EP1338423B1 - Thermodrucker - Google Patents

Thermodrucker Download PDF

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Publication number
EP1338423B1
EP1338423B1 EP20030250982 EP03250982A EP1338423B1 EP 1338423 B1 EP1338423 B1 EP 1338423B1 EP 20030250982 EP20030250982 EP 20030250982 EP 03250982 A EP03250982 A EP 03250982A EP 1338423 B1 EP1338423 B1 EP 1338423B1
Authority
EP
European Patent Office
Prior art keywords
thermal head
frame member
platen roller
pressure
thermal printer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20030250982
Other languages
English (en)
French (fr)
Other versions
EP1338423A2 (de
EP1338423A3 (de
Inventor
Akio c/o SII P & S Inc. Naito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of EP1338423A2 publication Critical patent/EP1338423A2/de
Publication of EP1338423A3 publication Critical patent/EP1338423A3/de
Application granted granted Critical
Publication of EP1338423B1 publication Critical patent/EP1338423B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/24—Detents, brakes, or couplings for feed rollers or platens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/18—Platen-impression arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads

Definitions

  • the present invention relates to a miniature thermal printer mounted on a variety of portable information equipments or the like, and more particularly to a thermal printer that has a simplified structure of a pressure means for pressing a line thermal head so that a line thermal head may be depressed against a surface of a platen roller.
  • a general conventional line dot type thermal printer is composed of a line thermal head and a platen roller assembled into a frame to face each other, a drive means therefor, a transport mechanism for transportation of thermal recording paper, and the like.
  • British patent application GB 2250478 published on 10th June 1992, relates to the mounting of a thermal print head in a printer.
  • the printer is in two parts, a main body and a lid portion.
  • the lid portion has a chassis with a pair of side walls, to which are pivoted brackets holding an elongate support member. Held securely against the elongate support member by a clamping strip is a thermal print head.
  • Journalled in the main body is a platen roller. When the lid is closed, the print head contacts the roller and is urged against it by means of springs situated between the top of the elongate support member and the underside of the chassis.
  • FIG. 10 is an exploded perspective view.
  • reference numeral 200 designates a head support member serving also as a heat radiation member of the thermal head H
  • reference numeral 300 denotes a bearing member of the rotary shaft 102A of the platen roller 102
  • reference numeral 400 denotes a sensor for detecting an end portion of the recording paper.
  • the lock arm member 105 is provided with a pair of hook-shaped rotary shaft support portions (latch portions) 105a for engaging with and dragging both end portions of the rotary shaft of the platen roller 102 so that the surface of the platen roller 102 is brought into pressing contact with the thermal head H side, a pair of arm portions 105b for leading the latch portions 105a to the rear side of the thermal head H through both sides of the thermal head H, and an elastic member support portion 105c arranged in the widthwise direction of the back side of the thermal head H provided with arm portions 105b at both sides thereof for supporting the above-described coiled springs 104.
  • the lock arm member 105 and the thermal head H are rotatably supported to both side surfaces of the frame 101 through the rotary shaft 500.
  • reference numeral 700 denotes a screw for fastening the motor M to the frame 101.
  • the thermal printer with such a structure is mounted on, for example, a portable information terminal or the like.
  • These information terminals and the like are required to be further miniaturized in order to enhance the convenience or the portability and to be produced at lower cost in order to enhance the competitive power with respect to the cost.
  • thermal printer per seas constituents of the information terminals Such a requirement is also applied to the thermal printer per seas constituents of the information terminals.
  • the thermal printer per se is also required to be further miniaturized and produced in lower cost.
  • the various constituents (platen roller 102, thermal head H, head support member 200, gear transmission mechanism G, and the like) have various mounting positions and mounting directions.
  • the conventional thermal printer has a disadvantage that the assembling work is troublesome and needs high skill.
  • an object of this invention is to reduce the number of parts in order to attain the miniaturisation and to simplify the assembling work to reduce the manufacturing cost.
  • a thermal printer including at least: a frame (F) having a pair of side wall portions arranged to face each other at a predetermined interval in a paper width direction; a thermal head (H) for effecting printing; a platen roller (1) whose circumferential surface is brought into contact with the line thermal head; a pressure means for pressing the platen roller so that a back surface of the line thermal head is brought into pressing contact with the surface of the platen roller; a motor (M) as a drive source; and a gear transmission mechanism (G1) for transmitting a rotational drive force of the motor to the platen roller, characterised in that the pressure means is formed integrally with a part of the frame that is brought into pressing contact with a back surface of the line thermal head.
