JP2016190378A - Kind detection mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a kind detection mechanism capable of detecting multiple kinds of tape cartridges without using multiple electrical elements.SOLUTION: The kind detection mechanism comprises: a detected part 180 on which is mounted an electronic component including a capacitor 382, a reactive element; and a detector 51 which applies an AC signal with a different frequency to the detected part and measures an output signal from the detected part to determine the kind of a cartridge. The detected part 180 is mounted on a tape cartridge 100, and the detector 51 is mounted on a tape printer 1.SELECTED DRAWING: Figure 13

Description

  The present invention relates to a type detection mechanism that detects the type of a tape cartridge mounted in a tape printer.

  Conventionally, a detection mechanism for detecting the type of a process cartridge (toner cartridge) mounted on an electrophotographic image forming apparatus is known as this type of type detection mechanism (see Patent Document 1). The process cartridge includes an electrophotographic photosensitive member, a charging unit, a developing unit, and a cleaning unit, and is detachably mounted on a cartridge mounting unit of the electrophotographic image forming apparatus. Different resistors, capacitors, and coils are mounted on the process cartridge for each process cartridge for individual identification of the process cartridge. On the other hand, the electrophotographic image forming apparatus is provided with measuring means for measuring the resistance of the resistor, the capacitance of the capacitor, and the inductance of the coil. Then, when the process cartridge is mounted on the electrophotographic image forming apparatus, the contact on the process cartridge side connected to the resistor or the like and the contact on the electrophotographic image forming apparatus side connected to the measuring means are conducted. That is, Patent Document 1 discloses a technique for detecting the type of a process cartridge by changing the eigenvalues of electric elements provided between terminals (contact points).

JP 2000-162929 A

  In such a conventional detection mechanism, eigenvalues of electrical elements such as resistors must be read separately, and high precision (particularly resolution) is required for the measuring means. In addition, in order to identify a large number of process cartridges, there is a problem that a large number of electric elements having different eigenvalues must be prepared.

  An object of the present invention is to provide a type detection mechanism that can identify the types of many tape cartridges without using a large number of electric elements.

  The type detection mechanism of the present invention is a type detection mechanism for detecting the type of a tape cartridge mounted on a tape printing apparatus, and includes a detected part on which an electronic component including a reactance component element is mounted, and an AC signal on the detected part. And a detection unit that determines the type of cartridge by measuring an output signal from the detection unit, and the detection unit is mounted on the tape cartridge, and the detection unit is mounted on the tape printer. It is characterized by being.

  In this case, the detected part preferably has a parallel circuit of a reactance component element and an element having no reactance.

  According to these configurations, it is possible to detect a large number of types of cartridges with a small number of detection terminals by utilizing the fact that the impedance of the reactance component element differs between direct current and alternating current.

  In this case, it is preferable to form a non-conductive portion in a part of the parallel circuit of the reactance component element and the element having no reactance so that the type of the tape cartridge can be identified.

  According to this configuration, attribute information of an individual tape cartridge can be easily configured from a parallel circuit of reactance component elements and elements having no reactance.

  On the other hand, the detected part preferably has a filter circuit.

  In this case, it is preferable that the type of cartridge can be identified by associating a constant that determines the characteristics of the filter circuit with attribute information.

  According to these configurations, it is possible to easily configure the attribute information of the individual tape cartridge by determining the constant that determines the characteristics of the filter circuit.

It is an external appearance perspective view of the open state of the tape printer concerning an embodiment. It is the top view (a) and side view (b) of the tape cartridge which concern on embodiment. It is a top view of a cartridge mounting part. It is the perspective view which looked at the opening-and-closing lid from the back side. FIG. 2A is a plan view of the tape cartridge with the upper case and the upper case removed, and FIG. It is the perspective view which looked at the tape cartridge from the back side. It is a perspective view of a cartridge mounting part. It is a perspective view of the lower case of a tape cartridge. FIG. 6 is an enlarged cross-sectional view around the detection unit and the detected unit with the tape cartridge mounted on the cartridge mounting unit. It is a perspective view of an insulating holder and the conductive contact held by this. It is the perspective view (a) of a wiring pattern board | substrate and a board | substrate cover, and its disassembled perspective view (b). It is a perspective view of a wiring pattern board. It is explanatory drawing of a wiring pattern board | substrate and a detection circuit. It is explanatory drawing which matched the wiring pattern board | substrate and identification information. It is explanatory drawing of the board | substrate and detection circuit which concern on other embodiment. It is explanatory drawing of the circuit mounted in the board | substrate which concerns on other embodiment. It is explanatory drawing which matched the wiring pattern board | substrate which concerns on other embodiment, and identification information.

  Hereinafter, a type detection mechanism according to an embodiment of the present invention will be described together with a tape cartridge and a tape printer mounted thereon with reference to the accompanying drawings. This tape printing apparatus performs printing while feeding out a printing tape and an ink ribbon from a mounted tape cartridge, cuts a printed portion of the printing tape, and creates a label (tape piece).

[Outline of tape printer]
FIG. 1 is an external perspective view of a tape printer and a tape cartridge attached to the tape printer. As shown in the figure, the tape printer 1 includes an apparatus case 3 constituting an outer shell, a cartridge mounting part 5 to which a tape cartridge 100 is detachably mounted, and an opening / closing lid 7 for opening and closing the cartridge mounting part 5. It is equipped with. On the upper surface of the apparatus case 3, a cartridge mounting portion 5 is provided on the back side, a display 11 is provided in the center, and a keyboard 13 is provided on the front side. In the vicinity of the open / close lid 7, a finger hanging recess 15 is provided, and the open / close lid 7 is opened so as to spring up through the recess 15. A vertical tape discharge port 17 through which the printing tape 102 is discharged is provided on the side surface (left side surface) of the device case 3.

  Further, the tape printer 1 includes a printing mechanism unit 23 having a print head 21 erected on the cartridge mounting unit 5, a tape feeding mechanism unit 25 built in the back side space of the cartridge mounting unit 5, and a tape discharge port 17. And a tape cutting mechanism 27 built in the vicinity. The user inputs print information from the keyboard 13, confirms the print information on the display 11, and then executes printing by key operation. When printing is instructed, the tape feeding mechanism unit 25 is driven to cause the printing tape 102 and the ink ribbon 110 to run side by side, and printing by thermal transfer is performed by the printing mechanism unit 23. By this print feed, the print tape 102 is discharged from the tape discharge port 17, and when printing is completed, the tape cutting mechanism unit 27 is driven and the printed portion of the print tape 102 is cut off.

[Tape cartridge overview]
As shown in FIGS. 2 and 5, the tape cartridge 100 includes a tape roll 106 in which the printing tape 102 is wound around the tape core 104, and a ribbon roll 114 in which the ink ribbon 110 is wound around the feeding core 112. . The tape cartridge 100 also includes a take-up core 116 that winds up the used ink ribbon 110, and a platen roller that the print head 21 contacts with the ink ribbon 110 and the print tape 102 and sends the print tape 102 and the ink ribbon 110. 120 (platen). Further, the tape cartridge 100 includes a cartridge case 130 that accommodates the tape roll 106, the ribbon roll 114, the winding core 116, and the platen roller 120. Thus, the tape cartridge 100 of this embodiment has a so-called shell structure in which the outer shell is covered with the cartridge case 130.

