recording paper supply tray 602 in the direction of the recording paper supply roller 110, and pushes the movable pushing lever 604 up ( There is a problem that a large power is required to displace the resistive force of 608.

In addition, the conventional recording paper conveying mechanism is firstly provided with two timing belts 616B and 618B, two guide shafts 612B and 614B, and a transmission gear (not shown). There are problems that the mechanism is complicated, such as the need for a large number of members, such as two timing pulleys 624B, 626B, 628B, and 630B.

Also, in the second, the difference in the pitches of the teeth of the timing belts 616B and 618B on both sides and the shape precision of the two drive-side timing pulleys 624B and 626B is, for example, on the recording sheet 636B. On the side

Furthermore, in the third case, a plunger 623B or the like is required to displace the pressing member 620B, and there is a problem that the carriage 610B is enlarged and complicated.

Furthermore, in general, the reciprocating conveyance of the recording paper 605 at the time of printing is mainly performed using the capstan roller 606 and the pinch roller 607 shown in FIG. 610, the capstan roller 606 and the pinch roller 607 furthermore, by the mutual size of the thermal head 609, the position of the recording paper 605 relative to the thermal head unit 608 is limited to the capstan roller 606 or Since the distance between the pinch roller 607 and the roller 610 becomes large, there exists a problem that the unnecessary space after recording on the recording paper 605 will increase.

This problem is solved by using a clamper method, but the above problem occurs in reverse.

In the conventional printing mechanism, in the link mechanism, the thermal head unit, the roller, or the like constituting the printing unit, component errors such as the dimension error of each of these components accumulate cumulatively, and the bonding accuracy is not sufficiently obtained. When printing in the state, the thermal head of the thermal head unit displaced and driven by the link mechanism is irrelevant to the arrangement of the rollers, and the accuracy at the time of positioning between the rollers and the thermal head is pressed so that the thermal head is pressed against the roller. There is a problem that is not sufficiently obtained.

Therefore, when printing the image on the recording paper by driving the link mechanism, the thermal head unit, the roller, or the like as described above, there is a problem that a print stain or the like occurs on the recording image and sufficient print quality is not obtained. .

In addition, in the configuration disclosed in Japanese Unexamined Patent Application Publication Nos. 2-22835 and 1-97670, the relative position at the time of contact between the thermal head and the roller is determined by the positioning member. When the cassette is desired to be detachable in the vertical direction with respect to the roller axis, there is a problem in that the distance from the thermal head to the roller head needs to be largely separated so that the positioning member does not interfere with the ink sheet of the ink cassette.

Moreover, since the structure of Unexamined-Japanese-Patent No. 1-97670 becomes the structure which opens and closes a thermal head and a roller at a rotational movement point, the space occupied by the trajectory of a moving member becomes large, and it becomes difficult to miniaturize (a seal | sticker In the configuration of the study, the opening and closing mechanisms of the head and the roller are not described.

In addition, the conventional paper sheet discharging mechanism requires parts such as a paper sheet discharging roller, a paper sheet discharging tray, and the like for the paper sheet discharging operation, in addition to the mechanism parts that operate during the recording paper feeding operation and the printing operation. There is a problem that the required number of parts is increased and the configuration is complicated.

Therefore, in response to a request from the user for miniaturization and thinning of the apparatus, there is also a problem that the overall configuration of the printer apparatus is complicated, and it is difficult to miniaturize and reduce the appearance.

The present invention relates to a printer apparatus for printing a recording on a recording sheet which is a recording medium.

1 is a front view showing the structure of a paper feeding mechanism of the printer apparatus of the first embodiment of the present invention;

Fig. 2 is a plan view showing the structure of the recording paper supply mechanism of the printer apparatus of the first embodiment;

3 is an explanatory diagram of a recording sheet supplying operation to a recording sheet conveying unit in the first embodiment;

Fig. 4 is an explanatory diagram of an operation of exchanging recording paper with a recording paper conveying unit in the first embodiment;

5 is a front view of a drive section for explaining the recording sheet supplying operation in the first embodiment;

6 is a plan view of a drive unit for explaining the recording sheet supplying operation in the first embodiment;

Fig. 7 is a plan view showing the structure of the recording paper conveying mechanism of the printer device according to the second embodiment of the present invention;

8 is a front view showing the structure of the recording paper transport mechanism of the printer device of the second embodiment;

9 is a front view showing a state in the print mode in the second embodiment;

10 is an exploded perspective view showing a partial configuration of a recording paper conveying unit in the second embodiment;

Fig. 11 is a plan view showing a print start standby state of the recording paper conveying unit in the second embodiment;

12 is an explanatory diagram of a recording sheet supplying operation from a recording sheet supplying unit in the second embodiment;

Fig. 13 is an explanatory diagram of a recording sheet receiving operation from the recording sheet supply unit in the second embodiment;

Fig. 14 is a front view showing the print end state of the recording paper conveying unit in the second embodiment;

15 is a front view of a drive section for explaining the recording paper conveying operation in the second embodiment;

16 is a plan view of a drive unit for explaining the recording paper conveying operation in the second embodiment;

17 is a front view showing the structure of the printing mechanism of the printer apparatus of the third embodiment of the present invention;

18 is a front view showing the structure of the printing mechanism of the printer apparatus of the third embodiment;

19 is a front view showing a state at the end of printing in the third embodiment;

20 is a perspective view showing the structure of the ink sheet in the third embodiment;

21 is a diagram for explaining the operation of the thermal head in the third embodiment;

Fig. 22 is a plan view showing the structure of a drive mechanism for a thermal head in the third embodiment;

Fig. 23 is a state explanatory diagram of standby states of the thermal head in the third embodiment;

Fig. 24 is a state explanatory diagram at the time of printing of the thermal head in the third embodiment;

25 is an explanatory view of the arrangement relationship at the time of standby of the printing unit in the third embodiment;

Fig. 26 is an explanatory view of the arrangement relationship at the start of printing of the printing section in the third embodiment;

Fig. 27 is an explanatory view of the arrangement relationship at the end of printing of the printing section in the third embodiment;

28 is a front view showing the structure of the drive unit in the third embodiment;

29 is a plan view showing the structure of a drive unit in the third embodiment;

30 is a plan view showing the structure of the recording paper discharging mechanism of the printer device of the fourth embodiment of the present invention;

31 is a front view showing the structure of the recording paper discharging mechanism of the printer device of the fourth embodiment;

32 is a front view showing a state at the end of printing in the fourth embodiment;

33 is an explanatory view of the position of the thermal head in the operation mode in the fourth embodiment;

Fig. 34 is an explanatory view of the arrangement relationship of the print portions at the standby time in the fourth embodiment;

Fig. 35 is an explanatory view of the arrangement relationship of the print portion at the start of printing in the fourth embodiment;

Fig. 36 is an explanatory view of the arrangement relationship of the printing section at the end of printing in the fourth embodiment;

37 is a front view showing the structure of the drive unit in the fourth embodiment;

38 is a plan view showing the structure of a drive unit in the fourth embodiment;

39 is a front view showing an example of the configuration of a recording paper supply mechanism of a conventional printer apparatus;

40 is a front view showing an example of the configuration of a recording paper transport mechanism of a conventional printer apparatus;

41 is a plan view showing the structure of a recording paper conveyance mechanism of the conventional printer apparatus;

42 (a) is an explanatory diagram of the operation in the recording paper supply mode by another conventional printer apparatus;

42 (b) is an explanatory view of the operation in the printing mode by the conventional printer apparatus;

Fig. 42C is an operation explanatory diagram in the recording paper ejecting mode by the conventional printer apparatus.

Therefore, the present invention solves these problems and eliminates the need for a mechanism by a recording plate pushing plate, a pushing lever, a pushing spring, and the like, which is conventionally required in the recording paper supply mechanism. It eliminates the need for a large power for displacing the movable push-up lever required by use to resist the elastic force of the push-up spring, simplifying the recording paper supply mechanism with a small number of parts, and supplying the recording paper at a small power. It is an object of the present invention to provide a printer device that can be made compact, and that the size and cost can be reduced.

In addition, by reducing the number of parts conventionally required in the recording paper transport mechanism, the structure of the recording paper transport mechanism can be simplified, and the image quality on both sides of the image printed on the recording paper can be eliminated. It is an object of the present invention to provide a high-performance printer device that can improve the print quality at a small size and at a low price, and can further prevent the increase of unnecessary margin on the recording paper after recording.

In addition, even if there is a component error in each component such as a link mechanism, a thermal head unit, a roller, etc. constituting the printing unit in the printing mechanism, the position between the roller and the thermal head is not sufficient. It is an object of the present invention to provide a printer device that can easily improve the precision of crystallization and which can improve the print quality at a smaller size and at a lower cost than in the prior art.

Further, in the positioning arrangement of the head and the roller by the positioning member as described above in the printing mechanism, when the ink cassette is detachable in the vertical direction with respect to the roller axis, the link mechanism is used to make the head almost parallel. It is an object of the present invention to provide a printer apparatus capable of reducing the moving space of the opening / closing mechanism between the head and the roller and reducing the height of the entire apparatus.