  • the pressure means (members such as coiled springs) provided in the conventional printer may be dispensed with to reduce the number of parts so that the printer may be miniaturised and the manufacturing cost be reduced. Also, since the work for assembling the coiled springs or the like may be disposed with, the assembling work may be simplified so that the manufacturing cost may be further reduced.
  • the frame may be composed of a lower frame member and an upper frame member which is dividable up and down
  • a part of the frame constituting the pressure means may be a pressure portion formed integrally with the upper frame portion and having elasticity and when the upper frame member is engaged with the lower frame member, the pressure portion is in a position when an end portion of the pressure portion is in contact with a back surface of the line thermal head.
  • the frame may be composed of a lower frame member and an upper frame member which is dividable up and down
  • a part of the frame constituting the pressure means may be a pressure portion formed integrally with the upper frame member and having rigidity and when the upper frame member is engaged with the lower frame member, the pressure portion is in a position where and end portion of the pressure portion is in contact with a back surface of the line thermal head.
  • the end portion of the pressure portion may also serve as a heat radiating portion for conducting and radiating heat of the line thermal head.
  • the head support member is made of, for example, metal having a high thermal conductivity so that it is unnecessary to separately provide a heat radiation member to thereby make it possible to reduce the number of parts and to reduce the manufacturing cost.
  • Fig. 1 is an exploded perspective view showing a first embodiment of a thermal printer according to the present invention.
  • Fig. 2 is a perspective view showing an outer appearance of the thermal printer that has been assembled.
  • the thermal printer P1a As shown in Fig. 1, the thermal printer P1a according to the first embodiment is provided with a frame F composed of a lower frame member F1 and an upper frame member F2 having a pair of side wall portions arranged to face each other in a paper width direction at a predetermined interval.
  • the frame F is comprised of, for example, the injection-molded products of plastic such as a polycarbonate.
  • An upper surface of the lower frame member F1 and a lower surface of the upper frame member F2 are formed into a coupling structure (that is, a structure in which end faces correspond to each other and when coupled, there is generated no gap) and in the coupled condition shown in Fig. 2, both frame members F1 and F2 are fixed together by engagement claws or screws which can be fitted in.
  • a coupling structure that is, a structure in which end faces correspond to each other and when coupled, there is generated no gap
  • a receiving portionA for receiving a platen roller 1, a thermal head H, a motor M as a drive source, and the like is formed.
  • a groove, a cutaway portion, or the like for positioning the thermal head H is formed in the receiving portion A.
  • the thermal head H may be bonded to a heat radiation portion 11 to be described later in the upper frame member F2. Thus, it is possible to effectively perform the assembling work.
  • a support portion E1 for fixing a rear end portion of the motor M is formed in the receiving portion A. Also, a connector 30 connected to signal lines for transmitting printing signals is provided in the thermal head.
  • a divisional surface is determined in the lower frame member F1 and the upper frame member F2 so that it is divided through a plane passing through each bearing portion.
  • each bearing portion is completely overlapped in the vertical direction, it is impossible to cope with the divisional structure of the lower frame member F1 and the upper frame member F2. Accordingly, the structure is designed so that each rotary shaft of each gear gl, g2 is not overlapped in the vertical direction and displaced in the horizontal direction.
  • a gear receiving portion B for receiving each gear g1, g2 of a gear transmission mechanism G1 for transmitting a rotational drive force of the motor M to a driven gear g20 fixed at one end of the rotary shaft 1A of the platen roller 1 and a gear receiving portion B for receiving the driven gear g20 is formed on one side wall side (on the right side wall side in Fig. 1) of the lower frame member F1.
  • Semicircular holder portions C1 to C3 for rotatably holding the rotary shaft 1A of the platen roller 1 and the rotary shafts g1a and g2a of the respective gears g1 and g2 and a semicircular holder portion C4 for holding the bearing portion Ma of the motor M are formed on the upper edge side of the gear receiving portion B and the side wall of the lower frame member F1.
  • reference numeral 20 denotes a guide portion that serves as a guide when a roll paper (not shown) as the recording paper is fed.
  • semicircular holder portions D1 to D3 (incidentally, D4 does not appear in the drawing) formed in confronting positions with the holder portions C1 to C3 of the lower frame member F1 are formed in the lower surface side of the upper frame member F2.
