JP2007230156A - Printer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely nip an ink ribbon and a printing medium by opposing a thermal head and a platen to each other. <P>SOLUTION: This printer comprises an ink ribbon cartridge holder 7 to which an ink ribbon cartridge 2 is mounted, a conveying mechanism 220 for printing paper 4, a driving mechanism 210 for the ink ribbon 10, the thermal head 140 which is provided to be displaced between a printing position in close contact with the ink ribbon 10 and a retracting position and is adapted to print an image on the printing paper 4, and a platen roller 155 which is provided to be in close contact with or separated from the thermal head 140 and nips the printing paper 4 and the ink ribbon 10 together with the thermal head 140. A slidable piece 150 which is slidably brought into contact with a shaft section 155a of the platen roller 155 at the printing position in order to improve the positional accuracy with respect to the platen roller 155 is attached to the thermal head 140. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a printer apparatus that accommodates an ink ribbon cartridge in which an ink ribbon is accommodated and thermally transfers a color material of the ink ribbon to a print medium by a thermal head.

  As a printer device that prints images and characters on a print medium, the color material that forms the ink layer provided on one side of the ink ribbon is sublimated, and the color material is thermally transferred to the print medium to print the color image and characters. There is a thermal transfer type printer device. This type of printer device includes a thermal head that thermally transfers a color material of an ink ribbon to a print medium, and a platen that is provided at a position facing the thermal head and supports the ink ribbon and the print medium.

  In such a printer device, the ink ribbon and the print medium are overlapped so that the ink ribbon is on the thermal head side and the print medium is on the platen side, and the thermal head is pressed while pressing the ink ribbon and the print medium against the thermal head with the platen. An ink ribbon and a print medium are run between the printer and the platen. At this time, the printer device applies thermal energy to the ink layer from the back side to the ink ribbon running between the thermal head and the platen, and sublimates the color material with the thermal energy to print the color material. Color images and characters are printed by thermal transfer to the medium.

  Here, if the thermal head and the platen are not opposed to each other and the front and rear are displaced, the ink ribbon and the print medium cannot be sandwiched, the ink ribbon and the print medium are displaced, and the adhesion between the two is deteriorated. May adversely affect print quality.

Japanese Patent Laid-Open No. 10-272814

  SUMMARY An advantage of some aspects of the invention is that it provides a printer device capable of reliably sandwiching an ink ribbon and a print medium by causing a thermal head and a platen to face each other.

  In order to solve the above-described problems, a printer device according to the present invention is a printer device that prints an image on a printing medium by bringing the ink ribbon and the printing medium into close contact with each other and heating the ink ribbon. An ink ribbon cartridge holder in which an ink ribbon cartridge containing the ink ribbon is mounted, a transport mechanism for transporting the print medium, a travel mechanism for traveling the ink ribbon, and a printing position and a printing position in proximity to the ink ribbon. A thermal head that is movably provided at a separate retreat position and heats the ink ribbon to print a predetermined image on the printing medium, and a thermal head that is moved to the printing position in the apparatus main body. Can be swung in the direction of approaching and separating, and the upper side of the printing medium and the ink ribbon can be A platen roller that is sandwiched together with the thermal head, and the thermal head is slidably brought into sliding contact with the shaft portion of the platen roller when moved to the printing position so as to provide positional accuracy with the platen roller. A moving piece is provided.

  According to the printer device of the present invention, the thermal head is opposed to the platen roller via the ink ribbon, and the sliding piece is opposed to the shaft portion of the platen roller. When the thermal head and the platen roller are brought close to each other, the sliding piece and the shaft portion of the platen roller are brought into sliding contact. As a result, since the shaft portion is guided by the sliding piece, the thermal head and the platen roller can face each other with high accuracy. As a result, the printer apparatus can maintain the adhesion between the ink ribbon and the print medium, and can maintain good print quality.

  Hereinafter, an ink ribbon cartridge to which the present invention is applied and a printer apparatus using the ink ribbon cartridge will be described in detail with reference to the drawings. The printer apparatus 1 is mounted with an ink ribbon cartridge 2 containing an ink ribbon, and runs an ink ribbon and a photographic paper between a thermal head and a platen roller provided at a position facing the thermal head, By applying thermal energy to the ink ribbon by the thermal head, the dye of the ink ribbon is thermally transferred to the photographic paper and an image is printed on the photographic paper. As shown in FIG. 1, the ink ribbon cartridge 2 is mounted. And a substantially rectangular apparatus main body 3 that conveys printing paper inside and outside and performs printing.

  In the printer 1, an opening 8 is formed in the front surface 3 a of the apparatus main body 3 for mounting a photographic paper tray 5 in which the photographic paper 4 is accommodated, and the photographic paper 4 is inserted into the apparatus main body 3 from the front surface 3 a side. , Is what is discharged. Further, as shown in FIG. 2, the printer apparatus 1 has a top plate 6 that is provided so as to be rotatable in the vertical direction and that constitutes the upper surface 3b of the apparatus body 3. The top plate 6 is rotated upward. Thus, the ink ribbon cartridge holder 7 rotated upward together with the top plate 6 is exposed outward from the front surface 3a side, and the ink ribbon cartridge 2 is inserted / removed from the front surface 3a side.

  The printer apparatus 1 transmits image information recorded on various recording media such as a recording medium installed in a recording medium slot provided in the apparatus main body 3 and a digital still camera connected via a USB or the like. Based on such image information, thermal energy is applied to the ink ribbon by the thermal head, and a predetermined image is printed by conveying the photographic paper 4 stored in the photographic paper tray 5.

  The printer device 1 is configured such that the photographic paper 4 is inserted and discharged from the front surface 3a side, and the ink ribbon cartridge 2 can be inserted and removed from the front surface 3a side. Compared to the type of printer apparatus that is inserted and removed from the printer, it is not necessary to secure a space for inserting and removing the ink ribbon cartridge 2 on the side surface of the apparatus body, and the space for arranging the printer apparatus 1 can be saved. Usability can be improved.

  Further, since the user inserts / removes the ink ribbon cartridge 2 into / from the ink ribbon cartridge holder 7 opened on the front surface 3a side of the apparatus main body 3 while facing the front of the apparatus main body 3, the insertion / removal operation is facilitated. . Further, as compared with the type in which the ink ribbon cartridge is inserted / removed from the side surface of the apparatus main body, the printer apparatus 1 has a transport mechanism 220 for the photographic paper 4 and a travel mechanism 210 for the ink ribbon 10 disposed on the side surface portion of the apparatus main body 3. In addition, the thermal head 140 and the ink ribbon 10 can be opposed to each other simultaneously with the mounting of the ink ribbon cartridge 2.

  Hereinafter, the ink ribbon cartridge 2 housed in the printer apparatus 1 will be described, and then the configuration of the printer apparatus 1 will be described.

  The ink ribbon cartridge 2 is mounted on a thermal transfer type printer apparatus 1 that performs color printing by thermally transferring a dye to photographic paper 4. As shown in FIGS. 3 and 4, the ink ribbon cartridge 2 winds the ink ribbon 10 and a supply-side spool 11 around which the ink ribbon 10 on which the dye layer transferred to the photographic paper 4 is formed is wound. A take-up spool 12, a supply spool 11 around which the ink ribbon 10 is wound, and a cartridge main body 13 that houses the take-up spool 12 are provided.

  As shown in FIG. 5, the ink ribbon 10 has an image forming yellow (Y), magenta (M), cyan (C) on one surface of a base material 10a made of a synthetic resin film such as a polyester film or a polystyrene film. ) Dye layers 10b, 10c, and 10d formed of a dye of each color and a thermoplastic resin, and a protective layer 10e formed of the same thermoplastic resin as, for example, the dye layers 10b, 10c, and 10d, are longitudinally spaced at a certain interval. Repeatedly provided in the direction. The base material 10a is formed with the dye layers 10b, 10c, and 10d and the protective layer 10e as a set and sequentially arranged in the longitudinal direction. The dye layers 10b, 10c, and 10d and the protective layer 10e are sequentially thermally transferred to the receiving layer 4b of the photographic paper 4 described later by applying thermal energy according to the image data to be printed by the thermal head 140.

  In the ink ribbon 10, yellow (Y), magenta (M), and cyan (C) dye layers 10b to 10d and a protective layer 10e are used for printing one image. The ink ribbon 10 is engaged with the supply-side spool 11 at one end and wound around the take-up spool 12 at the other end, and is sequentially supplied from the supply-side spool 11 as the printing progresses. It is wound on the side spool 12.

  The ink ribbon 10 used in the present invention is not particularly limited as long as it has at least one dye layer and a protective layer. For example, the ink ribbon 10 may be composed of a black (K) dye layer and a protective layer, and a yellow (Y), magenta (M), and cyan (C) black (K) dye layer and a protective layer. It may be composed of layers.

  As shown in FIGS. 4 and 6, the supply side spool 11 and the take-up side spool 12 have a shaft portion 14 around which the ink ribbon 10 is wound, and flange portions 15, 15 are provided on both sides of the shaft portion 14. Is formed. One end portion of the ink ribbon 10 is locked to the shaft portion 14 of the supply-side spool 11 by an adhesive or a locking member, and the other end portion of the ink ribbon 10 is bonded to the shaft portion 14 of the take-up spool 12. It is locked by the agent or the locking member. The flange portions 15 and 15 regulate the winding position of the ink ribbon 10 wound around the shaft portion 14 in the axial direction.

  A ratchet gear 17 is formed on the outer periphery of the flange portion 15 at one end portion 14 a of each shaft portion 14 of the supply side spool 11 and the take-up side spool 12 via a support shaft portion 16 concentric with the shaft portion 14. ing. The ratchet gear 17 restricts the rotation of the supply side spool 11 and the take-up side spool 12 by being locked to a spool lock 61 which will be described later, and is disposed in the printer device 1 when attached to the printer device 1. Is engaged with the ink ribbon travel mechanism 210 and rotates the take-up spool 12. Further, a support shaft portion 16 provided at the end of the flange portion 15 is a bearing provided in the supply side spool storage portion 23 and the winding side spool storage portion 24 in which the supply side spool 11 and the winding side spool 12 are stored. While being rotatably supported by the portions 25 and 26, the abutting wall 29 provided adjacent to the bearing portions 25 and 26 is brought into contact therewith.

  Further, a protrusion 18 is formed at the tip of the flange portion 15 at the other end portion 14b opposite to the one end portion where the ratchet gear 17 of the shaft portion 14 of the supply side spool 11 and the winding side spool 12 is formed. ing. The protrusion 18 is supported by bearing portions 27 and 28 provided in the supply-side spool storage portion 23 and the take-up-side spool storage portion 24 and is always urged in the axial direction of the shaft portion 14 by the urging member 20. Has been.

  The urging member 20 is formed by bending a thin metal plate, and is disposed in a guide portion 31 formed on a side surface of the cartridge body 13 described later. The biasing member 20 is formed in a long shape and has a generally bowed shape, and both ends in the longitudinal direction are directed toward the shaft portion 14 side of the supply side spool 11 and the take-up side spool 12. The tip portion is bent in an arc shape and is in contact with the protrusion 18 of each shaft portion 14. The urging member 20 is arranged so that both end portions thereof are positioned between the side surface of the cartridge main body 13 and the protrusion 18, thereby constantly urging the protrusion 18 in the axial direction of the shaft portion 14.

  Here, the bearing portions 25 to 28 that support the supply-side spool 11 and the take-up spool 12 are provided at a distance slightly longer than between the flange portions 15, 15. The take-side spool 12 is smoothly rotated without the flange portions 15 and 15 being in sliding contact with the bearing portions 25 to 28. On the other hand, the supply side spool 11 and the take-up side spool 12 may be rattled in the axial direction. However, since the protrusion 18 is constantly urged in the axial direction by the urging member 20, the shaft portion 14. The tip end of the support shaft portion 16 provided at the one end portion 14 a is abutted against the abutting wall 29 and is accommodated in the supply side spool accommodating portion 23 and the take-up side spool accommodating portion 24 without rattling. That is, the abutting wall 29 is abutted against the support shaft 16 on the side of the ratchet gear 17 of the supply side spool 11 and the take-up side spool 12, so that the supply side spool 11 and the take-up side spool 12 in the cartridge body 13. This is a reference wall for positioning in the axial direction. Thereby, the ink ribbon 10 wound around the supply side spool 11 and the take-up side spool 12 is stabilized in the winding position in the cartridge main body 13, and even when the ink ribbon cartridge 2 is transported to the mounting position, The head 140 and the platen roller 155 are opposed to each other with high accuracy.

  Further, the protrusion 18 that is in contact with the urging member 20 is formed to have a larger diameter than the support shaft portion 16 that is abutted against the abutment wall 29. That is, the supply side spool 11 and the take-up side spool 12 receive the urging force of the urging member 20 at the tip of the projection 18 having a large diameter, and are pressed against the abutment wall 29 by the tip of the support shaft 16 having a small diameter. Therefore, the support shaft portion 16 and the abutting wall 29 are slidably brought into contact with each other with low friction, so that loss torque and torque fluctuation associated with rotational driving can be reduced, and power consumption can be suppressed.

  The urging member 20 can also be a coil spring other than being formed by bending a thin sheet metal.

  Further, the support shaft portion 16 is formed of a cylindrical body concentric with the shaft portion 14, and the tip end surface 16 a abutted against the abutment wall 29 is a flat surface as shown in FIG. 7A, or FIG. It is formed so as to form an arc surface as shown in FIG. The support shaft portion 16 is formed such that the distal end surface 16a forms an arc surface, whereby friction with the abutting wall 29 is reduced, and smooth rotation is possible.

  As shown in FIG. 4, the cartridge body 13 in which the supply side spool 11 and the take-up side spool 12 configured as described above are rotatably housed includes an upper shell 21 that constitutes the upper surface of the cartridge body 13, and a supply side. A lower shell 22 in which the spool 11 and the take-up side spool 12 are rotatably housed is formed, and the upper shell 21 and the lower shell 22 are joined to each other by being abutted and joined to each other.

  The cartridge body 13 is formed in a substantially rectangular shape as a whole, and a guide portion 31 that guides insertion / removal of the printer apparatus 1 to / from the ink ribbon cartridge holder 7 described later on both side surfaces in the longitudinal direction, and insertion into the printer apparatus 1. A grip portion 32 is formed on the front surface portion 13a that is gripped by the user during removal.

  The guide portion 31 is formed in parallel along both side surfaces of the cartridge main body 13 and laterally at a position higher than the lower surface of the cartridge main body 13 where the supply side spool storage portion 23 and the take-up side spool storage portion 24 are provided. It is bulging. The guide portion 31 is supported by the ink ribbon cartridge holder 7 having a substantially U-shaped cross section, thereby guiding insertion / removal to the printer apparatus 1. The guide portion 31 is supported by an ink ribbon cartridge holder 7 having a substantially U-shaped lower surface, and a space is provided below the guide portion 31 in which components on the printer device 1 side can be placed. can do. That is, since the guide portion 31 bulges laterally at a position higher than the lower surface of the cartridge body 13, a space is generated below when supported by the ink ribbon cartridge holder 7 having a U-shaped cross section. . Therefore, the components of the printer apparatus 1 can be disposed in this space, and the design flexibility of the printer apparatus 1 can be improved, the size can be reduced, and the space can be saved.

  The guide portion 31 has a spool lock 61 (to be described later) facing the opening 33 formed in the lower surface. The spool lock 61 is pressed and supplied by being supported by the ink ribbon cartridge holder 7. The side spool 11 and the take-up side spool 12 are rotatable (see FIG. 12, FIG. 10, etc.).

  The grip portion 32 is formed to bulge out at a substantially central portion of the front surface portion 13 a of the cartridge body 13. The grip portion 32 is a handle that is gripped by the user when the ink ribbon cartridge 2 is attached to or discharged from the printer apparatus 1, and has a substantially rectangular shape as a whole, at a position higher than the lower surface of the cartridge body 13. It is bulging forward. As shown in FIG. 4, the grip portion 32 has a concave portion 34 in which the user's thumb is disposed on the upper surface. The concave portion 34 has an inclined surface 34 a that curves downward toward the back side of the cartridge body 13, and a plurality of protrusions that prevent slipping are formed on the inclined surface 34 a in the longitudinal direction of the cartridge body 13. ing.

  The upper shell 21 constitutes the upper surface 13b of the cartridge main body 13 by being butted and joined to the lower shell 22, and as shown in FIG. When the ink ribbon cartridge 2 is inserted into the ink ribbon cartridge holder 7, a temporary fixing recess 35 for positioning the ink ribbon cartridge 2 in the printer device 1 and a locking claw 51 locked to the lower shell 22 described later are formed. ing.

  The temporary fixing concave portion 35 is temporarily engaged with the temporary fixing convex portion 131 provided in the ink ribbon cartridge holder 7 to temporarily determine the position of the ink ribbon cartridge 2 in the apparatus main body 3 of the printer apparatus 1. Is. As a result, the ink ribbon cartridge 2 is temporarily positioned in the ink ribbon cartridge holder 7 rotated upward, and the ink ribbon cartridge holder 7 is rotated into the apparatus main body 3, thereby It is possible to easily insert the first and second positioning convex portions 162 and 163 projecting in the apparatus main body 3 into the positioning holes 72 and 73 provided in the lower surface portion 13c.

  The locking claws 51 will be described in detail later together with the locking holes 52 of the lower shell 22.

  As shown in FIG. 6, the lower shell 22 butt-coupled to the upper shell 21 includes a supply-side spool storage portion 23 that stores the supply-side spool 11, and a take-up side spool storage portion 24 that stores the take-up side spool 12. Are spaced apart from each other in parallel. Each of the spool storage portions 23 and 24 is formed to have a substantially semicircular cross section, and rotatably stores the supply side spool 11 and the take-up side spool 12.

  The supply side spool storage portion 23 and the take-up side spool storage portion 24 are formed with a plurality of ribs 41 intermittently in a direction orthogonal to the longitudinal direction. The rib 41 is formed of a protruding body provided along the inner peripheral wall formed in the arc shape of the supply side spool storage portion 23 and the winding side spool storage portion 24, and the supply side on which the ink ribbon 10 is wound. The spool 11 and the winding side spool 12 are intermittently supported. As a result, the ink ribbon 10, the supply-side spool storage portion 23, and the inner peripheral wall of the take-up spool storage portion 24 do not come into contact with each other even when they are attracted by static electricity, and easily peel off when they come into contact. Therefore, smooth rotation of the supply side spool 11 and the take-up side spool 12 can be ensured.

  The supply-side spool storage portion 23 is provided with a bearing portion 25 that supports the support shaft portion 16 of the supply-side spool 11 on the outside of the flange portion 15 at one end in the longitudinal direction, and the protrusion of the supply-side spool 11 at the other end in the longitudinal direction. A bearing portion 27 that supports the portion 18 outside the flange portion 15 is provided. Further, the winding side spool storage portion 24 is provided with a bearing portion 26 that supports the support shaft portion 16 of the winding side spool 12 on the outer side of the flange portion 15 at one end in the longitudinal direction, and is wound at the other end in the longitudinal direction. A bearing portion 28 that supports the protrusion 18 of the side spool 12 on the outside of the flange portion 15 is provided.