In addition, the number of parts of the recording paper discharging mechanism for discharging the finished recording paper to the outside of the printer body can be reduced, and the configuration thereof can be simplified further. Also, the entire printer apparatus can be simplified and the size can be reduced at a low price. An object of the present invention is to provide a printer device that can be thinned.

In order to achieve these objects, the present invention provides a printer apparatus for printing a recording on a recording paper which is a recording medium, comprising: a recording paper supplying mechanism for feeding the recording paper by supplying the recording paper into the printer body; The recording paper supply mechanism is rotatable in contact with the storage means for storing the recording paper and the recording paper accommodated in the storage means, and conveys the recording paper by the rotational contact, and separately conveys when there are a plurality of the recording papers. A recording paper supply roller and a pressing means for always pressing the recording paper on the recording paper supply roller for rotational contact with the recording paper of the recording paper supply roller, and conveying the recording paper by the rotational contact of the recording paper supply roller to the recording paper. It is characterized in that configured to be supplied to the printer body.

According to this configuration, at least, as a paper feeding mechanism, the recording paper supply roller which conveys the recording paper and feeds it into the printer body by storing the recording paper fed into the printer body as a recording medium, and the rotational contact with the recording paper of the recording paper supply roller. For this purpose, the recording paper supplying roller is provided with a pressing means for always pressing the recording paper, and the pressing means serves as a supporting means for supporting the storage means so as to be rotatable with respect to the printer body. By using the moment around the supporting portion of the holding means generated in the holding means by the holding means, the recording paper is pressed by the storing means by the recording paper feeding roller, and the recording paper of the first surface on which the recording paper feeding roller rotates in contact therewith. It is returned and fed into the printer body.

This eliminates the need for a recording plate pushing plate, a pushing lever, a pushing spring, or the like, which is conventionally required for the recording sheet supplying mechanism, and by using the mechanism. The large power for displacing the pushing lever against the elastic force of the pushing spring is also unnecessary, and the recording paper supply mechanism can be configured with a small number of parts, which can be simplified and fed with a small power, and can be reduced in size and cost. .

In addition, the present invention provides a printer apparatus for printing a recording sheet on a recording sheet which is a recording medium, comprising: a recording sheet conveying mechanism for reciprocating the recording sheet when printing the recording sheet on the recording sheet in the printer body; A carriage means for holding the tip of the recording paper and reciprocating the recording paper, a guide means for supporting the carriage means for guiding the reciprocating transfer operation during the reciprocating transfer operation of the recording means with the carriage, and the carriage A set of substantially driving means for driving the means for the reciprocating conveying operation and power means for applying power to the driving means, the driving means being arranged at approximately the center of the width direction of the recording paper. It is characterized by one.

According to such a configuration, the recording paper conveying mechanism includes carriage means for holding the leading end of the recording paper, guide means for supporting the carriage means, substantially one set of driving means for reciprocating the carriage means in the recording paper moving direction, And a drive means for applying power to the drive means, the drive means being disposed approximately in the center of the recording paper width direction, and the drive means being a lead screw or a timing belt. The recording paper is reciprocated by driving with only one timing belt.

In addition, the timing of one lead screw is driven by a motor using a lead screw inherently required to drive the reciprocating operation of the carriage means without using a plunger as in the prior art by driving the pressing member causing the clamp of the recording paper. It carries out by rotatingly driving through a belt.

As a result, the number of parts previously required in the recording paper transport mechanism can be reduced, thereby simplifying the configuration of the recording paper transport mechanism and eliminating the imbalance in the image quality on both sides of the image printed on the recording paper. In addition, it is possible to further improve the print quality at a small size and at a low price, and furthermore, to increase unnecessary margin on the recording paper after recording.

In addition, the present invention relates to a printer apparatus for printing a recording medium on a recording paper which is a recording medium, comprising using an ink cassette provided with an ink sheet and two rods for supplying and winding the ink sheet therein. The image is printed based on information input from the outside by thermal transfer of the ink on the ink sheet with respect to the recording paper, and a plurality of point heating elements are arranged in a substantially linear shape, and the thermal transfer is performed. Thermal head means selectively generated from the plurality of heat generating elements in accordance with an image for printing the heat for recording; and an arrangement of the plurality of heat generating elements in the thermal head means and the rotation axis in the same direction as the print head. A roller for pressing the recording paper and the ink sheet with the plurality of heating elements while rotating, and a bear for supporting and holding the rollers at both ends of the rotating shaft; And a printing mechanism that enables the ink cassette to be mounted in a direction parallel to the rotation axis of the roller, wherein the printing mechanism is configured to displace the thermal head means in a substantially vertical direction with respect to the arrangement of the heating elements. A displacement mechanism, wherein the thermal head means has first positioning means at both ends of the heat generator arrangement, and the bearing has second positioning means in the vicinity of the support of the roller, Characterized in that the positional relationship between the roller and the thermal head means is determined by engaging the first positioning means and the second positioning means by the displacement of the thermal head means by the displacement mechanism. do.

According to such a configuration, the print mechanism is provided with a first positioning means at both ends of the arrangement of the heating elements in the thermal head means, and a second positioning means in the vicinity of the support of the roller. Therefore, in printing, the thermal head means is displaced in a substantially vertical direction with respect to the arrangement of the heating elements by the displacement mechanism, and the first positioning means and the second positioning means are disposed at both ends of the thermal head means and the roller. And the positional relationship between the roller and the thermal head means.

As a result, even if there is a component error in each component such as a link mechanism, a thermal head unit, a roller, etc. constituting the print portion of the printing mechanism, the position between the roller and the thermal head is not obtained sufficiently. The crystal precision can be easily improved, and the print quality can be further improved at a smaller size and at a lower cost than in the prior art.

Further, in the positioning configuration of the head and the roller by the positioning member as described above in the printing mechanism, when the ink cassette is detachable in the vertical direction with respect to the roller axis, the link mechanism is used to make the head almost parallel. By moving, the moving space of the opening and closing mechanism of a head and a roller can be reduced, and the height of the whole apparatus can be suppressed low.

In addition, the present invention provides a printer apparatus for printing a recording on a recording paper which is a recording medium, wherein the recording paper stored in the recording paper storage unit attached to the printer body is supplied from the recording paper storage unit to the printer body for printing the print; A recording sheet discharging mechanism for discharging to the outside of the printer body, wherein the recording sheet discharging mechanism has a recording sheet discharging lever means arranged to press an end portion of the recording sheet on which the print recording is completed, and the recording sheet discharging lever means at the time of discharging the recording sheet; And a recording paper discharge storage portion for storing the recording paper whose end portion is pressed by the second paper, wherein the recording paper discharge lever means presses the end of the recording paper when conveying the recording paper on which the print recording is completed to the recording paper discharge storage portion. It is done.

According to this configuration, after the end of the printing, the recording paper ejecting lever means of the recording paper discharging mechanism rotates and presses the end of the recording paper while the recording paper is burnt its end on the roller. The recording paper is naturally dropped to the recording paper discharge storage portion of the bottom of the printer main body located below the still water supply portion, and the printed paper which has finished printing is conveyed to the recording paper discharge storage portion and stored in the recording paper discharge storage portion, and discharged to the outside of the printer body.

As a result, the number of parts of the recording paper discharging mechanism for discharging the finished recording paper out of the printer body can be reduced, and the configuration thereof can be simplified further. Also, as a whole of the printer apparatus, the configuration can be simplified and the appearance can be reduced at a low price. It can be downsized and thinned.

EMBODIMENT OF THE INVENTION Hereinafter, the printer apparatus which shows embodiment of this invention is demonstrated concretely, referring drawings.

(First embodiment)

The configuration and specific operation of the printer apparatus of the first embodiment will be described with reference to Figs.

Also in the printer apparatus described herein, similarly to the printer apparatus described in the background art, the printer apparatus is basically composed of mechanism blocks such as a recording paper supply unit, a printing unit, a recording paper conveying unit, a recording paper ejecting unit, and a driving unit, and the basic elements of each unit. The operation is the same. Further, here, mainly, the recording paper supply unit having a deep relation with the recording paper supply mechanism, the recording paper conveying unit, and the driving unit for driving them to operate these recording paper supplying units and the recording paper conveying unit as defined will be described.

First, of the recording paper supply unit and the driving unit constituting the recording paper supply mechanism of the printer apparatus of the first embodiment of the present invention, the recording paper supply unit will be described below.

1 and 2 are respectively a front view and a plan view showing a schematic configuration of a recording paper supply mechanism of the printer apparatus of the first embodiment.

1 and 2, the recording paper supply unit in the recording paper supply mechanism is a tray supported so as to be rotatable by the rotating shaft 102 as a supporting means constituting a pressing means on the exterior 100. As shown in FIG. (A) 104 and the tray (B) 106 supported so as to be rotatable similarly to this tray (A) 104, and a storing means is comprised, and these tray (A) 104 and the tray ( The storage means composed of B) 106 can be folded and stored as shown by the dashed-dotted line in FIG. 1 when not in use, and the recording paper 108 can be mounted as shown by the solid line when used.