  Further, the cartridge case 130 is formed with an insertion opening 134 into which the print head 21 is inserted when the tape cartridge 100 is attached to the tape printer 1. Further, the tape cartridge 100 includes a tape delivery port 138 that is formed in the cartridge case 130 and through which the printing tape 102 is delivered. Although details will be described later, the tape roll 106 is rotatably supported by a cylindrical core shaft portion 192 projecting from the inside of the cartridge case 130 (see FIG. 5A).

  When the platen roller 120 and the winding core 116 are driven by the tape feeding mechanism 25, the printing tape 102 is fed out from the tape core 104, and the ink ribbon 110 is fed out from the feeding core 112. The fed printing tape 102 and ink ribbon 110 run side by side at the platen roller 120 and are used for printing by the print head 21. The feeding end portion (printed portion) of the printing tape 102 on which printing has been performed is sent out from the tape delivery port 138 toward the tape discharge port 17. On the other hand, the ink ribbon 110 wraps around the peripheral wall portion of the insertion opening 134 and is wound around the winding core 116. The tape cartridge 100 is prepared with a plurality of types having different thicknesses according to the tape width of the printing tape 102.

[Details of tape printer]
As shown in FIGS. 1 and 3, the cartridge mounting portion 5 is formed in a planar shape complementary to the planar shape of the tape cartridge 100, and the tape cartridge having the maximum thickness among the plural types of tape cartridges 100 that can be mounted. A recess corresponding to 100 is formed. In this case, the mounting base 31 and the side plate portion 33 constituting the bottom plate portion of the cartridge mounting portion 5 are integrally formed (molded) with resin or the like. A slit-like tape discharge path 35 is formed between the cartridge mounting portion 5 and the tape discharge port 17, and the tape cutting mechanism portion 27 is built in this portion.

  Positioning in which the inner peripheral portion (concave portion) of the core shaft portion 192 (see FIG. 5) of the tape cartridge 100 is fitted and positioned on the mounting base 31 of the cartridge mounting portion 5 when the tape cartridge 100 is mounted. The protrusion 41 (convex portion), the print head 21 covered with the head cover 43, the platen drive shaft 45 that rotationally drives the platen roller 120, and the winding drive shaft 47 that rotationally drives the winding core 116 stand up. It is installed. The positioning protrusion 41 incorporates a detection unit 51 that detects the type (attribute information) of the tape cartridge 100 (details will be described later).

  On the other hand, the mounting base 31 located in the vicinity of the winding drive shaft 47 is provided with a core releasing portion 53 for releasing the rotation stop of the feeding core 112 and the winding core 116. In addition, the mounting base 31 is provided with a pair of small protrusions 55 at diagonal positions thereof, and in addition, a pair of latching pieces 57 for latching an intermediate portion of the tape cartridge 100 mounted.

  In the back space of the mounting base 31, the tape feeding mechanism 25 having a motor and a gear train (both not shown) for rotating the platen drive shaft 45 and the take-up drive shaft 47 is incorporated. The tape feeding mechanism 25 divides the power by a gear train and rotates the platen drive shaft 45 and the winding drive shaft 47 synchronously. Although not shown in the figure, a control circuit in which a detection circuit connected to the detection unit 51 and a control circuit for controlling the printing mechanism unit 23 and the tape feeding mechanism unit 25 are mounted in the back space of the keyboard 13. The board is built-in.

  The print mechanism unit 23 includes a print head 21 formed of a thermal head, a head support frame 61 that supports and rotates the print head 21, and a print position and a retracted position of the print head 21 via the head support frame 61. And a head cover 43 that covers the print head 21 (and the head support frame 61).

  The head release mechanism operates in conjunction with the opening / closing of the opening / closing lid 7, moves (rotates) the print head 21 to the printing position in conjunction with the closing operation of the opening / closing lid 7, and prints in conjunction with the opening operation. The head 21 is moved (turned) to the retracted position. The print head 21 that has moved to the printing position contacts the platen roller 120 of the tape cartridge 100 via the ink ribbon 110 and the printing tape 102, and the print head 21 that has moved to the retracted position moves away from the platen roller 120. Thereby, when the tape cartridge 100 is attached or detached, interference of the print tape 102 or the ink ribbon 110 with the print head 21 is prevented.

  The print head 21 is provided with a plurality of heating elements, and the plurality of heating elements are arranged in the same direction as the axial direction of the platen roller 120. Then, printing is performed by feeding the printing tape 102 and the ink ribbon 110 and selectively driving a plurality of heating elements. The head cover 43 is formed in a substantially rectangular shape in plan view, and is formed (molded) integrally with the mounting base 31 (cartridge mounting portion 5). The head cover 43 protrudes greatly from the mounting base 31 in a vertical direction, allows the print head 21 to turn inside, and functions as a mounting guide for the tape cartridge 100 on the outside.

  Although details will be described later, the detection unit 51 includes a plurality of conductive contacts 51a. The detecting unit 51 selectively conducts to the detected unit 180 of the tape cartridge 100 and mainly detects the type (attribute information) of the tape cartridge 100 such as the tape width, tape color, and material of the printing tape 102. Based on the detection result, the driving of the print head 21 and the tape feeding mechanism 25 is controlled.

  The core releasing portion 53 is composed of two releasing pins 53 a for the feeding core 112 and the winding core 116. Although details will be described later, the cartridge case 130 is provided with a rotation-preventing hook 206 that is hooked on the feeding core 112 and the winding core 116, respectively (see FIG. 6). When the tape cartridge 100 is mounted, the release pin 53a is engaged with the rotation stop hook 206, and the rotation stop of the feeding core 112 and the take-up core 116 is released.

  The platen drive shaft 45 includes a fixed shaft 45a provided so as to pass through the platen roller 120, and a spline-shaped movable shaft 45b rotatably supported on a base portion of the fixed shaft 45a. The rotational power of the tape feeding mechanism 25 is transmitted to the movable shaft 45b, and further transmitted from the movable shaft 45b to the platen roller 120. Similarly, the winding drive shaft 47 includes a fixed shaft 47a and a spline-shaped movable shaft 47b that is rotatably supported by the fixed shaft 47a. Also in this case, the rotational power of the tape feeding mechanism 25 is transmitted to the movable shaft 47b, and further transmitted from the movable shaft 47b to the winding core 116.

  When the tape cartridge 100 is mounted on the cartridge mounting portion 5, the core shaft portion 192 (tape core 104) is engaged with the positioning protrusion 41 (see FIG. 9), the platen roller 120 is engaged with the platen drive shaft 45, and further winding is performed. The take-up core 116 engages with the take-up drive shaft 47. When the open / close lid 7 is closed, the print head 21 rotates and contacts the platen roller 120 with the print tape 102 and the ink ribbon 110 interposed therebetween, and the tape printer 1 enters a print standby state.

