EP2371751A2 - Support de grande taille pour imprimante - Google Patents

Support de grande taille pour imprimante Download PDF

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Publication number
EP2371751A2
EP2371751A2 EP11155752A EP11155752A EP2371751A2 EP 2371751 A2 EP2371751 A2 EP 2371751A2 EP 11155752 A EP11155752 A EP 11155752A EP 11155752 A EP11155752 A EP 11155752A EP 2371751 A2 EP2371751 A2 EP 2371751A2
Authority
EP
European Patent Office
Prior art keywords
tape
core
end portion
main body
force
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.)
Withdrawn
Application number
EP11155752A
Other languages
German (de)
English (en)
Other versions
EP2371751A3 (fr
Inventor
Hideki Sakano
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 Epson Corp
Original Assignee
Seiko Epson Corp
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 Epson Corp filed Critical Seiko Epson Corp
Publication of EP2371751A2 publication Critical patent/EP2371751A2/fr
Publication of EP2371751A3 publication Critical patent/EP2371751A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/28—Arrangements for positively securing ends of 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
    • B41J33/00—Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
    • B41J33/003—Ribbon spools
    • B41J33/006—Arrangements to attach the ribbon to the spool
    • 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
    • B41J35/00—Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
    • B41J35/36—Alarms, indicators, or feed disabling devices responsive to ink ribbon breakage or exhaustion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to predetermined lengths of webs
    • B65H26/063—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to predetermined lengths of webs responsive to detection of the trailing edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/415—Unwinding
    • B65H2301/4152—Finishing unwinding process
    • B65H2301/41525—Finishing unwinding process and consuming web roll up to trailing edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/37—Tapes
    • B65H2701/372—Ink ribbons