  As shown in FIG. 8, each of these bearing portions 25 to 28 is substantially an open top surface of support walls 42 formed at both ends in the longitudinal direction of the supply side spool storage portion 23 and the take-up side spool storage portion 24. It is provided by cutting out into a concave shape, and supports the three points of the lower part of each support shaft part 16 and the protrusion 18 and both right and left side parts in a rotatable manner. Further, each of the bearing portions 25 to 28 includes a support wall 42 and support pieces 43 to 46 projecting on the upper shell 21 side corresponding to the support wall 42 when the upper shell 21 and the lower shell 22 are abutted and coupled. The upper surface side which is butted and opened is closed by these support pieces 43 to 46. At this time, the support shaft portion 16 and the protrusion 18 are supported at one point on the upper side by the support pieces 43 to 46. Accordingly, the supply side spool 11 and the take-up side spool 12 are configured so that the support shaft portion 16 and the protrusion 18 are supported on the four sides by the bearing portions 25 to 28 and the support pieces 43 to 46, thereby supplying the supply side spool storage portion 23. Alternatively, positioning in the take-up side spool storage unit 24 is achieved.

  Further, as shown in FIGS. 3 and 4, the supply-side spool storage portion 23 and the take-up side spool storage portion 24 are configured so that a part of each ratchet gear 17 of the supply-side spool 11 and the take-up side spool 12 is placed on the cartridge body 13. Gear openings 47 and 48 are formed to face outward from the lower surface side. The ratchet gear 17 formed on the supply-side spool 11 faces the gear opening 47 and engages with a gear portion 137 of a connecting member 135 attached to the top chassis 102 described later, whereby the ink ribbon cartridge holder 7. The supply-side spool 11 is rotated in the rewinding direction of the ink ribbon 10 at the time of opening. Further, a ratchet gear 17 formed on the take-up spool 12 is exposed from the gear opening 48, and the ink ribbon cartridge 2 is transported to the printing position of the printer apparatus 1 and positioned so as to be provided in the printer apparatus 1. The take-up side spool 12 is engaged with the running gear 212 of the ribbon running mechanism 210 and is rotatable in the take-up direction in which the ink ribbon 10 is run.

  The supply-side spool storage portion 23 and the take-up-side spool storage portion 24 have a slit 49 serving as a draw-out port for the ink ribbon 10 and a slit 50 serving as a draw-in port when the upper shell 21 and the lower shell 22 are brought into contact with each other. Is formed. As a result, the ink ribbon 10 extends between the supply side spool storage portion 23 and the take-up side spool storage portion 24.

  Note that openings 40 a and 40 b (hereinafter also simply referred to as an opening 40) are formed between the supply-side spool storage portion 23 and the winding-side spool storage portion 24 of the upper shell 21 and the lower shell 22. When the upper shell 21 and the lower shell 22 are butt-joined, the opening 40 constituted by the openings 40a and 40b is spanned between the supply-side spool 11 and the take-up spool 12, and the supply-side spool storage 23 The ink ribbon 10 extending from the slit 49 to the slit 50 of the take-up side spool storage unit 24 is exposed to the outside, and the thermal head 140 of the printer apparatus 1 enters and presses the ink ribbon 10 against the photographic paper 4. In addition, the ribbon guide 165 protruding from the printer device 1 side enters and becomes a region where a ribbon path is formed.

  Here, the engagement mechanism 30 that couples the upper shell 21 and the lower shell 22 will be described. The engaging mechanism 30 couples the upper shell 21 and the lower shell 22 by locking the locking claw 51 protruding from the side edge of the upper shell 21 into the locking hole 52 formed in the side edge of the lower shell 22. It is something to be made. As shown in FIGS. 4 and 9, two locking claws 51 of the upper shell 21 are projected from the front surface 21a and the rear surface 21b of the upper shell 21 and one at both side surfaces 21c and 21d. Each latching claw 51 has a substantially rectangular plate-like main body 53 that hangs downward, and a hook-shaped portion 54 provided at the tip of the main body 53. The hook-shaped portion 54 has an inclined surface 54 a that is inclined toward the tip of the main body portion 53, and can be easily engaged with a locking hole 52 formed in the lower shell 22. As shown in FIG. 9, two locking holes 52 formed in the lower shell 22 are formed on the front surface 22 a and the back surface 22 b of the lower shell 22, and one is formed on each of the side surfaces 22 c and 22 d. Each locking hole 52 includes a locking wall 55 for locking the hook-shaped portion 54 of the locking claw 51 and an opening 56 through which the hook-shaped portion 54 is inserted. When the upper shell 21 is abutted against the lower shell 22, the hooking portion 54 is inserted into the opening 56 by sliding the hook-shaped portion 54 on the locking wall portion 55, and is locked to the locking wall portion 55. The

  Here, the upper shell 21 is provided with release restriction pieces 57 and 57 projecting between the both locking claws 51 and 51 of the front surface 21a, and the lower shell 22 is released between the both locking holes 52 and 52 of the front surface 22a. Release restricting walls 58 and 58 that come into contact with the pieces 57 and 57 are provided upright. These release restricting pieces 57 and release restricting walls 58 are provided in the grip portion 32 of the cartridge main body 13 as shown in FIGS. 9 and 6.

  The release restricting pieces 57 are suspended downward from both sides in the longitudinal direction of the grip portion 32 bulged toward the front surface 21 a of the upper shell 21. When the upper shell 21 is abutted against the lower shell 22, the grip portion on the lower shell 22 side 32 is inserted. Further, the release restricting walls 58 are provided on both sides in the longitudinal direction of the grip portion 32 bulged on the front surface 22 a of the lower shell 22 corresponding to the release restricting pieces 57. The release restriction wall 58 forms a clearance for inserting the release restriction piece 57 between the release restriction wall 58 and the front wall bulged on the front surface 22 a of the lower shell 22.

  When the upper shell 21 and the lower shell 22 are brought into contact with each other, each locking claw 51 is inserted into the opening 56 while the hook-shaped portion 54 slides on the locking wall portion 55 of the locking hole 52 and is released. The restriction piece 57 is inserted between the release restriction wall 58 and the front wall of the lower shell 22. At this time, since the locking claw 51 has the inclined surface 54a formed on the hook-shaped portion 54, the tip of the hook-shaped portion 54 and the locking wall portion 55 are smoothly brought into contact with each other. Further, the locking claw 51 is slid while the main body portion 53 is bent, and the main body portion 53 is elastically restored when the hook-shaped portion 54 is inserted into the opening portion 56, so that the hook-shaped portion 54 and the locking wall portion 55. Are securely locked. At this time, since the release restricting piece 57 is supported on the front side by the front wall of the lower shell 21 and supported on the back side by the release restricting wall 58, the upper shell 21 is prevented from falling to the back side. Accordingly, the locking claws 51, 51 projecting from the front surface 21 a of the upper shell 21 are directed toward the rear side, which is the direction in which the engagement with the locking holes 52, 52 provided in the front surface 22 a of the lower shell 22 is released. Since tilting is prevented, a situation in which the engagement between the upper shell 21 and the lower shell 22 is disengaged can be prevented.

  Further, as shown in FIG. 4, the upper shell 21 is provided with an engagement piece 59 that engages with the back wall of the lower shell 22 in the longitudinal direction between both the locking claws 51, 51 of the back surface 21 b. The engagement piece 59 is bent downward from the back surface 21 b of the upper shell 21 and is engaged with the lower shell 22 so as to cover the back wall of the lower shell 22. As a result, the engagement piece 59 is brought into contact with the rear wall of the lower shell 22 and the front surface side, so that the upper shell 21 is prevented from falling to the front surface 21a side. Accordingly, the locking claws 51, 51 protruding from the back surface 22 b of the upper shell 21 are directed toward the front side, which is the direction in which the engagement with the locking holes 52, 52 provided in the back surface 22 b of the lower shell 22 is released. Since tilting is prevented, a situation in which the engagement between the upper shell 21 and the lower shell 22 is disengaged can be prevented.

  Note that the engagement mechanism 30 may be provided at any place of the upper shell 21 and the lower shell 22 in addition to the release restriction piece 57 and the release restriction wall 58 provided in the grip portion 32. Further, the locking claw 51 and the release restricting piece 57 may be provided on the lower shell 22, and the locking hole 52 and the release restricting wall 58 may be provided on the upper shell 21.

  4 and 6, the lower shell 22 constituting the cartridge body 13 has a supply side spool 11 and a take-up side spool that are rotatably accommodated on one end portion side where the abutting wall 29 is formed. A spool lock 61 is provided to prevent the rotation of 12. The spool lock 61 is disposed in a connecting portion 62 between the supply side spool storage portion 23 and the take-up side spool storage portion 24 provided on one end side of the lower shell 22.

  As shown in FIG. 10, the spool lock 61 includes a substantially M-shaped elastic support portion 63 disposed in the connecting portion 62, and the supply side spool storage portion 23 and the take-up side spool storage from the elastic support portion 63. It has a pair of elastic engagement pieces 64 a and 64 b extending to the portion 24. The elastic engagement pieces 64 a and 64 b are formed with protruding ratchet portions 65 a and 65 b that engage with the ratchet gears 17 and 17 of the supply side spool 11 and the take-up side spool 12 on the upper end side. As a starting point, the ratchet portions 65a and 65b are formed so as to be displaced in the direction of arrow A and the direction of the opposite arrow A in FIG. Yes.

  Further, the elastic engagement pieces 64 a and 64 b face the lower end side below the guide portion 31 from the opening portion 33 formed in the lower surface of the guide portion 31 of the cartridge main body 13, and the guide support portion of the ink ribbon cartridge holder 7. Pressed portions 66a and 66b pressed by 125 are formed. The pressed parts 66a and 66b are pressed by the guide support part 125, thereby releasing the engagement of the ratchet parts 65a and 65b with the ratchet gears 17 and 17 of the supply side spool 11 and the take-up side spool 12 as shown in FIG. It is elastically displaced in the direction of the middle arrow A.

  In the spool lock 61, the elastic support portion 63 is disposed in the connecting portion 62 of the lower shell 22, so that the pressed portions 66 a and 66 b are formed in the lower surface of the guide portion 31 of the cartridge body 13 as shown in FIG. 10. It faces the lower side of the guide portion 31 from the provided opening 33 and can be pressed against the guide support portion 125 of the ink ribbon cartridge holder 7. At this time, the ratchet portions 65 a and 65 b of the spool lock 61 are engaged with the ratchet gears 17 and 17 to prevent the supply side spool 11 and the take-up side spool 12 from rotating.

  Specifically, the ratchet portions 65 a and 65 b of the spool lock 61 are engaged obliquely above the surfaces of the spools 11 and 12 on the side facing the ratchet gears 17 and 17. Accordingly, the spool lock 61 restricts the rotation of the supply side spool 11 and the take-up side spool 12 in the feeding direction of the ink ribbon 10, and the rotation in the take-up direction is free. Therefore, the spool lock 61 causes a situation in which the ink ribbon 10 is bent and pulled out to the outside by rotating both the spools 11 and 12 in the feeding direction in a state where the ink ribbon cartridge 2 is not attached to the printer apparatus 1. Can be prevented.

  As shown in FIG. 11, the spool lock 61 is configured such that when the cartridge main body 13 is mounted on the ink ribbon cartridge holder 7, the lower surface of the guide portion 31 is slid on the guide support portion 125, so The pressed portions 66 a and 66 b facing outward from the lower surface of the guide are pressed by the guide support portion 125. As a result, in the spool lock 61, the elastic engagement pieces 64a and 64b are bent upward with the elastic support portion 63 as a fulcrum, and the engagement between the ratchet portion 65 and the ratchet gears 17 and 17 of both spools 11 and 12 is released. The Accordingly, when the ink ribbon cartridge 2 is mounted on the printer apparatus 1, the spool lock 61 can rotate both the spools 11 and 12 and can run the ink ribbon 10.

  Next, a mounting surface 70 provided on the lower surface of the cartridge body 13 and serving as a reference surface for positioning the ink ribbon cartridge 2 in the printer apparatus 1 will be described. As shown in FIG. 12, the mounting surfaces 70 are formed on the lower surface portions at both ends of the take-up side spool storage portion 24 provided on the front surface portion 13 a side of the cartridge body 13, and are inserted into the ink ribbon cartridge holder 7. When the cartridge main body 13 is conveyed into the apparatus main body 3 of the printer apparatus 1, the cartridge main body 13 is supported by the cartridge support unit 160 disposed in the apparatus main body 3 and serves as a reference surface for positioning the ink ribbon cartridge 2. The ink ribbon cartridge 2 is disposed at a position where the ink ribbon 10, the photographic paper 4, and the thermal head 140 can be printed by the mounting surface 70 being supported by the cartridge support unit 160.

  Specifically, the placement surface 70 includes a first placement surface 70a formed on the lower surface portion on one end side of the winding side spool storage portion 24 and a second placement surface formed on the lower surface portion on the other end side. And a placement surface 70b. These first and second mounting surfaces 70a and 70b are formed by a pair of positioning projections projecting from the cartridge support unit 160 of the apparatus body 3 shown in FIG. First and second positioning holes 72 and 73 into which the parts 162 and 163 are inserted are formed.

  The first positioning hole 72 is provided in a substantially circular shape according to the substantially conical positioning convex portion 162. The second positioning hole 73 is formed in a long hole shape with one end opened to the side wall of the take-up side spool storage portion 24. The first and second positioning holes 72 and 73 are inserted into the positioning convex portions 162 and 163 when the mounting surface 70 is supported by the cartridge support unit 160. At this time, the first and second positioning holes 72 and 73 are formed so that the second positioning hole 73 is formed in a long hole shape, and thus the first positioning convex portion 162 is inserted into the first positioning hole 72. As a result, even if the butting accuracy between the second positioning hole 73 and the second positioning convex portion 163 is misaligned, the misalignment can be absorbed. Therefore, the first positioning hole 72 can be used as a reference. In addition, the ink ribbon cartridge 2 can be positioned in the apparatus main body 3.

  An ID hole 74 for identifying the type of the ink ribbon cartridge 2 is formed in the vicinity of the second positioning hole 73. One or a plurality of ID holes 74 are formed, and the type of the ink ribbon cartridge 2 is identified by detecting whether the ID hole 74 is opened or closed.

  As the type of the ink ribbon cartridge 2, for example, the length in the width direction of the ink ribbon 10 is a so-called postcard size (width of about 100 mm) or L size (width of about 89 mm). Then, the ID hole 74 is opened or closed according to the type.

  An opening state of the ID hole 74 is detected by a detection switch 164 protruding from the cartridge support unit 160. One or a plurality of the detection switches 164 are formed in accordance with the drilling position of the ID hole 74, and when these are closed, they are pressed by the closed portion (see FIG. 13). As a result, the printer apparatus 1 discriminates the pressed state of the detection switch 164 and identifies the type of the ink ribbon cartridge 2. For example, when the printer device 1 prints a postcard size printing paper, the detection switch 164 determines whether or not the ink ribbon cartridge 2 having a width suitable for the ink ribbon 10 to perform postcard size printing is mounted. It discriminate | determines by detecting the press state of.

  The ID hole 74 is formed in the vicinity of the second positioning hole 73. Therefore, the ID hole 74 of the ink ribbon cartridge 2 positioned in the apparatus main body 3 and the detection switch 164 are reliably opposed, and the type of the ink ribbon cartridge 2 can be determined.

  As shown in FIG. 14, the ID hole 74 overlaps with the end of the winding area when a wide ink ribbon 10W such as A6 size or postcard size is wound on the take-up spool 12, and is also L size. The ink ribbon 10N, which is narrower than the equal ink ribbon 10W, is provided at a position that does not overlap with the end of the winding area when the ink ribbon 10N is wound around the winding-side spool 12. The ID hole 74 is closed when the ink ribbon 10W is wound, and is opened when the ink ribbon 10N is wound.

  That is, when the wide ink ribbon 10W is wound, even if the ID hole 74 is formed at a position facing the end of the ink ribbon 10W as shown in FIG. Therefore, the detection switch 164 is not inserted into the take-up side spool storage portion 24 and does not come into contact with the ink ribbon 10W. On the other hand, when the narrow ink ribbon 10N is wound, the ID hole 74 is not formed at a position facing the ink ribbon 10N as shown in FIG. Is opened and the detection switch 164 is inserted, it does not come into contact with the ink ribbon 10N.

  In this way, the ID hole 74 is provided at a position facing the winding position of the wide ink ribbon 10W and not facing the winding position of the narrow ink ribbon 10N, and the wide ink ribbon 10W is wound. The ID hole 74 is closed, and when the narrow ink ribbon 10N is wound, the ID hole 74 is opened so that the type of the ink ribbon cartridge 2 can be determined by the detection switch 164. In addition, the ID hole 74 can be provided at a position opposite to the winding position of the ink ribbon 10, so that the space of the cartridge body 13 can be saved and the degree of design freedom can be improved. In addition, with the space saving of the cartridge main body 13, the printer main body 3 in which the detection switch 164 is disposed at a position corresponding to the ID hole 74 can also be downsized.

  As shown in FIG. 3, the ink ribbon cartridge 2 configured as described above is gripped by the user with the grip portion 32 formed on the front surface portion 13a of the cartridge body 13, and the back surface side of the cartridge body 13 is used as the insertion end. 2 is inserted into the printer apparatus 1 from the direction of the arrow X in FIG. At this time, in the printer apparatus 1, the ink ribbon cartridge holder 7 is moved to the insertion / removal position by rotating the top plate 6 upward, and the ink ribbon cartridge 2 can be inserted / removed from the front surface 3 a side of the apparatus body 3. It is said that. The ink ribbon cartridge 2 is inserted while the guide portion 31 is guided by the guide support portion 125 of the ink ribbon cartridge holder 7. When the ink ribbon cartridge 2 is attached to the ink ribbon cartridge holder 7, the temporary fixing convex portion 131 provided on the ink ribbon cartridge holder 7 is engaged with the temporary fixing concave portion 35 provided on the upper surface 13 b of the cartridge body 13. Combined. Thus, the ink ribbon cartridge 2 is temporarily positioned in the ink ribbon cartridge holder 7.

  At the same time, the guide support portion 125 of the ink ribbon cartridge holder 7 presses the pressed portions 66a and 66b of the elastic engagement pieces 64a and 64b protruding from the opening 33 of the lower shell 22. Then, the elastic engagement pieces 64a and 64b in which the ratchet portions 65a and 65b are engaged with the ratchet gears 17 and 17 are elastically displaced in the direction of the arrow A in FIG. 17 and 17 and the ratchet portions 65a and 65b are disengaged. As a result, the supply-side spool 11 and the take-up-side spool 12 can be smoothly rotated by the travel mechanism 210 of the ink ribbon 10 provided in the printer apparatus 1.

