WO2000021757A1 - Imprimante rotative - Google Patents

Imprimante rotative Download PDF

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Publication number
WO2000021757A1
WO2000021757A1 PCT/JP1999/004569 JP9904569W WO0021757A1 WO 2000021757 A1 WO2000021757 A1 WO 2000021757A1 JP 9904569 W JP9904569 W JP 9904569W WO 0021757 A1 WO0021757 A1 WO 0021757A1
Authority
WO
WIPO (PCT)
Prior art keywords
disk
medium
print medium
roller
printing
Prior art date
Application number
PCT/JP1999/004569
Other languages
English (en)
Japanese (ja)
Inventor
Kenichi Nagai
Yasunori Tsukuda
Norihiro Sawamoto
Original Assignee
Star Micronics Co., Ltd.
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
Priority claimed from JP28834898A external-priority patent/JP2000118016A/ja
Priority claimed from JP28834798A external-priority patent/JP2000118015A/ja
Application filed by Star Micronics Co., Ltd. filed Critical Star Micronics Co., Ltd.
Priority to EP99940461A priority Critical patent/EP1120262A4/fr
Publication of WO2000021757A1 publication Critical patent/WO2000021757A1/fr

Links

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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • 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
    • 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
    • B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
    • B41J2202/30—Embodiments of or processes related to thermal heads
    • B41J2202/36—Thermal printing on disk-shaped medium