In addition, the recording paper 108 is pressed against the recording paper supply roller 110 and brought into contact with the inside of the printer so as to be indicated by the arrow Y11 in synchronization with the rotation indicated by the arrow Y10 of the recording paper supply roller 110. . The pressing force of the recording paper 108 is attached to the recording paper 108, the tray (A) 104, the tray (B) 106, and the tray (B) 106 to form a sheet material ( It is given by the rotation moment M1 around the rotating shaft 102 which generate | occur | produces by the gravity W which synthesize | combined each magnetic weight of 114. The plate member 114 is a kind of weighting member, and its weight is set so that an optimum pressing force can be obtained in order to cause a recording sheet feeding operation.

In addition, the overlap conveyance prevention pad 116 to which the height member 118 is attached is always pressed against the recording paper feed roller 110 by a torsion spring (not shown). The recording paper 108 conveyed by the recording paper supply roller 110 in the printer body direction is biased toward the upper recording paper guide plate 120 by the elastic force of the upper recording paper guide plate 120 and Myra film itself. A print section in which a roller 72 or the like for passing through the lower guide plate 122 and pressing the thermal head unit S1 with the thermal head or the recording paper 108 toward the thermal head unit S1 is disposed; At the time of printing on the recording paper 108, a carriage 210 or the like for reciprocating the recording paper 108 is sent to the recording paper conveying unit.

Next, a driving unit for rotatingly driving the recording paper supply roller 110 described with reference to FIGS. 1 and 2 will be described as indicated by an arrow Y10.

This drive part is shown as the drive part 96 by the dashed-dotted line in FIG. 1 and FIG. 2, As shown in FIG. 5 and FIG. 6, the drive shaft pulley 402 and the worm gear ( A) 404 is fixed. Among these, the driving pulley 402 drives the reciprocating movement of the carriage 210 shown in FIG. 1 and FIG. 2 via the rubber belt 436. FIG.

On the other hand, a part of the power of the transfer motor 400 is selectively from the worm gear (A) 404 to the two-stage idler gear (A) 406, the idler gear (A) 408 as the transmission means, the two-stage idler. The gear B 437 and the reel gear 438 formed by the reel 8 for winding the ink sheet are transferred. The idler gear (A) 408 is axially supported by the rotation lever 410 which rotates and moves at the point C5, and the projection cam T5 formed by the rotation lever 410 serves as a selection means described later. The idler gear A is rotated by the rotation of the shaft 422 while being slid to fit in the cam groove formed in the drive cam 422 and swinging at the point C5 as indicated by the arrow Y50. 408 is a winding reel driving position which is a non-operating position engaged with the two-stage idler gear (B) 437 engaged with the reel-to-gear gear 438, and an operation of engaging with the idler gear (B) 414 described later. The recording paper feed position, which is the position, and the neutral position, which does not mesh with anything, can be selectively taken.

When the idler gear (A) 408 is in the recording paper supply position, the power from the transfer motor 400 is the idler gear supported by the shaft so that rotational movement is free to the idler gear (A) 408 and the cam shaft 418. (B) 414 (the drive cam 422 coaxially supported with the camshaft 418 is a separate component and can be rotated independently of each other), the idler gear (C) 416 (to be described later installed on the coaxial The two-stage idler gear (C) (426) can be rotated independently of each other as a separate component), the idler gear (D) 417, and the recording paper feed gear 420 is transferred to the above-described recording paper feed roller 110 ) To drive rotation. When the forward rotation and the reverse rotation of the transfer motor 400 are defined as follows, the drive of the take-up reel 8 is the forward rotation, and the drive of the recording paper feed roller 110 causes the inversion. Here, the forward rotation represents the direction of movement from the start position to the end position during the reciprocating movement of the carriage 210, and the reverse rotation represents the direction opposite to the forward rotation direction.

On the other hand, the drive cam 422 supported by the cam shaft 418 is driven by the cam motor 421 via the worm gear (B) 424 and the two-stage idler gear (C) 426. The drive cam 422 can take six stop positions in correspondence with the seven kinds of operation modes described in the following operation description (two of the seven operation modes are the same stop position). The position detection includes a position detection plate 428 which is provided with a predetermined switch corresponding to each stop position and which rotates integrally with the drive cam 422, and the position detection auto is disposed at a position opposite to the position detection plate 428. It carries out by the sensor 432 and the micro switch (not shown) which makes origin detection.

Next, the operation mode of the printer apparatus of the first embodiment will be described. The operation modes of the printer apparatus include seven operation modes of standby, recording sheet ejection, ink sheet loosening, recording sheet supply, recording sheet transfer, ink sheet transfer, and printing. Corresponding to the operation mode, it is configured to have six stop positions as described above. Table 1 is a table showing the operation states (positions) of the idler gears (A) 408 in the standby mode, the recording paper supply mode, and the printing mode related to the recording paper supply mechanism, among the seven operation modes described above. The paper feeding mode among these operation modes will be described below.

When the printer apparatus is in the feeding mode, the conveying motor 400 is reversely driven, and as shown in Fig. 3, the carriage 210 at an arbitrary position is moved to the release position, and the recording sheet 108 is a recording sheet supply roller ( 110, it is conveyed inside the printer body from the recording paper supply unit. First, the carriage 210 reaches the release position and waits for the recording paper 108 to arrive (in the meantime, the carriage motor 400 remains driven and the carriage 210 remains in the released state). .

Thereafter, the recording paper 108 conveyed and fed by the paper feeding roller 110 from the recording paper supply unit reaches the position shown in FIG. 3, and furthermore, as shown in FIG. 4, the carriage 210 moves the tip of the recording paper 108. By clamping, the recording sheet supplying operation of the recording sheet 108 by the recording sheet supplying unit driven by the drive unit 96 ends. In the meantime, the thermal head unit S1 of the print portion is in the paper feeding position shown in FIG.

In this way, when the carriage 210 clamps the tip of the recording paper 108, the recording paper position detection sensor (not shown) operates, and the conveying motor 400 is converted to the forward rotation drive, and the carriage 210 Moves to the left and right in the drawing, transfers to the start position, and starts the printing operation.

As described above, support by the rotary shafts 102 generated in the trays A, 104 and 106 due to the weight of the trays A, 104, 106 and the recording paper 108 and the sheet material 114. Using the moment M1 around the part, the recording paper 108 is pressed on the recording paper feed roller 110 by the trays A, 104 and 106, and the recording paper feed roller 110 rotates in that state. The recording sheet on the top surface to be connected can be transported and fed into the printer body.

As a result, the recording paper supply mechanism does not require a movable plate, a pushing lever, a pushing spring, or the like, which is conventionally required for the recording paper supply mechanism, and a movable push required by using the mechanism. It does not require large power to displace the lifting lever against the elastic force of the lifting spring, and the recording paper supply mechanism can be configured with a small number of parts, and can be fed with a small power, and can be reduced in size and cost. Can be.

In addition, the drive cam 422 is configured to convert the idler gears (A) 408 into a feeding position for transmitting power for transferring the recording paper to the recording paper supply roller 110 and a winding reel driving position for blocking. In the paper feeding operation of the printer apparatus, the idler gear (A) 408 is used as the recording paper supply position, and the power for recording paper conveyance applied from the transfer motor 400 is transferred to the recording paper supply roller 110, and the recording paper supply is performed in that state. The recording paper on the top surface of which the roller 110 rotates can be conveyed and fed into the printer body.

As a result, the paper feeding mechanism can be configured with a small number of parts, can be simplified and can be fed with low power, and can be miniaturized and reduced in cost.

Further, in the first embodiment, the holding means and the recording paper 108 are formed by using the pressing means as the rotating shaft 102 and the plate member 114, which are the supporting means for supporting the moving means freely with respect to the printer body. And the recording paper 108 is pressed against the recording paper supply roller 110 by the storage means by using the moment around the supporting portion by the rotating shaft 102 generated in the storage means by the total weight of the sheet material 114. Although the recording paper feed roller 110 is configured to convey the recording paper on the top surface which is in rotational contact in the state and to feed the paper into the printer body, the storage means is always pressed toward the recording paper feed roller 110 with the rotating shaft 102 as the center of rotation. It is also possible to provide a pressurizing means such as a spring which can apply a force from the lower surface so that the same effect can be obtained.

Second Embodiment

The configuration and specific operation of the printer apparatus of the second embodiment will be described with reference to Figs.

Also, in the printer apparatus described herein, similarly to the printer apparatus described in the background art, the printer apparatus is basically composed of mechanical blocks such as a recording paper supplying unit, a printing unit, a recording paper conveying unit, a recording paper ejecting unit, and a driving unit, and the basis of each part. The operation is the same. In addition, mainly, the recording paper conveying part which has a relationship with a recording paper conveying mechanism, a printing part, and the drive part which drives them in order to operate these recording paper conveying parts and a printing part predeterminedly are demonstrated.

First, of the recording paper conveying unit and the driving unit constituting the recording paper conveying mechanism of the printer device of the second embodiment, the recording paper conveying unit will be described below.

7 and 8 are a plan view and a front view respectively showing a schematic configuration of a recording paper transport mechanism of the printer device of the second embodiment.

As shown in Figs. 7 and 8, the recording paper conveying unit in the recording paper conveying mechanism reciprocates the recording paper 108 in the printer apparatus (actually three round trips) to form a color image in the printing unit. As shown in FIG. 7, the lead screw 204 as the driving means supported by the bearings 200 and 202 is disposed almost in the center of the printer main body, and the conveying motor 400 is a power means described later in FIG. 11. And by the rubber belt 436 as a drive means for the forward and reverse rotation drive.