  When the ink ribbon cartridge 2 is inserted into the ink ribbon cartridge holder 7, the top plate 6 of the printer apparatus 1 is closed, and the ink ribbon cartridge 2 is moved to a printing position for printing on the photographic paper 4 in the apparatus main body 3. A thermal head 140 attached to the top plate 6 is inserted into the opening 40 of the cartridge body 13. As a result, the ink ribbon 10 extended to the opening 40 forms a ribbon path serving as a travel path and is brought into contact with the thermal head 140 so as to be able to print on the printing paper 4.

  When the ink ribbon cartridge 2 is moved to the printing position, the ratchet gear 17 formed on the flange portion 15 of the supply side spool 11 and the take-up side spool 12 facing outward from the gear openings 47 and 48. And the traveling gear 212 of the traveling mechanism 210 are engaged. Further, the ink ribbon cartridge 2 has a pair of positioning members protruding from the cartridge support unit 160 in the first and second positioning holes 72 and 73 provided in the first and second placement surfaces 70a and 70b. The convex portions 162 and 163 are inserted, and positioning of the cartridge main body 13 in the apparatus main body 3 is achieved. At this time, the cartridge main body 13 is positioned to some extent by engaging the temporary fixing convex portion 131 provided in the ink ribbon cartridge holder 7 with the temporary fixing concave portion 35 in advance. The second positioning holes 72 and 73 and the pair of positioning projections 162 and 163 are smoothly engaged, and positioning can be easily performed. Further, the type of the ink ribbon cartridge 2 is determined when the detection switch 164 protruding from the cartridge support unit 160 contacts or is inserted into the ID hole 74.

  Thereafter, in the ink ribbon cartridge 2, the supply side spool 11 and the take-up side spool 12 are rotated by the travel mechanism 210 of the printer apparatus 1, and the ink ribbon 10 is traveled. In addition, the thermal head 140 inserted from the opening 40 of the cartridge body 13 applies thermal energy to the ink ribbon 10 extended to the opening 40, whereby the print conveyed by the conveyance mechanism 220 described later. The dye is thermally transferred to the paper 4. When the ink ribbon 10 is running, the elastic engagement pieces 64a and 64b are prevented from generating operating noise because the ratchet portions 65a and 65b are not engaged with the ratchet gears 17 and 17, respectively.

  Further, when the ink ribbon cartridge 2 is not in use, such as during storage or transportation, and is in a state of being ejected from the ink ribbon cartridge holder 7, as shown in FIG. 64b is urged in the direction of the arrow A in FIG. 10, and the ratchet portions 65a and 65b are engaged with the ratchet gears 17 and 17, respectively.

  In this state, the supply-side spool 11 bites the ratchet portion 65a of the elastic engagement piece 64a into the ratchet gear 17 when a rotational force in the direction of arrow B in FIG. Since a force is applied to, rotation in the B direction can be prevented. Thereby, it can prevent that the unused ink ribbon 10 extends to the opening part 40 at the time of non-use. When the rotational force that rotates the supply-side spool 11 in the direction of arrow C in FIG. 10 for winding the ink ribbon 10 is applied by vibration or the like, the elastic engagement piece 64a has the ratchet portion 65a riding on the ratchet gear 17. Accordingly, the supply-side spool 11 can rotate in the direction of arrow C in FIG. Therefore, when the ink ribbon 10 is led out to the opening 40 and sagging occurs, the slack ink is generated by rotating the flange portion 15 of the supply-side spool 11 facing the gear opening 47 in the direction of arrow C in FIG. The ribbon 10 can be wound up.

  When the winding spool 12 winds up the ink ribbon 10 due to vibration or the like, when the rotational force in the direction of arrow D in FIG. 10 is applied, the elastic engagement piece 64b has the ratchet portion 65b riding on the ratchet gear 17. As a result, the take-up spool 12 rotates in the direction of arrow D in FIG. On the other hand, when the rotational force in the direction of arrow E in FIG. 10 is applied to the take-up spool 12, a force is applied in the direction in which the ratchet portion 65b of the elastic engagement piece 64b bites into the ratchet gear 17. Directional rotation can be prevented. Thereby, it is possible to prevent the used ink ribbon 10 from extending to the opening 40 when not in use, and when the used ink ribbon 10 is led out to the opening 40 and sagging occurs. In this case, the slack ink ribbon 10 can be wound by rotating the flange portion 15 of the winding side spool 12 facing the gear opening 48 in the direction of arrow D in FIG.

  That is, the spool lock 61 prohibits the rotation in the direction of arrow B in FIG. 10 for feeding the ink ribbon 10 of the supply-side spool 11 to the opening 40 and is opposite to the winding direction of the ink ribbon 10 of the winding-side spool 12. By inhibiting the rotation in the direction of arrow E in FIG. 10, the slack of the ink ribbon 10 can be prevented.

  Here, the photographic paper 4 will be described with reference to FIG. The photographic paper 4 has a receiving layer 4b formed on one surface of a substrate 4a and a back layer 4c formed on the other surface of the substrate 4a.

  The base material 4a is configured by forming resin layers 4e and 4f on both surfaces of a base paper 4d made of pulp or the like. The resin layers 4e and 4f are made of a thermoplastic resin such as polyethylene terephthalate or polypropylene, contain a microvoid structure, and have cushioning properties. Therefore, in particular, the resin layer 4e on the receiving layer 4b side improves adhesion between the base paper 4d and the receiving layer 4b, improves heat insulation, and improves heat followability from the thermal head 140. Yes. In addition, the resin layers 4e and 4f make good contact with the thermal head 140. In particular, since the receiving layer 4b and the resin layer 4e are thermoplastic resins, the receiving layer 4b and the resin layer 4e are thermally deformed by thermal energy from the thermal head 140 and are crushed and lose cushioning properties by a predetermined pressure applied from the thermal head 140. Has characteristics.

  The receiving layer 4b has a thickness of about 1 μm to 10 μm, and is a layer that receives the dye transferred from the ink ribbon 10 and holds the received dye, and is a resin such as an acrylic resin, polyester, polycarbonate, or polyvinyl chloride. It is formed with. Further, the back layer 4c reduces friction between the capstan roller 225 and the platen roller 155 so that the photographic paper 4 can travel stably. In addition, as long as the photographic paper 4 has the receiving layer 4b and the resin layer 4e, another structure will not be specifically limited.

  Next, the printer 1 that has the ink ribbon cartridge 2 mounted thereon and prints an image on the photographic paper 4 will be described. As shown in FIGS. 1 and 2, the printer device 1 includes a device body 3 having a substantially rectangular box shape, and a top plate 6 constituting an upper surface 3b of the device body 3 is provided so as to be rotatable in the vertical direction. Yes. A main chassis 100 is disposed in the apparatus main body 3. As shown in FIGS. 16 and 17, the main chassis 100 includes a base chassis 101 and a top chassis 102 connected to the top plate 6 and attached to the base chassis 101 so as to be rotatable in the vertical direction.

  Further, as shown in FIG. 1, the apparatus main body 3 is provided with an operation panel 104 of the printer apparatus 1 and an LCD panel 105 for displaying a print image or the like on the top plate 6 constituting the upper surface 3b. A top chassis 102, which will be described later, is attached to the top plate 6. The top plate 6 can be rotated in the vertical direction together with the ink ribbon cartridge holder 7 connected to the top chassis 102.

  Further, the apparatus body 3 rotates the opening 8 in which the photographic paper tray 5 storing the photographic paper 4 is mounted on the front surface 3a, the recording medium slot 106 in which various recording media are loaded, and the top plate 6 upward. An open button 107 to be moved is provided. The opening 8 can be freely opened and closed by a shutter 108, and the photographic paper tray 5 is mounted when the shutter 108 is opened.

  The printer apparatus 1 is attached to the ink ribbon cartridge holder 7 facing the front surface 3a when the photographic paper tray is mounted from the opening 8 and the open button 107 is operated to rotate the top plate 6 upward. The ink ribbon cartridge 2 is mounted, and the top plate 6 is returned to the apparatus main body 3 side, so that preparation for printing is completed. In addition, the printer device 1 displays an image recorded on a recording medium or an image recorded on various recording devices such as a memory device or a digital still camera connected via a USB or the like on the LCD panel 105, and an operation panel 104. , Various operations such as selection of a print image, setting of a size, the number of sheets, and the like, start and stop of printing, and the like can be performed.

  Next, the main chassis 100 disposed in the apparatus main body 3 of the printer apparatus 1 will be described. As shown in FIGS. 16 and 17, the main chassis 100 has the ink ribbon cartridge 2 placed thereon as a result of the ink ribbon cartridge holder 7 being conveyed, and the traveling mechanism 210 of the ink ribbon 10 and the conveyance mechanism of the photographic paper 4. The base chassis 101 is provided with 220, and the top chassis 102 includes the ink ribbon cartridge holder 7 and the thermal head 140, and is connected to the top plate 6 and attached to the base chassis 101 so as to be rotatable in the vertical direction.

  As shown in FIGS. 18 and 19, the base chassis 101 includes a main surface 110, left and right side walls 111 and 112, a front wall 113 and a back wall 114, and is formed in a substantially box shape whose upper surface is open. The base chassis 101 has a photographic paper tray 5 mounted on the front wall 113 side and an ink ribbon cartridge holder 7 loaded with the ink ribbon cartridge 2 from the upper surface side. A transport mechanism 220 that transports the main body 3 from the front surface 3a side to the back surface 3c side; a travel mechanism 210 that travels the ink ribbon 10 by rotating the take-up spool 12 housed in the ink ribbon cartridge 2; A switching mechanism 190 for switching the relative position of the platen roller 155 provided on the main surface 110 so as to be movable up and down and the thermal head 140 attached to the top chassis 102, and an opening of the ink ribbon cartridge 2 provided on the main surface 110. The cartridge that forms the travel path of the ink ribbon 10 by entering the portion 40. Support unit 160 is formed.

  The top chassis 102 is formed in a substantially plate shape, and the thermal head 140 and the ink ribbon cartridge holder 7 are provided on the back surface 102 a side facing the inside of the base chassis 101. The top chassis 102 has both ends on the back side supported by the left and right side walls 111 and 112 of the base chassis 101 so as to be rotatable, and a torsion coil spring 116 having one end locked to the back wall 114 of the base chassis 101. When the end is locked, the ink ribbon cartridge holder 7 is always urged to rotate upward so as to face the front surface 3a side of the apparatus main body 3 (see FIG. 16). When the open button 107 is operated, the biasing force of the torsion coil spring 116 is received and the top plate 6 and the top body 3 are rotated. Similarly, the ink ribbon cartridge holder 7 is also rotatably supported on the left and right side walls 111 and 112 of the base chassis, and is locked by a connecting member 135 projecting from the back surface 102a of the top chassis 102. It is rotated upward in synchronization with the rotation of the chassis 102 and is exposed outward from the front surface of the apparatus body 3.

  In other words, the printer device 1 is provided such that three members of the top plate 6, the top chassis 102, and the ink ribbon cartridge holder 7 connected to the top chassis 102 can be rotated upward with respect to the apparatus body 3 or the base chassis 101. In response to the urging force of the torsion coil spring 116 via the top chassis 102, the urging force is turned upward. In the printer apparatus 1, the top chassis 102, the top plate 6, and the ink ribbon cartridge holder 7 are rotated and held downward to close the base chassis 101 when the top chassis 102 is locked to the base chassis 101.

  The ink ribbon cartridge holder 7 is transported to an insertion / removal position where the ink ribbon cartridge 2 is inserted / removed by rotating upward of the apparatus main body 3 and is rotated into the apparatus main body to rotate the ink ribbon cartridge 2. 2 is conveyed to a printing position where the ink ribbon 10 and the thermal head 140 are opposed to each other.

  Specifically, as shown in FIGS. 18 and 19, in the base chassis 101, a torsion coil spring 116 is inserted into the back side of the left and right side walls 111 and 112, and the top chassis 102 and the ink ribbon cartridge holder 7 are rotatable. Supporting protrusions 117 and 117 to be supported are protruded.

  The top chassis 102 supported by the support protrusion 117 is formed in a substantially rectangular plate shape, and a thermal head 140 protruding toward the base chassis 101 is formed as shown in FIGS. Further, the top chassis 102 has a first locking projection 118 locked to the base chassis 101 facing the urging force of the torsion coil spring 116 on the front side surface, and a switching mechanism 190 described later on the left and right side surfaces. A second locking projection 119 that is locked to the locking piece 201 is formed.

  Further, the top chassis 102 is provided with locking pieces 121 and 121 which are locked to the rotation restricting pieces 120 and 120 provided in the vicinity of the support protrusions 117 and 117 of the left and right side walls 111 and 112 of the base chassis 101 on both left and right sides. Is formed. The top chassis 102 is restricted in the rotation region with respect to the base chassis 101 by the engagement pieces 121 and 121 being engaged with the rotation restriction pieces 120 and 120. As the rotation area of the top chassis 102 is restricted, the rotation areas of the top plate 6 and the ink ribbon cartridge holder 7 that are rotated together with the top chassis 102 are also restricted.

  Specifically, the rotation area of the top chassis 102 is restricted so as to be opened at an acute angle with respect to the base chassis 101 as shown in FIG. As a result, the top plate 6 and the ink ribbon cartridge holder 7 rotated together with the top chassis 102 are also opened at an acute angle with respect to the base chassis 101. At this time, the ink ribbon cartridge holder 7 is conveyed to the insertion / removal position of the ink ribbon cartridge 2 facing outward from the front surface 3a side of the apparatus main body 3 of the printer apparatus 1. Since the ink ribbon cartridge holder 7 transported to the insertion / removal position is opened at an acute angle with respect to the apparatus main body 3 and faces outward from the front surface 3a side, the ink ribbon cartridge 2 can be easily inserted and removed. it can. When the top chassis 102 is rotated to a position where it closes the base chassis 101, the ink ribbon cartridge holder 7 faces the mounted ink ribbon cartridge 2, and the ink ribbon 10 faces the thermal head 140 and the photographic paper 4. Transport to printing position.

  The ink ribbon cartridge holder 7 engaged with the top chassis 102 is formed by bending a sheet metal, and a pair of guide support portions 125 for supporting the guide portions 31 formed on both side surfaces of the ink ribbon cartridge 2 described above. 125, a connecting portion 126 that spans between the guide support portions 125, 125, and support piece portions 127, 127 that extend from the guide support portions 125, 125 to the back side and are rotatably supported by the base chassis 101. Is provided.

  The guide support part 125 guides insertion / removal of the ink ribbon cartridge 2 by supporting the guide parts 31 swelled from both side surfaces of the ink ribbon cartridge 2 and holds the cartridge body 13 in the ink ribbon cartridge holder 7. Is. The guide support part 125 is formed in a substantially U-shaped cross section, and guides the entry into the ink ribbon cartridge holder 7 while supporting the lower surface, side surface, and upper surface of the guide part 31. Further, the guide support part 125 is a receiving part 125 a whose lower surface receives the lower surface of the guide part 31. The receiving portion 125a has a front side end portion of the apparatus main body 3 protruding forward from the upper surface 125b and bent downward so that the guide portion 31 can be easily pulled. In addition, the back end of the side surface 125 c of the guide support portion 125 is bent to the entry region of the guide portion 31, and the guide portion 31 of the ink ribbon cartridge 2 that has entered deep into the ink ribbon cartridge holder 7 is abutted.

  The guide support portion 125 has a gap between the receiving portions 125a and 125a provided on the pair of guide support portions 125 and 125, that is, the distance between the side surfaces 125c and 125c is between the guide portions 31 and 31 of the cartridge main body 13. The distance is approximately the same as or slightly longer. That is, if the distance between the receiving portions 125a and 125a is shorter than the distance between the guide portions 31 and 31, the cartridge main body 13 cannot enter, and the distance between the receiving portions 125a and 125a is between the guide portions 31 and 31. This is because if the distance is longer than the distance, the cartridge body 13 rattles in the ink ribbon cartridge holder 7. The width of the receiving portion 125a is substantially the same as or slightly shorter than the width of the guide portion 31. That is, if the width of the receiving portion 125 a is longer than the width of the guide portion 31, the gap between the guide portion 31 and the side surface 125 c of the guide support portion 125 is excessively opened, and the width of the receiving portion 125 a is larger than the width of the guide portion 31. If the length is too short, the cartridge body 13 cannot be held firmly, and the pressed portion 66 protruding from the lower surface of the guide portion 31 cannot be pressed.

  The guide support portion 125 supports the ink ribbon cartridge 2 so that the receiving portion 125 a presses the pressed portion 66 of the spool lock 61 protruding from the opening 33 formed on the lower surface of the guide portion 31. (See FIG. 11). Accordingly, the ink ribbon cartridge 2 mounted on the ink ribbon cartridge holder 7 can rotate the supply side spool 11 and the take-up side spool 12.

  The guide support portion 125 is provided with a locking projection 128 that restricts the rotation region of the ink ribbon cartridge holder 7 by being locked to the left and right side walls 111 and 112 of the base chassis 101 on the side surface 125c. ing. The locking projection 128 is movably engaged with a long hole 129 that is opened in the vertical direction on the left and right side walls 111 and 112 of the base chassis 101. When the ink ribbon cartridge holder 7 is rotated upward with respect to the base chassis 101 together with the top chassis 102, the locking projection 128 is locked to the upper end of the long hole 129. Accordingly, the rotation of the ink ribbon cartridge holder 7 is restricted at a position where the ink ribbon cartridge holder 7 is rotated at an acute angle with respect to the base chassis 101, and the ink ribbon cartridge holder 7 is stopped at the insertion / removal position facing outward from the front surface 3 a of the apparatus body 3.

  The connecting portion 126 disposed between the pair of guide support portions 125, 125 constitutes the upper surface of the ink ribbon cartridge holder 7, and the thermal head 140 provided in the top chassis 102 is inserted in the center portion. A head opening 130 is provided. Further, the connecting portion 126 has a temporary fixing convex portion 131 that engages with a temporary fixing concave portion 35 provided on the upper surface 13 b of the cartridge main body 13 on the back side of the apparatus main body 3 with respect to the head opening portion 130. (See FIG. 24, FIG. 37, etc.).

  The temporary fixing convex portion 131 determines the position of the ink ribbon cartridge 2 in the ink ribbon cartridge holder 7 by engaging with the temporary fixing concave portion 35, and the cartridge main body 13 guides to the guide support portions 125, 125. When the guide portion 31 and the bent portion of the side surface 125c of the guide support portion 125 are brought into contact with each other, the temporary fastening concave portion 35 is engaged. Thus, when the ink ribbon cartridge 2 is conveyed into the apparatus main body 3, the ink ribbon cartridge 2 is positioned in the apparatus main body 3 in the positioning holes 72 and 73 provided in the lower surface portion 13c of the cartridge main body 13. The second positioning projections 162 and 163 can be easily inserted. The same effect can be obtained by forming a temporary fixing convex portion on the ink ribbon cartridge 2 and forming a temporary fixing concave portion on the connecting portion 126 of the ink ribbon cartridge holder 7.