Definitions

  • the present invention relates to a long medium wound around a core to which an end portion of the long medium is affixed to be used as a medium for a printer.
  • a technology which detects an end or a near end of an ink ribbon for thermal transfer printing by sensing a transparent end portion of the ink ribbon using a photo-sensor is known (see JP-A-6-99651 ).
  • a technology which provides a plurality of sensor marks on an ink ribbon or a printing tape for allowing a photo-sensor to detect an end portion is known as a technology similar to the above tape printer (see JP-A-9-300764 ).
  • a component such as a sensor for detecting the end portion is required.
  • the necessity for adding a portion not for printing such as a light-transmissive film to the end portion of the long medium for allowing detection of the sensor as the method in JP-A-6-99651 and the necessity for providing the marks for the sensor as the method in JP-A-9-300764 complicate the structure of the long medium.
  • the technology which adds the marks for the sensor such a long medium which has patterns on the entire area of the medium is difficult to be used, for example, for preventing malfunction in some cases.
  • An advantage of some aspects of the invention is to provide a long medium for a printer as a medium used for printing while gradually delivering the leading end of the long medium wound around a core which realizes easy and accurate end detection without adding a sensor or the like for end detection to the printer.
  • a long medium for a printer includes: a main body wound around a core to which an end portion of the main body is affixed; and a core stop tape portion which joins the core and the end portion.
  • the bonding force of the core stop tape portion is larger than the drawing force for drawing the main body wound around the core from the core.
  • the bonding force of the core stop tape portion for joining the core and the end portion is larger than the drawing force for drawing the main body wound around the core.
  • a difference in the change of the load is produced between the delivery in the normal operation and the delivery of the end portion in the printer.
  • the printer can relatively easily and securely detect the end of the long medium based on this difference.
  • a component already equipped for monitoring the operation condition of a motor for feeding the long medium is used for detection of the end portion, the necessity for separately providing a component such as a sensor for detecting the end portion can be eliminated.
  • the bonding force of the core stop tape portion is preferably equal to or smaller than a maximum feeding force of a driving mechanism contained in the printer for feeding a leading end portion.
  • the end portion of the long medium is released from the core during delivery of the end portion, the end can be more securely detected by monitoring the increase and decrease of the load.
  • the maximum feeding force preferably is the maximum pulling force of a driving motor for feeding preferably after subtraction of a loss produced by a transmission mechanism for transmitting the maximum pulling force to the leading end portion of the main body.
  • the end can be more securely detected by providing the maximum feeding force considering the loss.
  • the core stop tape portion preferably is an adhesive double coated tape which affixes one of the surfaces of the adhesive double coated tape to the core and affixes the other surface to the end portion to connect the core and the end portion.
  • only the core side surface of the core stop tape portion can be left after release of the end portion from the core, for example, by controlling the core and the bonding force of the adhesive double coated tape as the core stop tape portion.
  • the drawing force necessary for drawing the main body preferably is the sum of a rotational moment around the core and a running load.
  • the bonding force of the core stop tape portion can be raised to a force larger than the drawing force by consideration of the rotational moment and the running load.
  • the end detection can be more securely achieved.
  • the main body preferably is a tape-shaped material having a printing surface subjected to printing.
  • a shortage of the tape-shaped material during printing can be avoided by detection of the end.
  • the length of the end portion in the feeding direction is preferably equal to or larger than the product of the detection time necessary for end detection during delivery of the end portion and the feeding speed of the main body.
  • a long medium for a printer includes: a main body wound around a core to which an end portion of the main body is affixed; and a core stop tape portion which joins the core and the end portion.
  • the length of the end portion in the feeding direction is equal to or larger than the product of the detection time necessary for end detection during delivery of the end portion and the feeding speed of the main body.
  • the length of the end portion in the feeding direction is large enough for securing a detection time necessary for the end detection.
  • the printer can detect the end of the long medium relatively easily and securely.
  • the bonding force of the core stop tape portion preferably is larger than the drawing force for drawing the main body wound around the core from the core.
  • Fig. 1 is a perspective view illustrating the external appearance of a tape printer in which a long medium according to an embodiment of the invention is incorporated.
  • Fig. 2A is a perspective view illustrating the external appearance of the tape printer whose cover is opened.
  • Fig. 2B is a perspective view illustrating the external appearance of a tape cartridge attached to the tape printer.
  • Fig. 3A schematically illustrates a condition of a tape during feeding of the tape.
  • Figs. 3B and 3C show an end portion of the tape and a core stop tape portion.
  • Fig. 4A is a block diagram showing an entire control system of the tape printer.
  • Fig. 4B is a block diagram showing a part of the control system as the part associated with detection of the tape end.
  • Fig. 5A is a graph showing a change of a load during tape feeding.
  • Figs. 5B through 5D schematically illustrate the conditions of the tape end in correspondence with the change of the load.
  • a tape printer in which a long medium is incorporated is hereinafter described with reference to the drawings as a premise of the explanation of a long medium according to an embodiment of the invention.
  • a tape printer 10 has a device case 20 divided into two parts on the upper side and the lower side for constituting the external casing of the tape printer 10.
  • the device case 20 has an upper case 21 as an open/close cover, and a lower case 22 which contains mechanical sections such as a pocket 41 to which a tape cartridge C can be attached and from which the tape cartridge can be detached.