On one end (right side of the drawing) of the lead screw 204, a position detecting plate 206 made of a resin magnet with a multi-pole magnet attached thereto is fixed. The MR sensor 208 is disposed opposite to the position detecting plate 206, thereby causing the amount of rotation of the lead screw 204 to be detected.

9 shows the state immediately after the end of printing in the printing mode (recording paper conveying mode) in the recording paper conveying mechanism of the printer apparatus of the second embodiment.

The detailed configuration of the recording paper carrier is described below with reference to FIGS. 10 to 14.

11 and 13 show a state in which the carriage 210, which will be described later, is at the start position in the print mode, that is, a plan view and a side view showing the print start state, and FIG. 12 is in the same release position, i.e., before and after the print operation. In the recording paper conveying mode, that is, the end position in the recording paper conveying mode, i.e., the end of printing in the printing mode (not only when the printing of the three colors has been completely completed, Is also included at the end of ignition). 10 is an exploded perspective view showing an overview of main components of the carriage 210.

The carriage 210 incorporates a female screw member 212 fitted to the lead screw 204 in the carriage body 210a, and reciprocates between the release position and the end position in response to forward and reverse rotation of the transmission motor. Move.

As shown in FIG. 13, the start position of the carriage 210 is a position displaced to the left side of the figure slightly rather than the release position shown in FIG. Rotation regulation of the carriage 210 around the center axis of the lead screw 204 is a guide in which the carriage shaft 214 protruding downward of the carriage body 210a is formed in the exterior 100 shown in FIGS. 7 and 8. It is implemented by being guided by the groove 216 which is a means.

In addition, the carriage 210 has two pressing members 218 and 220 supported by the carriage body 210a so as to be freely rotatable. As shown in Fig. 13, the front end portion of the recording paper 108 can be held to be sandwiched. In order to obtain this holding force, a force is applied to rotate the pressing members 218 and 220 by the compression springs 232 and 234.

As shown in FIG. 10, the female screw member 212 has a cylindrical shape, and the female screw member 212 freely slides in the fitting hole 222 formed in the center portion of the carriage body 210a. The drive shafts 224 and 226 protruding on both sides of the female screw member 212 are fitted into two U-shaped long holes 228 and 230 formed in the same carriage body 210a. The sliding movement of the female screw member 212 is possible within the range regulated by the long holes 228 and 230.

The pressing members 218 and 220 are formed with the bent portions 240 and 242 having the tip ends of the cam faces 236 and 238, and the cam faces 236 and 238 have a drive shaft ( 224) and 226. For this reason, the female screw member 212 always applies a force to the left end in the carriage body 210a by the elastic force of the compression springs 232 and 234, as shown to FIG. 13 and FIG. have.

Further, when the female screw member 212 is displaced with respect to the carriage body 210a in the direction in which the thermal head unit S1 in the right direction in FIG. 13 is located from the left end, the drive shaft 224 of the female screw member 212 is moved. , 226 rotates the pressing members 218 and 220 in the counterclockwise direction on the drawing via the cam surfaces 236 and 238. That is, as shown in Fig. 12, the carriage 210 is in the unlocked position, and the pressing members 218 and 220 are in a released state with the inlet open.

The female screw member 212 has a thread 244 therein, while the lead screw 204 has a thread over almost the entire length (but the middle is omitted in each figure). There is a portion 246 in which no thread is formed. Here, even if the lead screw 204 is driven, the female screw member 212 cannot be transmitted. As will be described later, FIG. 12 corresponds to this state.

The following briefly describes the operation. When the carriage 210 at any position between the start position and the end position shown in FIGS. 13 and 14 is further displaced to the right side of the drawing beyond the start position, as shown in FIG. 12, the carriage 210 is One end of the carriage body 210a is in contact with the stopper 248 shown in FIG.

Here, if the conveying motor 400 continues to rotate further, the female screw member 212 further continues to displace in the right direction, and is passed to the threadless portion 246 at the end of the lead screw 204. It is in a state of rotation at the position. During this time, the cam surfaces 236 and 238 are pressed by the drive shafts 224 and 226 of the female screw member 212. As a result, as shown in FIG. 12, the pressing members 218 and 220 are Have liberation

This is because in the drawing of the lead screw 204, the inclined surface on the right side of the thread on the rightmost end is kept sliding while rotating the left inclined surface of the thread on the same left end of the female screw member 212.

Next, when the rotation of the conveying motor 400 is reversed to the forward rotation drive, the female screw member 212 starts to engage with the thread of the lead screw 204 again, leaving the carriage body 210a right. Displace to the direction. When the female screw member 212 reaches the first left side of the movable range in the carriage body 210a, thereafter, the female screw member 212 starts to move in the end position direction shown in Fig. 14 after being integrated with both.

The printer apparatus forms a color image by superimposing three colors of yellow (Y), red (M), and blue (C), so that the carriage 210 is substantially separated between the start position and the end position. You need to make a round trip.

After the end of the printing operation performed as described above, the carriage 210 is turned over to the release position as described above, and as shown in Fig. 12, the pressing members 218 and 220 are in the released state. In this state, the thermal head unit S1 is picked up from the print position to the recording paper discharging portion and the unwinding position, thereby releasing the pressing of the thermal head unit S1 toward the recording paper 108 by the thermal head unit S1.

Next, a driving section for reciprocating the carriage 210 in the recording paper conveying section explained in Figs. 7 and 8 will be described.

This drive part is shown as the drive part 96 by the dashed-dotted line in FIG. 7 and FIG. 8, As shown in FIG. 15, the drive pulley 402 which is a transmission means, and a worm gear are shown in the rotating shaft of the conveying motor 400. As shown in FIG. (A) 404 is fixed.

15 and 16, the idler gear (A) 408 is supported by the rotary lever 410 which rotates and moves around the point C5, and the projection T5 formed on the rotary lever 410. By sliding the drive cam 422 to be described later, the slide cam is fitted into the cam groove formed in the drive cam 422, and the swing is made by swinging the point C5 as a point as indicated by arrow Y50. The idler gear (A) 408 meshes with the reel driving position engaged with the two-stage idler gear (B) 437 meshed with the reel stand gear 438 and the idler gear (B) 414 described later. The recording paper feed position and the neutral position not engaged with either side can be selectively taken.

When the idler gear (A) 408 is in the recording paper feed position, the power from the transfer motor 400 is idler gear (B) supported so as to be freely rotated by the idler gear (A) 408 and the cam shaft 418. ) (414) (the drive cam 422 coaxially supported on the cam shaft 418 can be rotated independently of each other as a separate component), idler gear (C) 416 (2 described later installed on the coaxial However, the idler gear (C) 426 can be rotated independently of each other as a separate component), the idler gear (D) 417, and the recording paper feed gear 420 is transferred to the printer body by the recording paper supply unit described above. Drive the recording paper supply operation in the apparatus.

In this way, a part of the power of the transfer motor 400 for driving the feeding operation is selectively selected from the worm gear (A) 404 when the idler gear (A) 408 is in the winding reel driving position. (A) 406, idler gears (A) 408, two-stage idler gears (B) 437, and reel gears 438 formed on the winding reel base 8 for winding the ink sheet.

In addition, when the forward rotation and the reverse rotation of the transfer motor 400 are defined as follows, the drive of the take-up reel 8 is the forward rotation, and the drive of the recording paper supply section causes the reverse rotation.

As a result, the forward rotation of the transfer motor 400 is made in the direction of conveying from the start position to the end position during the reciprocating movement of the carriage 210, and the inversion of the conveying motor 400 is made in the opposite direction to the forward rotation direction. do.

The drive cam 422 supported by the camshaft 418 is driven by a cam motor 421 via a worm gear (B) 424 and a two-stage idler gear (C) 426. The drive cam 422 can take six stop positions corresponding to the seven types of operation modes described in the following operation description (two of the seven types of operation modes are the same stop position). The position detection includes a position detection plate 428 in which a predetermined slit is formed corresponding to each stop position and rotates integrally with the drive cam 422, and an auto sensor for position detection disposed at a position opposite thereto. 432 and a microswitch (not shown) which causes origin detection.

In the drive part 96 comprised as mentioned above, the drive pulley 402 fixed to the rotating shaft of the conveying motor 400, of the driven pulley 403 fixed to the right end of the lead screw 204 as shown in FIG. 7 and 8, the reciprocating movement of the carriage 210 in the direction of the arrow Y12 is driven through the rubber belt 436 suspended therebetween.

Next, the operation mode of the printer apparatus of the second embodiment will be described. The operation modes of the printer apparatus include seven operation modes of standby, discharge, ink sheet unwinding, paper feeding, recording paper conveyance, ink sheet conveyance, and printing. The above-described driving cam 422 corresponds to these operation modes. As described above, it is configured to have six stop positions. Table 2 shows the thermal head unit (S1), idler gear (A) 408, in the recording paper supply mode, the recording paper conveying mode, and the printing mode related to the recording paper conveying mechanism, among the seven types of operation modes described above. This table shows the operating state (position) of the carriage 210.