  As shown in FIG. 16, the connecting portion 126 is provided with a protective plate 132 that covers the thermal head 140 protruding from the top chassis 102 on the front surface 3 a side of the apparatus main body 3 with respect to the head opening 130. Yes. Since the top plate 102 and the ink ribbon cartridge holder 7 face the outside from the front surface 3a side when the top chassis 102 and the ink ribbon cartridge holder 7 are rotated upward, the top plate 102 is opened when the top plate 6 is opened. In order to prevent the thermal head 140 provided so as to be more drooping toward the ink ribbon cartridge holder 7 side from being exposed and accidentally touching the user's hand, the user is injured or the thermal head 140 is damaged. Is.

  The protection plate 132 is formed in a rectangular plate shape, and both end portions in the longitudinal direction are supported by the both side surfaces 125c and 125c of the guide support portion 125, whereby the support portions for the both side surfaces 125c and 125c on the connecting portion 126. The side surface portion 132b on the back side can be rotated in the vertical direction with the rotation fulcrum 132a. The protective plate 132 is formed with a pressing piece 133 that rotates upward by pressing the connecting portion 126. The pressing piece 133 has flexibility by notching the main surface of the protection plate 132 in a long shape in the short direction and bending it downward, so that the protection plate 132 is always against the connecting portion 126. Is pressed upward.

  As shown in FIGS. 2 and 20, when the top chassis 102 is rotated upward, the protective plate 132 is moved so that the pressing piece 133 presses the connecting portion 126 and the side surface portion 132b on the back side is moved upward. It is slidably contacted with the thermal head 140 and rotated upward. As a result, the protection plate 132 can shield the thermal head 140 from the front surface 3a and prevent it from being touched by the user's eyes. Therefore, the printer apparatus 1 can prevent injuries or accidents caused by the user touching the thermal head 140 when the top chassis 102 is opened.

  When the top chassis 102 closes the base chassis 101, the protection plate 132 is slidably contacted with the side edge of the mounting opening 153 of the thermal head 140 opened in the top chassis 102, as shown in FIG. While facing the pressing force of the piece 133, it is rotated to the connecting portion 126 side. At this time, the ink ribbon cartridge holder 7 is attached to the main surface 110 side of the base chassis 101 by contacting the main surface of the top chassis 102 and the protection plate 132 in opposition to the pressing force of the pressing piece 133. Will be energized.

  Support piece portions 127 and 127 that extend from the guide support portions 125 and 125 to the back side and are rotatably supported by the base chassis 101 protrude from the left and right side walls 111 and 112 of the base chassis 101 at the end portions on the back side. A support hole (not shown) that is rotatably supported by the provided support protrusions 117 and 117 is formed, and a connecting member 135 that is connected to the top chassis 102 is locked to the lower surface.

  As shown in FIG. 20, the connecting member 135 that connects the top chassis 102 and the ink ribbon cartridge holder 7 is made of a resin member that is curved in a bow shape, and is connected to the top chassis 102 on one side. An arm portion 135a curved toward the back side is extended. The arm 135a is provided with a projecting projection 136 that pivots upward by engaging the support piece 127 of the ink ribbon cartridge holder 7. The rotation protrusion 136 protrudes from the side surface of the arm portion 135a, and comes into contact with the support piece portion 127 of the ink ribbon cartridge holder 7 from below when the top chassis 102 is rotated upward. Accordingly, the connecting member 135 connects the ink ribbon cartridge holder 7 to the top chassis 102 and rotates the ink ribbon cartridge holder 7 upward in conjunction with the rotation of the top chassis 102.

  As described above, the top chassis 102 is restricted in rotation by the engagement piece 121 being engaged with the rotation restriction piece 120 formed in the base chassis 101, and the ink ribbon cartridge holder 7 is supported by the guide. The locking protrusion 128 provided on the side surface 125c of the portion 125 is locked in the long holes 129 provided in the left and right side walls 111 and 112 of the base chassis 101, so that the rotation is restricted and the ink ribbon cartridge 2 is inserted. Restrained to escape position. The top chassis 102 and the ink ribbon cartridge holder 7 have a larger rotation amount in the top chassis 102. Further, the rotation protrusion 136 of the connecting member 135 is engaged with the support piece 127 after the top chassis 102 is rotated upward from the position where the base chassis 101 is closed to rotate the ink ribbon cartridge holder 7.

  That is, the top chassis 102 rotates by a predetermined amount when the engagement with the base chassis 101 is released, and the rotation protrusion 136 of the connecting member 135 is locked to the lower surface of the support piece 127 along the way, It is connected to the ink ribbon cartridge holder 7. Therefore, since the top chassis 102 is rotated in advance with respect to the ink ribbon cartridge holder 7, when the top chassis 102 is rotated to the rotatable region, as shown in FIG. 20, the top chassis 102 and the base chassis 101 are rotated. Ink ribbon cartridge holder 7 is positioned between the two.

  When the top chassis 102 is rotated from above to the base chassis 101 side, the top chassis 102 is rotated downward together with the ink ribbon cartridge holder 7, and the ink ribbon cartridge holder 7 is rotated to the printing position in the apparatus main body 3. Further, only the top chassis 102 is rotated downward until the base chassis 101 is closed.

  In addition, the connecting member 135 has a gear portion 137 formed on the arm portion 135a. The gear portion 137 is supplied from the gear opening 47 of the ink ribbon cartridge 2 mounted in the ink ribbon cartridge holder 7 via a take-up gear 138 provided in the base chassis 101. When the ink ribbon cartridge 2 is removed, the supply-side spool 11 is rotated in the direction of arrow C in FIG. 21 where the ink ribbon 10 is rewound when the top chassis 102 is rotated upward. The slack of the ink ribbon 10 is removed.

  That is, as described above, when the ink ribbon cartridge holder 7 rotates the ink ribbon cartridge 2 from the printing position to the insertion / removal position, the ink ribbon cartridge holder 7 is rotated upwards to some extent before being supported by the rotation protrusion 136. Locked to the piece 127. At this time, the gear portion 137 formed on the arm portion 135a of the connecting member 135 engages with the ratchet gear 17 of the supply-side spool 11 facing the gear opening 47 of the ink ribbon cartridge 2 via the take-up gear 138. Then, the supply side spool 11 is rotated in the rewind direction of the ink ribbon 10.

  Specifically, when the gear portion 137 is rotated upward, the small-diameter gear 138a of the winding gear 138 disposed in the base chassis 101 is engaged with the gear portion 137 and rotated in the direction of arrow G in FIG. Is done. Then, the large-diameter gear 138b rotated together with the small-diameter gear 138a is also rotated in the same direction, and the ratchet gear 17 engaged with the large-diameter gear 138b is rotated in the direction of arrow C in FIG. The At this time, the top chassis 102 is rotated upward in the thermal head 140, the head cover 148, and the cover member 149 that have entered the opening 40 of the ink ribbon cartridge 2 and pulled out the ink ribbon 10 to form a ribbon path. As a result, it is retracted from the opening 40.

  Therefore, when the ink ribbon cartridge 2 is detached from the ink ribbon cartridge holder 7, the ink ribbon cartridge 2 takes up the ink ribbon 10 pulled out as shown in FIG. 21 by opening the top chassis 102 as shown in FIG. Therefore, the ink ribbon cartridge holder 7 can be immediately discharged.

  Here, the thermal head 140 protruding from the top chassis 102 on the base chassis 101 side will be described. As shown in FIG. 23, the thermal head 140 includes a heat radiating member 141 that radiates heat when the color material is thermally transferred, and a head portion 143 that applies thermal energy to the ink ribbon 10.

  The heat dissipating member 141 dissipates heat energy generated from the head portion 143 when the color material is thermally transferred. The heat radiating member 141 is made of a material having high thermal conductivity such as aluminum.

  The head portion 143 provided on the heat radiating member 141 includes a glass layer, a heating resistor provided on the glass layer, a pair of power source and signal electrodes provided on both sides of the heating resistor, and a heating resistor. A resistor protective layer provided on the top and the periphery of the heating resistor is provided, and a plurality of electrodes are formed at minute intervals along the longitudinal direction of the head portion 143. The head portion 143 has a substantially arc-shaped protrusion 146 formed on the outer surface facing the ink ribbon 10, and applies heat energy of the heating resistor to the ink ribbon 10 from the protrusion 146. The thermal head 140 can improve the contact with the ink ribbon 10 when the ink ribbon 10 is heated by forming a substantially arc-shaped protrusion 146 on the head portion 143.

  As shown in FIG. 17, in the thermal head 140, when the top chassis 102 closes the base chassis 101, the projection 146 of the head portion 143 is disposed in the base chassis 101 via the ink ribbon 10. It is confronted with. Then, when the photographic paper 4 and the ink ribbon 10 are conveyed in a direction orthogonal to the longitudinal direction of the head portion 143, the thermal head 140 heats the ink ribbon 10 with a heating resistor, and yellow (Y), magenta ( M) and cyan (C) dyes are sequentially thermally transferred to the receiving layer 4 b of the photographic paper 4.

  As shown in FIG. 16, the thermal head 140 is inserted into the opening 40 of the ink ribbon cartridge 2, thereby forming a ribbon path serving as a travel path of the ink ribbon 10 extended to the opening 40. A head cover 148 is provided. The head cover 148 is a substantially rectangular plate made of synthetic resin whose longitudinal length is substantially the same as the longitudinal length of the thermal head 140, and the longitudinal direction of the thermal head 140 and the longitudinal direction of the head cover 148 are aligned. One main surface is attached from the back side. Further, as shown in FIG. 24, the head cover 148 is formed with a guide portion 148a which is curved in a substantially L shape so that the front end surface faces the back side at the lower edge, and the front end surface is formed in an arc shape. Yes. The guide portion 148a is provided at a position substantially parallel to the head portion 143 of the thermal head 140, and guides the ink ribbon 10 to run substantially parallel to the head portion 143.

  As shown in FIG. 25, the head cover 148 enters the opening 40 of the ink ribbon cartridge 2 together with the thermal head 140 when the top chassis 102 closes the base chassis 101. At this time, the head cover 148 forms a ribbon path by the guide portion 148a entering while pressing the ink ribbon 10 extending in the opening 40. Specifically, in the head cover 148, a guide portion 148 a serving as an entry end to the opening 40 presses the ink ribbon 10 extending between the supply side spool storage portion 23 and the take-up side spool storage portion 24. Thus, the platen roller 155 and the thermal head 140 are guided so as to travel in a direction substantially orthogonal to the facing direction. In the printer apparatus 1, when the ink ribbon 10 and the photographic paper 4 are conveyed from the back side to the front side of the apparatus main body 3, printing is performed by being heated by the thermal head 140. Therefore, the ink ribbon 10 travels in parallel in the direction substantially perpendicular to the direction in which the platen roller 155 and the thermal head 140 face each other and in parallel before printing, and the adhesion between the two is improved. Be improved. As a result, the printer apparatus 1 can improve the printing characteristics.

  As shown in FIG. 16, the thermal head 140 has a cover member 149 made of synthetic resin attached to the front side. The cover member 149 has a lower edge formed in a substantially arc shape, and is provided at a position substantially parallel to the head portion 143 of the thermal head 140, similarly to the head cover 148. The cover member 149 passes over the thermal head 140 and slides the ink ribbon 10 guided to the take-up spool 12 by a ribbon guide 165 described later. Further, the cover member 149 is in contact with the side surface portion 132b on the back side of the protection plate 132 provided on the ink ribbon cartridge holder 7, and the thermal head 140 is covered from the front surface 3a side.

  Further, the thermal head 140 is slid on flanges 156 provided on a rotating shaft 155a that supports the platen roller 155 at both ends in the longitudinal direction of the cover member 149, whereby the head portion 143 and the platen roller 155 are moved. A sliding piece 150 is formed for positioning so as to face each other. The sliding piece 150 is made of a long metal plate, and is provided so that the tip portion protrudes below the head portion 143 of the thermal head 140 as shown in FIGS. 16 and 20. A tip end portion of the sliding piece 150 is formed in a tapered shape, and is a sliding contact portion 151 that is slidably contacted with a flange portion 156 of a platen roller 155 disposed on the main surface 110 of the base chassis 101 so as to be movable up and down. ing.

  The sliding piece 150 protrudes downward from the left and right end portions of the opening 153 of the top chassis 102, and has a thermal head 140, a head cover 148, and a cover at a connecting portion 152 formed integrally with the sliding piece 150. Members 149 are connected and integrated with the top chassis 102. The sliding piece 150 enters the opening 40 of the ink ribbon cartridge 2 attached to the ink ribbon cartridge holder 7 together with the thermal head 140 and the like when the top chassis 102 is closed. At this time, since the sliding pieces 150 are provided at both ends of the thermal head 140 in the longitudinal direction, the sliding pieces 150 do not come into contact with the ink ribbon 10 disposed in the opening 40, and in the width direction of the ink ribbon 10. The sliding contact portion 151 is rotated to a position where the sliding contact portion 151 can slide on the flange portion 156 of the platen roller 155 through both sides.

  Next, the platen roller 155 that faces the head portion 143 of the thermal head 140 will be described. The platen roller 155 has an elastic cylindrical body supported by a metal rotating shaft 155a, and both ends of the rotating shaft 155a are inserted into the left and right side walls 111 and 112 of the base chassis 101 and are switched later. The main surface 110 of the base chassis 101 can be raised and lowered by being supported by the mechanism 190. Further, as shown in FIG. 19, flange portions 156 are formed at both ends of the rotating shaft 155 a so as to slide on the sliding piece 150 provided integrally with the thermal head 140 on the top chassis 102.

  The thermal head 140 and the platen roller 155 are configured so that the sliding piece 150 passes through the opening 40 of the ink ribbon cartridge 2 and is opposed to the flange portion 156 of the platen roller 155 when the top chassis 102 closes the base chassis 101. . Further, the thermal head 140 is opposed to the platen roller 155 through the ink ribbon 10 extending through the opening 40 by inserting the opening 40 of the ink ribbon cartridge 2. At this time, the platen roller 155 has the rotating shaft 155a lowered to the main surface 110 side of the base chassis 101 by the switching mechanism 190, as shown in FIGS. 26 and 27. The head portion 143 of the thermal head 140 is opposed with a slight clearance. Next, as shown in FIGS. 28 and 29, when the platen roller 155 is raised by the switching mechanism 190, as shown in FIG. 30 (B), the rotation of the platen roller 155 against the sliding contact portion 151 of the sliding piece 150 is performed. A flange portion 156 provided on the shaft 155a is slidably contacted. As a result, since the flange portion 156 is guided by the sliding piece 150, the platen roller 155 can abut the head portion 143 of the thermal head 140 with high accuracy.

  Thereafter, between the head portion 143 and the platen roller 155, the photographic paper 4 previously conveyed to the back surface 3c side is conveyed to the front surface 3a side, and a printing operation is performed. When the photographic paper 4 is transported to the back surface 3c side of the apparatus main body 3 or when the printed photographic paper 4 is discharged out of the apparatus main body 3, the rotating shaft 155a is lowered by the switching mechanism 190, and the head portion 143. And the platen roller 155 are separated from each other (FIG. 30A).

  Next, the cartridge support unit 160 disposed on the main surface 110 of the base chassis 101 and supporting the ink ribbon cartridge 2 conveyed to the printing position will be described. The cartridge support unit 160 supports the cartridge body 13 when the ink ribbon cartridge 2 mounted in the ink ribbon cartridge holder 7 is transported into the apparatus body 3 and positions the cartridge body 13 at the printing position, and extends the opening 40. Further, a ribbon path serving as a travel path of the ink ribbon 10 is formed.

  The cartridge support unit 160 is disposed on the main surface 110 of the base chassis 101 as shown in FIG. Further, as shown in FIG. 13, the cartridge support unit 160 includes a unit main body 161 formed in a substantially rectangular shape, and first and second units that are provided at both ends in the longitudinal direction of the unit main body 161 to position the cartridge main body 13. Positioning projections 162, 163, a detection switch 164 for detecting the type of the ink ribbon cartridge 2 according to the type of the ink ribbon 10 accommodated in the cartridge main body 13, and the opening 40 of the cartridge main body 13. A ribbon guide 165 that is inserted into the ribbon guide to form a ribbon path is formed.

  The unit main body 161 is positioned on the front surface 3 a side of the apparatus main body 3 by being disposed on the main surface 110 of the base chassis 101. The unit main body 161 is formed in a substantially rectangular plate shape, and support surface portions 166 and 166 for supporting the mounting surface 70 of the cartridge main body 13 are formed on both ends in the longitudinal direction. The support surface portion 166 has first and second positioning projections 162 and 163 projectingly inserted into first and second positioning holes 72 and 73 formed in the mounting surface 70 of the cartridge body 13. Yes. Each support surface portion 166 serves as a reference surface for positioning the ink ribbon cartridge 2 conveyed to the printing position when the placement surface 70 of the cartridge body 13 is placed.

  Since the first and second positioning protrusions 162 and 163 have a substantially conical shape, the first and second positioning protrusions 162 and 163 can be easily engaged with the first and second positioning holes 72 and 73, and The cartridge body 13 can be positioned by being inserted to the back of the second positioning holes 72 and 73. The first and second positioning projections 162 and 163 have the second positioning hole 73 formed in a long hole shape, and therefore the first positioning projection 162 is inserted into the first positioning hole 72. Thus, even if the butting accuracy between the second positioning hole 73 and the second positioning convex portion 163 is misaligned, the misalignment is absorbed.

  In addition, the first and second positioning protrusions 162 and 163 are inserted into the first and second positioning holes 72 and 73 so that the ink ribbon cartridge 2 is positioned. The traveling gear 212 of the traveling mechanism 210 and the ratchet gear 17 of the take-up spool 12 facing outward from the gear opening 48 of the ink ribbon cartridge 2 are engaged, and the ink ribbon 10 can travel. (See FIG. 26).

  A detection switch 164 for identifying the type of the ink ribbon cartridge 2 is provided in the vicinity of the second positioning convex portion 163. The detection switch 164 has one or a plurality of detection pins 167 protruding from the ID hole 74 formed in the cartridge body. As described above, the detection pin 167 is inserted or abutted into the ID hole 74 that is opened or closed in accordance with the type of the ink ribbon cartridge 2, thereby detecting the pressing state of the printer device 1, and the ink ribbon cartridge 2. Type discrimination is performed.

  Specifically, the detection switch 164 corresponds to the ID hole 74 of the ink ribbon cartridge 2 that indicates whether the detection pin 167 is wound with the wide ink ribbon 10W or the narrow ink ribbon 10N. Provided. As described above, the ID hole 74 is opened when the narrow ink ribbon 10N is wound, and is closed when the wide ink ribbon 10W is wound. Accordingly, the detection switch 164 detects that the detection pin 167 is pressed when the ink ribbon cartridge 2 is transported to the printing position, so that the ink ribbon cartridge 2 wound with the wide ink ribbon 10W is mounted. By detecting that the detection pin 167 is not pressed, it can be seen that the ink ribbon cartridge 2 around which the narrow ink ribbon 10N is wound is mounted.