Definitions

  • the present invention fights against a rotary printing apparatus that prints on a disk printing medium such as a CD-R (Compact Disk-Recordable).
  • a disk printing medium such as a CD-R (Compact Disk-Recordable).
  • CD-R Compact Disk-Recordable
  • CD-ROM Read Only Memory
  • a CD-R on which data has been recorded can be reproduced by the reproducing device, just like a CD and a CD-ROM. It is often used to publish about 100 small-scale software because it is inexpensive, easy to handle, and has a large storage capacity.
  • One side of a CD or CD-ROM is used as a recording side for recording and reading data, and the other side is generally used as a printing side for printing a title or the like.
  • printing is generally performed by a large printing device in order to print large quantities of the same design, whereas in the case of CD-Rs, it is used for small volume publishing and personal use. Or, a small and inexpensive printer that can easily create and change the print content for each sheet has been desired.
  • Such printers include those described in JP-A-5-238005 and JP-A-6-31006. These information recording devices record information on a recording surface of an optical disk from a pickup, and perform ink-jet printing on a printing surface. Printing on an optical disk is performed while moving the ink jet nozzle in the radial direction of the optical disk and rotating the optical disk.
  • Such an information recording device is equipped with a mechanism for guiding ink to an ink cartridge and an ink jet head for inkjet printing, and is further provided with a pickup for recording information. It is.
  • the head and the pickup are provided in the same device, ink scattered from the ink jet head may adhere to the pickup and obstruct the recording of information.
  • maintenance work such as replacement of ink cartridges and cleaning around the ink-jet head is troublesome.
  • the present invention provides a thermal head for performing thermal printing in a main scanning direction along a radial direction of a disk printing medium having a thermosensitive coloring layer,
  • a rotary printing device comprising: a rotary drive unit configured to rotate the disk print medium in contact with an outer peripheral portion thereof.
  • the rotation torque T applied to the disk print medium can be as large as the radius R of the radius RX external force F, so that a small driving force can be obtained. And a large rotation torque can be obtained.
  • the frictional resistance between the two is relatively large because the thermal head and the medium need to be brought into uniform contact with each other. Therefore, as the motor is driven with a large rotating torque, the influence of load fluctuations due to friction, disturbance, and the like can be reduced, so that rotation speed fluctuations are reduced, and high-quality images can be printed.
  • one surface is a data recording surface to which an optical pickup can access, and the other surface is a label printing surface, and both sides dislike stains and scratches. Therefore, by adopting the rotation driving method that contacts the outer peripheral portion, the influence on the data recording surface and the label printing surface can be avoided.
  • the drive transmission Since the effects of mechanical errors and transmission losses can be minimized, the rotational speed can be stabilized.
  • the rotation driving means includes: a pinch roller for pressing an outer peripheral portion of the disk print medium; a roller driving mechanism for driving the pinch roller; and a contact with the outer peripheral portion by displacing the pinch roller.
  • a roller displacement mechanism for controlling separation.
  • the pinch roller presses the outer peripheral portion of the disk print medium, so that torque can be smoothly transmitted to the disk print medium.
  • uneven rotation is absorbed by the elasticity of the pinch roller itself, and the rotation speed is stabilized.
  • the rotation driving means includes a belt that contacts an outer peripheral portion of the disk print medium, a belt driving mechanism that drives the belt in a longitudinal direction, and a tension control mechanism that controls the tension of the belt.
  • it is configured.
  • rotation unevenness is absorbed by the elasticity of the belt itself, and a long contact length between the outer peripheral portion and the belt can be ensured. Therefore, rotation unevenness factors such as torque fluctuation, dimensional error of the belt and the print medium, etc. Are averaged, and the rotation speed is stabilized.
  • the present invention also provides a thermal head for performing thermal printing in a main scanning direction along a radial direction of a disk printing medium having a thermosensitive coloring layer,
  • a head pressing means for pressing the thermal head against the disk printing medium, and the disk printing in a sub-scanning direction along a circumferential direction of the disk printing medium against the head pressing force.
  • a backup roller for rotatably supporting the medium,
  • the backup roller is a conical roller whose diameter increases toward the outer circumference of the disk print medium.
  • the present invention provides a rotary printing apparatus characterized in that the rotary printing apparatus is formed by a tank.
  • the knock-up roller is a conical roller
  • the peripheral speed of the knock-up roller increases toward the outer peripheral side of the disk printing medium, so that the radius from the center of the disk printing medium increases. It can cope with the difference in inner and outer velocities where the peripheral speed increases. Therefore, since the tangential speeds of the disk print medium and the backup roller match regardless of the radial position from the center, slippage due to the difference between the inner and outer peripheral speeds does not occur, and the rotational movement of the disk print medium can be stably maintained.
  • the backup roller is a cylindrical roller, slippage occurs due to the difference in the inner and outer peripheral velocities of the disk print medium, causing a problem that stable rotation support cannot be obtained.
  • the thermal head and the medium need to be uniformly adhered. Therefore, by arranging the back-up roller so as to face the entire recording area pressed by the thermal head, the head pressing force is made uniform, so that a high-quality image can be printed.
  • the backup roller is formed of a material having low elasticity and hardness, such as rubber.
  • the backup roller is a driving roller that rotates a disk print medium.
  • the grip force between the disk print medium and the backup roller is dispersed in the radial direction by rotating the disk print medium by the conical back at roller, and furthermore, the contact area between the two. Therefore, the driving force from the backup roller can be reliably transmitted to the disk printing medium.
  • the backup roller by directly driving the backup roller in contact with the disk printing medium, the influence of mechanical errors and transmission loss of the drive transmission system can be reduced as much as possible, so that the rotational speed can be stabilized.