Each operation mode of these recording paper supply modes, recording paper transport modes, and printing modes will be described below.

(Feeding Mode)

When the printer device is in the recording paper supply mode, the conveying motor 400 is reversely driven, and as shown in Fig. 12, the carriage 210 at an arbitrary position moves to the release position, and the recording paper 108 is a recording paper. It is conveyed inside the printer body rather than the supply part. First, the carriage 210 reaches the release position and waits for the recording paper 108 to arrive in the state where the pressing members 218 and 220 are released (in the meantime, the transfer motor 400 is inverted and driven). Carriage 210 is held at the release position).

Then, when the tip of the recording paper 108 conveyed and fed from the recording paper supplying unit reaches the position of the recording paper conveying unit, the recording paper position detecting sensor (not shown) is operated, and the conveying motor 400 is replaced by the forward rotation drive. do. As shown in FIG. 13, when the carriage 210 moves from the release position shown in FIG. 12 to the left in the drawing and reaches the start position by the forward rotation driving of the conveying motor 400, the pressing member 218, ( The recording paper of the recording paper 108 by the recording paper supplying part driven by the drive part 96 by being rotated by the compression springs 232 and 234, and clamping the tip of the recording paper 108 by 220. As shown in FIG. The supply operation ends. In the meantime, the thermal head unit S1 of the printing unit is in the recording paper supply position shown in FIG.

Thus, the thermal head unit S1 and idler gear A in the paper feeding mode, the recording paper conveying mode and the printing mode in which the pressing members 218 and 220 of the carriage 210 are particularly related to the recording paper conveying mechanism. 408 and a table showing operation states (positions) of the carriage 210.

Each operation mode of the paper feed mode, the recording paper conveyance mode, and the print mode will be described below.

(Recording Paper Supply Mode)

When the printer device is in the recording paper supply mode, the conveying motor 400 is reversely driven, and as shown in Fig. 12, the carriage 210 at an arbitrary position moves to the release position, and the recording paper 108 is a recording paper. It is conveyed inside the printer body rather than the supply part. First, the carriage 210 reaches the release position and waits for the recording paper 108 to arrive in the state where the pressing members 218 and 220 are released (in the meantime, the transfer motor 400 is inverted and driven). Carriage 210 is held at the release position).

After that, when the tip of the recording paper 108 conveyed and fed from the recording paper supplying unit reaches the position of the recording paper conveying unit, the recording paper position detecting sensor (not shown) is operated, and the conveying motor 400 is converted to forward rotation driving. . As shown in FIG. 13, when the carriage 210 moves from the release position shown in FIG. 12 to the outward direction and reaches the start position by the forward rotation driving of the transfer motor 400, the pressing member 218, The recording paper 108 can be rotated by the compression springs 232 and 234, and the recording paper 108 by the recording paper supply unit driven by the driving unit 96 is clamped by the tip of the recording paper 108. The paper feeding operation ends. In the meantime, the thermal head unit S1 of the printing unit is in the recording paper supply position shown in FIG.

In this way, when the pressing members 218 and 220 of the carriage 210 clamp the tip of the recording sheet 108, the recording sheet position detection sensor (not shown) is activated, and the printing operation is started in accordance with the printing mode. Then, the transfer motor 400 is converted to electrostatic driving, and the carriage 210 further moves in the left direction of the drawing.

In this printing operation, according to the recording paper conveying mode, the reciprocating conveying operation of the recording paper 108 by the recording paper conveying unit is simultaneously performed as shown in FIGS. 13 and 14.

(Recording Paper Transfer Mode 1's = Recording Paper Transfer Mode)

For example, when the carriage 210 stops at a position shifted from the start position shown in Fig. 13, the carriage 210 is moved back to the start position in the recording paper conveyance mode. At this time, since the idler gears (A) 408 are in the neutral position, the ink sheet 12 is not driven. The thermal head unit S1 is at the same recording sheet and sheet conveying position. Moreover, in the discharge of the ink sheet, when the conveyance amount is more than the predetermined amount, the above operation is repeated several times.

(Print Mode)

Next, while energizing the thermal head 22 of the thermal head unit S1, the carriage 210 is moved from the start position to the end position shown in FIG. 14. The recording paper 108 and the ink sheet are driven together, and first, a yellow image is printed. When the carriage 210 reaches the end position shown in Fig. 14, the printing of the first color is completed.

(Recording Paper Transfer Mode His 2 = Recording Paper Transfer =)

After the printing of the yellow image is finished, the recording paper transfer mode is replaced with the recording paper transport mode. The recording paper 108 returns to the start position shown in Fig. 13, and the recording paper transport mode and the printing mode are performed as described above for the red and blue images. By repeating the operation, printing of the full color image on the recording paper 108 is completed. After completion of the blue image printing, the recording paper conveyance mode ends with the recording paper 108 returned to the start position.

As described above, the lead screw 204 and the single rubber belt 436 are used as the driving means for driving the reciprocating movement of the carriage 210. And the rubber belt 436 alone, and the carriage 210 can reciprocate the recording paper 108.

In addition, the opening / closing operation of the pressing members 218 and 220 that cause the clamping operation of the recording paper 108 is also performed without using a separate member such as the plunger 623B shown in the conventional example described with reference to FIGS. 40 and 41. 12 and 13, the lead screw 204 is driven by a conveying motor 400 using a lead screw 204 using a lead screw 204 originally required for driving the reciprocating operation of the carriage 210. By rotationally driving via 436, the reciprocating movement in the carriage body 210a of the female screw member 212 can be performed.

As a result, by reducing the number of parts required in the recording paper transport mechanism in the past, the structure of the recording paper transport mechanism can be greatly simplified, and the image quality imbalance on both sides of the image printed on the recording paper can be eliminated. In addition, it is possible to improve the print quality more compactly and cheaply, and to prevent unnecessary increase in the margin on the recording paper after recording.

In addition, the second embodiment has been described as an example of the recording paper conveying unit, in which the lead screw 204 is integrated in the above configuration, but is not limited to the above configuration to achieve the object of the present invention.

For example, one rubber belt may be disposed approximately in the center of the width direction of the recording sheet 108.

At this time, the guide of the carriage 210 may use two guide shafts 612B and 614B, as in the conventional example shown in Figs. 40 and 41, and one guide shaft is connected to the rubber belt. Similarly, it is also possible to realize that it is arranged substantially in the center and the rotation regulation around this axis is carried out using the carriage shaft 214 and the groove 216 as shown in FIG.

(Third Embodiment)

The configuration and specific operation of the printer apparatus of the third embodiment will be described with reference to FIGS. 17 to 29.

Also in the printer apparatus described here, similarly to the printer apparatus described in the background art, the printer apparatus is basically composed of mechanism blocks such as a recording paper supply unit, a printing unit, a recording paper conveying unit, a recording paper ejecting unit, and a driving unit, and also the basic operation of each unit. same. Here, the description will mainly be made of a printing unit and a driving unit constituting the printing mechanism, a recording paper supply unit and a recording paper conveying unit having a deep relationship with the printing unit which is driven together with the printing unit by the driving unit and operates as prescribed.

First, the print portion of the print portion and the drive portion constituting the print mechanism of the printer apparatus of the third embodiment will be described below.

17, 18 and 19 are a plan view and a front view respectively showing a schematic configuration of a printing mechanism of the printer device of the third embodiment. 17, 18, and 19, the printing unit in the printing mechanism is a mechanism for forming a color image on the surface of the recording paper 108 reciprocally conveyed (substantially three round trips) in the printer body. Block.

In this print section, the ink cassette 2 held on the main body substrates 4 and 6 has two rods (shown in Fig. 20) in which the ink sheet 12 is wound. Not). These two rods are fitted to the take-up reel base 8 and the supply reel base 14 at one end, respectively, and can wind and convey the ink sheet 12 in the left direction of the drawing.

In the ink sheet 12, as shown in FIG. 20, each ink of yellow (Y), red (M), and blue (C) is mutually coated on the transparent sheet 10. As shown in FIG. Before the yellow (Y), a black opaque thin marker 90 is painted, and for the purpose of detecting this, the light receiving sensor 94 is disposed on the printer body at the LED 92 and the position opposite thereto. It is. When the printing starts, the ink sheet 12 is extruded in advance by these stroke markers 90, LEDs 92, and the light receiving sensor 94 in advance.

The thermal head 22 is integrally provided with a thermal head cover 16 on which a resin guide member 18 is formed, and is fixed to the heat dissipation plate 24 on the rear surface thereof (then, these are thermal head units). (26). Here, the guide member 18 is configured to guide the traveling of the ink sheet 12 described above and to cover the IC for thermal head driving as a protection means of the drive circuit of the thermal head 22. The thermal head unit 26 has a link mechanism described later, as shown in FIG. 21, a print position A (corresponding to the state shown in FIG. 19) that is pressed by the roller 72, which is one of the lower ones, to be described later. The standby position E, the recording sheet discharging / sheet unwinding position D, the recording sheet feeding position C (corresponding to the state shown in Figs. 17 and 18), and the recording sheet / sheet conveying position B located in the middle thereof can be selectively taken.