  As shown in FIGS. 1 and 4, the opening / closing lid 7 is attached to the apparatus case 3 so as to be rotatable, that is, to be opened and closed, via a hinge portion 71 provided on the back side. The opening / closing lid 7 has an opening / closing lid body 73 and a viewing window 75 provided at the center of the opening / closing lid body 73. The open / close lid 7 protrudes from the back surface of the open / close lid body 73 and is pivotally supported by the hinge portion 71 so as to be pivotally supported. And an actuating lever 79 for rotating the. Further, the opening / closing lid 7 protrudes on the back surface of the opening / closing lid body 73 and pushes the tape cartridge 100 into two push projections 81, and protrudes on the back surface of the opening / closing lid body 73, and has a built-in lid closing detection switch (not shown). And a pressing projection 83 for actuating (ON).

  The viewing window 75 is formed in a horizontally long shape and is made of a transparent (transparent to visible light) resin that is separate from the opening / closing lid main body 73. Through this viewing window 75, the tape cartridge 100 mounted on the cartridge mounting portion 5 can be visually recognized (type of printing tape 102 and remaining tape amount). Further, the pair of shaft support pieces 77, the operating lever 79, the two pushing projections 81 and the pushing projection 83, and the opening / closing lid body 73 are integrally formed (molded) with resin.

  The operating lever 79 protrudes greatly from the back surface of the opening / closing lid body 73 and is inserted into a slit opening 87 provided on the side of the cartridge mounting portion 5 when the opening / closing lid 7 is closed. The operating lever 79 inserted into the slit opening 87 operates the above-described head release mechanism and rotates the print head 21 toward the platen roller 120. Similarly, the pressing protrusion 83 is inserted into the rectangular opening 91 adjacent to the slit opening 87 as the opening / closing lid 7 is closed, and turns on the lid closing detection switch.

  One pushing projection 81 corresponds to a position near the platen roller 120 of the tape cartridge 100, and the other pushing projection 81 corresponds to a position directly above the detection unit 51. When the opening / closing lid 7 is closed, the two pushing protrusions 81 push the tape cartridge 100 so that the tape cartridge 100 is seated on the mounting base 31 of the cartridge mounting portion 5 and prevent the tape cartridge 100 from being lifted.

[Details of tape cartridge]
Next, the tape cartridge 100 will be described in detail with reference to FIGS. 2, 5, and 6. In the description of the tape cartridge 100, taking FIG. 2 as an example, the front surface on the front side of the tape cartridge 100 in the mounting direction is “front surface”, the reverse side in the mounting direction is “back surface”, and the left side. The left side surface is referred to as the “left side surface”, the right side surface as the “right side surface”, the upper arc-shaped side surface as the “front end surface”, and the lower side surface as the “base end surface”.

  As described above, the tape cartridge 100 includes the cartridge case 130 and the tape roll 106, the ribbon roll 114, the winding core 116, and the platen roller 120 accommodated therein. Further, the tape cartridge 100 includes an insertion opening 134 formed in the cartridge case 130, a tape outlet 138 formed on the left side in the vicinity of the platen roller 120, the surface of the part in which the tape roll 106 is accommodated, the left side, And an identification seal 141 (see FIG. 1) attached over the right side surface. On the identification seal 141, the tape width, tape color, material, and the like (part of attribute information) of the accommodated printing tape 102 are displayed at two locations on the front surface and the left side surface.

  The cartridge case 130 constitutes an outline of the tape cartridge 100 (shell structure), and has an “L” -shaped appearance in plan view with the proximal end side of the right side surface protruding somewhat. In the front and back direction, the cartridge case 130 has a lower case 150 that is the back side when mounted on the cartridge mounting portion 5 and an upper case 152 that is the front side. In the cartridge case 130 of the embodiment, the upper case 152 is formed of a transparent resin molded product, and the lower case 150 is formed of an opaque resin molded product.

  The upper case 152 is integrally formed (molded) with a top wall portion 156 that forms the surface of the cartridge case 130 and an upper peripheral wall portion 158 that is suspended from the peripheral edge of the top wall portion 156. The lower case 150 includes a bottom wall portion 160 constituting the back surface of the cartridge case 130, a lower peripheral wall 162 erected on the periphery of the bottom wall portion 160, and a bottom wall portion so as to define the insertion opening 134. And an opening peripheral wall portion 164 erected on 160.

  A plurality of joining pins 170 are provided at appropriate intervals on the lower end surface of the upper peripheral wall portion 158 in the upper case 152, while a plurality of joining pins corresponding to the plurality of joining pins 170 are provided on the lower peripheral wall 162 of the lower case 150. A hole 172 is provided (see FIG. 5). After setting components such as the tape roll 106 and the ribbon roll 114 in the lower case 150, the upper case 152 is joined so that the plurality of joining pins 170 are press-fitted into the plurality of joining holes 172. Assembled. Each joint hole 172 is a through hole in consideration of ease of molding.

  On the other hand, on the left side surface and the right side surface of the lower case 150, a pair of latch receiving portions 174 that are latched by the pair of latch pieces 57 are provided (see FIGS. 2 and 6). The pair of latching pieces 57 on the cartridge mounting unit 5 side are latched on the pair of latching receiving portions 174 of the mounted tape cartridge 100, thereby preventing the tape cartridge 100 from being lifted. Further, a fitting small hole 176 into which the pair of small protrusions 55 are fitted with some margin is provided on the back surface of the lower case 150 (see FIG. 6). When the pair of small projections 55 on the cartridge mounting portion 5 side are fitted into the pair of fitting small holes 176 of the mounted tape cartridge 100, the tape cartridge 100 is simply positioned on the mounting base 31.

  As shown in FIG. 5, a tape storage area 190 in which the tape roll 106 is widely stored is configured in the upper space (tip surface side) in the cartridge case 130. A core shaft portion 192 that is integrally formed (formed) with the lower case 150 is erected in the center of the tape housing area 190. The core shaft portion 192 is formed in a cylindrical shape, and a tape roll 106 (tape core 104) is rotatably supported on the outer peripheral surface 192b. That is, the core shaft portion 192 is located on the inner peripheral side of the tape roll 106 when viewed from the core axis direction. Although details will be described later, the core shaft portion 192 incorporates a spring 193 for preventing reverse rotation of the tape roll 106 formed of a coil spring.

  Further, a detected portion 180 corresponding to the detecting portion 51 is provided on the inner peripheral portion of the core shaft portion 192 (see FIG. 6). Although details will be described later, the detected portion 180 includes a wiring pattern substrate 324 corresponding to the plurality of conductive contacts 51 a of the detecting portion 51. The detection unit 51 acquires the attribute information of the tape cartridge 100 by detecting the wiring pattern substrate 324.

  Further, a tape guide 194 that guides the fed printing tape 102 to the platen roller 120 is erected integrally with the lower case 150 in the tape accommodating area 190 located in the vicinity of the platen roller 120. That is, inside the cartridge case 130, a tape feed path 196 starting from the tape roll 106 and passing through the tape guide 194 and the platen roller 120 to the tape feed outlet 138 is configured. The printing tape 102 fed out from the tape roll 106 is guided to the platen roller 120 through the tape guide 194, used for printing, and further guided from the platen roller 120 to the tape delivery port 138.