  • a V-shaped pressure portion 10a having elasticity for pressing a back surface of the line thermal head H so that the line thermal head H is brought into pressing contact with the surface of the platen roller 1 is formed integrally with the upper frame member F2 in the upper surface side of the upper frame member F2.
  • reference numeral 11 denotes a heat radiation portion for radiating heat of the thermal head H.
  • This heat radiation portion 11 is formed integrally with the pressure portion 10 and is provided in a position where the end face of the heat radiation portion 11 is in contact with the back surface of the thermal head H when the upper frame member F2 is fitted with the lower frame member F1.
  • the pressure portion 10a flexed rearward to cause the thermal head H to come into pressing contact with the surface of the platen roller 1 with a predetermined pressing force under the condition that the pressure portion 10a is in contact with the back surface of the thermal head H.
  • a suitable pressure to the recording paper clamped between the line thermal head H and the platen roller 1 in printing.
  • the motor M of the lower frame member F1 is mounted in the receiving portion A and the rotary gears g1a and g2a of the gears g1 and g2 are mounted in the holder portions C3 and C2 of the gear receiving portion B.
  • the driven gear g20 is mounted on one end portion of the rotary shaft 1A of the platen roller 1, and both end portions of the rotary shaft 1A of the platen roller 1 are mounted on the holder portion C1 of the lower frame member F1.
  • the driven gear 20 is received in the gear receiving portion B.
  • the line thermal head H is mounted in the receiving portion A and finally, the upper frame member F2 is fitted with the lower frame member F1.
  • the platen roller 1 and the rotary shafts of the gears g1 and g2 and the like are rotatably held by the holder portions C1 to C4 and the holder portions D1 to D4, and at the same time, the line thermal head H is brought into pressing contact with the surface of the platen roller 1 by the pressure portion 10a of the upper frame member F2.
  • the upper frame member F2 is fixed to the lower frame member F1 by screw fastening with engagement claws or screws to thereby assemble the thermal printer P1a as shown in Fig. 2.
  • the embodiment is advantageous in that the number of parts is reduced and the cost may be reduced more.
  • the pressure portion is not limited to the V-shape as described above. However, for example, as in a thermal printer P1b shown in Fig. 3, it is possible to form the pressure portion as a planar piece 10b curved upwardly. In this case, under the condition that the pressure portion 10b is in contact with the back surface of the line thermal head H, it is flexed upwardly to cause the thermal head H to be in pressing contact with the surface of the platen roller 1. Thus, in printing, it is possible to apply a suitable pressure to the recording paper clamped between the line thermal head H and the platen roller 1.
  • a thermal printer P1c according to a second embodiment will now be described with reference to Figs. 4 and 5.
  • the basic structure of the thermal printer P1c is substantially the same as the thermal printer P1a (P1b) according to the first embodiment.
  • the pressure portion 10a (10b) provided in the upper frame member F2 according to the first embodiment has elasticity whereas the pressure portion 10c according to the second embodiment has rigidity.
  • the pressure portion 10c is designed to have rigidity by thickening the pressure portion in comparison with the pressure portion 10b (see Fig. 3) according to the first embodiment.
  • the pressure portion 10c is made of resin having high degree of hardness or metal, it is not always necessary to thicken the portion if a predetermined strength may be ensured.
  • the pressure portion 10c under the condition that the pressure portion 10c is in contact with the back surface of the line thermal head H, the pressure portion is no longer flexed and causes the line thermal head H to come into pressing contact with the surface of the platen roller 1.
  • the surface of the platen roller 1 (normally made of hard rubber or the like) is suitably compressed and deformed to generate a predetermined pressure. Accordingly, in printing, it is possible to apply a suitable pressure to the recording paper clamped between the line thermal head H and the platen roller 1.
  • thermal printer P1d according to a third embodiment will now be described with reference to Figs. 6 and 7. Since the basic structure of the thermal printer P1d is the same as that of the first and second embodiments, the same reference numerals are used to indicate the same members and the explanation therefor will be omitted.
  • the different point of the thermal printer P1d according to the third embodiment from the thermal printer according to the first and second embodiments is that the pressure of the line thermal head H to the platen roller 1 is performed by means of a pair of lock pin mechanisms 50 provided in the upper frame member F2.
  • reference character 10d denotes a pressure member rotatably supported by the upper frame member F2.
  • the end portion 10dl of the pressure member 10d is adapted to come into contact with the back surface of the line thermal head H.
  • the end portion 10dl may also perform the function as a heat radiation member of the line thermal head H.
  • the lock pin mechanisms 50 are provided on both sides to face the line thermal head H and the platen roller 1 of the upper frame member F2 and are composed of pin support portions 50a and lock pins 50b.
