EP0363962A2 - Dispositif et procédé d'enregistrement par transfert de chaleur - Google Patents

Dispositif et procédé d'enregistrement par transfert de chaleur Download PDF

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Publication number
EP0363962A2
EP0363962A2 EP89118986A EP89118986A EP0363962A2 EP 0363962 A2 EP0363962 A2 EP 0363962A2 EP 89118986 A EP89118986 A EP 89118986A EP 89118986 A EP89118986 A EP 89118986A EP 0363962 A2 EP0363962 A2 EP 0363962A2
Authority
EP
European Patent Office
Prior art keywords
recording
ink sheet
ink
recording medium
conveyance
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.)
Granted
Application number
EP89118986A
Other languages
German (de)
English (en)
Other versions
EP0363962A3 (en
EP0363962B1 (fr
Inventor
Hisao Terajima
Satoshi Wada
Takehiro Yoshida
Takeshi Ono
Makoto Kobayashi
Minoru Yokoyama
Takashi Awai
Akihiro Tomoda
Yasushi Ishida
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Publication of EP0363962A2 publication Critical patent/EP0363962A2/fr
Publication of EP0363962A3 publication Critical patent/EP0363962A3/en
Application granted granted Critical
Publication of EP0363962B1 publication Critical patent/EP0363962B1/fr
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
    • B41J17/00—Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper
    • B41J17/36—Alarms, indicators, or feed-disabling devices responsible to material breakage or exhaustion

Definitions

  • This invention relates to a heat transfer recording apparatus and a facsimile apparatus for transferring the ink of an ink sheet to a recording medium to thereby record images on the recording medium.
  • heat transfer recording apparatus covers, for example, a facsimile apparatus, an electronic typewriter, a copying apparatus, a printer apparatus, etc.
  • a heat transfer printer uses an ink sheet having heat-meltable (or heat-sublimating) ink applied to a base film, and selectively heats the ink sheet by a thermal head correspondingly to an image signal and transfers the melted (or sublimated) ink to recording paper to thereby accomplish image recording.
  • this ink sheet is such that the ink is completely transferred to the recording paper by one time of image recording (so-called one-time sheet) and therefore, after the termination of the recording of one character or one line, it has been necessary to convey the ink sheet by an amount corre­sponding to the length of the record, and reliably bring the unused portion of the ink sheet to a position to be recorded next. This has increased the quantity of ink sheets used, and has led to the tendency that as compared with an ordinary thermosensitive printer for effecting recording on thermosensitive paper, the running cost of the heat transfer printer becomes high.
  • the ink sheet is conveyed by 1/n of the length of conveyance of the recording paper each time the recording paper is conveyed. This may result in the waste of the ink sheet during the recording of image data having many blank portions, such as facsimile images.
  • the embodiment which will now be described with respect to a specific example is a heat transfer recording apparatus which acts on an ink sheet remaining stopped and effects recording of images on a recording medium and in which the then number of times of image recording is counted to detect whether this number of times of image recording has reached a predetermined number of times and when in this manner, it is detected that the number of times of recording has reached the predetermined number of times with the ink sheet stopped during the recording of an image on the recording medium by recording means, the ink sheet is conveyed by a distance corresponding to the length of image recording.
  • the embodiment is also a facsimile apparatus which acts on an ink sheet remaining stopped and effects recording of images on a recording medium on the basis of an image signal from image input means for inputting the image of an original or from transmitter-­receiver means for transmitting and receiving image signals and in which the then number of times of image recording is counted to detect whether the number of times of image recording has reached a predetermined number of times and when in this manner, it is detected that the number of times of recording has reached the predetermined number of times with the ink sheet stopped during the recording of an image on the recording medium, the ink sheet is conveyed by a distance corresponding to the length of image recording.
  • Figures 1 to 4 show an example in which a heat transfer printer using an embodiment of the present invention is applied to a facsimile apparatus.