  The tape roll 106 includes a printing tape 102 and a tape core 104 and two circular films 198 attached to both end faces of the roll-shaped printing tape 102. The two circular films 198 prevent the printing tape 102 wound around the tape core 104 from being scattered.

  The tape core 104 has a reel portion 104a around which the printing tape 102 is wound, and a rolling contact portion 104c provided via a plurality of inward ribs 104b inside the reel portion 104a. The core shaft 192 is rotatably supported. A plurality of radial end face grooves 104d are formed on the end face of the rolling contact portion 104c, and the above-described reverse rotation prevention spring 193 is engaged with and disengaged from the end face groove 104d. That is, a longitudinal slit 192a extending in the axial direction is formed at the upper portion of the core shaft portion 192, and the end of the wire rod of the reverse rotation preventing spring 193 protrudes from the longitudinal slit 192a and is engaged with the end face groove 104d of the rolling contact portion 104c. Match.

  When carrying the tape cartridge 100, the reverse rotation preventing spring 193 prevents the reverse rotation of the tape roll 106 (printing tape 102). On the other hand, when the tape cartridge 100 is mounted on the cartridge mounting portion 5, the positioning protrusion 41 compresses the reverse rotation preventing spring 193 (see FIG. 9), and the end of the wire rod is detached from the end surface groove 104d of the rolling contact portion 104c. Then the reverse stop is released. As a result, the printing tape 102 can be fed.

  On the right side of the base in the cartridge case 130, a ribbon accommodating area 200 is formed adjacent to the insertion opening 134. On the right side of the ribbon receiving area 200, a feeding side bearing portion 202 that rotatably supports the ribbon roll 114 (feeding core 112) is provided, and on the left side, a winding side bearing portion that rotatably supports the winding core 116 is provided. 204 are formed integrally with the cartridge case 130, respectively. That is, the feeding side bearing portion 202 and the winding side bearing portion 204 are formed on the upper case 152 and the lower case 150, respectively.

  At the notch portions of the feeding side bearing portion 202 and the take-up side bearing portion 204 formed in the lower case 150, the rotation prevention hook 206 with the tip portion facing the feeding side bearing portion 202 and the take-up side bearing portion 204 is provided. Are integrally formed. One rotation stop hook 206 is engaged with the feeding core 112, and the other rotation stop hook 206 is engaged with the winding core 116 in a rotation stopped state.

  A first ribbon guide 210 that guides the fed ink ribbon 110 to the platen roller 120 is erected integrally with the lower case 150 in the ribbon accommodating area 200 located in the vicinity of the feeding side bearing portion 202. A plurality of second ribbon guides 212 that guide the circumference of the ink ribbon 110 are integrally formed on the outer peripheral side of the opening peripheral wall portion 164.

  That is, inside the cartridge case 130, a ribbon feed path 214 starting from the ribbon roll 114, passing through the first ribbon guide 210, the platen roller 120, and the plurality of second ribbon guides 212 to the winding core 116 is configured. Yes. The ink ribbon 110 fed out from the ribbon roll 114 is guided to the platen roller 120 through the first ribbon guide 210 and used for printing, and further from the platen roller 120 to the opening peripheral wall 164 (a plurality of second ribbon guides). 212) is wound around the winding core 116.

  The ribbon roll 114 includes an ink ribbon 110 and a feeding core 112, and an annular leaf spring 220 that applies a braking load to the feeding core 112 (see FIG. 5B). The leaf spring 220 is formed in a wave shape in the circumferential direction, and is interposed between the top wall portion 156 of the upper case 152 and the feeding core 112 in the axial direction. That is, a rotational braking load is applied to the feeding core 112 by the elastic force of the leaf spring 220. As a result, the back tension is applied to the ink ribbon 110 fed out by the take-up core 116, and the slack is prevented.

  The feeding core 112 is formed in a cylindrical shape, and a plurality of notches 222 are formed in the circumferential direction at the end portion on the lower case 150 side (see FIG. 6). The rotation stop hook 206 is engaged with and disengaged from the plurality of notches 222. The feeding-side bearing portion 202 on the lower case 150 side that supports the feeding core 112 is configured with a circular opening, whereas the feeding-side bearing portion 202 on the upper case 152 side is configured with a cylindrical protruding portion. Yes. And the said leaf | plate spring 220 is mounted | worn with this protrusion part (all refer FIG.5 (b)).

  Similarly, the winding core 116 is formed in a cylindrical shape, and a plurality of notches 224 are formed in the circumferential direction at the end portion on the lower case 150 side. The rotation stop hook 206 is engaged with and disengaged from the plurality of notches 224. A spline groove 226 is formed on the inner peripheral surface of the winding core 116 and engages with the winding drive shaft 47 by spline. Thereby, the rotational force of the winding drive shaft 47 is transmitted to the winding core 116, and the ink ribbon 110 is wound up.

  A platen accommodation area 230 is formed adjacent to the insertion opening 134 on the left side of the base in the cartridge case 130. In the center of the platen accommodation area 230, there are an oval opening lower bearing portion 234 formed in the lower case 150 (see FIG. 6) and an oval opening upper bearing portion 232 formed in the upper case 152 (see FIG. 5B). )) Is provided. The platen roller 120 is supported by the upper bearing portion 232 and the lower bearing portion 234 so as to be rotatable and slightly laterally movable. That is, the platen roller 120 supported by the elliptical upper bearing portion 232 and the lower bearing portion 234 has a home position that engages with the platen drive shaft 45 and a sandwich position that sandwiches the printing tape 102 and contacts the tape guide 194. It is configured to be capable of lateral movement (small movement).

  By the way, the tape cartridge 100 is carried in a state in which the feeding end portion of the printing tape 102 is slightly protruded to the outside from the tape delivery port 138 (see FIG. 1). At that time, if a pressing force or a pulling force acts on the feeding end portion of the printing tape 102 by mistake, the platen roller 120 dragged by this moves to the clamping position. Thereby, the feeding end portion of the printing tape 102 is prevented from being drawn into the cartridge case 130 from the tape delivery port 138.

  The platen roller 120 has a cylindrical roller base 240 and a rubber roller 242 attached to the outer peripheral surface of the roller base 240. The rubber roller 242 has a length corresponding to the print head 21 in the axial direction, and the print head 21 that has moved to the print position sandwiches the print tape 102 and the ink ribbon 110 and contacts the rubber roller 242. A spline groove 244 is formed on the inner peripheral surface of the roller base 240 and engages with the platen drive shaft 45 by spline. Thereby, the rotational force of the platen drive shaft 45 is transmitted to the platen roller 120, and the printing tape 102 (and the ink ribbon 110) is printed and fed.