22 and 23 are detailed views of a link mechanism which is a displacement mechanism for displacing the thermal head unit 26 up and down, and shows that the thermal head unit 26 is in the standby position E shown in FIG. 21. Indicates. FIG. 24 shows a state where the same thermal head unit 26 is in the print position A shown in FIG. As shown in Fig. 22, the driving angle 28 having a couped shape is freely supported by the shafts 30 and 32 fixed to the main body substrates 4 and 6, and the bent portion 34 at both ends thereof. On the other hand, the camshaft 419 fitted in the cam groove (not shown) formed in the drive cam mentioned later is being fixed.

In addition, each of the bent portions 34 has two shafts 36 and 38 which protrude outwards, and the links 40 and 42 are supported by the shafts freely in rotation. . In the links 40 and 42, shafts 44 and 46 which protrude in the same outward direction are fixed to the ends. The shafts 44 and 46 are fitted in the guide grooves 48 and 50 formed in the body substrates 4 and 6 so as to allow displacement freely.

On the other hand, the support heads 26 and 54 are fixed to the thermal head unit 26 at both ends. The supporting metal spheres 52 and 54 are provided with fitting holes 56 and 58 and long fitting holes 60 and 62, respectively, and fitting holes 56 and 58, respectively. ), The shafts 64, 66 on the links 40, 42 are inward on the bent portions 34 on both sides of the driving angle 28 in the long fitting holes 60, 62, respectively. Protruding shafts 68 and 70 are fitted.

As described above, by configuring the link mechanism, the thermal head 22 fixed to the thermal head unit 26 is approximately vertically and stably between the print position A and the standby position E shown in FIG. It becomes possible to reciprocate.

17, 18, and 19, the other components in the print section will be described.

As shown in FIG. 17, FIG. 18, and FIG. 19, the roller 72 is rotatably supported by the bearing 74 and 76 at the both ends. The bearings 74 and 76 have protrusions 82 and 84 fitted into the long holes 78 and 80 formed in the body substrates 4 and 6, respectively, in the vertical direction. Displacement is possible within the range regulated by the long holes 78 and 80. In addition, between the bearings 74 and 76 and the bottom substrate (not shown), compression springs 86 and 88 are disposed as shown in Figs. 23 and 24, respectively, and the bearings 74, The roller 72 is pushed upward through 76.

When the thermal head unit 26 is in the position other than the print position A shown in FIG. 24, this roller 72 is located in the first position of the range where the bearings 74 and 76 are displaceable as shown in FIG. Although it stops at, when the thermal head unit 26 is in the printing position A shown in FIG. 24, the roller 72 is located below the night at the said position, and pressure is applied to the thermal head 22. FIG.

When the thermal head unit 26 is in the print position A shown in FIG. 24, the positioning shaft 17 as the first positioning means integrally formed at both ends of the thermal head cover 16 is formed of the roller 72. The state inserted into the V-grooves 75 and 77 as the second positioning means formed in the bearings 74 and 76 as the second positioning means formed in the 77 and 76. In this case, relative positioning of the thermal head 22 and the roller 72 is performed.

This configuration has the following characteristics. That is, since the thermal head cover 16 is integrally formed with the thermal head 22, the cumulative dimension error of the positioning shaft 17 with respect to the heat generating portion (not shown) of the thermal head 22 is determined. It can be formed accurately without.

Through this positioning shaft 17 and bearings 74 and 76, the precision of the relative position between the thermal head 22 and the roller 72 (for example, a heat generating portion (not shown) and the roller 72). By ensuring a torsional position accuracy with respect to the central axis of the structure, very fine image quality can be realized on the whole surface of the recording paper 108 than before.

In addition, by integrally molding the positioning shaft 17 and the guide member 18, it is possible to further improve the accuracy guarantee of the relative position between the thermal head 22 and the roller 72 at low cost and easily. Can be.

Next, the driving unit among the printing unit and the driving unit constituting the printing mechanism of the printer apparatus of the third embodiment will be described below.

FIG. 28 is a front view showing the structure of a drive unit in the printing mechanism of the printer device of the third embodiment, and a plan view thereof is shown in FIG. As shown in FIGS. 28 and 29, the drive cam 422 supported by the camshaft 418 is connected to the worm gear (B) 424 and the two-stage idler gear (C) 426 by the cam motor 421. Driven through. The drive cam 422 can take six stop positions corresponding to the seven types of modes described later (two of the seven modes of operation become the same stop position).

The six position detections include a position detection plate 428 which rotates integrally with a drive cam 422 in which a predetermined slit is formed corresponding to each stop position, and a position detection auto sensor disposed at a position opposite thereto. 432, and a microswitch (not shown) for performing origin detection. By the drive cam 422, the thermal head unit 26 is opened as shown in Figs. 22, 23 and 24 via a cam shaft 419 (see Fig. 22) fitted to the cam groove (not shown). The drive angle 28 of the link mechanism which moves up and down is driven.

Next, the operation mode of the printer apparatus of the third embodiment will be described in order to show the operation relationship between the printing section and the driving section, the recording paper supply section, and the recording paper conveying section which constitute the printing mechanism.

There are seven types of operation modes of this printer apparatus, which are standby, recording paper ejection, ink sheet unwinding, recording paper supply, recording paper conveyance, ink sheet conveyance, and printing. The drive cam 422 described above is configured to have six stop positions as described above corresponding to these seven types of operation modes. Each of these seven operation modes is demonstrated below.

(Standby mode)

It is a state which the attachment and detachment of the ink cassette 2 shown in FIG. 17, FIG. 18, and FIG. 19 is possible. The thermal head unit 26 is once higher (standby position E) in FIG.

In the printer device of the third embodiment, the ink cassette 2 is configured to be attached or detached in the direction indicated by the arrow Y1 in FIG.

(Recording Paper Supply Mode)

The conveying motor 400 shown in FIG. 28 is driven in reverse rotation, and as shown in FIG. 25, the carriage 210 at an arbitrary position moves to the release position, and the recording paper 108 moves to the recording paper supply roller ( 110 is conveyed inside the main body. First, the carriage 210 reaches the release position, and the pressing members 218 and 220 wait for the recording paper 108 to reach in the released state (in the meantime, the conveying motor 400 is driven in reverse rotation). Since the pressing members 218 and 220 remain in the released state).

When 108 reaches the position shown in Fig. 25, the recording paper position detection sensor (not shown) is activated, the conveying motor 400 is converted to the forward rotation drive, and the carriage 210 is moved to the left in the figure to start. Reach position. As shown in FIG. 26, when the carriage 210 reaches the start position, the pressing members 218 and 220 move the tip of the recording paper 108 to be rotated by the compression springs 232 and 234. Clamp. In the meantime, the thermal head unit 26 is in the paper feeding position C shown in FIG.

(Ink sheet transfer mode = Ink sheet export =)

Extrusion of the ink sheet 12 is performed in this ink sheet conveyance mode. In this mode, the ink sheet 12 is conveyed by the forward rotation of the transfer motor 400 until the stroke marker 90 shown in FIG. 20 is detected via the drive unit 96. At this time, since the drive system is not blocked, the carriage 210 moves to the left in FIG. 25 while clamping the recording paper 108 to reach the start position shown in FIG. In the meantime, the thermal head unit 26 is in the recording paper sheet transfer position B shown in FIG.

(Recording paper conveyance mode = the 1 =)

As described above, when the carriage 210 stops at a position shifted from the start position shown in Fig. 26, the carriage 210 is moved back to the start position in this recording paper conveyance mode. In this case, since the idler gears (A) 408 shown in FIG. 28 and FIG. 29 are in a neutral position, the ink sheet 12 is not driven. The thermal head unit 26 is located at the same recording sheet and sheet conveying position B. FIG. Moreover, in the thinning of the ink sheet 12, when the conveyance amount is more than a predetermined amount, the said operation is repeated several times.

(Print Mode)

Next, while energizing the thermal head 22, the carriage 210 is moved from the start position shown in FIG. 26 to the end position shown in FIG. At this time, the recording sheet 108 and the ink sheet 12 are driven together, and first, a yellow image is printed. When the carriage 210 reaches the end position, the printing of the first color (yellow) is completed. In the meantime, the thermal head unit 26 is in the print position A shown in FIG.

(Record Transfer Mode = G2: Record Return =)

After the printing of the yellow image ends, the recording paper transfer mode is switched again, and the recording paper 108 is returned to the start position shown in FIG. By repeating the above operation for the red image and the blue image, the printing of the full color image is completed. In this manner, after the printing of the blue image is completed, the recording paper conveying mode ends when the recording paper 108 returns to the start position. In the meantime, the thermal head unit 26 is in the print position A shown in FIG.

(Ink Sheet Unlocking Mode)

In order to prevent loosening of the ink sheet 12 due to the rise of the position of the thermal head unit 26, the ink sheet 12 is wound up. In the meantime, the thermal head unit 26 is in the discharge | release sheet discharge prevention position D shown in FIG.

(Record sheet eject mode)

Next, in the recording paper discharging mode, the recording paper 108 is driven from the end position shown in FIG. 27 to the release position shown in FIG. 25, whereby the clamps by the pressing members 218 and 220 are released, and the recording paper furthermore. It is conveyed to the recording paper discharge storing unit 302 by the discharging unit (the description here is omitted). In the meantime, the thermal head unit 26 is in the recording paper discharge / sheet release prevention position D shown in FIG. This completes a series of print operations.