  The ribbon guide 165 that guides the ink ribbon 10 of the ink ribbon cartridge 2 conveyed to the printing position forms a ribbon path of the ink ribbon 10 in the apparatus main body 3 by supporting the ink ribbon 10 in the width direction. And formed so as to protrude in the direction toward the upper side of the base chassis 101 substantially orthogonal to the traveling direction of the ink ribbon 10. The ribbon guide 165 is formed at a position corresponding to the opening 40 of the cartridge body 13 and is inserted into the opening 40 when the ink ribbon cartridge 2 is transported to the printing position. The ribbon guide 165 is positioned on the front surface 3 a side of the apparatus main body 3, that is, on the take-up side spool storage portion 24 side of the thermal head 140 inserted through the opening 40.

  The ribbon guide 165 is provided with a guide roller 168 at the upper end portion across the width direction of the ink ribbon 10. The guide roller 168 is formed at the upper end of the ribbon guide 165 to constitute a ribbon path of the ink ribbon 10 and ensure smooth running of the ink ribbon 10.

  When the ink ribbon cartridge holder 7 loaded with the ink ribbon cartridge 2 is transported to the printing position when the top chassis 102 is closed, the ribbon guide 165 has an opening 40 of the cartridge main body 13 as shown in FIG. The guide roller 168 is inserted through the ink ribbon 10 and extends in the opening 40 to support the ink ribbon 10 in the width direction. As a result, the ribbon guide 165 steeply raises the ink ribbon 10 guided by the head cover 148 of the thermal head 140 and extending between the head portion 143 and the platen roller 155 above the base chassis 101, and takes up the winding side. The ink ribbon 10 is guided to substantially the same height as the slit 50 guided to the spool storage unit 24.

  When the ink ribbon 10 passes through the head portion 143 of the thermal head 140, it is steeply raised by the ribbon guide 165 and guided upward, so that the ink ribbon 10 is sandwiched between the head portion 143 and the platen roller 155 to the photographic paper 4. After being thermocompression bonded, it can be efficiently peeled from the photographic paper 4 conveyed to the front surface 3a side of the apparatus main body 3. At this time, the ink ribbon 10 is thermocompression-bonded to the photographic paper 4 by the head portion 143 of the thermal head 140 and is then supported by the lower edge formed in a substantially arc shape of the cover member 149 together with the photographic paper 4 and the front surface 3a. And then peeled off from the photographic paper 4 by the ribbon guide 165. Therefore, the ink ribbon 10 is cooled during the period from the heating by the head portion 143 until it is peeled off, and thus the ink ribbon 10 is easily peeled off from the photographic paper 4. That is, the ink ribbon 10 is poorly peelable immediately after the ink ribbon is heated, but the ink ribbon 10 is guided to the lower edge of the cover member 149 so that it adheres to the photographic paper 4 even after being heated by the head portion 143. Since it peels after driving | running | working and having cooled, it peels efficiently.

  Since the lower edge of the cover member 149 is formed in a substantially arc shape, the ink ribbon 10 is guided to rise smoothly and accidents such as cutting are prevented.

  As described above, the ink ribbon cartridge holder 7 and the thermal head 140 are provided on the top chassis 102 that is rotated in the vertical direction with respect to the base chassis 101, and the ink ribbon cartridge 2 is conveyed in the vertical direction to move from the insertion / removal position to the printing position. In addition, by providing the ribbon guide 165 in the base chassis 101, the ink ribbon 10 that travels in the apparatus main body 3 by the thermal head 140 and the ribbon guide 165 can be traveled only by transporting the ink ribbon cartridge 2 to the printing position. A ribbon path that becomes a path can be formed. Therefore, the ink ribbon cartridge 2 does not need to be provided with a mechanism for forming a ribbon path when mounted in the printer apparatus 1.

  Further, on the front wall 113 of the base chassis 101, as shown in FIG. 17, a paper supply / discharge roller 170 and a sub-roller 171 that form the printing paper 4 on the front side 3 a of the apparatus main body 3 are formed. The paper supply / discharge rollers 170 pull out the photographic paper 4 from the photographic paper tray 5 mounted from the front surface 3a of the apparatus main body 3, and convey the photographic paper 4 from the front surface 3a side to the back surface 3c side. To the front surface 3a side. The sub-roller 171 is for discharging the photographic paper 4 in the apparatus main body 3 to the outside of the apparatus main body 3 together with the paper supply / discharge roller 170. Further, the apparatus body 3 has an opening 8 in which the photographic paper tray 5 is mounted below the paper supply / discharge roller 170, and the photographic paper 4 stored in the photographic paper tray 5 is placed under the paper supply / discharge roller 170. Located on the side.

  The paper supply / discharge roller 170 has a roller portion 170a that comes into contact with the photographic paper 4 and a shaft portion 170b that supports the roller portion 170a. The roller portion 170a is formed of a hollow cylindrical body made of a rubber member, and is inserted and supported by the shaft portion 170b. Further, both ends of the shaft portion 170b are rotatably supported by the front wall 113 of the base chassis 101, and a paper supply / discharge gear 172 is provided at an end portion protruding to the left side wall 111 side. The paper supply / discharge roller 170 is driven by rotating the paper supply / discharge gear 172 to a gear train 227 of the transport mechanism 220 described later.

  Further, as shown in FIGS. 16, 24, and the like, a pressing lever 173 that presses the photographic paper 4 stored in the photographic paper tray 5 against the paper supply / discharge roller 170 is formed on the front wall 113. The pressing lever 173 is inserted into the photographic paper tray 5 when the photographic paper tray 5 is mounted in the opening 8, and presses the photographic paper 4 upward to press against the paper supply / discharge roller 170, so that the photographic paper tray 5 The photographic paper 4 is pulled out from the inside into the apparatus main body 3. The pressing lever 173 includes a pressing portion 173a made of a linear body formed in a substantially rectangular shape, and a shaft portion 173b that supports the pressing portion 173a. The pressing portion 173 a protrudes toward the front surface 3 a of the apparatus main body 3 and is inserted into the photographic paper tray 5. The shaft portion 173b is rotatably supported by the main surface 110 of the base chassis 101 while the pressing portion 173a made of a linear body is wound around the shaft portion 173b. Further, the shaft 173b has an engaging projection 174 formed at the end protruding toward the left side wall 111, and is engaged with the cam gear 226 of the transport mechanism 220 (see FIGS. 32 and 34). The shaft portion 173b is urged to rotate downward by pressing the other end of a coil spring (not shown) whose one end is locked to the main surface 110 of the base chassis 101. . When the cam lever 226 is driven, the engaging protrusion 174 is guided by the cam shape formed on the cam gear 226, and the shaft 173b and the pressing portion 173a are rotated in the vertical direction.

  The front wall 113 is provided with a locking member (not shown) for locking the first locking projection 118 protruding from the front side surface of the top chassis 102. The locking member is slidably disposed in the left-right direction of the base chassis 101, and is urged by the urging member to either the left or right that locks the first locking projection 118 of the top chassis 102. The locking member is connected to the open button 107 of the apparatus main body 3, and when the open button 107 is slid, the engagement with the first locking protrusion 118 is released, and the top chassis 102 is rotated upward. It is possible to move.

  On the rear wall 114 side of the base chassis 101, as shown in FIGS. 18 and 19, a switching / running motor 180 serving as a drive source for the switching mechanism 190 for moving the platen roller 155 up and down and the traveling mechanism 210 for traveling the ink ribbon 10. And a capstan motor 181 serving as a drive source for the capstan roller 225 of the transport mechanism 220 for transporting the photographic paper 4 is disposed. The switching / traveling motor 180 is disposed with the drive shaft 180a facing the right side wall 112 of the base chassis 101, and a motor gear 180b is provided at the tip of the drive shaft 180a. The capstan motor 181 is disposed with the drive shaft 181a facing the left side wall 111 of the base chassis 101, and a motor gear 181b is provided at the tip of the drive shaft 181a.

  The switching / traveling motor 180 and the capstan motor 181 drive the switching mechanism 190, the traveling mechanism 210, or the transport mechanism 220 by being driven forward or reversely.

  Next, a switching mechanism 190 that is driven by the switching / traveling motor 180 to raise and lower the platen roller 155 with respect to the thermal head 140 will be described. The switching mechanism 190 is formed on the right side wall 112 of the base chassis 101, and is engaged with a motor gear 180b provided on the drive shaft 180a of the switching / traveling motor 180, as shown in FIGS. 27 and 31A. A step gear 191, a mode switching gear 192 that swings according to the rotational direction of the two-step gear 191, first and second connection gears 193 and 194 that engage with the mode switching gear 192, and a second connection gear A pair of left and right cam gears 195 that engage with 194 and a pair of left and right lifting plates 196 that engage with the cam gear 195 and raise and lower the platen roller 155 are provided.

  The two-stage gear 191 is provided coaxially with the mode switching gear 192, and supports the mode switching gear 192 so as to be rotatable. The two-stage gear 191 has a large-diameter gear 191 a engaged with the motor gear 180 b and a small-diameter gear 191 b engaged with the mode switching gear 192. The mode switching gear 192 is provided with a gear portion 192a at one end of a long plate 192b, and a substantially middle portion of the plate 192b is supported so as to be swingable coaxially with the two-stage gear 191. In the mode switching gear 192, the gear portion 192a swings between a first connecting gear 193 and a third connecting gear 211 that constitutes a travel mechanism 210 of the ink ribbon 10 described later.

  When the two-stage gear 191 is rotated in the direction indicated by the arrow H and the direction opposite to the arrow H in FIGS. 27 and 31A according to the direction of rotation of the switching / traveling motor 180, the mode switching gear 192 has two plates 192b. It swings in the same direction as the step gear 191. As a result, the mode switching gear 192 is engaged with either the first connection gear 193 or the third connection gear 211 at the gear portion 192a. When the mode switching gear 192 is engaged with the first connecting gear 193, the lifting plate 196 is lifted and lowered via the second connecting gear 194 and the cam gear 195.

  The first connecting gear 193 engaged with the mode switching gear 192 is rotatably supported on the right side wall 112 of the base chassis 101. Further, the second connection gear 194 engaged with the first connection gear 193 has a shaft portion 194a disposed between the left and right side walls 111, 112 of the base chassis 101 as shown in FIG. The right side gear part 194b and the left side gear part 194c are formed outside the right side wall 112 at both ends of the shaft part 194a. The right gear portion 194b and the left gear portion 194c are engaged with the right cam gear 195a and the left cam gear 195b, respectively.

  A pair of left and right cam gears 195 for raising and lowering the elevating plate 196 includes a right cam gear 195a engaged with the right gear portion 194b of the second connecting gear 194, and a left cam gear 195b engaged with the left gear portion 194c. The base chassis 101 is rotatably supported on the left and right side walls 111 and 112, respectively. Each of the left and right cam gears 195a and 195b has a cam groove formed on a surface facing each side wall of the base chassis 101, and a right lifting plate 196a and a left lifting plate 196b are engaged with each other.

  The pair of right and left elevating plates 196 includes a right elevating plate 196 a and a left elevating plate 196 b that support both ends of the rotation shaft 155 a of the platen roller 155, and are rotatably supported by the left and right side walls 111 and 112 of the base chassis 101, respectively. Yes. Each elevating plate 196 moves up and down the rotating shaft 155a of the platen roller 155 by rotating integrally with the engaging plate 198 formed with an engaging arm 197 engaged with the cam groove of the cam gear 195. And an elevating plate 199. The engagement plate 198 is rotated in the front-rear direction on the left and right side walls 111 and 112 in accordance with the rotation of the cam gear 195 by engaging an engagement arm 197 extending on the back side with the cam groove. Further, the engagement plate 198 is formed with a locking piece 201 which is locked on the second locking projections 119 formed on the left and right sides of the top chassis 102 on the upper side.

  The lift plate 199 is connected to the engagement plate 198 via the engagement plate 198 and the spring member 200, and can be rotated integrally with the engagement plate 198. The lifting plate 199 is formed with an insertion portion 202 through which the rotation shaft 155a of the platen roller 155 is inserted and supported.

  The rotating shaft 155a of the platen roller 155 inserted through the insertion portion 202 of the elevating plate 199 is inserted through a pressing member 205 that raises the platen roller 155 with respect to the head portion 143 of the thermal head 140 with high accuracy. The pressing member 205 is made of a synthetic resin molded product. As shown in FIGS. 30 and 31B, the pressing member 205 is inserted into the rotating shaft 155a and inserted into the inserting portion 202 of the elevating plate 199. The press part 205b which presses the part 205a to the insertion part 202, and the support part 205c which supports the press member 205 rotatably are provided. The support portion 205c is supported by the right side wall 112 of the base chassis 101 coaxially with the elevating plate 196, and allows the pressing member 205 to rotate. The pressing portion 205b is provided so as to be curved in a substantially S shape between a part of the outer periphery of the cylindrical portion 205a and the support portion 205c. Further, the pressing portion 205b has flexibility and is provided to be curved to press the cylindrical portion 205a against the inner peripheral portion of the insertion portion 202 in the direction of arrow F in FIG.

  The lift plate 199 is inserted with the rotation shaft 155 a of the platen roller 155 through the pressing member 205. When the cam gear 195 is rotated in the direction of arrow I in FIG. 27, the lifting plate 196 is reciprocally rotated in the direction of arrow J and the direction of the opposite arrow J in FIG. Therefore, the elevating plate 196 can move the rotating shaft 155a inserted through the insertion portion 202 of the elevating plate 199 up and down. At this time, since the rotary shaft 155a is pressed against the inner peripheral portion of the insertion portion 202 of the elevating plate 199 by the pressing member 205, the platen roller 155 has no variation in the insertion portion 202 of the rotary shaft 155a, and the thermal head 140 The positional accuracy with respect to the head portion 143 is improved, and the head portion 143 is reliably opposed.

  When the switching / traveling motor 180 is rotated in the forward direction, the switching mechanism 190 rotates the two-stage gear 191 engaged with the motor gear 180b in the direction indicated by the arrow H in FIGS. The plate is also swung in the same direction, and the gear portion 192a is connected to the first connecting gear 193. Thereby, the driving force of the switching / traveling motor 180 is transmitted from the first connecting gear 193 to the second connecting gear 194 and the right cam gear 195a, and the right cam gear 195a is rotated in the direction of arrow I in FIG. The left cam gear 195b engaged with the left gear portion 194c of the second connecting gear 194 is also rotated in the same direction. In the right elevating plate 196a and the left elevating plate 196b engaged with the left and right cam gears 195a and 195b, the engaging arm 197 of each engaging plate 198 is operated by the cam gear 195, and the elevating plate 199 is moved in the direction of arrow J in FIG. The platen roller 155 can be moved up and down by reciprocatingly rotating in the opposite arrow J direction.

  The up / down state of the platen roller 155 is detected when a mode detection switch mounted on a rigid board attached to the left side wall 111 of the base chassis 101 is turned on or off by the left up / down plate 196b.

  Next, the traveling mechanism 210 that travels the ink ribbon 10 will be described. As shown in FIG. 31B, the travel mechanism 210 rotates the third coupling gear 211 that is engaged with the mode switching gear 192 and the take-up spool 12 that is housed in the ink ribbon cartridge 2. A driving gear 212 that drives the ink ribbon 10 by driving, and a fourth connecting gear 213 that connects the third connecting gear 211 and the driving gear 212 are provided.

  The third connection gear 211 is a two-stage gear rotatably attached to the right side wall 112 of the base chassis 101, the large diameter gear is engaged with the mode switching gear 192, and the small diameter gear is the fourth connection gear 213. Is engaged. The fourth connecting gear 213 is also rotatably attached to the right side wall 112 of the base chassis 101.

  As shown in FIG. 19, the traveling gear 212 rotated by the fourth connecting gear 213 includes a cylindrical support portion 212a attached to the right side wall 112 of the base chassis 101, and a right side through the support portion 212a. A shaft portion 212b extending over the inside and outside of the wall 112; a first gear portion 212c that is provided at one end of the shaft portion 212b and engages with the fourth connecting gear 213 outward from the right wall 112; A second gear portion 212d that is provided at the other end of the portion 212b and engages with the take-up spool 12 of the ink ribbon cartridge 2 inside the base chassis 101 (see FIG. 13). The second gear portion 212d is engaged with the ratchet gear 17 facing outward from the gear opening 48 of the take-up side spool storage portion 24 when the ink ribbon cartridge 2 is conveyed to the printing position. The take-up spool 12 can be rotated.

  In the traveling mechanism 210, when the switching / traveling motor 180 is reversed, the two-stage gear 191 engaged with the motor gear 180b is rotated in a direction opposite to the arrow H in FIG. 31B, and the mode switching gear 192 has a plate. The gear portion 192a is connected to the third connecting gear 211 by swinging in the same direction. As a result, the driving force of the switching / travel motor 180 is transmitted from the third connection gear 211 to the fourth connection gear 213 and the travel gear 212, and the first gear portion 212 c and the second gear portion 212 d of the travel gear 212 are transmitted. It is rotated in the direction of arrow K in FIG. Accordingly, the traveling gear 212 can rotate the take-up spool 12 engaged with the second gear portion 212 d in the direction of arrow D for taking up the ink ribbon 10, and the ink ribbon 10 can be rotated from the supply-side spool 11. It travels to the winding side spool 12.

  In the travel draft 210, when the switching / traveling motor 180 is rotated forward, the two-stage gear 191 is rotated in the direction of arrow H, so that the gear portion 192a of the mode switching gear 192 is swung in the same direction. The third connecting gear 211 is separated. As a result, the switching / travel motor 180 and the travel gear 212 are disconnected from each other, so that the take-up spool 12 is stopped and the travel of the ink ribbon 10 is stopped.

  Next, the transport mechanism 220 that transports the photographic paper 4 over and out of the apparatus main body 3 will be described. The transport mechanism 220 is provided on the left side wall 111 of the base chassis 101. As shown in FIGS. 32 and 33, the two-stage gear 221 that engages with the motor gear 181b of the capstan motor 181 described above, and the two-stage gear. A fifth connection gear 222 that engages with 221, a sixth connection gear 223 that engages with the fifth connection gear 222, and a rotation of the sixth connection gear 223 that is supported coaxially with the sixth connection gear 223. A first swing gear 224 that swings in the direction, a capstan roller 225 that is engaged with the first swing gear 224 and transports the photographic paper 4, and a printing lever in which the pressing lever 173 is stored in the photographic paper tray 5. A cam gear 226 that drives the paper 4 to be pressed and a gear train 227 that drives the paper supply / discharge roller 170 are provided.

  The two-stage gear 221, the fifth connection gear 222, and the sixth connection gear 223 are all rotatably supported on the left side wall 111 of the base chassis 101. The first rocking gear 224 supported coaxially with the sixth connecting gear 223 has a substantially long plate 224c, and a substantially intermediate portion in the longitudinal direction of the plate 224c is the sixth connecting gear 223. And is swung in the same direction as the rotational direction of the sixth connecting gear 223. The first rocking gear 224 has a first gear portion 224a and a second gear portion 224b formed at one end and an intermediate portion of the plate 224c. One of the first and second gear portions 224a and 224b is engaged with the capstan roller 225 depending on the swinging direction of the plate, and thereby the rotation direction of the capstan roller 225 is rotated forward or reverse.