[Details of detected part and detecting part]
Next, the structure around the detected portion 180 of the tape cartridge 100 will be described in detail together with the structure of the detecting portion 51 of the cartridge mounting portion 5 with reference to FIGS. 7 is a perspective view of the cartridge mounting portion 5, FIG. 8 is a perspective view of the lower case 150 of the tape cartridge 100, and FIG. 9 is a detection of a state in which the tape cartridge 100 is mounted on the cartridge mounting portion 5. FIG. 5 is an enlarged cross-sectional view around a part 51 and a detected part 180.

  As shown in these drawings, the positioning protrusion 41 (convex portion) of the cartridge mounting portion 5 is provided with a detection portion 51 composed of a plurality (four in the drawing) of conductive contacts 51a. It has been. On the other hand, a detected portion 180 is provided on the inner peripheral portion (concave portion) of the core shaft portion 192 of the tape cartridge 100 with respect to the detecting portion 51.

  As shown in FIGS. 7 and 9, the positioning protrusion 41 includes a first convex portion 300 on the distal end side and a second convex portion 302 on the proximal end formed in a large diameter with respect to the first convex portion 300. Have. The first convex portion 300 and the second convex portion 302 are integrally formed (molded), and the first convex portion 300 and the second convex portion 302 are integrally formed (molded) with the mounting base 31. The first convex portion 300 is formed in a cylindrical shape with the upper end closed, and fits into a first concave portion 320 of a core shaft portion 192 described later in a state where the tape cartridge 100 is mounted in the cartridge mounting portion 5. Further, by this fitting, the first convex portion 300 pushes up (compresses) the above-described reverse rotation preventing spring 193 whose one end is abutted against the upper case 152 (the top wall portion 156), and reversely rotates the tape roll 106. Release the stop.

  The second convex portion 302 is formed in a cylindrical shape, and is loosely fitted in a second concave portion 322 of a core shaft portion 192 described later in a state where the tape cartridge 100 is mounted on the cartridge mounting portion 5. The second convex portion 302 incorporates a detection unit 51 composed of four conductive contacts 51a. In addition, four slit openings 304 are formed in the second convex portion 302 so as to be evenly arranged in the circumferential direction. Each slit opening 304 extends in the axial direction, and four conductive contacts 51a protrude from the four slit openings 304 outward in the radial direction.

  As shown in FIGS. 9 and 10, the four conductive contacts 51a are attached to the insulating holder 308 fitted and mounted inside the second convex portion 302 in a state of being radially arranged (equally arranged in the circumferential direction). Is retained. The insulating holder 308 is formed with four holding grooves 308a so as to be evenly arranged in the circumferential direction. Each holding groove 308a extends in the axial direction of the detection unit 51, and four conductive contacts 51a are held in the four holding grooves 308a.

  Each of the conductive contacts 51a is made of a conductive metal wire having a spring property, and bends from the straight portion 310 held in the holding groove 308a and the upper end of the straight portion 310 and extends in a “<” shape. Contact body 312. And this contactor main body 312 bends and the bending top part 312a contacts the contact terminals 370a-370d of the to-be-detected part 180 mentioned later. The straight section 310 is connected to the detection circuit 385 (see FIG. 13) that detects attribute information of the tape cartridge 100.

  In a state where the tape cartridge 100 is mounted on the cartridge mounting portion 5, the conductive contact 51 a and the detected portion 180 are in positions facing each other, and the conductive contact 51 a has a spring force toward the detected portion 180. The conductive contact 51a and the detected portion 180 are elastically engaged. The four conductive contacts 51a are arranged in symmetrical positions. Therefore, in the detected part 180 that receives the spring force, the spring forces of the four conductive contacts 51a cancel each other. As a result, the tape cartridge 100 receives the spring force of the conductive contact 51a via the detected portion 180, but does not cause a positional shift.

  The conductive contact 51a may be a band-shaped metal material having spring properties. The spring force of the conductive contact 51a can also have a function of fixing the tape cartridge 100 in the core shaft portion 192. By fixing the core shaft portion 192 which is the center of gravity of the tape core 104 around which the printing tape 102 having the heaviest weight is wound among the components such as the printing tape 102 and the ink ribbon 110 housed in the tape cartridge 100, The positional deviation of the tape cartridge 100 during the printing operation can be effectively suppressed.

  As shown in FIGS. 8 and 9, the core shaft portion 192 of the tape cartridge 100 includes a first concave portion 320 on the distal end side corresponding to the first convex portion 300 and a base corresponding to the second convex portion 302. And a second recess 322 on the end side. The first recess 320 and the second recess 322 are integrally formed (molded), and the first recess 320 and the second recess 322 are integrally formed (molded) with the lower case 150 (bottom wall portion 160). Yes. The second recess 322 is formed with a large diameter with respect to the first recess 320.

  The first recess 320 is formed in a cylindrical shape, and the tape core 104 is rotatably engaged with the outer peripheral portion on the base side. Further, the upper end of the first recess 320 reaches the vicinity of the upper case 152 (the top wall portion 156), and the above-described reverse rotation prevention spring 193 is inserted and set in the inner peripheral portion of the first recess 320. (See FIG. 9). In the state where the tape cartridge 100 is mounted on the cartridge mounting portion 5, the first convex portion 300 is fitted to the inner peripheral portion on the base side of the first concave portion 320. As a result, the tape cartridge 100 is positioned on the first convex portion 300, that is, the cartridge mounting portion 5 via the first concave portion 320.

  The second concave portion 322 is formed in a cylindrical shape, and a detected portion 180 constituted by the wiring pattern substrate 324 and a substrate cover 326 that covers the wiring pattern substrate 324 are incorporated in the inner peripheral portion thereof. (See FIG. 9). In this case, the wiring pattern substrate 324 is disposed so as to be sandwiched between the outer peripheral surface of the substrate cover 326 and the inner peripheral surface of the second recess 322. The substrate cover 326 is attached to the second recess 322 in a snap-in manner.

  As shown in FIGS. 9 and 11, the substrate cover 326 is formed in a cylindrical shape, and four hooks 330 for snap-in are formed at the tip thereof. The four hooks 330 are arranged at equal intervals in the circumferential direction. Each hook 330 is integrally formed of a hook body 332 that protrudes outward and a hook spring portion 334 that supports the hook body 332. Further, the hook spring portion 334 is defined by two notch removing portions 336 formed so as to be cut from the tip of the substrate cover 326.

  On the other hand, corresponding to the four hooks 330, four hook receiving holes 340 (hook receiving portions) are formed at the distal end portion (the end portion on the first concave portion 320 side) of the second concave portion 322 (FIG. 8). reference). Each hook receiving hole 340 is formed to have substantially the same width as each hook 330 so that each hook 330 can be positioned in the circumferential direction. When the board cover 326 is inserted into the second recess 322 in a state where the four hooks 330 are aligned with the four hook receiving holes 340, each hook spring portion 334 is bent, and eventually each hook 330 is hook-received. It is locked so as to fall into the hole 340 (snap-in). As a result, the substrate cover 326 is attached to the second recess 322 in a retaining state.