  • the pin support portions 50a are formed so as to be bendable right and left through a predetermined distance by the manual operation as indicated by the arrow S in Fig. 6, whereby the lock pins 50b and both right and left end portions of the end portion 10dl of the pressure member may be engaged and disengaged.
  • the mounting position of the lock pins 50b are designed so that the lock pins are engaged with both right and left end portions of the end portion 10dl of the pressure member when the line thermal head H can be depressed with a predetermined pressure to the surface of the platen roller 1.
  • the lock pin mechanisms 50 are operated so that the engagement condition between the lock pins 50b and the end portion 10dl of the pressure member is cancelled. Subsequently, the recording paper is inserted between the line thermal head H and the platen roller 1 and the lock pin mechanisms 50 are again operated so that the lock pins 50b and the end portion 10dl of the pressure member are brought into the engagement condition.
  • the lock pin mechanisms 50 are again operated so that the lock pins 50b and the end portion 10dl of the pressure member are brought into the engagement condition.
  • a thermal printer P1e in accordance with a fourth embodiment will now be described with reference to Fig. 8.
  • the respective members are mounted in a frame F3 provided with a pair of side wall portions 900a and 900b and a thermal head support portion 901 provided between side wall portions 900a and 900b with a predetermined slant.
  • a motor M is arranged inside and on the lower side of one of the side walls 900a of the frame F3 and a drive gear g30 and a driven gear g40 are provided.
  • Longitudinal grooves 800 having opening portions 800a on the upper side and retainer portions 801 on the lower side are formed in the upper end portions of both side wall portions 900a and 900b.
  • a line thermal head H is bonded to the top surface of the thermal head support portion 901.
  • Each retainer portion 801 of the longitudinal grooves 800 is provided in a position where the surface of the platen roller 1 to be mounted can be depressed in parallel with the line thermal head H to compress the platen roller.
  • reference numeral 810 denotes a bearing member to be engaged with the retainer portions 801 of the longitudinal grooves 800 while passing through an end portion of the rotary shaft 1A, 1B of the platen roller 1.
  • the bearing member 810 that has been inserted into the tip end portion of the rotary shaft 1B of the platen roller 1 is engaged from the inside with the retainer portions 801 of the longitudinal grooves 800.
  • the bearing member 810 is engaged from the outside of the retainer portions 801 of the longitudinal grooves 800 into the tip end portion of the rotary shaft 1A of the platen roller 1.
  • the driven gear g50 is mounted on the tip end portion of the rotary shaft 1A and finally, the driven gear g60 is mounted on the side wall portion 900a of the frame F3.
  • the pressure means (members such as coiled springs) provided in the conventional printer may be dispensed with to reduce the number of parts so that the printer can be miniaturized and the cost can be reduced. Also, since the work for assembling the coiled springs or the like can be dispensed with, the assembling work may be simplified so that the manufacturing cost may be further reduced.
  • the pressure member (pressure portion) it is possible to design the pressure member (pressure portion) according to the first to fourth embodiments so as to also serve as the radiation plate. In this case, this is more effective to form the pressure member of metal such as zinc die cast that is superior in heat conductivity and heat radiation.
  • the frame F is injection molded of plastic such as polycarbonate.
  • the invention is not limited thereto and it is possible to make the frame of metal.
  • the pressure portion 10a (10b) according to the first embodiment is made of metal having suitable elasticity.
  • the pressure portion 10c according to the second embodiment is made of metal having a suitable strength (hardness).
  • the frame F may be divided into two parts, i.e., the lower frame member F1 and the upper frame member F2.
  • this is not always necessary for the present invention; as long as the line thermal head H may be depressed against the platen roller 1 by a part of the constituents of the frame, the type of the frame does not matter.
  • a thermal printer includes at least: a frame having a pair of side wall portions arranged to face each other at a predetermined interval in a paper width direction; a thermal head for effecting printing; a platen roller whose circumferential surface is brought into contact with the line thermal head; a pressure means for pressing the platen roller so that a back surface of the line thermal head is brought into pressing contact with the surface of the platen roller; a motor as a drive source; and a gear transmission mechanism for transmitting a rotational drive force of the motor to the platen roller, in which the pressure means is constituted by a part of constituents of the frame that is brought into pressing contact with a back surface of the line thermal head. Accordingly, it is possible that the member such as a coiled spring provided in the conventional printer may be dispensed with, thereby making it possible to reduce the number of the parts, to miniaturize the printer, and to reduce the manufacturing cost.