  • the back at roller is made of rubber or the like, the elasticity of the roller itself absorbs uneven rotation and stabilizes the rotation speed.
  • the backup roller doubles as the drive roller, This eliminates the need for a roller, contributing to a reduction in the number of parts and miniaturization of the equipment.
  • the present invention also provides a thermal head for performing thermal printing in a main scanning direction along a radial direction of a disk printing medium having a thermosensitive coloring layer,
  • a head pressing means for pressing the thermal head against the disk printing medium, and the disk printing in a sub-scanning direction along a circumferential direction of the disk printing medium against the head pressing force.
  • a backup roller for rotatably supporting the medium,
  • the rotary printing apparatus is characterized in that the backup roller is arranged along the radial direction of the disk print medium and is constituted by a plurality of individual rollers that rotate independently of each other.
  • a plurality of individual rollers arranged along the radial direction of the disk print medium support the disk print medium, and each individual roller rotates independently, so that the radius from the center of the disk print medium is increased.
  • the backup roller is a single cylindrical roller
  • slippage occurs due to a difference in the inner and outer peripheral velocities of the disk print medium, causing a problem that stable rotation support cannot be obtained.
  • the thermal head and the medium need to be uniformly adhered. Therefore, by arranging a large number of individual rollers so as to face the entire recording area pressed by the thermal head, the head pressing force is made uniform, so that a high-quality image can be printed.
  • the backup roller is formed of a material having low elasticity and hardness, such as rubber.
  • one of the individual rollers is a drive roller for rotating the disk print medium, and the other is a driven roller.
  • one of the plurality of individual rollers is used as a driving roller.
  • a large torque R can be obtained with a small drive force because a large radius R can be secured among the rotational torque T applied to the disk print medium and the radius RX force F. .
  • the back-at roller in contact with the disk print medium, the influence of mechanical errors and transmission loss of the drive transmission system can be minimized, so that the rotational speed can be stabilized.
  • the backup roller is formed of rubber or the like, rotation unevenness is absorbed by the elasticity of the roller itself, and the rotation speed is stabilized.
  • another driving roller is not required, which contributes to a reduction in the number of parts and a reduction in the size of the apparatus.
  • the present invention by rotating the disk print medium while the pair of nip rollers hold the outer peripheral portion from both sides, slippage between the nip roller and the disk print medium due to an increase in grip force can be eliminated.
  • the rotation speed is stabilized. Rotational unevenness is also absorbed by the elasticity of the holding roller itself.
  • the present invention provides a thermal head for ripening printing in a main scanning direction along a radial direction of a disk printing medium having a thermal coloring layer,
  • a backup roller for supporting the rotary table so as to oppose the pressing force of the head.
  • the backup roller is disposed on the opposite side of the thermal head with respect to the rotary table, and the rotary table is supported so as to oppose the head pressing force. It can support the tilting moment of the table, and can maintain uniform contact between the thermal head and the disk printing medium.
  • the supporting position of the back at roller is preferably farther from the center of the rotary table, It can support a larger troubled moment.
  • the thermal head and the medium need to be uniformly adhered. Therefore, by arranging the rotary table so as to face the entire recording area pressed by the thermal head, the head pressing force is made uniform, so that a high-quality image can be printed.
  • one surface is a data recording surface to which an optical pickup can access, and the other surface is a label printing surface, and both sides dislike stains and scratches. Therefore, dirt and scratches can be prevented by interposing a rotary table between the disk printing medium and the back-at roller.
  • the use of the rotary table for mounting the disk print medium increases the moment of inertia for the rotary table as compared with the case where the medium is used alone, so that the rotation speed fluctuation is reduced.
  • the backup roller is a driving roller that rotates a rotary table.
  • the knock-up roller also serves as the drive roller, another drive roller is not required, which contributes to a reduction in the number of parts and a reduction in the size of the apparatus.
  • the support position of the backup roller is preferably farther from the center of the rotary table.
  • Rotary torque T applied to the rotary table Radius RX force F
  • Large radius R can be secured, so large rotation with small driving force Torque is obtained.
  • the frictional resistance between the thermal head and the medium is relatively large because the thermal head and the medium need to be brought into uniform contact. Therefore, the greater the driving torque, the less the effect of load fluctuations due to friction, disturbance, etc., so that fluctuations in rotation speed are reduced and high-quality images can be printed.
  • the disc printing medium has an optically readable data recording surface
  • the data can be stored in the rotary printing apparatus. Since a rotary reading device can be provided, the rotary printing device can be used as an optical disk drive device, and space can be saved. It is also possible to record print data in advance on the data recording surface of an unprinted disc printing medium, and to perform rotary printing on the disc printing medium based on print data read by an optical pickup. Further, the optical pickup may be configured for writing on the data recording surface. [Brief description of the drawings]
  • FIG. 1 is a perspective view illustrating a thermal recording system according to the present invention.
  • FIG. 2A is a cross-sectional view showing the structure of the thermal printing sheet 21 used as the disk printing medium of FIG. 1, and FIG. 2B is a sectional view of the medium 19 in which the thermal printing sheet 21 is attached to the optical disc 20. It is sectional drawing which shows a structure.
  • FIG. 3 is a block diagram showing an electrical configuration of the rotary printing apparatus 10.
  • FIG. 4 is a timing chart showing the operation of the rotary printing apparatus 10.
  • FIG. 5A to 5F are diagrams showing the printing state of the disk printing medium M in a stepwise manner.
  • FIG. 6 is a configuration diagram showing the first embodiment of the present invention.
  • FIG. 7 is a comparative example.