  The capstan roller 225 extends in the base chassis 101 from the left side wall 111 to the right side wall 112, and conveys the photographic paper 4 in and out of the apparatus main body 3 according to the rotation direction. The capstan roller 225 includes a roller main body 225 a that is rotatably supported by a support member that protrudes from the main surface 110 of the base chassis 101. As shown in FIG. 16, the roller body 225 a is disposed opposite to the pinch roller 230 that is also supported in parallel in the base chassis 101. The pinch roller 230 is rotatably supported by the left and right side walls 111 and 112 of the base chassis 101 and is supported by an arm member (not shown) that is urged to rotate toward the capstan roller 225 by a spring member. Thus, the capstan roller 225 is pressed. When the transport mechanism 220 is driven, the capstan roller 225 rotates with the pinch roller 230 and transports the photographic paper 4 while sandwiching it. Further, the capstan roller 225 is provided with a roller gear portion 225 b at an end portion facing the outside of the left side wall 111. The roller gear portion 225b is engaged with the first and second gear portions 224a and 224b of the first swing gear 224, and the driving force of the capstan motor 181 is transmitted.

  The capstan roller 225 includes a second swing gear 228 that is supported coaxially and swings in accordance with the rotation direction of the capstan roller 225. The second oscillating gear 228 includes an arm portion 228a supported coaxially with the capstan roller 225, and a gear portion 228b provided at the tip of the arm portion 228a. The arm portion 228a swings in the same direction as the rotation direction of the capstan roller 225, and makes the gear portion 228b contact and separate from the cam gear 226. The gear portion 228 b is always engaged with the roller gear portion 225 b of the capstan roller 225, and transmits the rotational force of the capstan roller 225 to the cam gear 226 when engaged with the cam gear 226. When the capstan roller 225 is rotated in the direction of arrow L in FIG. 32 where the capstan roller 225 conveys the photographic paper 4 to the back surface 3c side of the apparatus main body 3, the arm portion 228a is rotated upward. Thus, the gear portion 228b and the cam gear 226 are engaged. Further, when the capstan roller 225 is rotated in a direction opposite to the arrow L in FIG. 34 when the capstan roller 225 sends the photographic paper 4 to the front surface 3a side of the apparatus main body 3, the arm portion 228a is rotated downward. Thus, the gear portion 228b and the cam gear 226 are separated from each other.

  The cam gear 226 engaged with the second swing gear 228 presses the photographic paper 4 stored in the photographic paper tray 5 against the paper supply / discharge roller 170 side by moving the pressing lever 173 up and down. is there. The cam gear 226 is rotatably supported on the left side wall 111 of the base chassis 101, and a cam groove is formed on the side surface facing the left side wall 111, and the engaging convex part 174 formed on the shaft part 173 b of the pressing lever 173. Are engaged.

  When the capstan roller 225 is rotated in the direction of arrow L in FIG. 32 where the photographic paper 4 is conveyed into the apparatus main body 3, the cam gear 226 is engaged with the second swing gear 228 and rotated. As a result, the pressing lever 173 having the shaft portion 173b engaged with the cam groove of the cam gear 226 rotates the pressing portion 173a upward to feed the photographic paper 4 stored in the photographic paper tray 5 to the paper supply / discharge roller. Press against 170. As a result, only the uppermost photographic paper 4 in contact with the paper supply / discharge roller 170 is fed into the apparatus main body 3 as the photographic paper 4 stored in the photographic paper tray 5.

  The cam gear 226 is provided with an idling portion in which no gear is formed, and the engagement with the second swing gear 228 is released. At this time, the photographic paper 4 is sandwiched between the capstan roller 225 and the pinch roller 230, and the pressing lever 173 has the pressing portion 173 a raised to the paper supply / discharge roller 170 side. Thereafter, when the platen roller 155 is lowered when the photographic paper 4 is discharged out of the apparatus main body 3, the arm portion 196c of the left elevating plate 196b is rotated downward, so that the cam gear 226 moves the stopper piece 229. And is slightly reversed. As a result, the pressing lever 173 engaged with the cam gear 226 is guided by the cam groove, and the pressing portion 173a is lowered (FIG. 34). At this time, the second rocking gear 228 is pressed by the stopper piece 229 and is separated from the cam gear 226, so that the reverse rotation operation due to the reverse rotation of the cam gear 226 does not occur. As a result, the second swing gear 228 and the cam gear 226 are brought into an engageable state again. Then, when the capstan roller 225 is rotated in the direction of arrow L in FIG. 32 in order to draw the photographic paper 4 into the apparatus body 3 again, the second swing gear 228 and the cam gear 226 are rotated, and the pressing lever 173 is raised. Is done.

  As shown in FIGS. 33 and 35, the gear train 227 that drives the paper supply / discharge roller 170 includes a seventh connection gear 232 that engages with the roller gear portion 225 b of the capstan roller 225, and a seventh connection gear 232. And a third swing gear 233 that is supported by the same axis and swings in accordance with the rotational direction of the seventh connecting gear 232, and is engaged with the third swing gear 233 and the feed / discharge roller 170. And an eighth connecting gear 234 engaged with a paper supply / discharge gear 172 formed on the shaft portion 170b.

The seventh connection gear 232 is disposed at a position overlapping the cam gear 226 by being rotatably attached to a support wall attached to the left side wall 111 of the base chassis 101. The seventh connecting gear 232 is a two-stage gear, and a large-diameter gear is engaged with the roller gear portion 225 b of the capstan roller 225, and a small-diameter gear is engaged with the third swing gear 233.
The third oscillating gear 233 engaged with the seventh connecting gear 232 is oscillated by the oscillating plate 233a coaxially supported by the seventh linking gear 232 and oscillatingly, and the oscillating plate 233a. It has the 1st gear part 233b and the 2nd gear part 233c which were provided freely. The swing plate 233a can swing in the same direction as the rotation direction of the seventh connection gear 232, and the first gear portion 233b is brought into contact with and separated from the paper supply / discharge gear 172 in accordance with the swing direction. The second gear portion 233c is brought into contact with and separated from the eighth connection gear 234. The first and second gear portions 232 b and 232 c are always engaged with the small-diameter gear of the seventh connection gear 232 and are rotated according to the rotation of the seventh connection gear 232. Further, the eighth connecting gear 234 is swung to a position where the second gear portion 233c of the third swinging gear 233 can be engaged with the seventh connecting gear 232, so that the second gear portion 233c. And will be disengaged.

  When the capstan roller 225 is rotated in the direction of arrow L in FIG. 33 where the capstan roller 225 conveys the photographic paper 4 into the apparatus main body 3, the seventh connecting gear 232 is rotated in the direction of arrow M in FIG. The As a result, in the third swing gear 233, the swing plate 233a is rotated in the same direction, the first gear portion 233b is engaged with the feed / discharge gear 172 of the feed / discharge roller 170, and the second The gear portion 233c is separated from the eighth connection gear 234. When the seventh connecting gear 232 is rotated in the direction of arrow M in FIG. 33, the paper supply / discharge gear 172 stores the paper supply / discharge roller 170 in the photographic paper tray 5 via the first gear portion 233b. The photographic paper 4 is pulled in and rotated in the direction of arrow N in FIG. At this time, the pressing portion 173a of the pressing lever 173 is inserted into the photographic paper tray 5 and raised. Accordingly, the paper supply / discharge roller 170 can convey the photographic paper 4 sandwiched between the press lever 173 into the apparatus main body 3.

  When the capstan roller 225 is rotated in the direction indicated by the arrow L in FIG. 35 where the capstan roller 225 ejects the photographic paper 4 to the outside of the apparatus body 3, the seventh connecting gear 232 is moved in the direction indicated by the arrow M in FIG. To be rotated. As a result, the third rocking gear 233 is engaged with the eighth connecting gear 234 in which the rocking plate 233a is rotated in the same direction and the second gear portion 233c is engaged with the paper supply / discharge gear 172. The first gear portion 233b is separated from the paper supply / discharge gear 172. When the seventh connecting gear 232 is rotated in the direction of the arrow M in FIG. 35, the paper supply / discharge gear 172 moves the paper supply / discharge roller 170 through the second gear portion 233c and the eighth connection gear 234. It is rotated in the direction of arrow N in FIG. At this time, since the photographic paper 4 is conveyed between the paper supply / discharge roller 170 and the sub-roller 171, the paper supply / discharge roller 170 and the paper supply / discharge gear 172 pull the photographic paper 4 from the photographic paper tray 5. Is rotated in the same direction.

  The printer device 1 having such a conveyance mechanism 220 performs printing while the photographic paper 4 is reciprocated a plurality of times over the front surface 3 a and the back surface 3 c of the apparatus body 3 by the conveyance mechanism 220. In the printing operation of the printer apparatus 1, the transport mechanism 220 pulls out the photographic paper 4 from the photographic paper tray 5 and feeds it into the apparatus main body 3, and the photographic paper 4 transported to the back surface 3 c side of the apparatus main body 3. A printing operation for printing while transporting the paper to the front surface 3a side, a paper returning operation for transporting the printing paper 4 transported to the front surface 3a side to the back surface 3c side, and a printing paper 4 for which printing has been completed. A paper discharge operation for discharging to the front surface 3a of the apparatus main body 3 is performed.

  In the paper feeding operation, as shown in FIG. 32, the platen roller 155 is raised by driving the switching / traveling motor 180 in the forward direction. Next, the capstan motor 181 is driven to rotate forward, and the two-stage gear 221 is rotated in the direction of arrow O in FIG. Then, the sixth connection gear 223 is rotated in the direction of arrow P in FIG. 32 via the fifth connection gear 222 engaged with the two-stage gear 221 and is supported coaxially with the sixth connection gear 223. The first oscillating gear 224 is oscillated in the same direction. As a result, the first gear portion 224a of the first swing gear 224 is engaged with the capstan roller 225, and the roller main body 225a of the capstan roller 225 conveys the photographic paper 4 to the back surface 3c side of the apparatus main body 3. 32 is rotated in the direction of arrow L. The second swinging gear 228 supported coaxially with the capstan roller 225 has the arm portion 228a swinging in the same direction when the roller body 225a is rotated in the direction of arrow L in FIG. 32, and the gear portion 228b. Is engaged with the cam gear 226. The cam gear 226 is rotated in the direction indicated by the arrow Q in FIG. 32 when the driving force is transmitted through the gear portion 228b. The pressing lever 173 engaged with the cam gear 226 rotates the pressing portion 173 a upward to press the photographic paper 4 stored in the photographic paper tray 5 against the paper supply / discharge roller 170.

  On the other hand, the seventh coupling gear 232 engaged with the roller body 225a of the capstan roller 225 is rotated in the arrow M direction when the capstan roller 225 is rotated in the arrow L direction in FIG. The third swing gear 233 supported coaxially with the seventh connecting gear 232 has a swing plate 233a swinging in the same direction, and the first gear portion 232b is a feed / discharge gear of the feed / discharge roller 170. 172 is engaged. Then, when the driving force is transmitted to the paper supply / discharge roller 170 via the first gear portion 232b, the paper supply / discharge gear 172 and the roller portion 170a are rotated in the direction of arrow N in FIG. At this time, since the photographic paper 4 stored in the photographic paper tray 5 is positioned below the paper supply / discharge roller 170, the paper supply / discharge roller 170 is rotated in the direction of arrow N in FIG. It is conveyed to the back surface 3 c side of the apparatus body 3.

  As described above, as shown in FIG. 36, the photographic paper 4 stored in the photographic paper tray 5 is sandwiched between the capstan roller 225 and the pinch roller 230 when conveyed to the back surface 3c side of the apparatus main body 3. Then, the printer apparatus 1 moves to a paper returning operation, and the photographic paper 4 is further conveyed to the back surface 3c side of the apparatus main body 3 by rotating the capstan roller 225 in the direction of arrow L in FIG.

  When the paper returning operation is started, the printer device 1 further rotates the pair of left and right cam gears 195 by further driving the switching / running motor 180 to rotate forward, and the lifting plate 196 guided by the cam gear 195 is rotated. The platen roller 155 is lowered. As a result, the thermal head 140 and the platen roller 155 are separated from each other as shown in FIG. As the capstan roller 225 is rotated in the direction of arrow L in FIG. 37, the photographic paper 4 is conveyed toward the back surface 3c of the apparatus main body 3. When the photographic paper 4 is conveyed to a predetermined position, the capstan roller 225 is stopped under the control of a photo sensor that detects the edge of the photographic paper 4 and an encoder that counts the rotation of the capstan roller 225.

  38, the main chassis 100 is smaller than the apparatus main body 3 in the front-rear direction, and the rear wall of the apparatus main body 3 and the rear side end face of the main chassis 100 are separated from each other by a predetermined clearance C, as shown in FIG. Arranged. The clearance C includes an arcuate guide that guides the photographic paper 4 to the upper side of the apparatus main body 3 when the photographic paper 4 conveyed to the back surface 3 c side of the apparatus main body 3 is discharged from the rear surface of the main chassis 100. A wall 236 is formed. Since the guide wall 236 is disposed with the curved inner surface facing the front surface 3a side of the apparatus body 3, the photographic paper 4 conveyed to the back surface 3c side of the apparatus body 3 is guided upward while sliding. Is done. Thus, when the photographic paper 4 is conveyed to the back surface 3 c side of the apparatus main body 3, the photographic paper 4 is curved while being guided by the guide wall 236 and is stored in the clearance C between the back surface of the apparatus main body 3 and the main chassis 100. The Therefore, the printer apparatus 1 can be reduced in size without increasing the apparatus body 3 in the front-rear direction even when the photographic paper 4 conveyed in the front-rear direction is used.

  Further, when the photographic paper 4 is conveyed to the back surface 3c side of the apparatus main body 3, the switching / running motor 180 is driven in reverse to cue the ink ribbon 10, for example, a yellow (Y) dye layer 10b is formed. It is located between the thermal head 140 and the platen roller 155.

  When the printing operation is started, the printer device 1 further rotates the pair of left and right cam gears 195 when the switching / running motor 180 is further driven to rotate forward, and the lift plate 196 guided by the cam gears 195 is rotated to rotate the platen. Roller 155 is raised. As a result, as shown in FIG. 39, the photographic printing paper 4 and the ink ribbon 10 are held between the thermal head 140 and the platen roller 155.

  Next, the capstan motor 181 is driven in reverse, and the two-stage gear 221 is rotated in the direction of the arrow O. Then, the sixth connection gear 223 is rotated in the counter arrow P direction via the fifth connection gear 222 engaged with the two-stage gear 221, and is supported coaxially with the sixth connection gear 223. The first swing gear 224 is swung in the same direction. As a result, the first gear portion 224a of the first swing gear 224 is separated from the capstan roller 225, the second gear portion 224b is engaged with the capstan roller 225, and the roller body 225a of the capstan roller 225 is moved. The photographic paper 4 is rotated in the direction of the opposite arrow L for conveying the photographic paper 4 to the front surface 3 a side of the apparatus body 3.

  Further, the seventh connecting gear 232 engaged with the roller body 225a of the capstan roller 225 is rotated in the counter arrow M direction when the capstan roller 225 is rotated in the counter arrow L direction. The third swinging gear 233 supported coaxially with the connecting gear 232 of the seventh swinging plate 233a is swung in the same direction and the first gear portion 232b is separated from the paper supply / discharge gear 172, The second gear portion 232 c is engaged with the eighth connection gear 234. Since the eighth connection gear 234 is engaged with the paper supply / discharge gear 172, when the capstan roller 225 is driven, the paper supply / discharge roller is interposed via the seventh connection gear 232 and the eighth connection gear 234. 170 is rotated.

  At this time, the paper supply / discharge gear 172 connected to the seventh connection gear 232 via the eighth connection gear 234 is rotated when the seventh connection gear 232 is rotated in the counter arrow M direction. 172 and the roller part 170a are rotated in the arrow N direction. Further, the photographic paper 4 sandwiched between the capstan roller and the pinch roller 230 and conveyed to the front surface 3a side of the apparatus main body 3 is supplied by the flapper 237 disposed on the main surface 110 of the base chassis 101, It is guided so as to be conveyed between the sub rollers 171 (see FIG. 39). Accordingly, since the photographic paper 4 is transported above the paper supply / discharge roller 170, the front end portion is transported outward from the front surface 3a of the apparatus main body 3 by rotating the paper supply / discharge roller 170 in the direction of arrow N.

  The second swing gear 228 supported coaxially with the capstan roller 225 has the arm portion 228a swinged in the same direction when the roller main body 225a is rotated in the opposite arrow L direction, and the gear portion 228b. Is separated from the cam gear 226 (FIG. 35).

  As described above, in the printer device 1, the thermal transfer is performed by the thermal head 140 in the process in which the printing paper 4 is conveyed from the back surface 3 c of the device body 3 to the front surface 3 a side, and an image is printed. This printing process is performed by thermally transferring the yellow (Y), magenta (M), and cyan (C) dye layers 10 b to 10 d and the protective layer 10 e on which the ink ribbon 10 is formed to the photographic paper 4. Each time the photographic paper 4 is transported once from the back surface 3c to the front surface 3a, thermal transfer of one dye layer or protective layer is performed. Accordingly, in order to print one image, the photographic paper 4 is reciprocated four times between the front surface 3a and the back surface 3c of the apparatus main body 3.

  When the printing paper is conveyed from the back surface 3c to the front surface 3a in the fourth reciprocation and the protective layer 10e is thermally transferred, the paper discharge operation is started as it is. In the paper discharge operation, the platen roller 155 is lowered by the forward rotation of the switching / running motor 180, and the platen roller 155 that has sandwiched the photographic paper 4 and the ink ribbon 10 is separated from the thermal head 140. Similarly to the printing operation, the capstan motor 181 is driven to rotate the capstan roller 225 in the opposite arrow L direction, and the paper supply / discharge roller 170 is rotated in the arrow N direction to print an image. The photographic paper 4 is discharged onto the photographic paper tray 5 from between the paper supply / discharge roller 170 and the sub-roller 171. When it is determined that the photographic paper 4 has been discharged by detecting the edge of the photographic paper 4 with a sensor, the drive of the capstan motor 181 is stopped.

  Next, operations from the mounting of the ink ribbon cartridge 2 to the printing operation and the discharge of the ink ribbon cartridge 2 in the printer apparatus 1 will be described. During standby before the printing operation, in the printer apparatus 1, the engaging member provided on the front wall 113 of the base chassis 101 and the first locking protrusion 118 protruding from the top chassis 102 are engaged. Thus, the top plate 6 and the top chassis 102 are closed so as to face the urging force of the torsion coil spring 116. In the printer 1, the lifting plate 196 of the switching mechanism 190 is swung in the direction of arrow J in FIG. 27 to lower the platen roller 155. Further, the lifting plate 196 is disengaged from the locking piece 201 provided above the engagement plate 198 and the second locking projections 119 formed on the left and right side surfaces of the top chassis 102.

  When the ink ribbon cartridge 2 is mounted, the open button 107 provided on the front surface 3a of the apparatus main body 3 is slid to rotate the top plate 6 upward. When the open button 107 is slid, the engagement between the engagement member of the base chassis 101 and the first locking protrusion 118 of the top chassis 102 is released. Thereby, the top chassis 102 and the top plate 6 are rotated upward by the torsion coil spring 116, and the ink ribbon cartridge holder 7 is exposed outward from the front surface 3a side of the apparatus main body 3 (FIG. 2).