Landscapes

  • Electronic Switches (AREA)
  • Handling Of Sheets (AREA)
  • Common Mechanisms (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Claims (4)

  1. Thermodrucker, umfassend:
    ein Gestell (F) mit einem Paar von Seitenwandabschnitten, die so angeordnet ist, dass sie einander mit einem vorbestimmten Abstand in einer Papierbreitenrichtung zugewandt sind,
    einen Thermokopf (H) zur Ausführung eines Drucks;
    eine Schreibwalze (1), deren Umfangsfläche mit dem Zeilendruckkopf in Kontakt gebracht wird;
    ein Druckmittel zum Anpressen der Schreibwalze, so dass der Zeilendruckkopf mit der Oberfläche der Schreibwalze in Presskontakt gebracht wird;
    einen Motor (M) als Antriebsquelle; und
    einen Getriebemechanismus (G1) zum Übertragen einer drehenden Antriebskraft des Motors auf die Schreibwalze,
    dadurch gekennzeichnet, dass das Pressmittel (10a - 10d) integral mit einem Teil des Gestells gebildet ist, dass mit einer Rückseite des Zeilendruckkopfs in Presskontakt gebracht wird.
  2. Thermodrucker nach Anspruch 1, wobei:
    das Gestell aus einem unteren Gestellelement (F1) und einem oberen Gestellelement (F2) besteht, das oben und unten teilbar ist,
    ein Teil des Gestells, das das Pressmittel bildet, ein Pressabschnitt (10c) ist, der integral mit dem oberen Gestellabschnitt gebildet ist und Elastizität hat, und wenn das obere Gestellelement mit dem unteren Gestellelement in Eingriff steht, der Pressabschnitt in einer Position ist, wo ein Endabschnitt des Pressabschnitts mit einer Rückseite des Zeilenthermokopfs in Kontakt steht.
  3. Thermodrucker nach Anspruch 1, wobei:
    das Gestell aus einem unteren Gestellelement (F1) und einem oberen Gestellelement (F2) besteht, das oben und unten teilbar ist,
    ein Teil des Gestells, das das Pressmittel bildet, ein Pressabschnitt (10c) ist, der integral mit dem oberen Gestellabschnitt gebildet ist und Steifigkeit hat, und wenn das obere Gestellelement mit dem unteren Gestellelement in Eingriff steht, der Pressabschnitt in einer Position ist, wo ein Endabschnitt des Pressabschnitts mit einer Rückseite des Zeilenthermokopfs in Kontakt steht.
  4. Thermodrucker nach Anspruch 2 oder 3, wobei:
    der Endabschnitt des Pressabschnitts auch als Wärmestrahlungsabschnitt (11) zum Leiten und Ausstrahlen von Wärme des Zeilenthermokopfs dient.
EP20030250982 2002-02-21 2003-02-18 Thermodrucker Expired - Lifetime EP1338423B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002045031 2002-02-21
JP2002045031A JP2003237118A (ja) 2002-02-21 2002-02-21 サーマルプリンタ