  • FIG. 8 is a plan view showing the first embodiment of the present invention.
  • FIG. 9A and 9B are configuration diagrams showing another embodiment of the pinch roller 31.
  • FIG. 9A and 9B are configuration diagrams showing another embodiment of the pinch roller 31.
  • FIGS. 10A and 10B are configuration diagrams showing a second embodiment of the present invention.
  • FIG. 10A shows a rotating state of the disk printing medium M
  • FIG. 10B shows a state of removing the medium M.
  • FIGS. 11A and 11B are configuration diagrams illustrating a third embodiment of the present invention.
  • FIG. 12 is a configuration diagram showing a fourth embodiment of the present invention.
  • FIGS. 13A and 13B are configuration diagrams showing a fifth embodiment of the present invention.
  • FIG. 13A shows a plan view
  • FIG. 13B shows a side view.
  • FIG. 14 is a configuration diagram showing a sixth embodiment of the present invention.
  • FIG. 15 is a configuration diagram showing a seventh embodiment of the present invention.
  • FIG. 1 is a perspective view illustrating a thermal recording system according to the present invention.
  • the rotary printing device 10 includes a thermal head 11, a knock at roller 12, and cathode tubes 13, 14. Prepare and print on the disk print medium M.
  • the disc printing medium M is a disc-shaped printing medium having a thermosensitive coloring layer that develops color when ripening is applied.
  • the thermal head 11 is a line-type thermal head extending in the radial direction of the disk print medium M.
  • the stepping motor 15 drives the disk print medium M to rotate around its axis.
  • the backup roller 12 is a roller whose surface is covered with rubber and which supports the disk print medium M from the back side in response to pressure from the surface by the thermal head 11 and rotates with the rotation of the disk print medium. .
  • the cathode tubes 13 and 14 emit ultraviolet rays having a wavelength for fixing the coloring layer of the disk printing medium M.
  • Such a rotary printing apparatus 10 is arranged such that the radial direction of the disk printing medium M is the main scanning direction, the circumferential direction of the disk printing medium M is the sub-scanning direction, and the radial direction and the circumferential direction of the disk printing medium M are Printing is carried out by selectively supplying heat to the pixel areas arranged in a matrix to develop color.
  • thermal head 11 in FIG. 1 may be configured by a serial head that can scan along the radial direction of the disk print medium M. Also, a turntable can be used in place of the backup roller 12 in FIG.
  • FIG. 2A is a cross-sectional view showing the structure of the sensitive printing sheet 21 used as the disc printing medium in FIG. 1, and FIG. 2B is a medium 19 on which the thermal printing sheet 21 is attached to the optical disc 20.
  • FIG. 3 is a cross-sectional view showing the structure of FIG.
  • the thermal printing sheet 21 of FIG. 2A has a cross-sectional structure similar to that of the multicolor thermal recording sheet described in JP-A-3-432393 and JP-A-5-69656.
  • a printing method that applies ripening to the multicolor thermal recording sheet to develop and print colors is called TA (Therrao-Auto Chrome) method.
  • the rotary printing apparatus 10 of the present embodiment is also a TA-type printing apparatus.
  • the thermal printing sheet 21 is formed by forming a sensitive coloring layer 23 on the surface of a base material 22 such as paper, and has a disk-like planar shape.
  • the thermosensitive coloring layer 23 includes a yellow coloring layer 23a, a magenta coloring layer 23b, and a cyan coloring layer 23c.
  • Yellow coloring layer 2 3 a comprises a yellow dye material and couplers microencapsulated, to 2 0 m J / mm 2 or more mature energy is applied Then, they pass through the microcapsules and react to form a color.
  • the yellow coloring layer 23a is irradiated with ultraviolet light having a wavelength of 420 nm, whereby the unreacted yellow coloring material is decomposed and no more coloring is performed.
  • Magenta coloring layer 23 b comprises a magenta dye material and couplers microencapsulated, connexion by that 40 mJ / mm 2 or more thermal energy is applied, both transmitted through the microcapsules to react Color develops.
  • the magenta coloring layer 23b is irradiated with ultraviolet light having a wavelength of 365 nm, the unreacted magenta coloring material is decomposed, and no more color is formed.
  • the cyan coloring layer 23c contains a dye encapsulated in microcapsules, and develops a color when heat energy of about 80 mJ / mm 2 or more is applied.
  • support head 1 1 to the one circle in FIG. 1, 20 m J / mm 2 ⁇ 40 m J / mm 2 of thermal energy, 40 m J / mm 2 thermal energy ⁇ 80mJ / mm 2 and 80 m J / either thermal energy of the thermal energy of mm 2 ⁇ 120mJZmm 2 can be supplied.
  • the cathode tube 13 emits ultraviolet light having a wavelength of 420 nm in order to fix the yellow coloring layer 23a.
  • the cathode tube 14 emits ultraviolet light having a wavelength of 365 nm to fix the magenta coloring layer 23b.
  • the medium 19 in FIG. 2B is a medium in which a thermal printing sheet 21 is adhered to a printing surface 20 a of an optical disk 20 such as a CD-R via an adhesive layer 24.
  • the optical disc 20 is formed by laminating an organic dye layer 25, a reflective layer 26 made of metal, and a protective layer 27 on a polycarbonate substrate 30 in this order.
  • data is recorded by irradiating a laser beam from the recording surface 20b to change the phase of the organic dye layer 25.
  • the optical disk 20 that can be used in the rotary printing device 10 is not limited to such a configuration, and may be, for example, a CD, a CD-ROM, a CD-RW (Rewritable), or the like. DVD (Digital Video Disk) -ROM, DVD-RAM (Random Access Memory), DVD-R.
  • the thermal printing sheet 21 in FIG. 2A may be used as it is, or the medium 19 in FIG. 2B may be used. If the thermal printing sheet 21 is used as it is, the thermal printing sheet 21 can be attached to the optical disc 20 after printing. it can. Further, the thermal coloring layer 23 may be formed directly on the optical disc 20 by vapor deposition or the like.
  • FIG. 3 is a block diagram showing an electrical configuration of the rotary printing apparatus 10.
  • the interface (I / F) 94 performs data transmission to and from an external host such as a personal computer by parallel communication or serial communication, and receives image data to be printed from the external host, for example, and receives image data from the external host. Sends status data indicating an operation status of 0.
  • the CPU (central processing unit) 91 operates according to a predetermined program stored in a ROM (read only memory) 92 or the like, and performs signal processing for the thermal head 11, a stepping motor 15, and a cathode ray tube 1. Controls the entire operation such as the operations of 3. and 14.
  • the ROM 92 is a non-volatile memory that stores programs and various data of the CPU 91.