  • a winding tape 50 as a long medium schematically shown in Fig. 3A is contained within the tape cartridge C.
  • a keyboard 33 and a display 34 are provided on the front part and the right rear part, respectively, of the upper surface of the upper case 21.
  • the upper case 21 is closed during use except for the time when the tape cartridge C is attached and detached.
  • the keyboard 33 is an unit through which information such as data and commands is inputted as information transmitted to a microcomputer chip or the like as a control system contained in the lower case 22.
  • the keyboard 33 includes a group of character keys 31 used when inputting text information such as characters, symbols, and numerals, a group of function keys 32 used when specifying various types of operation mode and the like, and other keys arranged on the surface.
  • the display 34 has a display screen 36 which can display n rows x m lines (n and m are appropriate natural numbers) of arbitrary character strings and the like in the horizontal direction and the vertical direction, and can display process results and commands produced by the microcomputer chip and others as the control system contained in the lower case 22. More specifically, the display 34 is used when an user selects or edits character strings and others after inputting data, various commands and requests and the like through the keyboard 33, or visually recognizes the results and others.
  • the lower case 22 has the pocket 41 to which the tape cartridge C can be attached.
  • the tape cartridge C can be attached to and detached from the pocket 41 with the upper case (open/close cover) 21 opened.
  • the tape cartridge C contains a tape T and an ink ribbon R each having a constant width inside a cartridge case 51.
  • the tape cartridge C further has a through hole 53 into which a head unit 42 provided on the pocket 41 is inserted.
  • the tape T is a tape-shaped material as a printing target and constitutes the main body of a winding tape 50 described later in detail as illustrated in Fig. 3A .
  • the tape T has a tape main body Ta and a released paper Tb.
  • a printing surface TH is formed on the front surface of the tape main body Ta, and an adhesive surface TT is formed on the back surface of the tape main body Ta.
  • the adhesive surface TT is covered by the released paper Tb.
  • the tape T and the ink ribbon R overlap with each other while traveling through the through hole 53. Then, only the tape T is discharged to the outside, and the ink ribbon R is wound inside.
  • the head unit 42 provided at an appropriate position of the pocket 41 contains a printing head 42a having a thermal head.
  • the printing head 42a is disposed in such a position as to contact the back surface of the ink ribbon R exposed through the through hole 53 of the tape cartridge C when the tape cartridge C is attached to the pocket 41. In this condition, desired characters and the like can be printed on the printing surface TH on the surface of the tape T by the heating operation of the printing head 42a.
  • a tape outlet port 44 connecting the pocket 41 and the outside of the device is formed on the left side surface of the lower case 22.
  • the tape outlet port 44 faces to a tape cutter 45 for cutting the delivered tape T.
  • a ribbon driving shaft 47 and a roller driving shaft 48 engaging with a driven part of the attached tape cartridge C are provided on the pocket 41.
  • the ink ribbon R and the tape T within the tape cartridge C are delivered by the driving shafts 47 and 48 driven by a built-in feed motor 55 (see Fig. 4B and other figures) as a driving source.
  • the printing head 42a is operated in synchronization with the driving shafts 47 and 48 for performing printing. After completion of printing, the delivery of the tape T is continued until the cutting position determined for the tape T reaches the position of the tape cutter 45.
  • the user attaches the tape cartridge C to the pocket 41, and requests printing by inputting printing information such as desired characters and symbols through the keyboard 33 while checking the input/edition results shown on the display 34.
  • the tape T is drawn from the tape cartridge C, and the desired printing is performed on the tape T by the operation of the printing head 42a.
  • the printed portion is sequentially discharged through the tape outlet port 44 to the outside.
  • the tape feeding is continued until the tape T reaches the position of the tape length including a margin, where the tape T is cut at a predetermined position to be formed into a label.
  • the tape T contained in the tape cartridge C shown in Fig. 2B , and the winding tape 50 as a long medium including the tape T as the main body are now described with reference to Fig. 3A and other figures.
  • the winding tape 50 has a core CR, an adhesive double coated tape BB as a core stop tape portion, and the tape T as the main body.
  • An end portion EP of the tape T is affixed to the core CR by the adhesive double coated tape BB, and wound around the core CR.
  • the tape T and the adhesive double coated tape BB constitute a tape-shaped material having a substantially constant width.
  • One of the surfaces of the adhesive double coated tape BB adheres to the core CR, and the other surface adheres to the end portion EP of the tape T such that the core CR and the end portion EP can be connected by a bonding force of certain strength produced by the adhesive double coated tape BB as the core stop tape portion.
  • the degree of the bonding between the core CR and the end portion EP is determined, and thus a releasing force necessary for releasing the bonding is determined according to the adjustment of the bonding force of the adhesive double coated tape BB.
  • the tape T is drawn by the roller driving shaft 48 of the tape printer 10.
  • a leading end portion TP of the tape T is sandwiched between a platen roller 60 engaging with the roller driving shaft 48 as the driven part of the tape cartridge C and the printing head 42a urged toward the platen roller 60, and is drawn out in accordance with the rotation of the platen roller 60 driven by the roller driving shaft 48.
  • the roller driving shaft 48 and the platen roller 60 driven by the roller driving shaft 48 function as a feeding section for feeding the tape T.
  • a force for feeding the tape T produced by the rotations of the platen roller 60 and the roller driving shaft 48 driven by the driving mechanism is herein referred to as a feeding force Fx.
  • the maximum of the feeding force Fx i.e., a maximum feeding force Fd corresponds to the maximum pulling force of the feed motor 55 as the feeding driving motor (see Fig. 4B and other figures) after subtraction of a loss produced by the platen roller 60, the roller driving shaft 48 and the like as the transmission mechanism for transmitting the maximum pulling force to the leading end portion TP of the tape T.