  The substrate cover 326 has four through holes 344 corresponding to the conductive contacts 51a. Each through-hole 344 is formed in a slit shape and extends in the axial direction. Each through hole 344 is disposed at the position of the upper and lower intermediate portions of the substrate cover 326 in the axial direction and at the same position as each hook 330 in the circumferential direction. The conductive contact 51a facing the through hole 344 comes into contact with the contact terminals 370a to 370d of the wiring pattern substrate 324 described later (see FIG. 9).

  By the way, when the tape cartridge 100 is mounted on the cartridge mounting portion 5, the positions of the four conductive contacts 51a on the cartridge mounting portion 5 side, the positions of the four contact terminals 370a to 370d on the tape cartridge 100 side, Must always match in the circumferential direction. Similarly, the four conductive contacts 51a and the four through holes 344 need to match in the circumferential direction. For this reason, the circumferential positions of the four hooks 330 of the substrate cover 326 are restricted with respect to the four hook receiving holes 340 of the second recess 322.

  Therefore, in the present embodiment, in the circumferential direction, the positions of the four conductive contacts 51a, the positions of the four through holes 344, the positions of the four hooks 330, and the positions of the four hook receiving holes 340, Are arranged so as to match. Although details will be described later, four contact terminals 370a to 370d are arranged with reference to the positions of the four hooks 330 or the four hook receiving holes 340 (see FIG. 11B).

  The wiring pattern substrate 324 may be partially bonded to the outer peripheral surface of the substrate cover 326 with an adhesive or the like. In such a case, the adhesive layer on the back side is not necessary, and the wiring pattern substrate 324 can be easily attached to the second recess 322 together with the substrate cover 326.

  As shown in FIGS. 9 and 11, the base portion (lower side in the drawing) of the substrate cover 326 has a fitting protrusion 350 projecting annularly outwardly on the outer peripheral surface, and inwardly on the inner peripheral surface. Annular protrusions 352 that project in an annular shape are provided. The lower end (the lower side in the drawing) of the wiring pattern substrate 324 disposed outside the substrate cover 326 is brought into contact with the fitting protrusion 350. Further, the fitting protrusion 350 is fitted to the proximal end portion of the second recess 322 in a state where the substrate cover 326 is attached to the second recess 322. On the other hand, the protrusion dimension of the fitting protrusion 350 corresponds to the thickness of the wiring pattern substrate 324. As a result, the wiring pattern substrate 324 fits in a minute gap between the second recess 322 and the substrate cover 326 generated by the fitting protrusion 350 in a state where the lower end of the wiring pattern board 324 is in contact (positioned) with the fitting protrusion 350. It is like that.

  The annular protrusion 352 is a portion where the four conductive contacts 51a relatively get over while elastically deforming when the tape cartridge 100 is mounted on the cartridge mounting portion 5. In this case, the front end side and the base end side of the annular protrusion 352 are each formed in a chamfered shape. That is, an annular distal-side inclined surface 354 is formed on the distal end side of the annular protrusion 352, and an annular proximal-side inclined surface 356 is formed on the proximal end side.

  The base-side slope 356 smoothly elastically deforms the conductive contacts 51a when the conductive contacts 51a get over relatively. Further, the tip side inclined surface 354 gives a click feeling to the mounting of the tape cartridge 100 and prevents the mounted tape cartridge 100 from being lifted by using the spring force of each conductive contact 51a.

  Next, the wiring pattern substrate 324 constituting the detected part 180 will be described. As shown in FIGS. 9, 11, and 12, the wiring pattern substrate 324 is configured by an FPC (Flexible Printed Circuit) or the like, and is attached to the inner peripheral surface of the second recess 322.

  As shown in FIG. 13 and FIG. 14, in the developed wiring pattern substrate 324, a wiring pattern is formed on the front side, and an electronic component (in this case, a capacitor 382 and a reactance element) having an element having reactance (reactance component element: reactance element) A resistor 383) is mounted (see FIG. 13). An adhesive layer (not shown) is provided on the back side of the wiring pattern substrate 324. For this reason, the wiring pattern substrate 324 is bent in a cylindrical shape so that the front side is inside and the back side is outside, and is attached to the inner peripheral surface of the second recess 322. In actual sticking of the wiring pattern substrate 324 to the second recess 322, the wiring pattern substrate 324 is wound around the outer peripheral surface of the substrate cover 326, and attached to the second recess 322 together with the substrate cover 326 to adhere.

  The length of the wiring pattern substrate 324 is formed slightly shorter than the circumferential length on the inner peripheral surface of the second recess 322 so that the ends of the wiring pattern substrate 324 adhered to the second recess 322 do not overlap each other. (See FIG. 11A). In addition, four notch recesses 362 are formed in a portion of the wiring pattern substrate 324 corresponding to the four hook receiving holes 340 of the second recess 322, in other words, a portion corresponding to the four hooks 330 of the substrate cover 326. ing.

  The four notch recesses 362 are provided so as to escape the four hooks 330, but also function as reference positions for patterning the wiring pattern. Although details will be described later, the four contact terminals 370a to 370d in the wiring pattern are patterned so as to coincide with the positions of the four hooks 330 (four notch recesses 362) in the circumferential direction (see FIG. 13). ).

  Note that the wiring pattern substrate 324 is a sheet material such as paper or resin film printed on a wiring pattern using a conductive ink material, a metal film deposited on the sheet material on the sheet material, or a metal foil. It may be a substrate in which conductive wiring patterns and contact terminals 370a to 370d are provided flexibly on a base material, such as an insulating ink material printed while leaving a pattern.

  As shown in FIG. 13, the electronic component mounted on the wiring pattern substrate 324 includes an element (capacitor 382) having reactance. Then, for example, a hole 378 is formed in the base substrate 366 by laser processing or punch punching, and a part of the wiring portion is made non-conductive.

  That is, in the example of FIG. 13, two contact terminals 370 a and 370 b among the four contact terminals 370 a to 370 d are used for detecting attribute information for determining the type of the tape cartridge 100. A capacitor 382 is connected as an element having a reactance component between the wiring pattern 381a from the contact terminal 370a and the wiring pattern 381b from the contact terminal 370b. A resistor 383 is connected as an element having no reactance component between the wiring pattern 381c from the contact terminal 370a and the wiring pattern 381b from the contact terminal 370b.

  In some of the wiring patterns 381a to 381d, a hole 378 is formed according to the attribute information. In this case, four patterns are generated as shown in FIGS. FIG. 14A shows a pattern in which no hole 378 is formed in any of the wiring patterns 381a to 381d. FIG. 14B shows a pattern in which a hole 378 is formed in the wiring pattern 381a. FIG. 14C shows a pattern in which a hole 378 is formed in the wiring pattern 381c. FIG. 14D shows a pattern in which a hole 378 is formed in both the wiring pattern 381a and the wiring pattern 381c.

  As illustrated in FIG. 13, the detection circuit 385 includes a DC voltage source 386, an AC voltage source 387, a switching circuit 388, and a determination circuit 389. The detection circuit 385 is connected to the detection unit 51 of the tape printer 1. When the tape cartridge 100 is mounted on the cartridge mounting portion 5 of the tape printer 1, the conductive contact 51a on the cartridge mounting portion 5 side and the contact terminals 370a to 370d of the wiring pattern substrate 324 come into contact with each other and are electrically connected. . Thereby, the contact terminal 370a is connected to the switching circuit 388, and a DC voltage (frequency 0 Hz) or an AC voltage is applied to the contact terminal 370a from the DC voltage source 386 and the AC voltage source 387. The contact terminal 370b is connected to the determination circuit 389, and the determination circuit 389 measures the voltage of the contact terminal 370b.