  • Figure 1 shows the connections of a control unit to a thermal head and to a data detecting circuit for effecting the zero detection of data
  • Figure 2 is a block diagram schematically showing the construction of the facsimile apparatus
  • Figure 3A is a side cross-sectional view of the facsimile apparatus
  • Figure 3B is a pictorial perspective view of the facsimile apparatus.
  • the reference numeral 100 designates a reading unit for photoelectrically reading an original and outputting it as a digital image signal to a control unit 101, and the reading unit 100 is provided with an original conveying motor a CCD image sensor, etc.
  • the construction of the control unit 101 will now be described.
  • the reference numeral 110 denotes a line memory storing therein the image data of each line of the image data. During the transmission or copying of an original, the image data corresponding to one line from the reading unit 100 is stored in the line memory 110, and during the reception of the image data, data corresponding to one line of the decoded received image data is stored in the line memory 110.
  • the stored data is output to a recording unit, whereby image formation is effected.
  • the reference numeral 111 designates a coding/decoding unit for coding the transmitted image information as by MH coding and decoding the received coded image data and converting it into image data.
  • the reference numeral 112 denotes a buffer memory storing the transmitted or received coded image data therein.
  • the reference numeral 102 designates a recording unit provided with a thermal line head and effecting image recording on recording paper by the heat transfer recording method. The construction of this unit will be described in detail later with reference to Figures 1 and 3.
  • the reference numeral 103 denotes an operation unit including keys for indicating various functions such as starting of transmission, a telephone number input key, etc., and the reference character 103a designates a switch for indicating the kind of the ink sheet 14 used. When it is ON, the switch 103a indicates that an ink sheet for multiprint is loaded, and when it is OFF, the switch 103a indicates that an ordinary one-time ink sheet 14 is loaded.
  • the reference numeral 104 denotes an indicating unit for indicating various functions usually provided in the operation unit 103 and the state of the apparatus.
  • the reference numeral 105 designates a voltage source unit for supplying electric power to the entire apparatus.
  • the reference numeral 106 denotes a modem (modemodulator), the reference numeral 107 designates a net control unit (NCU), and the reference numeral 108 denotes a telephone set.
  • the reference numeral 10 designates a roll of paper comprising recording paper 11 which is plain paper wound in the form of a roll on a core 10a.
  • This roll of paper 10 is rotatably contained in the apparatus so that the recording paper 11 can be supplied to a thermal head 13 by the rotation of a platen roller 12 in the direction of arrow.
  • Denoted by 10b is a roll-of-­paper loading portion in which the roll of paper 10 is removably loaded.
  • the platen roller 12 conveys the recording paper 11 in the direction of arrow b and also presses the ink sheet 14 and the recording paper 11 between it and the heat generating member 132 of the thermal head 13.
  • the recording paper 11 on which image recording has been effected by the heat generation of the thermal head 13 is conveyed toward discharge rollers 16a and 16b by further rotation of the platen roller 12, and when image recording by one page is terminated, the recording paper is cut into a page unit by the meshing engagement between cutters 15a and 15b and is discharged.
  • the reference numeral 17 designates an ink sheet supply roll on which the ink sheet 14 is wound
  • the reference numeral 18 denotes an ink sheet take-up roll driven by an ink sheet conveying motor which will be described later to take up the ink sheet 14 in the direction of arrow a.
  • the ink sheet supply roll 17 and the ink sheet take-up roll 18 are removably loaded in an ink sheet loading portion 70 within the apparatus body.
  • the reference numeral 19 designates a sensor for detecting the remaining amount of the ink sheet 14 and detecting the conveyance velocity of the ink sheet 14.
  • the reference numeral 20 denotes an ink sheet sensor for detecting the presence or absence of the ink sheet 14, and the reference numeral 21 designates a spring for urging the thermal head 13 against the platen roller 12 with the recording paper 11 and the ink sheet 14 interposed therebetween.
  • the reference numeral 22 denotes a recording paper sensor for detecting the presence or absence of the recording paper.