  • a force necessary for drawing the tape T wound around the core CR out of the core CR during printing in the normal operation is referred to as a drawing force Ft.
  • the drawing force Ft is a force corresponding to the sum of the rotational moment of the winding tape 50 around the core CR and the running load.
  • the tape printer 10 maintains the speed for feeding the tape T at a constant speed VE by controlling the feeding force Fx such that the feeding force Fx becomes substantially equal to the drawing force Ft.
  • the length of the end portion EP of the tape T affixed to the adhesive double coated tape BB is approximately 1/4 of the entire circumference of the core CR, for example. Since each of the end portion EP and the adhesive double coated tape BB has the length L1 as a certain length in the drawing direction of the tape T, a sufficient time is secured for detecting a tape end which corresponds to a state coming to the used up condition of the winding tape 50 within a short period after drawing all the wound tape T and delivering the end portion EP. More specifically, the length L1 is determined as a length equal to or larger than the product of the detection time necessary for detecting the tape end and the speed VE as the feeding speed of the tape T at the time of detection of the tape end.
  • the bonding force produced by the adhesive double coated tape BB to adhere to the end portion EP is set at a force equal to or smaller than the maximum feeding force Fd produced by the driving mechanism equipped within the printer for feeding the leading end portion TP.
  • the end portion EP can be securely released from the adhesive double coated tape BB.
  • the tape printer 10 includes the keyboard 33 and the display 34 functioning as the interface with the user as described above, and further includes a printing section driving circuit 71 for driving the printing head 42a and the feed motor 55 as the feeding section driving motor, an encoder disk 81 fixed to a rotation shaft of the feed motor 55 to detect the rotation condition of the rotation shaft, a photo-sensor 82 which detects ON/OFF timing corresponding to the rotation of the encoder disk 81 and transmits the detection result to a motor driver 71a of the printing section driving circuit 71, a cutting section driving circuit 72 which allows the tape cutter 45 to perform cutting, a memory unit 73 which stores data, calculation results and the like, and a control unit 77 which controls and operates the respective circuits in appropriate manners.
  • a printing section driving circuit 71 for driving the printing head 42a and the feed motor 55 as the feeding section driving motor
  • an encoder disk 81 fixed to a rotation shaft of the feed motor 55 to detect the rotation condition of the rotation shaft
  • a photo-sensor 82 which detects ON/OFF timing
  • the printing head 42a and the printing section driving circuit 71 function as a printing section for performing printing on the tape T.
  • the encoder disk 81 and the photo sensor 82 function as an encoder 80 for detecting the condition of the rotation speed of the feed motor 55.
  • the motor driver 71a of the printing section driving circuit 71 controls the feed motor 55 based on signals received from the photo-sensor 82 such that the speed for feeding the tape T as the printing target can be maintained at the constant speed VE (see Fig. 3A and other figures).
  • the motor driver 71a performs feedback control of the feed motor 55 as a DC motor by using the encoder 80.
  • the control unit 77 includes a microcomputer chip and others.
  • the memory unit 73 includes an IC having ROM and RAM.
  • the control unit 77 operates according to a control program contained in the ROM of the memory unit 73 to control the overall operation of the tape printer 10. For example, the control unit 77 receives inputs of various commands, various detection signals and the like from the keyboard 33 and others, processes various data and the like received from the RAM of the memory unit 73, and outputs control signals to the display 34, the printing section driving circuit 71, the cutting section driving circuit 72 and others to allow the display screen 36 to display necessary indications and allow the printing head 42a to perform printing on the tape T in a predetermined printing condition by controlling the printing head 42a.
  • the control unit 77 particularly obtains information concerning the feedback control, more specifically, information about the load on the feed motor 55 and the like from the motor driver 71a.
  • the control unit 77 has a tape end detection device 77a for determining whether the present condition is in a tape end condition based on this information.
  • Fig. 4B shows a part of the whole control system shown in the block diagram in Fig. 4A as the part of the control system associated with the monitoring of the feed motor 55 and the detection of the tape end corresponding to the used up condition of the tape T.
  • the motor driver 71a included in the circuit part in Fig. 4B provides feedback control based on the information received from the encoder 80. More specifically, the encoder disk 81 axially rotates with the rotation shaft of the feed motor 55, and the photo-sensor 82 detects the rotation of the encoder disk 81 and outputs information on the rotation speed (number of revolutions) of the feed motor 55 to the motor driver 71a. The motor driver 71a performs calculation based on the detection information obtained from the photo-sensor 82, and outputs a PWM waveform control signal corresponding to the calculation result.
  • the duty ratio of the PWM waveform i.e., the proportion of the power source ON period is varied such that the deviation can be corrected. More specifically, when the rotation speed decreases, the duty ratio of the PWM waveform is raised by the amount corresponding to the decrease. When the rotation speed increases, the duty ratio of the PWM waveform is lowered by the amount corresponding to the increase.
  • the motor driver 71a determines a necessary standard duty ratio of the PWM waveform based on the detection information outputted from the photo-sensor 82 and the conditions such as the specification of the feed motor 55 and the resistance of the feeding section, and drives the feed motor 55 while changing the standard duty ratio such that increase and decrease in the rotation speed is not produced so as to keep the number of revolutions of the feed motor 55 constant. That is, the motor driver 71a controls the load condition of the feed motor 55 which is the drive motor of the feeding section such that the feeding force Fx shown in Fig. 3A becomes substantially equal to the drawing force Ft, thereby keeping the rotation speed of the feed motor 55, i.e., the speed VE for feeding the tape T substantially constant.