  • the RAM 93 is a volatile memory for storing print data and various data, and also functions as a buffer memory for continuously developing image data. Also, the function of the buffer memory for data expansion may be performed by the memory of the external host, so that the memory capacity of the device 10 may be reduced.
  • FIG. 4 is a timing chart showing the operation of the rotary printing apparatus 10
  • FIGS. 5A to 5F are diagrams showing the printing state of the disk printing medium M in a stepwise manner.
  • print image data created by an external host is transmitted to the thermal head 11 via the I / F 94 and the CPU 91.
  • energization of the stepping motor 15 is started, and the stepping motor 15 rotates the disk printing medium M at a constant rotation speed.
  • FIG. 5A energization of the thermal head 11 is started, and thermal energy of the minimum thermosensitive coloring level is applied to the disk printing medium M. As a result, the yellow coloring layer 23a is colored.
  • FIG. 5B when the leading line 73 of the colored region 75 of the yellow coloring layer 23a reaches the end 71b of the light irradiation region 71, the cathode tube 1 Start supplying electricity to 3. Thereby, the light from the cathode tube 13 is irradiated on the disk print medium M.
  • the light irradiation area 71 is an area to which light from the cathode tube 13 is irradiated.
  • the first line 7 3 has reached the thermal head 11 again. At this time, the energization of the thermal head 11 is terminated, and the coloring of the yellow coloring layer 23a is terminated.
  • the cathode tube 1 Start energizing 4.
  • the light from the cathode tube 14 is irradiated on the disk printing medium M, and the magenta coloring layer 23b is fixed.
  • the light irradiation area 72 is an area where light from the cathode tube 14 is irradiated.
  • FIG. 6 is a configuration diagram showing the first embodiment of the present invention
  • FIG. 7 is a comparative example
  • FIG. 8 is a plan view showing the first embodiment of the present invention.
  • the disc printing medium M is placed on the turntable 19.
  • an engagement protrusion having an outer diameter substantially the same as the center hole of the disk print medium M is provided, and the disk print medium M is centered.
  • the thermal head 11 is arranged along the radial direction of the disk print medium M, and is pressed against the disk print medium M with a pressing force Ft by a spring 11a attached to the apparatus cover.
  • the backup roller 12 is driven and rotated to oppose the pressing force Ft, and stably supports the rotating surface of the disk print medium M.
  • FIG. 6 shows the cylindrical backup roller 12, a conical roller as shown in FIG. 1 may be used.
  • the pinch roller 31 connected to the motor 15 is disposed on an extension of the recording line of the thermal head 11 and directly rotates the disk printing medium M.
  • the pinch roller 31 is made of rubber or the like which is unlikely to slide with the medium M, and presses the outer peripheral portion of the disk print medium M with a pressing force FP toward the center of rotation and toward the center.
  • the disk print medium M is supported against the above. Since the disc printing medium M is positioned by the balance of these forces, the medium clamping mechanism facing the turntable 19 may be omitted.
  • the rotation angle of the turntable 19 is detected by the rotary encoder RE, and by using the detection signal as a feedback signal of the motor 15, the rotation angle and the rotation speed of the disk print medium M can be accurately controlled.
  • Direct rotation of the outer circumference by the pinch roller 31 enables a large rotational torque to be obtained with a small driving force.
  • the unevenness of rotation is absorbed by the elasticity of the pinch roller 31 itself, and the rotation speed is stabilized.
  • FIG. 8 shows the displacement mechanism of the pinch roller 31 in detail.
  • the pinch roller 3 1 and the gear 3 2 rotating integrally therewith are combined with the intermediate gear 3 3, the intermediate gear 3 3 is combined with the drive gear 3 4, and the drive gear 3 4 is provided by the drive shaft 3 5 of the motor 15. It is driven to rotate.
  • the pinch roller 31 and the gear 32 are pivotally supported at the tip of the lever 37.
  • the lever 37 is pivotally supported around an axis coinciding with the axis of the intermediate gear 33.
  • the rear end of the lever 37 is engaged with the spring 36, and the restoring force of the spring 36 generates a pressing force Fp for pressing the pinch roller 31 against the medium M.
  • An electromagnetic plunger 38 for controlling the expansion and contraction of the spring 36 is attached to the rear end of the lever 37, and controls contact or separation between the pinch roller 31 and the outer peripheral portion of the medium M.
  • FIG. 8 shows the rotational drive state of the medium M.
  • the electromagnetic plunger 38 turned off, the pinch roller 31 pressing the outer peripheral portion of the medium M by the spring 36, the motor 15 drives the drive gear 34, The pinch roller 31 is driven via the intermediate gear 33 and the gear 32, and the medium M is finally driven to rotate.
  • the lever 37 is angularly displaced by energization of the electromagnetic plunger 38, and the pinch roller 31 is separated from the outer peripheral portion of the medium M.
  • the operation of the electromagnetic plunger 38 can be linked to the opening and closing of the device cover.
  • the pinch roller 31 is displaced and separated from the outer peripheral portion, thereby making it easier to mount or replace the disk print medium M. Further, when the pinch roller 31 is made of rubber, the roller is prevented from being deformed with time by keeping the separated state except during the printing operation.
  • FIG. 9A and 9B are configuration diagrams showing another embodiment of the pinch roller 31.
  • FIG. 9A two pinch rollers 31 are provided so as to contact the front edge and the rear edge of the outer peripheral portion of the medium M at an angle of 45 degrees.
  • a pressing force FP is generated on the outer periphery of the disk print medium M in the rotation plane and toward the center. In both cases, the medium M can be driven to rotate by the rotation of the pinch roller 31.
  • a pinch roller 31 having a V-shaped groove formed on the outer peripheral surface is provided, and makes contact with the front side edge and the rear side edge of the medium M at an oblique angle of 45 degrees.
  • the pressing force Fp is generated on the outer peripheral portion of the disk printing medium M in the rotation plane and toward the center, and the rotation of the pinch roller 31 drives the medium M.
  • FIGS. 10A and 10B are configuration diagrams showing a second embodiment of the present invention.
  • FIG. 10A shows a rotating state of the disc printing medium M
  • FIG. 10B shows a removing state of the medium M.
  • the disk print medium M is placed on a turntable 19 having a centering engagement protrusion similar to that shown in FIG.
  • the thermal head 11 is arranged along the radial direction of the disk printing medium M, and is pressed against the disk printing medium M by a pressing force Ft by a spring attached to an apparatus cover.