Publications (3)

Publication Number Publication Date
EP1338423A2 EP1338423A2 (de) 2003-08-27
EP1338423A3 EP1338423A3 (de) 2004-04-14
EP1338423B1 true EP1338423B1 (de) 2006-08-16

Family

ID=27655320

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030250982 Expired - Lifetime EP1338423B1 (de) 2002-02-21 2003-02-18 Thermodrucker

Country Status (4)

Country Link
EP (1) EP1338423B1 (de)
JP (1) JP2003237118A (de)
CN (1) CN1325276C (de)
DE (1) DE60307530T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100503257C (zh) * 2007-11-28 2009-06-24 莱芜钢铁集团有限公司医院 热敏图文还原仪
JP5881978B2 (ja) * 2011-06-21 2016-03-09 富士通コンポーネント株式会社 サーマルプリンタ
JP5823743B2 (ja) * 2011-06-22 2015-11-25 富士通コンポーネント株式会社 サーマルプリンタ
CA2963532C (en) * 2014-10-03 2023-07-25 Avery Dennison Retail Information Services, Llc Customizable food freshness printer startup wizard
CN104339875A (zh) * 2014-11-25 2015-02-11 广州航新航空科技股份有限公司 打印机以及飞机用数据打印机
US10059126B2 (en) * 2016-04-25 2018-08-28 Seiko Instruments Inc. Thermal printer and portable terminal
JP6685830B2 (ja) * 2016-05-16 2020-04-22 セイコーインスツル株式会社 サーマルプリンタ及び携帯型端末

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5053792A (en) * 1989-08-03 1991-10-01 Mitsubishi Denki K.K. Device for cooling thermal head
IE67875B1 (en) * 1990-11-08 1996-05-01 Balmaha Ltd A printer
JP3309038B2 (ja) * 1995-09-29 2002-07-29 アンリツ株式会社 サーマルヘッド保持構造
JP3462003B2 (ja) * 1996-05-09 2003-11-05 長野富士通コンポーネント株式会社 サーマルプリンタ
FR2766411A1 (fr) * 1997-07-11 1999-01-29 Investix Sa Mecanisme d'impression thermique
US5933180A (en) * 1997-08-05 1999-08-03 Bdt Products, Inc. Thermal print module and method of using same
US6068415A (en) * 1998-11-11 2000-05-30 Eltron International, Inc. Printer with floating print head with alignment surfaces to position printhead
FR2786727B1 (fr) * 1998-12-02 2001-06-01 A P S Engineering Dispositif d'impression thermique a fermeture rapide
JP3734753B2 (ja) * 2001-12-28 2006-01-11 セイコーインスツル株式会社 サーマルプリンタ

Also Published As

Publication number Publication date
CN1439525A (zh) 2003-09-03
JP2003237118A (ja) 2003-08-27
EP1338423A2 (de) 2003-08-27
DE60307530D1 (de) 2006-09-28
EP1338423A3 (de) 2004-04-14
CN1325276C (zh) 2007-07-11
DE60307530T2 (de) 2007-02-15

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