  • the motor driver 71a and the encoder 80 can be considered as components functioning as a motor monitoring device 90 which monitors the load condition of the feed motor 55.
  • the tape end detection device 77a of the control unit 77 receives the information about the rotation of the feed motor 55 as the monitoring result from the motor monitoring device 90. More specifically, the tape end detection device 77a sequentially reads the duty ratio of the PWM waveform obtained by the motor driver 71a as the load on the feed motor 55, and determines whether the tape T is in the tape end condition based on this information. When it is determined that the tape T is in the tape end condition, the control unit 77 starts a process for displaying the tape end. In this case, the change of the duty ratio corresponds to the change of the feeding force Fx.
  • the level of the load on the feed motor 55 i.e., the level of the feeding force Fx detected by the tape end detection device 77a based on the monitoring result obtained by the motor driver 71a changes in the manner shown in Fig. 5A .
  • the horizontal axis in Fig. 5A indicates the running time or the running length of the tape T.
  • the vertical axis indicates the duty ratio which corresponds to the load imposed on the motor in this embodiment. In this period, the condition of the winding tape 50 changes with steps as illustrated in Figs. 5B through 5D .
  • the end portion EP of the tape T wound around the core CR in the winding tape 50 can be gradually released from the adhesive double coated tape BB by setting a bonding force Fr of the adhesive double coated tape BB equal to or smaller than the maximum feeding force Fd.
  • the load increases to a level sufficient for separating the end portion EP from the adhesive double coated tape BB, and finally achieves complete release of the end portion EP.
  • the change of the load i.e., the change of the feeding force Fx during this period is shown in Fig. 5A .
  • the bonding force of the surface of the adhesive double coated tape BB adhering to the core CR and the bonding force of the surface of the adhesive double coated tape BB adhering to the end portion EP are controlled such that only the core CR and the adhesive double coated tape BB are finally left.
  • almost all part of the tape T including the end portion EP released from the core CR can be used.
  • Fig. 5B illustrates a condition in which an effect produced by the bonding force Fr of the adhesive double coated tape BB for connecting the tape T and the core CR starts to be recognized on the feeding force Fx.
  • This condition corresponds to a condition in a term T2 from a point a to a point b as time points in Fig. 5A .
  • the load is a substantially constant load Da.
  • a releasing force Fp equivalent to the bonding force Fr of the adhesive double coated tape BB as a force necessary for releasing the tape T from the adhesive double coated tape BB is required as the feeding force Fx.
  • the feeding force Fx increases to such a level that the releasing force Fp becomes equivalent to the bonding force Fr. That is, during the term T2, the motor driver 71a detects a rapid rise of the load within a short period.
  • Fig. 5C shows a condition in which the end portion EP of the tape T is being released from the adhesive double coated tape BB.
  • This condition corresponds to a term T3 from the point b to a point c in Fig. 5A .
  • the feeding force Fx is kept high for continuing the release of the end portion EP, and thus the motor driver 71a detects the state in which a high load Db is maintained.
  • the feeding force Fx in this condition is chiefly constituted by the releasing force Fp for releasing the tape T from the adhesive double coated tape BB.
  • the level of the releasing force Fp is equivalent to the level of the bonding force Fr between the tape T and the adhesive double coated tape BB.
  • the level of the bonding force Fr is controlled in such a manner as to become larger than the drawing force Ft necessary for drawing the tape T out during the normal operation.
  • Fig. 5D shows a tape end condition in which the end portion EP of the tape T starts to be delivered after released from the adhesive double coated tape BB and separated from the core CR.
  • This condition corresponds to a condition in a term T4 after the point c in Fig. 5A .
  • the motor driver 71a detects a load decrease at the point c, that is, a load Dc after the point c lower than the load Da before the point a as the normal load.
  • the feeding force Fx becomes smaller than the drawing force Ft in the normal condition. Accordingly, the change of the load can be securely produced, allowing the tape end to be detected by the tape printer 10.
  • the tape end can be detected based on the change of the feeding force Fx detected as the change of the load. More specifically, the bonding force Fr of the adhesive double coated tape BB for connecting the core CR and the end portion EP is larger than the drawing force Ft necessary for drawing the tape T out. In this case, a difference in the change of the load is produced between the delivery in the normal operation and the delivery of the end portion EP in the tape printer 10. Thus, the tape printer 10 can relatively easily and securely detect the end of the winding tape 50 based on this difference.
  • the motor monitoring device 90 as the component already equipped for monitoring the operation condition of the feed motor 55 for feeding the tape T is used for detecting the end portion EP, the necessity for separately providing a component such as a sensor for detecting the end portion EP is eliminated. Also, the necessity for forming a transparent material or the like used for end detection on the end portion EP is eliminated, allowing almost the entire part of the tape T to be used as the printing target.
  • the bonding force Fr of the adhesive double coated tape BB, the length L1 of the end portion EP and the like may be set at appropriate values.
  • the length L1 may be arbitrarily determined as long as the length L1 lies within the range of at least the length corresponding to 1 pulse necessary for recognizing the change of the load by the motor monitoring device 90, and at most one round of the core CR, that is, the entire circumference of the core CR.
  • the long medium as the winding tape 50 having the tape T as the main body has been discussed.
  • the end of the ink ribbon R can be detected by using the main body of the long medium having the same structure as the ink ribbon R within the cartridge C.
  • the change of the load is checked for tape end detection by monitoring the change of the duty ratio.
  • the tape end can be detected by monitoring the change of the effective voltage, the change of the current and the power consumption or others.