  • a back-up roller that is driven and rotated to oppose the pressing force Ft is provided.
  • the belt 40 is attached so as to bridge between the outer peripheral portion of the disk print medium M and the drive early 42 connected to the motor 15, and the belt 40 is further provided with the drive early 42 and the driven belt. It is nipped by the pressing roller 43.
  • the belt 40 is formed of a flexible rubber or the like, which does not easily slide with the body M or the driving pulley 42.
  • the drive unit composed of the drive pulley 42, the belt pressing roller 43, the motor 15 and the like is urged by a spring mechanism or the like with a pressing force Fb so as to apply a predetermined tension to the belt 40.
  • the outer peripheral portion of the disk print medium M is pressed toward the center of rotation and toward the center of rotation, and the turntable 19 supports the disk print medium M. Since the disc printing medium M is positioned by the balance of these forces, the medium clamping mechanism facing the turntable 19 may be omitted.
  • the rotation angle of the turntable 19 is detected by a rotary encoder or the like, and by using the detection signal as a feedback signal of the motor 15, the rotation angle and the rotation speed of the disk print medium M can be accurately controlled.
  • the belt 40 is driven in the longitudinal direction, and the disk printing medium M that comes into contact with the belt 40 is driven to rotate.
  • the outer peripheral direct drive By the outer peripheral direct drive, a large rotational torque can be obtained with a small driving force, so that the disk printing medium M can be rotationally driven stably.
  • the rotation unevenness is absorbed by the elasticity of the belt 40 itself, and a long contact length between the outer peripheral portion and the belt 40 can be ensured. Factors are averaged, and rotation speed is stabilized.
  • the drive unit When the medium M is removed from the turntable 19, as shown in FIG. 10B, the drive unit is displaced toward the medium M, and the belt 40 is slackened by loosening the tension of the belt 40. Separated from the outer periphery of the medium M. At this time, belt guides 41a to 41c are provided so that the position of the belt 40 does not largely deviate, and the reproducibility of the belt 40 mounting position is ensured. 1c moves with the drive unit. Note that the displacement operation of the drive unit can be linked with the opening and closing of the device cover.
  • FIGS. 11A and 11B are configuration diagrams showing a third embodiment of the present invention.
  • FIG. 11A shows a rotation printing mode
  • FIG. 11B shows a data reading mode.
  • the disk print medium M is placed on the turntable 19 and is held from above by the clamp 30 attached to the apparatus cover.
  • an engagement protrusion having an outer diameter substantially equal to the center hole of the disk print medium M is provided, and the disk print medium M is centered.
  • the thermal head 11 is arranged along the radial direction of the disk printing medium M, and is pressed against the disk printing medium M with a pressing force Ft by a spring 11a attached to the apparatus cover.
  • the backup roller 12 is constituted by a conical roller whose diameter increases toward the outer peripheral side of the disk print medium M.
  • the center line of rotation of the conical roller passes through the center of the back surface of the disc printing medium M, and the angle formed between the center line of rotation and the back surface of the medium defines the angle of the conical generatrix.
  • the shaft of the knock-up roller 12 is connected to the motor 15 via gears 16 and 17, and the driving torque of the motor 15 is transmitted to the backup roller 12 so that the knock-up roller 12
  • the print medium M is rotated in direct contact with the back surface of the print medium M.
  • the backup roller 12 is disposed so as to face the entire recording area pressed by the thermal head 11, the head pressing force is made uniform, and a high-quality image with little unevenness in recording intensity can be printed.
  • the backup roller 12 is preferably formed of a material having low elasticity and hardness, such as rubber, in order to protect the back surface of the disk print medium M and absorb vibration and uneven rotation.
  • the rotation angle of the turntable 19 is detected by the rotary encoder RE, and by using the detection signal as a feedback signal of the motor 15, the rotation angle and the rotation speed of the disk print medium M can be accurately controlled.
  • a data reading function can be provided to the rotary printing apparatus by providing the optical pickup 85.
  • the optical pickup 85 is positioned in the radial direction of the disk print medium M by a motor 87 and a lead screw 86.
  • the disk print medium M is rotated by a motor 88 connected to a turntable 19 at a rotational speed of, for example, a CD standard speed (about 500 rpm) or more, and data is read and written at a constant linear speed.
  • the rotation speed of the motor 88 is variable depending on the position of the optical pickup 85.
  • the information read by the optical pickup 85 is temporarily stored in a memory or the like of the data processing unit 89, and then the mode shifts to the rotation printing mode, and the thermal head 11 is moved based on the read information.
  • the information recorded on the data recording surface of the disk printing medium M can be printed on the label printing surface.
  • the title of a CD, character information such as an identification code and a copyright number, or the image information of a label are recorded in advance on a data recording surface, and a large amount of rotational print data can be obtained simply by reading such information. Can be generated. Accordingly, it is not necessary to separately prepare rotational print data, and it is possible to easily realize different label printing for each disk printing medium M.
  • FIG. 12 is a configuration diagram showing a fourth embodiment of the present invention.
  • the disk print medium M is placed on the rotating table 19 and is held from above by a clamp 30 attached to an apparatus cover.
  • a clamp 30 attached to an apparatus cover.
  • an engagement protrusion having an outer diameter substantially the same as the center hole of the disk print medium M is provided, and the disk print medium M is centered.
  • the thermal head 11 is arranged along the radial direction of the disk print medium M, and is pressed against the disk print medium M with a pressing force Ft by a spring 11a attached to the apparatus cover.
  • the backup roller 12 is arranged along the radial direction of the disk print medium M so as to oppose the pressing force Ft, and is configured by a plurality of individual rollers 12a that rotate independently of each other. Since the individual rollers 12a rotate independently of each other according to the peripheral speed that changes according to the contact radius of the disk printing medium M, slippage due to the difference in inner and outer peripheral speeds does not occur, and the disk printing medium M Stably supports the rotating surface.