As described above, the thermal head unit 26 of the printing mechanism is provided with the positioning shaft 17 serving as the first positioning means at both ends of the arrangement of the heating elements in the thermal head 22, By forming the V grooves 75 and 77 which are the second positioning means in the bearings 74 and 76 in the vicinity of the support part of the roller 72, the thermal head is carried out by a link mechanism at the time of printing. (22) is displaced in a substantially vertical direction with respect to the arrangement of the heating elements, and the positioning shafts (17) and the V grooves (75) and (77) are engaged at both ends of the thermal head (22) and the roller (72). The positional relationship between the roller 72 and the thermal head 22 can be determined.

As a result, there is a component error in each component such as the link mechanism, the thermal head unit 26, the roller 72, and the like, which constitute the print portion of the printing mechanism, and even when the assembly precision thereof is not sufficiently obtained, the roller ( The positioning accuracy between the 72 and the thermal head 22 can be easily improved, and the print quality can be further improved more compactly and cheaply than in the past.

(Example 4)

The configuration and specific operation of the printer apparatus of the fourth embodiment will be described with reference to Figs.

Also in the printer apparatus described herein, similarly to the printer apparatus described in the background art, the printer apparatus is basically composed of mechanical blocks such as a recording paper supply unit, a printing unit, a recording paper conveying unit, a recording paper ejecting unit, and a driving unit, and the basic operation of each unit is also same. Here, mainly, the recording paper discharging unit and the driving unit constituting the recording paper discharging mechanism, the recording paper supplying unit and the recording paper conveying unit which are driven by the driving unit together with the recording paper discharging unit and operate in a predetermined manner, are deeply described. .

First, the recording sheet discharging unit, which constitutes the recording sheet discharging mechanism of the printer device of the fourth embodiment, will be described below.

30, 31 and 32 are a plan view and a front view respectively showing a schematic configuration of the recording paper discharging mechanism of the printer device of the fourth embodiment. As shown in Figs. 30, 31 and 32, the recording sheet discharging unit in the recording sheet discharging mechanism is attached to the printer body and constituted by trays (A) 104 and trays (B) 106 as the recording sheet storing unit. From the recording paper supply trays 104 and 106 for the recording of the recording paper 108, which is a recording medium housed in the recording paper supply tray (hereinafter referred to as the recording paper supply trays 104 and 106), It is a mechanism block for discharging the recording paper 108, which is supplied to the inside of the printer body, is reciprocally conveyed by the recording paper conveying unit (substantially three round trips) and completed printing of the printing by the printing unit. The recording paper discharge lever 300 provided so as to press the end of the recording paper 108 on which recording is completed by the recording paper discharge lever tip 304, and the recording paper discharge lever tip 304 at the time of discharging the recording paper 108. To store the pressed recording sheet 108 Rokji and a drain water housing 302.

Here, the recording paper supply trays 104 and 106 are attached to the printer body so as to be inclined with respect to the horizontal plane so that the end of the printer body side of the stored recording paper 108 is lower than the end of the opposite side. The recording paper discharge storage portion 302 is disposed so as to be located under the trays 104 and 106.

The operation of the discharge unit in the discharge mechanism configured as described above will be described below.

First, after the printing by the printing unit is finished, the carriage 210 of the recording paper conveying unit is brought from the end position shown in FIG. 32 to the release position shown in FIG. 31, and the pressing members 218 and 220 are provided. Becomes liberated. In this state, as shown in FIG. 33, the thermal head unit 26 is picked up from the printing position A to the recording paper discharge part and sheet release prevention position D, and the press on the recording paper 108 is released.

At this point in time, however, the recording sheet is not discharged as long as the left end on the drawing is placed on the roller 72. Here, the recording paper ejecting lever 300 is rotated and moved in the counterclockwise direction by the drive cam 422 described later, and the recording paper ejecting lever tip 304 presses the left end portion on the drawing of the recording paper 108. As a result, the recording sheet 108 is pushed in the right direction on the drawing beyond the roller 72, guided to the lower surface of the lower recording sheet guide plate 122, and is located in the recording sheet discharging portion at the bottom of the printer main body. 302 is naturally dropped and stored.

In this way, the recording sheet 108 on which the print recording is completed is discharged to the outside of the printer main body.

33, the right end of the recording paper discharge / sheet release prevention position D of the thermal head unit 26 shown in FIG. 33 is shown on the drawing of the recording paper 108 pressed by the recording paper discharge lever 300. The position is set such that the guide member 18 enters the lower recording paper guide plate 122 well. For example, if the recording paper supply position C is set, the tip of the right side of the recording paper 108 enters the upper portion of the lower recording paper guide plate 122, and jams may occur in the ink cassette 2.

In addition, the printer apparatus of the fourth embodiment is configured such that all of the recording paper supply trays 104, 106 and the recording paper discharge storing portion 302 can store approximately 25 recording papers 108. As shown in FIG. Then, the recording sheet discharging unit in the recording sheet discharging mechanism of the fourth embodiment does not require the conventional recording sheet discharging tray and the recording sheet discharging roller made of rubber for conveying the recording sheet 108 to the recording sheet discharging tray. It is a big feature.

Next, the driving unit among the recording paper discharging unit and driving unit constituting the recording paper discharging mechanism of the printer apparatus of the fourth embodiment will be described below.

FIG. 37 is a front view showing the structure of the drive unit 96 in the recording paper discharging mechanism of the printer device of the fourth embodiment shown in FIG. 30, and the plan view thereof is shown in FIG. 37 and 38, the drive cam 422 supported by the camshaft 418 is connected to the worm gear (B) 424 and the two-stage idler gear (C) 426 by the cam motor 421. Driven through. The drive cam 422 can take six stop positions corresponding to seven types of operation modes described later (two of the seven types of operation modes become the same stop position).

The six position detections include a position detection plate 428 in which a predetermined slit is formed corresponding to each stop position and rotates integrally with the drive cam 422, and a position detection auto sensor disposed at a position opposite thereto. 432, and a micro switch (not shown) that causes origin detection. The drive cam 422 rotates the recording paper discharge auxiliary lever 306 about the point C9 via the projection T9 fitted to the cam groove (not shown), and the recording paper discharge auxiliary lever 306. Through the pin (P9) to be fitted to the notch groove (M8) provided in the), the recording paper discharge lever 300 in the range from the position of the solid line to the position of the two-dot chain line (virtual line) around the point (C8) Rotationally driven.

Next, the operation mode of the printer apparatus of the fourth embodiment will be described in order to show the relationship between the recording sheet discharging unit and the driving unit 96 and the recording sheet supplying unit and the recording sheet conveying unit which constitute the recording sheet discharging mechanism.

There are seven types of operation modes of this printer apparatus, which are standby, recording paper ejection, ink sheet release prevention, recording paper supply, recording paper conveyance, ink sheet conveyance, and printing. The drive cam 422 described above is configured to have six stop positions as described above corresponding to these seven types of operation modes. Each of these seven operation modes is demonstrated below.

(Standby mode)

The ink cassette 2 shown in Figs. 30, 31 and 32 is in a removable state. In addition, the thermal head unit 26 is once higher (standby position E) in FIG.

In the printer device of the fourth embodiment, the ink cassette 2 is configured to be attached or detached in the direction perpendicular to the drawing indicated by the arrow Y1 in FIG.

(Recording Paper Supply Mode)

The conveying motor 400 shown in FIG. 37 is driven in reverse rotation, and as shown in FIG. 34, the carriage 210 at an arbitrary position moves to the release position, and the recording paper 108 is a recording paper supply roller of the recording paper supply unit. It is conveyed inside the main body by 110. First, the carriage 210 reaches the release position, and the pressing members 218 and 220 have the recording paper 108 reaching in the released state (the carrier motor 400 is driven in reverse rotation). Since the pressing members 218 and 220 remain in the released state).

When the recording paper 108 reaches the position shown in Fig. 34, the recording paper position detection sensor (not shown) is activated, the conveying motor 400 is converted to the forward rotation drive, and the carriage 210 is moved outward in the drawing. It moves to and reaches the start position shown in FIG. When the carriage 210 reaches this start position, as shown in Fig. 35, the pressing members 218 and 220 move the tip of the recording paper 108 rotated by the compression springs 232 and 234. Clamp. In the meantime, the thermal head unit 26 is in the recording paper supply position C shown in FIG.

(Ink sheet transfer mode = Ink sheet export =)

Extrusion of the ink sheet 12 is performed in this ink sheet conveyance mode. In this mode, the ink sheet 12 is conveyed by the forward rotation of the conveying motor 400 shown in FIG. 37 until the stroke marker (not shown) is detected via the drive part 96. At this time, since the drive system is cut off, the carriage 210 moves to the left in FIG. 34 while clamping the recording paper 108 to reach the start position shown in FIG. In the meantime, the thermal head unit 26 is in the recording paper sheet transfer position B shown in FIG.