  • the reference numeral 72 designates a roller for guiding the ink sheet 14.
  • the reference numeral 30 denotes a light source for irradiating an original 32, and the light reflected by the original 32 is input to a CCD sensor 31 through an optical system (mirrors 50 and 51 and a lens 52) and is converted into an electrical signal.
  • the original 32 is conveyed correspondingly to the reading speed for the original 32 by conveying rollers 53, 54, 55 and 56 driven by an original conveying motor, not shown.
  • the reference numeral 57 designates an original supporting table, and a plurality of originals 32 supported on the original supporting table 57 are separated one by one by the cooperation between the conveying roller 54 and a press-separating piece 58 while being guided by a slider 57a, and are conveyed to the reading unit 100 and are discharged onto a tray 77 after they are read.
  • the reference numeral 41 denotes a control base plate constituting the essential portion of the control unit 101, and various control signals are output from this control base plate 41 to the various portions of the apparatus.
  • the reference numeral 106 designates a modem base plate unit, and the reference numeral 107 denotes an NCU base plate unit.
  • Figure 4 shows the details of a conveying mechanism for the ink sheet 14 and the recording paper 11.
  • the reference numeral 24 designates a recording paper conveying motor for rotatively driving the platen roller 12 to thereby convey the recording paper 11 in the direction of arrow b opposite to the direction of arrow a
  • the reference numeral 25 denotes an ink sheet conveying motor for conveying the ink sheet 14 in the direction of arrow a
  • the reference numerals 26 and 27 designate transmission gears for transmitting the rotation of the recording paper conveying motor 24 to the platen roller 12
  • the reference numerals 28 and 29 denote transmission gears for transmitting the rotation of the ink sheet conveying motor 25 to the take-up roll 18.
  • Figure 1 shows the connections of the control unit 101 in the facsimile apparatus of this embodiment to the data detecting circuit 33 and the thermal head 13 of the recording unit 102, and in Figure 1, portions common to those in the other figures are designated by similar reference numerals.
  • the thermal head 13 is a line head.
  • This thermal head 13 is provided with a shift register 130 for inputting serial recording data 41 for one line from the control unit 101 in synchronism with a clock signal 43, a latch circuit 131 for latching the data of the shift register 130 by a latch signal 44, and p heat generating elements 132 comprising a heat generating resistance member for one line.
  • the heat generating resistance member 132 is divided into m blocks designated by 132-l to 132-m and driven.
  • the reference numeral 133 designates a temperature sensor mounted on the thermal head 13 for detecting the temperature of the thermal head 13.
  • the output signal 42 of this temperature sensor 133 is A/D-converted in the control unit 101 and input to the CPU 113.
  • the CPU 113 detects the temperature of the thermal head 13 and changes the pulse width of a strobe signal 47 or changes the driving voltage of the thermal head 13, correspondingly to the detected temperature, thereby changing the applied energy to the thermal head 13 in conformity with the characteristic (the kind) of the ink sheet 14.
  • the characteristic (the kind) of the ink sheet 14 (for example, whether the ink sheet 14 is an ordinary one-time ink sheet or an ink sheet for multiprint capable of many times of recording) is indicated by the aforementioned switch 103a of the operation unit 103.
  • the kind or characteristic of the ink sheet 14 may be automatically discriminated by a mark printed on the ink sheet 14, or a mark, a cut-away or a projection formed on the cassette or cartridge of the ink sheet.
  • the reference numeral 46 designates a driving circuit for receiving as an input a driving signal for the thermal head 13 from the control unit 101 and outputting the strobe signal 47 for driving the thermal head 13 in each block unit.
  • This driving circuit 46 can change the voltage supplied to a voltage source line 45 for supplying an electric current to the heat generating elements 132 of the thermal head 13, by the instruction from the control unit 101, thereby changing the applied energy to the thermal head 13.
  • the reference numeral 33 denotes a data detecting circuit, the details of which are shown in Figure 5.