Landscapes

  • Printers Characterized By Their Purpose (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Replacement Of Web Rolls (AREA)
EP11155752A 2010-03-30 2011-02-24 Support de grande taille pour imprimante Withdrawn EP2371751A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010077503A JP2011207590A (ja) 2010-03-30 2010-03-30 印刷装置用の長尺媒体

Publications (2)

Publication Number Publication Date
EP2371751A2 true EP2371751A2 (fr) 2011-10-05
EP2371751A3 EP2371751A3 (fr) 2013-03-20

Family

ID=44088014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11155752A Withdrawn EP2371751A3 (fr) 2010-03-30 2011-02-24 Support de grande taille pour imprimante

Country Status (4)

Country Link
US (1) US20110240784A1 (fr)
EP (1) EP2371751A3 (fr)
JP (1) JP2011207590A (fr)
CN (1) CN102218948B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110167858A (zh) * 2017-09-29 2019-08-23 帕茨施斯佩齐亚尔德拉特公司 用于在卷起和/或开卷时最佳利用卷绕物料的方法和装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6229893B2 (ja) * 2014-03-04 2017-11-15 ブラザー工業株式会社 印刷装置
JP6498997B2 (ja) * 2015-04-09 2019-04-10 株式会社タカゾノテクノロジー シート材切れ検知機構、ロール体、及び、ロール体の製造方法
JP2016199350A (ja) * 2015-04-09 2016-12-01 株式会社タカゾノテクノロジー シート材切れ検知機構、ロール体、及び、ロール体の製造方法
JP6530950B2 (ja) * 2015-04-09 2019-06-12 株式会社タカゾノテクノロジー シート材切れ検知機構、ロール体、及び、ロール体の製造方法
JP6729177B2 (ja) * 2016-08-25 2020-07-22 セイコーエプソン株式会社 テープ印刷装置
JP7031134B2 (ja) * 2017-03-28 2022-03-08 セイコーエプソン株式会社 印刷装置、及び、印刷装置の制御方法

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US20110240784A1 (en) 2011-10-06
CN102218948B (zh) 2013-07-10
EP2371751A3 (fr) 2013-03-20
JP2011207590A (ja) 2011-10-20

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