  When the type of the tape cartridge 100 is determined, a DC voltage and an AC voltage are applied to the contact terminal 370a from the DC voltage source 386 and the AC voltage source 387 via the switching circuit 388. The output voltage of the contact terminal 370b is measured by the determination circuit 389. The determination circuit 389 detects the type of the tape cartridge 100 based on the measured value of the voltage at the contact terminal 370b when the DC voltage is applied and the measured value of the voltage at the contact terminal 370b when the AC voltage is applied.

  That is, in the case of the pattern shown in FIG. 14A, a parallel circuit of a capacitor 382 and a resistor 383 is connected between the contact terminal 370a and the contact terminal 370b. In this case, since the impedance of the capacitor 382 becomes infinite when a DC voltage is applied, the measurement value of the determination circuit 389 becomes a predetermined voltage determined by the resistance value of the resistor 383. When an AC voltage is applied, a predetermined value determined by the impedance of the parallel circuit of the capacitor 382 and the resistor 383 is obtained. Here, if the capacitance value (capacitance) of the capacitor 382 is selected to be sufficiently small at the frequency of the AC voltage from the AC voltage source 387, the measured value of the determination circuit 389 is the AC voltage source. It becomes approximately equal to the voltage of 387.

  In the pattern shown in FIG. 14B, only the resistor 383 is connected between the contact terminal 370a and the contact terminal 370b. In this case, the measured value of the determination circuit 389 is a predetermined voltage determined by the resistance value of the resistor 383, regardless of whether a DC voltage is applied or an AC voltage is applied.

  In the case of the pattern shown in FIG. 14C, only the capacitor 382 is connected between the contact terminal 370a and the contact terminal 370b. In this case, when a DC voltage is applied, the impedance of the capacitor 382 becomes infinite, and the measured value in the determination circuit 389 is substantially “0”. When an AC voltage is applied, the measurement value of the determination circuit 389 becomes a predetermined value determined by the impedance of the capacitor 382. Here, if the capacitance of the capacitor 382 is selected to be sufficiently small at the frequency of the AC voltage from the AC voltage source 387, the measured value of the determination circuit 389 is substantially equal to the voltage of the AC voltage source 387. Become. That is, since it is only necessary to determine whether or not the voltage of the AC voltage source 387 is substantially equal, the determination can be easily performed.

  In the case of the pattern shown in FIG. 14D, since the contact terminal 370a and the contact terminal 370b are disconnected, the measurement of the determination circuit 389 is performed both when a DC voltage is applied and when an AC voltage is applied. Both values are “0”.

  As described above, in the present embodiment, by utilizing the fact that the impedance of the element having reactance differs between direct current and alternating current, the wiring pattern includes the element having the reactance (capacitor 382), and the alternating voltage And DC voltage are used for detection. Thereby, a large number of attribute information can be detected with a small number of terminals.

  In the above example, the attribute information is expressed by forming a hole 378 in a part of the wiring patterns 381a to 381d, but the resistance value of the resistor 383 and the capacitance of the capacitor 382 are attribute information. You may make it differ in steps corresponding to.

[Another example of detected part and detection circuit]
Next, with reference to FIG. 15 and FIG. 16, another embodiment of the detected part and the detection circuit will be described. In this embodiment, three contact terminals 370a to 370c among the four contact terminals 370a to 370d disposed on the wiring pattern substrate 324A are used for detecting attribute information.

  As shown in FIG. 15, a resistor 393 is connected as an element having no reactance between the wiring pattern 391a from the contact terminal 370a and the wiring pattern 391b from the contact terminal 370b. A capacitor 394 is connected as an element having reactance between the wiring pattern 392a from the contact terminal 370b and the wiring pattern 392b from the contact terminal 370c. A resistor 395 is connected as an element having no reactance between the wiring pattern 392c from the contact terminal 370b and the wiring pattern 392d from the contact terminal 370c.

  The detection circuit 385A includes a variable AC signal source 396 and a determination circuit 397. The variable AC voltage source 396 can generate AC voltages having different frequencies. That is, in the variable AC voltage source 396, the contact terminal 370a is connected to the variable AC voltage source 396, and an AC voltage is applied to the contact terminal 370a. The contact terminal 370b is connected to the determination circuit 397, and the determination circuit 397 measures an output signal from the contact terminal 370b.

FIG. 16 shows a circuit configuration mounted on the wiring pattern substrate 324A shown in FIG. In FIG. 16, the node P ₁ corresponds to the contact terminal 370a, the node P ₂ corresponds to the contact terminal 370b, and the node P ₃ corresponds to the contact terminal 370c. As shown in FIG. 16, the circuit arrangement being mounted on the wiring pattern substrate 324A is between the node _{P 1} and node _{P 2,} resistor 393 is connected between the node _{P 2} and node _{P 3,} A capacitor 394 and a resistor 395 are connected. Node P ₃ is grounded. From node _{P 1,} the input voltage _{V in} from the variable alternating voltage source 396 is inputted. Then, the output voltage V _out from the node P ₂ is measured by the determination circuit 397.

Here, when the resistance value of the resistor 393 is R ₁ , the resistance value of the resistor 395 is R ₂ , the capacitance of the capacitor 394 is C ₁ , and the angular frequency is ω, the impedance between the node P ₂ and the node P ₃ Z is obtained as follows.

Here, the relationship between the input voltage V _in and the output voltage V _out is determined in the following manner.

  From the above equation, the amplitude characteristic can be obtained as follows.

From the equation (3), this circuit becomes a low-pass filter. The cutoff frequency of this circuit is (ω = (1 / C ₁ R ₁ )), and the constant that determines the frequency characteristics of this circuit is C ₁ R ₁ . Therefore, in correspondence with the constant C ₁ R ₁ and the attribute information determined from the capacitance C ₁ and resistance R ₁ Tokyo, while changing the frequency of the input voltage V _in, by measuring the output voltage V _out, the tape The type of the cartridge 100 can be determined.

That is, when the resistor 393, the resistor 395, and the capacitor 394 are disposed on the wiring pattern substrate 324A, the value C ₁ R ₁ between the resistance value R ₁ of the resistor 393 and the capacitance C _{1 of the} capacitor 394 corresponds to the attribute information. Set the value to Upon detection changes the frequency of the input voltage V _in from the variable AC voltage source 396, to measure the change in the output voltage V _out. Thereby, the frequency characteristic of a circuit is acquirable. The value C ₁ R ₁ between the resistance value R ₁ and the capacitance C ₁ can be determined from the measured frequency characteristics. Thereby, the identification information of the tape cartridge 100 can be detected.