  • Each individual roller 12a is pivotally supported by a shaft 12b, and only the outermost individual roller 12a rotates integrally with the gear 17 and the motor 15 through the gears 16 and 17. Linked to Have been. In this way, the driving torque of the motor 15 is transmitted to the outermost individual roller 12a, and the individual roller 12a is brought into direct contact with the back surface of the disk print medium M and is rotationally driven. The remaining individual rollers 12a are driven and rotated in accordance with the rotation of the disk printing medium M. Also, it is preferable to select the individual roller 12a located at the outermost periphery as a driving roller, with a small driving force. Large rotating torque can be generated.
  • the head pressing force applied to the disk print medium M is made uniform, and High quality images with less unevenness can be printed.
  • the individual roller 12a is preferably formed of a material having low elasticity and hardness, such as rubber.
  • the rotation angle of the turntable 19 is detected by a rotary encoder and the detection signal is used as a feedback signal of the motor 15 to rotate the disk print medium M. Angle and rotation speed can be controlled with high accuracy.
  • FIGS. 13A and 13B are configuration diagrams showing a fifth embodiment of the present invention.
  • FIG. 13A shows a plan view
  • FIG. 13B shows a side view.
  • the disk print medium M is placed on the turntable 19 and is held from above by a clamp 30 attached to the apparatus cover.
  • a clamp 30 attached to the apparatus cover.
  • an engagement projection having an outer diameter substantially the same as the center hole of the disk print medium M is provided, and the disk print medium M is centered.
  • the thermal head 11 is arranged along the radial direction of the disk printing medium M, and is pressed against the disk printing medium M with a pressing force Ft by a spring attached to an apparatus cover.
  • a plurality of nipping roller pairs (three places in FIG. 13A) are arranged on the same radius for nipping the outer peripheral portion of the disk printing medium M, and one of the nipping roller pairs is a driving roller 50a to 50c.
  • the other is driven rollers 51a to 51c.
  • the drive roller 50a is driven by a motor 15 via gears 16 and 17, and the other drive rollers 50b and 50c are also driven by a single motor via a transmission mechanism (not shown) such as a belt. Driven by 1 5 All the drive rollers 50a to 50c rotate the medium M at the same rotation speed.
  • the sandwiching roller pair is formed of rubber or the like, and rotation unevenness is absorbed by the elasticity of the roller itself.
  • a backup roller 12 composed of a plurality of individual rollers 12 a that is driven and rotated to oppose the pressing force F t is arranged along the radial direction of the disk print medium M. . Since the individual rollers 12a rotate independently of each other according to the peripheral speed that changes according to the contact radius of the disk printing medium M, slippage due to the difference in inner and outer peripheral speeds does not occur, and the rotating surface of the disk printing medium M Is stably supported.
  • FIG. 14 is a configuration diagram showing a sixth embodiment of the present invention.
  • the disk printing medium M is placed on a turntable 55 having a diameter equal to or greater than the outer diameter of the medium M.
  • an engagement protrusion having substantially the same outer diameter as the center hole of the disc printing medium M is provided, and the disc printing medium M is centered.
  • a rubber sheet 56 for improving the grip force with the medium M, suppressing vibration, and making the pressing force Ft uniform is placed.
  • the disc printing medium M is sandwiched between the turntable 55 and the clamp 30 with a pressing force Fc, and the turntable 55 is rotatably supported by a shaft 57 so as to oppose the pressing force Fc. Driven by motor 15 through 58,59.
  • the thermal head 11 is arranged along the radial direction of the disk print medium M, and is pressed against the disk print medium M with a pressing force Ft by a spring attached to the apparatus cover.
  • a cylindrical portion 55a is formed extending from the outer peripheral portion of the turntable 55 in parallel with the direction of the rotation axis.
  • a dynamically rotating backup roller 60 is provided.
  • the surface of the turntable 55 can be supported, and the uniformity between the thermal head 11 and the disk print medium M can be maintained. Good adhesion can be maintained. Also a big straight By using the turntable 55 having a diameter, the moment of inertia is increased and the fluctuation of the rotation speed is reduced.
  • FIG. 15 is a configuration diagram showing a seventh embodiment of the present invention.
  • the disk printing medium M is placed on a turntable 55 having a diameter equal to or greater than the outer diameter of the medium M.
  • an engagement projection having an outer diameter substantially the same as the center hole of the disc printing medium M is provided, and the disc printing medium M is centered.
  • a rubber sheet 56 for improving the grip force with the medium M, suppressing vibration, and making the pressing force Ft uniform is placed.
  • the disc printing medium M is held between the turntable 55 and the clamp 30 with a pressing force Fc, and the turntable 55 is rotatably supported by a shaft 57 so as to oppose the pressing force Fc.
  • the thermal head 11 is arranged along the radial direction of the disk printing medium M, and is pressed against the disk printing medium M with a pressing force Ft by a spring attached to the device cover.
  • a cylindrical portion 55a is formed extending from the outer periphery of the turntable 55 in parallel with the direction of the rotation axis, and comes into contact with the end face of the cylindrical portion 55a to drive.
  • a back rotating roller 61 is provided which rotates dynamically. Knockup roller 61 is driven by motor 15.
  • the backup roller 61 drives the outer periphery of the turntable 55 to rotate, a large rotating torque can be obtained with a small driving force, so that rotation speed fluctuations are reduced and a high-quality image can be printed.
  • a large rotational torque can be obtained with a small driving force by rotating the disk medium in contact with the outer peripheral portion of the disk print medium.
  • the degree of fluctuation is small and high quality images can be printed.
  • a backup roller for confronting the head pressing force with a conical roller or a plurality of individual rollers, it is possible to cope with the difference in the inner and outer velocities of the disk print medium, and the slip caused by the inner and outer velocities is different. And the rotational movement of the disk print medium can be stably maintained.
  • the backup roller also serves as the drive roller, a separate drive roller is not required, which contributes to a reduction in the number of parts and a reduction in the size of the apparatus.