  The ink ribbon cartridge 2 is inserted into the ink ribbon cartridge holder 7 with the grip portion 32 formed on the front surface portion 13a of the cartridge carrier 13 being gripped (FIG. 3). At this time, the ink ribbon cartridge 2 is inserted while the guide portions 31 bulging and formed on the left and right side surfaces are supported by the guide support portion 125 having a substantially U-shaped cross section while supporting the upper and lower surfaces and side surfaces. Since the ink ribbon cartridge 2 is provided with the grip portion 32, the user's thumb is disposed on the upper surface of the grip portion 32 and the user's index finger is disposed on the lower surface of the grip portion 32. The insertion direction to 7 becomes clear. Further, in the ink ribbon cartridge holder 7, the pressed portion 66 of the spool lock 61 protruding downward from the opening portion 33 formed in the lower surface of the guide portion 31 is pressed against the receiving portion 125 a of the guide support portion 125. As a result, the spool lock 61 is disengaged from the ratchet portions 65a and 65b of the elastic engagement pieces 64a and 64b and the ratchet gears 17 and 17 of the supply side spool 11 and the take-up side spool 12, and the supply side spool 11 And the winding side spool 12 is made rotatable. Further, in the ink ribbon cartridge 2, a temporarily fixing convex portion 131 protruding downward from the connecting portion 126 of the ink ribbon cartridge holder 7 is engaged with a temporary fixing concave portion 35 provided on the upper surface 13 b of the cartridge body 13. The As a result, the ink ribbon cartridge 2 is temporarily positioned in the ink ribbon cartridge holder 7, so that when the top chassis 102 is later closed to the base chassis 101 side and is transported to the printing position, the cartridge body 13 The first and second positioning projections 162 and 163 projecting from the apparatus main body 3 can be easily inserted into the positioning holes 72 and 73 provided in the lower surface portion 13c of the ink ribbon cartridge. 2 can be positioned.

  At this time, the protective plate 132 formed on the connecting portion 126 of the ink ribbon cartridge holder 7 is rotated upward, so that the thermal head 140 provided on the top chassis 102 is covered, and the user can start from the front surface 3a. Is not touching the eyes. Therefore, it is possible to prevent contamination caused by the user accidentally touching the head portion 143 of the thermal head 140 and injury due to the head portion 143 that is heated immediately after printing (FIG. 2).

  As described above, since the printer apparatus 1 can mount the ink ribbon cartridge 2 from the front surface 3a side of the apparatus main body 3, the ink ribbon cartridge 2 can be inserted / removed as compared with the type mounted from the side surface of the apparatus main body 3. It is not necessary to secure a space, and the installation space can be saved. Further, since the printer apparatus 1 is not provided with the insertion / removal opening of the ink ribbon cartridge 2 on both the left and right side surfaces of the apparatus main body 3, the traveling mechanism 210 for the ink ribbon 10 and the conveyance mechanism 220 for the photographic paper 4 are disposed on both the left and right side portions. Therefore, the apparatus main body 3 can be downsized.

  By closing the top plate 6, the ink ribbon cartridge 2 mounted on the ink ribbon cartridge holder 7 is conveyed to the printing position of the apparatus main body 3. The ink ribbon cartridge 2 is provided with first and second protrusions projecting from cartridge support units 160 disposed in the apparatus main body 3 in positioning holes 72 and 73 formed in the mounting surface 70 of the cartridge main body 13. The positioning convex portions 162 and 163 are inserted to achieve positioning at the printing position.

  Specifically, when the top plate 6 is closed, the first locking protrusion 118 provided on the front side surface of the top cover 102 is locked to the locking member provided on the front wall 113 of the base chassis 101. The main body 3 is closed against the urging force of the torsion coil spring 116. At this time, in the ink ribbon cartridge holder 7 attached to the top chassis 102, the protective plate 132 provided on the connecting portion 126 is sandwiched between the top chassis 102 and the connecting portion 126. The protective plate 132 is pressed by the top chassis 102 in a direction opposite to the urging direction by the pressing piece 133 because the pressing piece 133 always has an urging force that rotates the protective plate 132 upward with respect to the connecting portion 126. It becomes. For this reason, the urging force of the pressing piece 133 acts on the ink ribbon cartridge holder 7 and the ink ribbon cartridge 2 downward to press the cartridge main body 13 against the cartridge support unit 160 in the apparatus main body 3. Therefore, the mounting surface 70 of the cartridge main body 13 is reliably supported by the support surface portion 166 of the cartridge support unit 160 and positioning within the apparatus main body 3 is achieved. At the same time, the upper shell 21 and the lower shell 22 constituting the cartridge main body 13 are urged in the direction in which they are abutted with each other, so that each support shaft portion 16 of the supply side spool 11 and the take-up side spool 12 formed on the lower shell 22 is provided. And the support wall 42 of the bearing parts 25-28 which support the protrusion 18 and the support pieces 43-46 formed in the upper shell 21 corresponding to the support wall 42 are closely_contact | adhered. Accordingly, each of the support shaft portion 16 and the protrusion 18 of the supply side spool 11 and the take-up side spool 12 is supported by the bearing portions 25 to 28 and the support pieces 43 to 46 so that the supply side spool storage portion 23 or the take-up side spool storage portion 24 can be obtained with high accuracy (FIG. 8).

  Further, in the ink ribbon cartridge 2, the opening state of the ID hole 74 formed in the mounting surface 70 is detected by the detection switch 164 provided in the cartridge support unit 160, and for example, the wide ink ribbon 10W is wound. Whether the ink ribbon 10N is narrow or wound is narrowed.

  When the ink ribbon cartridge 2 is transported to the printing position of the apparatus main body 3, the top chassis 102 is also rotated to the base chassis 101 side together with the top plate 6, so The thermal head 140 provided on the top chassis 102 and the ribbon guide 165 protruding from the main surface 110 of the base chassis 101 are inserted into the opening 40 provided between the spool housing 24 and the spool housing 24. Therefore, the ink ribbon 10 that is spanned between the supply-side spool 11 and the take-up spool 12 and extends to the opening 40 travels in the apparatus main body 3 by the thermal head 140 and the guide roller 168 of the ribbon guide 165. A ribbon path that forms a path is formed. That is, the ink ribbon cartridge 2 can be formed in the ribbon path only by being mounted on the ink ribbon cartridge holder 7 and transported to the printing position. Therefore, the ink ribbon cartridge 2 does not need to form a ribbon path in the apparatus main body 3 in advance, and it is not necessary to provide an operation for forming the ribbon path and a member responsible for this operation after the ink ribbon cartridge 2 is mounted at the printing position.

  Specifically, the ink ribbon 10 includes a head cover 148 formed on the back side of the head unit 143 and a cover member 149 formed on the front side of the head unit 143 when the thermal head 140 is inserted into the opening 40. And is supported at substantially the same height as the head portion 143 so that it can travel in the horizontal direction. Accordingly, the ink ribbon 10 travels substantially parallel to the photographic paper 4 conveyed from the back surface 3c side to the front surface 3a side by the conveyance mechanism 220, and the adhesion between the two is improved, so that the printing characteristics can be improved. . The ink ribbon 10 is formed at the upper end of the ribbon guide 165 by inserting a ribbon guide 165 protruding from the main surface 110 of the base chassis 101 into the opening 40 from the side opposite to the thermal head 140. The guide roller 168 is steeply raised from substantially the same height as the head portion 143 to substantially the same height as the slit 50 of the winding side spool storage portion 24. Therefore, the ink ribbon 10 is heated and transferred to the photographic paper 4 by being heated by the head portion 143, is cooled by being guided by the cover member 149, and then is sharply raised. It can be peeled off efficiently.

  At this time, the thermal head 140 and the platen roller 155 are opposed to each other with a predetermined distance, and the sliding piece 150 protruding from both sides of the thermal head 140 has the sliding contact portion 151 in the longitudinal direction of the platen roller 155. Is opposed to a flange portion 156 provided at both end portions of the first and second ends with a predetermined distance (FIG. 30A).

  In addition, when the ink ribbon cartridge 2 is mounted at the printing position, the second gear portion 212 d of the traveling gear 212 provided in the apparatus main body 3 is opened in the winding side spool housing portion 24. Engaged with the ratchet gear 17 facing outward from the portion 48, the take-up spool 12 is rotatable (FIG. 26). At this time, the take-up gear 138 provided in the apparatus main body 3 is engaged with the ratchet gear 17 facing outward from the gear opening 47 opened in the supply-side spool storage section 23 ( FIG. 22).

  In addition, the ink ribbon cartridge 2 causes the guide portion 31 supported by the guide support portion 125 of the ink ribbon cartridge holder 7 to bulge to the side surface of the cartridge body 13 and to bulge at a position higher than the lower surface of the cartridge body 13. Therefore, a space can be secured below the guide portion 31 and the guide support portion 125 that supports the guide portion 31. In the printer 1, the second gear portion 212 d of the traveling gear 212, the roller main body 225 a of the capstan roller 225, and both ends of the pinch roller 230 are positioned below the guide support portion 125. Thus, the apparatus main body 3 is downsized.

  Next, the image printing operation is started. In the printing operation, first, the photographic paper tray 5 is mounted in the opening 8 formed on the front surface 3 a side of the apparatus main body 3. At this time, the pressing portion 173a of the pressing lever 173 is inserted into the bottom of the photographic paper tray 5 (FIG. 38). Next, by operating the operation panel 104, a print image, size, number of sheets, image quality, and the like are selected from the LCD panel 105 on which images transmitted from various recording media and personal computers are displayed, and printing is started.

  When an operation for starting printing is performed, first, the feeding operation of the photographic paper 4 stored in the photographic paper tray 5 is performed. In the paper feeding operation, as shown in FIG. 32, when the switching / traveling motor 180 is driven to rotate forward, the elevation plate 196 is rotated in the direction in which the platen roller 155 is raised. As a result, the second swing gear 228 supported coaxially with the capstan roller 225 and engaged with the cam gear 226 allows the arm portion 228a to swing upward and the gear portion 228b to engage with the cam gear 226. It is possible.

  Next, when the capstan motor 181 is driven to rotate forward, the capstan roller 225 is rotated in the direction of arrow L in FIG. 32, and the paper supply / discharge roller 170 is rotated in the direction of arrow N in FIG. Further, when the capstan roller 225 is rotated in the arrow L direction, the arm portion 228a of the second swing gear 228 is rotated in the same direction, and the gear portion 228b is engaged with the cam gear 226. Since the cam gear 226 is rotated in the direction indicated by the arrow Q in FIG. 32, the pressing lever 173 engaged with the cam groove of the cam gear 226 is stored in the photographic paper tray 5 with the pressing portion 173a rotated upward. The photographic printing paper 4 is pressed against the paper supply / discharge roller 170.

  Accordingly, among the photographic papers 4 stored in the photographic paper tray 5, the uppermost photographic paper 4 is fed into the apparatus main body 3 by the roller portion 170a of the paper supply / discharge roller 170, and the capstan roller 225 and the pinch roller. 230 is delivered. At this time, the photographic paper 4 is conveyed below the flapper 237 disposed on the main surface 110 of the base chassis 101.

  Subsequent to the paper feeding operation, the operation returns to the paper returning operation. In the paper return operation, the platen roller 155 is lowered by driving the switching / running motor 180 in the normal direction to form a conveyance space for the photographic paper 4 with the thermal head 140 (FIG. 30A). As the capstan roller 225 is rotated in the direction of arrow L in FIG. 37, the photographic paper 4 is conveyed toward the back surface 3c of the apparatus main body 3. When the photographic paper 4 is conveyed to a predetermined position, the capstan roller 225 is stopped under the control of a photo sensor that detects the edge of the photographic paper 4 and an encoder that counts the rotation of the capstan roller 225.

  Further, when the photographic paper 4 is conveyed to the back surface 3c side of the apparatus body 3, the switching / running motor 180 is driven in reverse to cue the ink ribbon 10, for example, yellow (Y) dye. The layer 10b is positioned between the thermal head 140 and the platen roller 155.

  The cam gear 226 is rotated by the gear portion 228b of the second swing gear 228, and stops rotating when the cam gear 226 is rotated to the idling portion that is not engaged with the gear portion 228b. At this time, the pressing lever 173 has the pressing portion 173a pivoted upward. In the paper returning operation, the arm portion 196c of the left elevating plate 196b is rotated downward, so that the cam gear 226 is pressed through the stopper piece 229 and slightly reversed, and the second swing gear 228 is also armed. Since the portion 228a is rotated downward, the cam gear 226 and the gear portion 228b are brought into a state where they can be engaged with the cam gear 226 again. Further, when the cam gear 226 is reversed, the pressing lever 173 is temporarily disengaged from the cam groove of the cam gear 226, and the pressing portion 173a is rotated downward by the biasing force of the coil spring.

  After the paper return operation, the operation proceeds to the printing operation. In the printing operation, the switching / running motor 180 is further driven to rotate forward to raise the platen roller 155, so that the head portion 143 of the thermal head 140 and the leading end portion of the ink ribbon 10 and the printing paper 4 are clamped. At this time, the flange portions 156 provided on the rotating shaft 155a of the platen roller 155 are brought into sliding contact with the sliding contact portions 151 of the sliding pieces 150 provided on both sides of the thermal head 140. Accordingly, since the flange portion 156 is guided by the sliding piece 150, the platen roller 155 can be brought into contact with the head portion 143 of the thermal head 140 with high accuracy (FIG. 30B).

  Next, the capstan motor 181 is driven in reverse, the roller body 225a of the capstan roller 225 rotates in a direction opposite to the arrow L that conveys the printing paper 4 to the front surface 3a side of the apparatus main body 3, and the printing paper 4 is moved to the front surface 3a side. The yellow (Y) dye layer 10b is thermally transferred by the thermal head 140 while being conveyed. The ink ribbon 10 is also driven in the reverse direction by the switching / traveling motor 180 to drive the travel gear 212, whereby the take-up spool is rotated in the direction of arrow D in FIG.

  The ink ribbon 10 is supported by a plurality of ribs 41 formed intermittently in the supply-side spool storage portion 23 and the take-up-side spool storage portion 24, so that the ink ribbon 10 can run smoothly in the cartridge body 13. it can.

  Subsequent to the printing operation, the operation proceeds to a paper returning operation, and the printing paper 4 is conveyed to the back surface 3c side. Also at this time, when the switching / running motor 180 is driven to rotate forward, the platen roller 155 is lowered to form a conveyance space for the photographic paper 4 with the thermal head 140, and then the capstan roller 225 is moved to the arrow in FIG. By rotating in the L direction, the photographic paper 4 is conveyed to the back surface 3 c side of the apparatus main body 3. Further, the ink ribbon 10 is cueed during the paper returning operation, and the magenta (M) dye layer 10c is positioned between the thermal head 140 and the platen roller 155.

  Then, the printing operation is started, the platen roller 155 is raised, and the magenta (M) dye layer is thermally transferred while the printing paper 4 is conveyed to the front surface 3a side. When the printing of magenta (M) is completed, the operation returns to the paper returning operation, the platen roller 155 is lowered, the printing paper 4 is conveyed to the back surface 3c side, and the ink ribbon 10 is run and the cyan (C) dye layer 10d. Cueing is performed. Similarly, the platen roller 155 is raised, and the cyan (C) dye layer is thermally transferred while the photographic paper 4 is conveyed to the front surface 3a side. When the cyan (C) printing is completed, the paper transfer operation is started, the platen roller 155 is lowered, the printing paper 4 is conveyed to the back surface 3c side, and the ink ribbon 10 is run to cue the protective layer 10e. Is called.

  When the transfer of the protective layer 10e is completed, the paper discharge operation is continued. In the paper discharge operation, the platen roller 155 is lowered, and the nip of the printing paper 4 by the thermal head 140 and the platen roller 155 is released. Further, the roller body 225a of the capstan roller 225 rotates in a direction opposite to the arrow L that conveys the photographic paper 4 to the front surface 3a side of the apparatus body 3, and the sheet supply / discharge gear 172 moves the sheet supply / discharge roller 170 outside the apparatus body 3. Rotate in the direction of arrow N in FIG. The photographic printing paper 4 conveyed to the front surface 3 a side of the apparatus main body 3 by the capstan roller 225 is conveyed between the paper supply / discharge roller 170 and the sub roller 171 by the flapper 237 disposed on the main surface 110 of the base chassis 101. (FIG. 39). Accordingly, since the photographic paper 4 is conveyed above the paper supply / discharge roller 170, the paper supply / discharge roller 170 is rotated in the direction of the arrow N to be conveyed outward from the front surface 3a of the apparatus main body 3, and the photographic paper tray 5 Discharged to the top. When the photographic paper 4 is discharged, the drive of the capstan motor 181 is stopped, and the next printing start operation is awaited.

  As described above, according to the printer apparatus 1, the platen roller 155 can be brought into contact with and separated from the thermal head 140, and the photographic paper 4 is conveyed in the back direction and the front direction according to the rotation direction of the capstan roller 225. be able to. Accordingly, each mode of the paper feeding operation, the paper returning operation, the printing operation, and the paper discharging operation is realized by a combination of the elevation of the platen roller 155 and the rotation direction of the capstan roller 225.

  When the ink ribbon cartridge 2 is discharged from the apparatus main body 3 such as when the ink ribbon 10 is used up and replaced, the open button 107 provided on the front surface 3a of the apparatus main body 3 is slid. Since the open button 107 is interlocked with the locking member engaged with the first locking protrusion 118 of the top chassis 102, the opening button 107 is slid to operate the locking member and the first locking protrusion. The engagement with the portion 118 is released. Accordingly, the top chassis 102 is rotated above the base chassis 101 under the urging force of the torsion coil spring 116 (FIG. 16).

  At this time, since the printing apparatus 1 is in a state where the printing operation has been completed, the platen roller 155 is lowered so that the printing paper 4 can be discharged. Therefore, the lifting plate 196 that lifts and lowers the platen roller 155 releases the engagement between the locking piece 201 provided on the engagement plate 198 and the second locking projections 119 formed on the left and right side surfaces of the top chassis 102. Has been.

  When the top chassis 102 is rotated above the base chassis 101, the ink ribbon cartridge holder 7 is engaged with the rotation protrusion 136 that protrudes from the arm portion 135 a of the connecting member 135 provided in the top chassis 102. It is stopped and rotated upward, and is exposed outward from the front surface 3a side of the apparatus main body 3. Further, the rotation protrusion 136 of the connecting member 135 is locked to the support piece 127 after the top chassis 102 is rotated to some extent from the position where the base chassis 101 is closed, and rotates the ink ribbon cartridge holder 7. . The gear portion 137 formed on the arm portion 135a of the connecting member 135 is provided in the base chassis 101 from when the top chassis 102 starts to rotate upward until the ink ribbon cartridge holder 7 starts to rotate upward. The wound take-up gear 138 is rotated in the direction of arrow C in FIG. When the winding gear 138 is rotated in the same direction, the ratchet gear 17 of the supply-side spool 11 engaged with the large-diameter gear 138b of the winding gear 138 is rotated in the direction of arrow C in FIG. Accordingly, the supply-side spool 11 is rotated in the winding direction of the ink ribbon 10, and the ink ribbon 10 that has slackened with the winding-side spool 12 can be wound. As a result, the ink ribbon cartridge 2 can be discharged immediately after the top plate 6 is opened.