When measuring the frequency characteristic determined from the capacitance C ₁ and the resistance value R ₁ , it is necessary to change the frequency of the variable AC voltage source 396. However, in order to determine the identification information, it is not necessary to change the frequency of the variable AC voltage source 396 in multiple stages. The frequency of the variable AC voltage source 396 only needs to be set to such an extent that the difference between the pass band and the cutoff band of the circuit can be identified (for example, three stages).

Further, from the equation (3), the voltage in the passband of this circuit is a value based on (R ₂ / (R ₁ + R ₂ )), and the constant that determines the gain in the passband is (R ₂ / (R ₁ + R ₂ )). Therefore, the voltage and the attribute information in the pass band determined by the resistance R ₂ of the resistance value R ₁ and the resistor 395 of the resistor 393 is associated, by measuring the voltage at the passband, determining attribute information can do.

That is, the wiring pattern substrate 324A, resistors 393 and 395, when arranging the capacitor 394, the resistance value _{R 2} and determined by the value of the resistance value _{R 1} and the resistor 395 of the resistor 393 _(R 2 _{/ (R} 1 + _{R 2} )) Is set to a value corresponding to the attribute information. Upon detection, it sets the frequency of the input voltage V _in from the variable AC voltage source 396 to the frequency of the pass band, measuring the output voltage V _out of _the passband. Thereby, the voltage in the pass band can be acquired. From the measured voltage of the passband, the resistance value _{R 2} and determined by the value of the resistance value _{R 1} and the resistor 395 of the resistor _{393 (R 2 / (R 1} + R 2)) can be determined, thereby, the attribute Information can be detected.

Further, the frequency characteristic determined from the value of the capacitance _{C 1} of the resistance value _{R 1} and the capacitor 394 of the resistor 393, the voltage at the passband determined by the resistance value _{R 2} Metropolitan resistance value _{R 1} and the resistor 395 of the resistor 393 By combining them, more attribute information can be determined. For example, if N types are set as the value of C ₁ R ₁ and N types are set as the value of (R ₂ / (R ₁ + R ₂ )), N ² types of attribute information are expressed from the combination. be able to.

  Here, the detection circuit 385A can be realized by, for example, a one-chip microcontroller. That is, a one-chip microcontroller incorporating an oscillation circuit and an A / D and D / A converter is known. If such a one-chip microcontroller is used, an AC voltage having a desired frequency is generated, the output voltage is A / D converted, and the output signal level is smoothed. It can be measured.

  Further, as shown in FIGS. 17A to 17B, identification information may be expressed by forming a hole 378 in a part of the wiring patterns 392 a to 392 d according to the attribute information. . FIG. 17A shows a pattern in which no hole 378 is formed in any of the wiring patterns 392a to 392d. FIG. 17B shows a pattern in which a hole 378 is formed in the wiring pattern 392a. FIG. 17C shows a pattern in which a hole 378 is formed in the wiring pattern 392c. FIG. 17D shows a pattern in which a hole 378 is formed in both the wiring pattern 392a and the wiring pattern 392c.

  That is, in the case of the pattern shown in FIG. 17A, when an AC voltage having a passband frequency equal to or lower than the cutoff frequency is applied to the contact terminal 370a, the measurement value of the determination circuit 397 is the resistance value R1 of the resistor 393. The voltage in the pass band is determined by the resistance value R2 of the resistor 395. When an AC voltage having a frequency equal to or higher than the cutoff frequency is applied to the contact terminal 370a, the measurement value of the determination circuit 397 is substantially “0”.

  In the case of the pattern shown in FIG. 17B, even when an AC voltage having a frequency equal to or higher than the cutoff frequency is applied to the contact terminal 370a, or when an AC voltage having a frequency equal to or lower than the cutoff frequency is applied to the contact terminal 370a, The measurement value of the determination circuit 397 is a voltage determined by the resistance value R1 of the resistor 393 and the resistance value R2 of the resistor 395.

  In the case of the pattern shown in FIG. 17C, when an AC voltage having a passband frequency equal to or lower than the cutoff frequency is applied to the contact terminal 370a, the measurement value of the determination circuit 397 is determined by the resistance value R1 of the resistor 393. It becomes the voltage in the region. When an AC voltage having a frequency equal to or higher than the cutoff frequency is applied to the contact terminal 370a, the measurement value of the determination circuit 397 is substantially “0”.

  In the case of the pattern shown in FIG. 17D, the measurement values of the determination circuit 397 are both “0” regardless of the frequency of the alternating voltage applied.

  Thus, since the capacitor is used as the element having reactance, the types of the tape cartridges 100 can be identified with an inexpensive and simple configuration. In the above example, a capacitor is used as an element having reactance, but a coil may be used. In addition, if a resonance circuit is formed by combining a coil and a capacitor, the frequency characteristics change greatly at a desired resonance frequency, and this can be used to identify the type of the tape cartridge 100. Further, in the examples of FIGS. 15, 16, and 17, a low-pass filter is configured on the wiring pattern substrate 324A using an element having reactance. However, a high-pass filter, a band-pass filter, and a band stop are used. A filter or the like may be configured.

  DESCRIPTION OF SYMBOLS 1 Tape printer, 3 Apparatus case, 5 Cartridge mounting part, 7 Opening / closing lid, 21 Print head, 23 Printing mechanism part, 25 Tape feed mechanism part, 31 Mounting base, 41 Positioning protrusion, 45 Platen drive shaft, 47 Winding Drive shaft, 51 detector, 51a conductive contact, 100 tape cartridge, 102 printing tape, 104 tape core, 106 tape roll, 110 ink ribbon, 120 platen roller, 130 cartridge case, 150 lower case, 152 upper case, 180 covered Detecting part, 192 core shaft part, 300 first convex part, 302 second convex part, 312 contact body, 320 first concave part, 322 second concave part, 324, 324A, 324B, 324C wiring pattern board, 326 board cover, 330 hook, 340 hook receiver 344 Through-hole, 352 annular projection, 354 tip side slope, 370a-370c contact terminal, 381a-381d, 392a-392d wiring pattern, 382, 394 capacitor, 383, 393 resistance, 385 detection circuit, 386 DC voltage source, 387 AC voltage source, 389, 397 judgment circuit, 396 variable AC voltage source

Claims (5)

A type detection mechanism for detecting the type of a tape cartridge installed in a tape printer,
A detected part mounted with a reactance component element;
A detection unit that applies an AC signal to the detected unit and measures an output signal output from the detected unit to determine the type of cartridge;
The type detection mechanism, wherein the detected portion is mounted on the tape cartridge, and the detection portion is mounted on the tape printer.   The type detection mechanism according to claim 1, wherein the detected part includes a parallel circuit of a reactance component element and an element having no reactance.   3. The type detection according to claim 2, wherein a type of the tape cartridge can be identified by forming a non-conductive portion in a part of a parallel circuit of the reactance component element and the element having no reactance. mechanism.   The type detection mechanism according to claim 1, wherein the detected part includes a filter circuit. 5. The type detection mechanism according to claim 4, wherein the type of the tape cartridge can be identified by associating a constant that determines characteristics of the filter circuit with attribute information.

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