Landscapes

  • Electronic Switches (AREA)
  • Dot-Matrix Printers And Others (AREA)

Abstract

L'invention concerne une imprimante rotative qui comprend une tête d'impression thermique (11) pour imprimer le long d'une direction d'alimentation principale ou d'une direction radiale d'un support d'impression à disque (M) comportant une couche colorante thermosensible; un ressort (11a) pour presser la tête d'impression thermique (11) contre le support d'impression à disque (M); une plaque tournante (19) pour soutenir et faire tourner le support (M) dans la direction d'alimentation secondaire ou dans une direction circonférencielle du support d'impression à disque (M); et un rouleau presseur (31) pour entraîner le support d'impression à disque (M) par contact avec son bord périphérique. Cette imprimante fait tourner le support à disque de manière stable, ce qui donne des impressions de qualité.
PCT/JP1999/004569 1998-10-09 1999-08-25 Imprimante rotative WO2000021757A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99940461A EP1120262A4 (fr) 1998-10-09 1999-08-25 Imprimante rotative

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP28834898A JP2000118016A (ja) 1998-10-09 1998-10-09 回転印刷装置
JP10/288348 1998-10-09
JP10/288347 1998-10-09
JP28834798A JP2000118015A (ja) 1998-10-09 1998-10-09 回転印刷装置

Publications (1)

Publication Number Publication Date
WO2000021757A1 true WO2000021757A1 (fr) 2000-04-20

Family

ID=26557135

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/004569 WO2000021757A1 (fr) 1998-10-09 1999-08-25 Imprimante rotative

Country Status (2)

Country Link
EP (1) EP1120262A4 (fr)
WO (1) WO2000021757A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0412969D0 (en) * 2004-06-10 2004-07-14 Esselte Thermal laser printing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0242221U (fr) * 1988-09-09 1990-03-23
JPH0343293A (ja) 1989-07-11 1991-02-25 Fuji Photo Film Co Ltd 画像記録方法
JPH0569566A (ja) 1991-09-13 1993-03-23 Fuji Photo Film Co Ltd 多色感熱記録装置
JPH05238005A (ja) 1992-02-28 1993-09-17 Taiyo Yuden Co Ltd ディスクのレーベル印刷装置及び光ディスクの情報記録装置
JPH0631906A (ja) 1992-07-13 1994-02-08 Taiyo Yuden Co Ltd ディスクのレーベル印刷装置及び光ディスクの情報記録装置
JPH06338079A (ja) * 1993-05-26 1994-12-06 Alps Electric Co Ltd ディスク状記録媒体、及びその記録媒体を用いた装置
JPH07220281A (ja) * 1994-02-01 1995-08-18 Hitachi Ltd 光ディスクおよび光ディスクシステム

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5045523A (en) * 1989-02-06 1991-09-03 Mitsubishi Paper Mills Limited Heat-sensitive recording materials
JP3341572B2 (ja) * 1996-03-27 2002-11-05 セイコーエプソン株式会社 光ディスク装置
GB2320912B (en) * 1997-01-07 2001-12-05 Eastman Kodak Co Apparatus and process for digital printing images in annular-radial coordinate s onto discs

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0242221U (fr) * 1988-09-09 1990-03-23
JPH0343293A (ja) 1989-07-11 1991-02-25 Fuji Photo Film Co Ltd 画像記録方法
JPH0569566A (ja) 1991-09-13 1993-03-23 Fuji Photo Film Co Ltd 多色感熱記録装置
JPH05238005A (ja) 1992-02-28 1993-09-17 Taiyo Yuden Co Ltd ディスクのレーベル印刷装置及び光ディスクの情報記録装置
JPH0631906A (ja) 1992-07-13 1994-02-08 Taiyo Yuden Co Ltd ディスクのレーベル印刷装置及び光ディスクの情報記録装置
JPH06338079A (ja) * 1993-05-26 1994-12-06 Alps Electric Co Ltd ディスク状記録媒体、及びその記録媒体を用いた装置
JPH07220281A (ja) * 1994-02-01 1995-08-18 Hitachi Ltd 光ディスクおよび光ディスクシステム

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1120262A4 *

Also Published As

Publication number Publication date
EP1120262A1 (fr) 2001-08-01
EP1120262A4 (fr) 2002-01-16

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