  Then, the ink ribbon cartridge 2 is pulled out from the ink ribbon cartridge holder 7 with the grip portion 32 gripped in the same manner as when the ink ribbon cartridge 2 is mounted. In the ink ribbon cartridge 2 pulled out from the ink ribbon cartridge holder 7, the ratchet portion 65 formed on the elastic engagement piece 64 of the spool lock 61 is engaged with the ratchet gears 17 of the supply side spool 11 and the take-up side spool 12. Therefore, when the ink ribbon 10 is stored for recycling or discarded, the rotation in the direction in which the ink ribbon 10 is pulled out is restricted, and sagging of the ink ribbon 10 is prevented.

  As described above, the printer apparatus to which the present invention is applied has been described. In the present invention, as described above, the ink ribbon cartridge holder 7 and the top chassis 102 are supported so as to be rotatable around the support protrusions 117, respectively. The ink ribbon cartridge holder 7 is not limited to a configuration in which the ink ribbon cartridge holder 7 is connected to the top chassis 102 via the rotating protrusion 136 of the connecting member 135 so that the ink ribbon cartridge holder 7 is rotated above the base chassis 101. Like the pop-up video cassette holder used, an elevating mechanism including a pantograph mechanism and a link mechanism is provided, and one or both of the ink ribbon cartridge holder 7 and the top chassis 102 move with respect to the base chassis 101 by this elevating mechanism. You may comprise as follows.

  Further, in the above embodiment, the ink ribbon cartridge holder 7 is connected by the connecting member 135 and the rotating protrusion 136, and when the top chassis 102 moves upward, the ink ribbon cartridge holder 7 also moves upward. However, the present invention is not limited to this configuration, and the top chassis 102 and the ink ribbon cartridge holder 7 may be moved separately without being connected. In such a printer apparatus, a movement space for the ink ribbon cartridge holder 7 is created by moving the top chassis 102 upward, and the ink ribbon cartridge holder 7 can be moved upward. If the top chassis 102 is pushed down, the ink ribbon cartridge holder 7 is also pushed down indirectly.

  Hereinafter, specific description will be given with reference to the drawings. The same members as those in the above-described embodiment are designated by the same reference numerals and their details are omitted. As shown in FIG. 40, the main chassis 240 of the printer apparatus 1 includes a base chassis 241 and a top chassis 242 connected to the top plate 6 and attached to the base chassis 241 so as to be rotatable in the vertical direction. .

  The top chassis 242 does not have the connecting member 135, and is urged to rotate upward with respect to the base chassis 101 separately from the ink ribbon cartridge holder 246 by the torsion coil spring 116 with the support protrusion 117 as a fulcrum. The top chassis 242 is provided with a first lock piece 243 on the front surface 242a side. The first lock piece 243 is engaged with the top chassis lock portion 244 formed on the base chassis 241 corresponding to the first lock piece 243, so that the first lock piece 243 is opposed to the urging force of the torsion coil spring 116. The chassis 102 is closed with respect to the base shear 241. Then, when the first lock piece 243 or the top chassis lock portion 244 is slid, the top chassis 102 is disengaged from the first lock piece 243 and the top chassis lock portion 244 and can be rotated upward. It becomes. Note that the rotation area of the top chassis 242 is restricted by the engagement of the engagement piece 121 with the rotation restriction piece 120 formed on the base chassis 241 as in the case of the top chassis 102. As shown in FIG. 40, the top chassis 242 can also restrict the rotation region by attaching the other end of the rotation restricting arm 245 whose one end is locked to the base chassis 241.

  The ink ribbon cartridge holder 246 disposed between the base chassis 241 and the top chassis 242 can be moved up and down with respect to the base chassis 241 by a lifting mechanism 247 provided between the base chassis 241. As shown in FIGS. 40 and 41, the elevating mechanism 247 has a so-called pantograph structure in which a pair of elevating arms are provided intersecting on the left and right side surfaces, for example. Specifically, the lifting mechanism 247 has a first lifting arm 248 and a second lifting arm 249 attached to the left and right side surfaces, respectively.

  One end of the first lifting arm 248 is pivotally locked to the back side of the support plate 250 provided on the base chassis 241, and the other end is inserted into a slit 251 formed in the side surface of the ink ribbon cartridge holder 246. It is locked. The support plate 250 is formed of a substantially rectangular plate-like body standing near both side surfaces of the base chassis 241, and is provided along the side wall of the base chassis 241 in the longitudinal direction. The slit 251 is formed in the side surface portion of the ink ribbon cartridge holder 246 along the insertion / removal direction of the ink ribbon cartridge 2. The first lifting arm 248 is provided with a shaft whose details are omitted at the other end and a roller bearing that receives the shaft, so that the slit 251 can move smoothly.

  The second lifting arm 249 has one end rotatably engaged with the back side of the side surface of the ink ribbon cartridge holder 246 and the other end engaged with the support plate 250 in the slit 252. The second lifting arm 249 is also provided with a shaft whose details are omitted at the other end and a roller bearing that receives the shaft, so that the slit 252 can be moved smoothly. The slit 252 is formed along the longitudinal direction of the support plate 250. The support plate 250 has a protrusion 253 protruding in the vicinity of the slit 252, and a spring member 254 is stretched between the other end of the second lifting arm and the protrusion 253. As a result, the second lifting arm 249 is always biased toward the back side of the base chassis 241 at the other end.

  These first and second lifting arms 248 and 249 intersect with each other at a substantially intermediate portion in the longitudinal direction and are rotatably locked. As a result, the lifting mechanism 247 moves the ink ribbon cartridge 7 upward when the other end of the second lifting arm 249 receiving the urging force of the spring member 254 is slid to the back side of the base chassis 241. Further, when the other end of the second lifting arm 249 is slid to the front side of the base chassis 241 against the urging force of the spring member 254, the lifting mechanism 247 lowers the ink ribbon cartridge holder 246 into the base chassis 241. Let

  The ink ribbon cartridge holder 246 that is lifted and lowered by the lifting mechanism 247 is provided with a second lock piece 255 on the front surface. The second lock piece 255 is locked to a holder lock portion 256 formed on the base chassis 241 corresponding to the second lock piece 255, so that the ink ribbon is opposed to the urging force of the spring member 254. The cartridge holder 246 is held while being lowered to the base chassis 241 side. The ink ribbon cartridge holder 246 moves upward when the second lock piece 255 or the holder lock portion 256 is slid to release the engagement between the second lock piece 255 and the holder lock portion 256. It becomes possible. The rising region of the ink ribbon cartridge holder 246 is movably engaged with a long hole 129 in which the locking projection 128 is opened in the vertical direction on the base chassis 241 as in the ink ribbon cartridge holder 7 described above. As the locking projection 128 is locked to the upper end of the long hole 129, the raised position with respect to the base chassis 241 is restricted.

  As shown in FIG. 41A, the printer device 1 is configured such that the top chassis 242 is biased by the torsion coil spring 116 by releasing the engagement between the first lock piece 243 and the top chassis lock portion 244. The ink ribbon cartridge holder 246 is raised by the elevating mechanism 247 that receives the urging force of the spring member 254 by rotating upward and releasing the engagement between the second lock piece 255 and the holder lock portion 256. . At this time, the top chassis 242 has the locking piece 121 locked to the rotation restricting piece 120, and the ink ribbon cartridge holder 246 has the locking projection 128 locked to the upper end of the long hole 129. As shown in (A), the top chassis 242 is rotated at an acute angle with respect to the base chassis 241, and the ink ribbon cartridge holder 246 is exposed outward from the front side between the base chassis 241 and the top chassis 242. The

  The printer apparatus 1 interlocks the unlocking of the top chassis 242 and the unlocking of the ink ribbon cartridge holder 246, and the ink ribbon cartridge holder 246 is raised simultaneously with the rotation of the top chassis 242. For example, the open button 107 provided on the apparatus main body 3 and the first lock piece 243 are connected and engaged with the top chassis lock portion 24, and the second lock piece 255 is engaged with the holder lock portion 256 by a plunger mechanism. Combine. Then, by operating the open button 107, the first lock piece 243 is slid to release the engagement with the top chassis lock portion 244, and at the same time, the holding force of the second lock piece 255 by the plunger mechanism is canceled. It is also possible to apply electric power to release the engagement between the second lock piece 255 and the holder lock portion 256.

  In addition, the printer device 1 may be configured so that unlocking of the top chassis 242 and unlocking of the ink ribbon cartridge holder 246 are not interlocked, and each unlocking button is provided and unlocking is performed by a separate operation.

  When the ink ribbon cartridge 2 is mounted in the ink ribbon cartridge holder 246, the top chassis 242 is pushed down toward the base chassis 241 as shown in FIG. The ink ribbon cartridge holder 246 is also lowered by being pressed by the top chassis 242, and the ink ribbon cartridge 2 is moved to the printing position. When the top chassis 242 is pushed down to the base chassis 241 side, the first lock piece 243 and the top chassis lock portion 244 are engaged, and the base chassis 241 is closed against the urging force of the torsion coil spring 116. The ink ribbon cartridge holder 246 lowered by the top chassis 242 is also engaged with the second lock piece 255 and the holder lock portion 256, and the second lifting arm 249 is opposed to the biasing force of the spring member 254. The other end is moved to the front side of the slit 252. As a result, the ink ribbon cartridge holder 246 transports the ink ribbon cartridge 2 to the printing position.

  In addition to being pushed down to the base chassis 241 side by the top chassis 242, the printer apparatus 1 first pushes the ink ribbon cartridge holder 246 down to the base chassis 241 side when the ink ribbon cartridge 2 is loaded, and then the top. The chassis 242 may be closed by being pushed down to the base chassis 241 side.

  As described above, the lifting mechanism 247 for the ink ribbon cartridge holder 246 is provided separately from the top chassis 242, and the first lock piece 243 for locking the top chassis 242 and the second lock piece 255 for locking the ink ribbon cartridge holder 246 are provided. By providing, each can be reliably locked. Therefore, for example, when the plunger mechanism that locks the ink ribbon cartridge holder 246 is controlled so that it cannot be unlocked while the printer apparatus 1 is operating, the top chassis 242 is accidentally rotated upward during the printing operation. In addition, the ink ribbon cartridge holder 246 does not rise together with the top chassis 242, and it is possible to prevent accidents such as jamming of the ink ribbon 10 during traveling and jamming of the photographic paper 4 being conveyed.

  Further, like the main chassis 100, the main chassis 240 does not have a configuration in which the top chassis 102 and the ink ribbon cartridge holder 7 are both pivotally supported by the support protrusions 117 protruding from the base chassis 101. Since the ink ribbon cartridge holder 246 is moved up and down by the lifting mechanism 247 such as a pantograph mechanism, it is not necessary to make a large inclination angle with respect to the main chassis 241 at the insertion / removal position of the ink ribbon cartridge 2. In other words, in the main chassis 100, the top chassis 102 and the ink ribbon cartridge holder 7 are both moved up and down by being rotated coaxially by the support protrusion 117, so When the ink ribbon cartridge holder 7 is rotated to a position where the ink ribbon cartridge 2 can be inserted and removed, the rotation amount of the top chassis 102 needs to be larger than the rotation amount of the ink ribbon cartridge holder 7. Becomes larger. On the other hand, when the ink ribbon cartridge holder 246 is moved up and down by the lifting mechanism 247, the top chassis 242 can be disposed without taking a large amount of rotation even when the ink ribbon cartridge 2 is raised to a height at which it can be inserted and removed. . Therefore, the printer device 1 can be configured in a compact configuration that does not require a large space for the top plate 6 and the top chassis 242 to be secured upward. For example, a structure is formed on the upper and lower sides of the shelf. Can also be placed in other places.

  On the other hand, the printer device 1 including the main chassis 100 does not include an elevating mechanism, and the top chassis 102 and the ink ribbon cartridge holder 7 are coaxially supported by the support protrusion 117, and the top is formed using the connecting member 135. Since the configuration is such that the ink ribbon cartridge holder 7 is moved in conjunction with the rotation of the chassis 102, the number of parts is small, and the ascending operation can be performed with a simple configuration.

  In addition to the provision of the thermal head 140 on the top chassis 102, 242 side and the ribbon guide 165 on the base chassis 101, 241 side, the printer device to which the present invention is applied is not limited to the top chassis 102, 242 side. The ribbon guide 165 may be provided on the 242 side, and the thermal head 140 may be provided on the base chassis 101, 241 side. In any configuration, when the ink ribbon cartridge 2 is moved to the printing position in the apparatus main body 3, the thermal head 140 and the ribbon guide 165 are inserted into the opening 40 provided in the cartridge main body 13 to form a ribbon path. Is done.

  Further, the printer apparatus to which the present invention is applied has a configuration other than the configuration in which the photographic paper tray 5 in which a plurality of photographic papers 4 are accommodated as described above is mounted and automatically conveyed into the apparatus main body by the conveyance mechanism. As shown at 40, the printing paper 4 may be inserted into the apparatus main body one by one each time printing is performed.

It is an external appearance perspective view of the printer apparatus which closed the top plate. It is an external appearance perspective view of the printer apparatus which opened the top plate. FIG. 3 is an external perspective view showing an ink ribbon cartridge mounted on the printer device. FIG. 3 is an exploded perspective view showing an ink ribbon cartridge mounted on the printer device. It is sectional drawing which shows an ink ribbon. It is a perspective view which shows the lower shell of an ink ribbon cartridge. It is a side view which shows the front end surface of the protrusion provided in the spool. It is sectional drawing which shows the support wall and support piece which clamp the support part and protrusion of a spool. FIG. 3 is an exploded perspective view showing an ink ribbon cartridge mounted on the printer device. It is a figure which shows the ink ribbon cartridge by which rotation of the spool was controlled by the spool lock. It is a figure which shows the ink ribbon cartridge from which the rotation control of the spool by a spool lock was cancelled | released. It is a perspective view which shows an ink ribbon cartridge from the downward direction. It is a perspective view which shows a cartridge support unit. It is a figure for demonstrating the structure which performs classification classification of an ink ribbon cartridge. It is sectional drawing which shows the structure of photographic paper. It is a perspective view which shows the main chassis by which the top chassis was rotated upwards. It is a perspective view which shows the main chassis with which the top chassis was closed. It is a perspective view which shows a base chassis. It is a top view which shows a base chassis. It is a side view which shows the main chassis by which the top chassis was rotated upwards. It is a figure for demonstrating the structure which winds up an ink ribbon at the time of rotation of a top chassis. It is a figure for demonstrating the structure which winds up an ink ribbon at the time of rotation of a top chassis. It is a perspective view which shows a thermal head. It is sectional drawing which shows the main chassis by which the top chassis was rotated upwards. It is sectional drawing which shows the main chassis with which the top chassis was closed. It is sectional drawing which shows the main chassis by which the platen roller was lowered | hung. It is a side view which shows the switching mechanism in which the platen roller was lowered. It is sectional drawing which shows the main chassis where the platen roller was raised. It is a side view which shows the switching mechanism by which the platen roller was raised. It is a perspective view which shows a mode that a platen roller and a thermal head adjoin and separate, (A) shows the case where it separates, (B) shows the case where it adjoins. It is a side view which shows a switching mechanism and a traveling mechanism. FIG. 4 is a side view showing a transport mechanism for feeding photographic paper. FIG. 4 is a side view showing a transport mechanism for feeding photographic paper. FIG. 6 is a side view showing a transport mechanism for returning photographic paper. FIG. 6 is a side view showing a transport mechanism that discharges photographic paper. FIG. 3 is a cross-sectional view illustrating a printer device to which photographic paper is fed. FIG. 3 is a cross-sectional view illustrating a printer device to which photographic paper is fed. It is sectional drawing which shows the apparatus main body of a printer. FIG. 3 is a cross-sectional view illustrating a printer device that performs printing on photographic paper. It is a perspective view which shows the main chassis of the printer apparatus which concerns on another Example. It is a figure which shows the opening / closing operation | movement of the printer apparatus which concerns on another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Printer apparatus, 2 Ink ribbon cartridge, 3 Apparatus main body, 4 Printing paper, 5 Printing paper tray, 6 Top plate, 7 Ink ribbon cartridge holder, 10 Ink ribbon, 11 Supply side spool, 12 Winding side spool, 13 Cartridge body , 14 shaft portion, 15 flange portion, 16 support shaft portion, 17 ratchet gear, 18 projecting portion, 20 biasing member, 21 upper shell, 22 lower shell, 23 supply side spool storage portion, 24 take-up side spool storage portion, 25- 28 bearing parts, 29 abutting parts, 30 engaging mechanisms, 31 guide parts, 32 gripping parts, 33 openings, 35 recesses for temporary fixing, 40 openings, 41 ribs, 42 support walls, 43 to 46 support pieces, 51 Locking claw, 52 Locking hole, 55 Locking wall, 56 Opening, 57 Release restriction piece, 58 Release restriction wall, 59 Piece, 61 Spool lock, 64 Elastic engagement piece, 65 Ratchet part, 66 Pressed part, 70 Placement surface, 72, 73 Positioning hole, 74 ID hole, 100 Main chassis, 101 Base chassis, 102 Top chassis, 110 Main Surface, 111 left side wall, 112 right side wall, 116 torsion coil spring, 125 guide support part, 126 connection part, 127 support piece part, 128 locking projection part, 131 temporary fixing convex part, 135 connection member, 140 thermal head, 148 Head cover, 149 cover member, 155 platen roller, 160 cartridge support unit, 162, 163 positioning convex part, 164 detection switch, 165 ribbon guide, 166 support surface part, 167 detection pin, 168 guide roller, 170 feed / discharge roller, 171 Sabouraud , 172 Feeding / discharging gear, 173 pressing lever, 180 switching / traveling motor, 181 capstan motor, 190 switching mechanism, 195 cam gear, 196 lift plate, 205 pressing member, 210 traveling mechanism, 212 traveling gear, 220 transport mechanism, 225 Capstan roller, 226 cam gear, 230 pinch roller, 236 guide wall, 237 flapper

Claims (1)

In a printer device that prints an image on a print medium by closely contacting and heating the ink ribbon and the print medium,
An ink ribbon cartridge holder to which an ink ribbon cartridge containing the ink ribbon is mounted;
A transport mechanism for transporting the printing medium;
A traveling mechanism for traveling the ink ribbon;
A thermal head that is movably provided at a printing position close to the ink ribbon and a retreat position away from the printing position, and that prints a predetermined image on the printing medium by heating the ink ribbon;
A platen roller provided in the apparatus main body so as to be able to swing in a direction approaching and separating from the thermal head moved to the printing position and sandwiching the printing medium and the ink ribbon together with the thermal head; ,
A printer device in which the thermal head is provided with a sliding piece that, when moved to the printing position, produces a positional accuracy with the platen roller by being in sliding contact with the shaft portion of the platen roller.

Images