(Recording paper conveyance mode = the 1 =)

As described above, when the carriage 210 is stopped at the position shifted from the start position shown in Fig. 35, the carriage 210 is moved back to the start position in this recording paper conveyance mode. In this case, since the idler gears (A) 408 shown in FIG. 37 and FIG. 38 are in a neutral position, the ink sheet 12 is not driven. The thermal head unit 26 is similarly located at the recording paper sheet transfer position B shown in FIG. Moreover, in the thickness of the ink sheet 12, when the conveyance amount is more than a predetermined amount, the said operation is repeated several times.

(Print Mode)

Next, while energizing the thermal head 22, the carriage 210 is moved from the start position shown in FIG. 35 to the end position shown in FIG. At this time, the recording sheet 108 and the ink sheet 12 are driven together, and first, a yellow image is printed on the surface of the recording sheet 108. When the carriage 210 reaches the end position, the printing of the first color (yellow) is completed. In the meantime, the thermal head unit 26 is in the print position shown in FIG.

(Ink Sheet Unlocking Mode)

In order to prevent loosening of the ink sheet 12 due to the positional rise of the thermal head unit 26, the ink sheet 12 is wound up. In the meantime, the thermal head unit 26 is the recording paper supply / sheet release prevention position D shown in FIG.

(Record sheet eject mode)

Next, in the discharge mode, the recording paper 108 is driven from the end position shown in FIG. 36 to the release position shown in FIG. 34, whereby the clamps by the pressing members 218 and 220 are released, and the recording paper discharge is further performed. Is sent to the recording paper discharging storing unit 302 by the unit (a description thereof will be omitted). In the meantime, the thermal head unit 26 is in the recording paper discharge / sheet release prevention position D shown in FIG. This completes a series of print operations.

As described above, after the end of the printing, the recording sheet discharge lever 300 in the recording sheet discharging mechanism is rotated and moved while the recording sheet 108 burns the left end on the roller 72 on the drawing. The left end of the recording paper 108 is pressed by the discharge lever tip 304, and the recording paper 108 passes over the roller 72, and further, is located below the recording paper supply trays 104, 106 of the recording paper supply unit. The recording sheet 108, which has naturally fallen to the recording sheet discharging unit 302 at the bottom of the printer body, is conveyed to the recording sheet dispensing unit 302 and stored in the recording sheet discharging unit 302 to the outside of the printer body. Can be discharged.

In this way, the recording paper 108 which has finished printing can be discharged to the outside of the printer body as much as the recording paper discharging mechanism is constituted as described above, so that the configuration number can be further simplified by reducing the number of parts of the discharge mechanism. Also, as a whole of the printer apparatus, the configuration can be simplified and inexpensively reduced in size and thinned.

As shown in Fig. 32, the recording paper is completed by arranging the recording paper supply trays 104, 106 of the recording paper supply unit so as to be inclined from the horizontal plane, and the recording paper discharged from the recording paper discharge storage unit 302 to the outside of the printer body ( 108) The image on the image becomes easy to see, and the print image can be easily checked in the discharged state.

Operation mode Idler Gears (A) Standby mode Neutral position Paper feed mode Recording paper feed roller drive position Print Mode Winding reel driving position

Operation mode Head position Idler Gears (A) Carriage Movement Direction Paper feed mode neutrality Recording paper feed roller drive position tablet Record Paper Transfer Mode The middle child Neutral position Tablet station Print Mode lowest rank Winding reel driving position tablet

Claims (13)

A printer apparatus for printing a recording on a recording paper which is a recording medium, comprising: a recording paper supply mechanism for feeding the recording paper by supplying the recording paper into the printer main body, wherein the recording paper supply mechanism accommodates the recording paper. A recording sheet supplying roller and a recording sheet supplying roller for conveying the recording sheet by means of the rotational contact with the recording sheet housed in the storage means, and when the recording sheet has a plurality of sheets; And a pressing means for always pressing the recording paper on the recording paper supply roller so as to be in rotational contact with the recording paper supply roller, and the recording paper is transported by the rotational contact with the recording paper to the recording paper and fed into the printer body. Printer device. The recording sheet supplying roller according to claim 1, wherein the pressing means supports the storage means freely by the rotational movement with respect to the printer body, and the recording paper supply rollers are driven by the moment generated in the weight of the storage means and the recording paper around the support portion. And a support means for always pressing the recording paper. 3. The motor according to claim 1 or 2, further comprising: a motor for applying power for recording paper conveyance to the recording paper supply roller, transfer means for transmitting power for transporting recording paper from said motor to said recording paper supply roller, and said conveying means. And a selection means capable of converting the operating position for transmitting the power to the recording paper supply roller and the non-operation position for interrupting the power, wherein the recording means conveyed and supplied by the recording paper supply roller And switching the transfer means to an inoperative position after reaching the predetermined position of the recording paper conveying means for receiving the recording paper and conveying it at a constant speed during printing. A printer apparatus for printing a recording on a recording paper which is a recording medium, comprising: a recording paper conveying mechanism for conveying the recording paper back and forth when printing the recording paper in the printer body, the recording paper conveying mechanism holding a leading end of the recording paper; Further, a carriage means for reciprocating the recording paper, guide means for supporting the carriage means to guide the reciprocating conveying operation during the reciprocating conveyance operation of the recording means, and the carriage means for the reciprocating conveying operation. A printer comprising substantially one set of driving means for driving the apparatus and a power means for applying power to the driving means, wherein the driving means is arranged at approximately the center of the width direction of the recording sheet. Device. 5. The printer apparatus according to claim 4, wherein the driving means is an integral lead screw, and the power means comprises a motor and transmission means for transmitting power of the motor to the lead screw. 5. The driving means according to claim 4, wherein the driving means comprises an integral timing belt and at least one timing pulley for supporting and driving the driving belt, and the power means comprises a motor and transmission means for transmitting power of the motor to the timing pulley. Printer apparatus characterized in that. A printer apparatus for printing a recording on a recording sheet which is a recording medium, comprising: a recording sheet conveying mechanism of a printer apparatus for conveying the recording sheet back and forth when printing the recording sheet in the printer body, wherein the recording sheet conveying mechanism is a front end portion of the recording sheet. Carriage means for holding the tip of the recording paper and holding the tip of the recording paper by the pressing member of the operating position, and the recording paper of the carriage means. In the reciprocating conveyance operation with respect to the guide means for supporting the carriage means to guide the reciprocating conveying operation, the carriage means, the power means for applying power to the drive means, and the power from the power means is applied Driven by the drive means, and the pressing member is moved from the operating position to the non-operating position. A printer device comprising a configuration including a release means that can be displaced. A printer apparatus for printing a recording on a recording paper, which is a recording medium, using an ink cassette provided therein with an ink sheet and two rods for supplying and winding the ink sheet, and inputting from the outside into the printer body. Based on the received information, the image corresponds to the recording sheet, and thermally transfers and prints the ink on the ink sheet, and a plurality of point heating elements are arranged in a substantially straight line, and the heat for the thermal transfer is performed. The thermal head means selectively generated from the plurality of heat generating elements corresponding to the image to be printed and rotated by the rotation axis in the same direction as the arrangement of the plurality of heat generating elements in the thermal head means during the printing; A roller for pressing a recording sheet and an ink sheet against the plurality of heating elements, and a bearing for holding the roller at both ends of its rotational axis. And a printing mechanism capable of mounting the ink cassette from a direction parallel to the rotational axis of the roller, wherein the printing mechanism includes a displacement mechanism configured to displace the thermal head means in a substantially vertical direction with respect to the arrangement of the heating elements. And the first positioning means at both ends of the arrangement of the heating elements in the thermal head means, and the second positioning means in the vicinity of the support of the roller. A printer configured to determine the positional relationship between the roller and the thermal head means by engaging the first positioning means and the second positioning means by the displacement of the thermal head means by the mechanism. Device. 9. The positioning means according to claim 8, wherein the first positioning means is a positioning shaft formed by protruding outward from both ends of the arrangement of the heating elements in the thermal head means. A printer device comprising a substantially V-shaped groove formed in the vicinity of a support portion of a roller. 10. The printer apparatus according to claim 9, wherein the positioning shaft formed as the first positioning means is formed integrally with the protection means of the drive circuit for driving the heat generating element of the thermal head means. A printer apparatus for printing a recording on a recording paper which is a recording medium, the printer comprising: a recording paper housed in a recording paper storage unit attached to a printer body, supplied from the recording paper storage unit to a printer body for printing, and conveyed back and forth in the printer body; And a recording paper discharge mechanism for discharging the recording paper on which the print recording has been completed, to the outside of the printer body, wherein the recording paper discharge mechanism includes: recording paper discharge lever means arranged to press an end portion of the recording paper on which the printing recording is completed; And a recording paper discharge storage portion for storing the recording paper whose end is pressed by the recording paper discharge lever means, and when the recording paper discharge lever means conveys the recording paper on which the print recording is completed, to the recording paper discharge storage portion. A printer device, characterized in that configured to press the end of the. 12. The printer apparatus according to claim 11, wherein the recording sheet discharging portion is arranged below the recording sheet storing portion for storing the recording sheet. The recording paper storage portion according to claim 11 or 12, wherein the recording paper storage portion is attached to a printer body inclined with respect to a horizontal plane so that an end portion on the printer body side of the stored recording paper is lower than an end portion on the opposite side. And a recording sheet discharging storing portion disposed at a lower portion thereof.