  • the data detecting circuit 33 receives as inputs serial recording data 41 and a shift clock 43 synchronized therewith, and further, number-of-times data and a latch signal 34 which will be described later, and detects the number of times of the data recorded on the ink sheet 14.
  • the data detecting circuit 33 outputs a conveyance instructing signal 37 to the control unit 101.
  • Figure 5 is a block diagram showing the construction of the data detecting circuit 33 in the present embodiment, and in Figure 5, portions common to those in Figure 1 are designated by similar reference numerals.
  • the reference numerals 60-l to 60-p designate latch and counting circuits for inputting and latching the serial data 41 output to the thermal head 13 and also counting the number of times of the outputting of each dot.
  • These latch and counting circuits 60-l to 60-p are serially connected together and are similar in construction to one another.
  • the value of this p is equal to the number of the heat generating elements of the heat generating resistance member 132 of the thermal head 13 (the total number of dots). That is, the latch and counting circuits 60 correspond to the respective heat generating elements.
  • 60-l there is typically shown the construction of the latch and counting circuits 60-l to 60-p. That construction will be described hereinafter.
  • the reference numerals 61 and 62 designate D type flip-flops.
  • the flip-flop 61 latches the serial data 41 sent from the control unit 101, in synchronism with a shift clock (CLK) 43.
  • CLK shift clock
  • the output of the flip-flop 61 is put out to the flip-flop 62 and also is connected to the data input terminal of the next stage latch and counting circuit. Accordingly, the pulses of p clocks 43 are input with the serial data 41, the image recording data for one line are stored in the flip-flops 61 of the latch and counting circuits 60-l to 60-p.
  • latch signal (LATCH) 34 When a latch signal (LATCH) 34 is then input, the data latched in the flip-flops 61 are stored in the flip-flops 62.
  • This latch signal 34 may be common to a latch signal 44 output to the latch circuit 131 of the thermal head 13.
  • the reference numeral 63 denotes a down counter, the counted value by which is preset by the counter data 35 and set signal 36 from the control unit 101 and which counts down each time a clock signal from an AND circuit 64 is input. If the latch signal 34 is input when the data of the flip-­flop 61 is "1", the AND circuit 64 outputs a clock signal to the counter 63. Thus, the counter 63 is decremented by 1 each time the data "1" is latched in the flip-flop 62.
  • a signal in which the recording data is "1" (a signal for electrically energizing the heat generating resistance member 132) is input to the corresponding latch and counting circuit five times, a zero signal 65 (65-i) indicating that the counter 63 has become “0" is output at a high level.
  • a conveyance instruction signal 37 which is the output signal of an OR circuit 67 assuming a high level.
  • At least one of the plurality of heat generating elements 132 of the thermal head 13 is electrically energized five times and image recording is effected, it means that the ink sheet 14 has been recorded five times at the same position and therefore, the ink sheet 14 is conveyed by a predetermined amount, e.g. an amount corresponding to one line.
  • Figure 6 is a flow chart showing the image recording process for one page in the facsimile apparatus of the present embodiment, and a control program for executing this process is stored in the ROM 114 of the control unit 101.
  • This process is started by the image data for one line to be recorded being stored in the line memory 110 to thereby bring about a state in which the image recording operation can be started.
  • the number of times n of multiprint is set in the counter 63 of the latch and counting circuit 60. This is accomplished by outputting "n" to the counter data 35 and outputting a set signal 36.
  • the recording data 41 for one line is serially output to the shift register 130 in synchronism with the shift clock 43.
  • latch signals 44 and 34 are output and the recording data for one line is stored in the latch circuit 131 and also the data is latched in the next stage flip-flop 62 of the latch and counting circuit 60.
  • These latch signals 34 and 44 may be made common to each other.
  • step 54 whether a conveyance instruction signal 37 is at a high level is examined, and if the signal 37 is at a low level, advance is made to step S7.
  • the conveyance instruction signal 37 assumes a high level, it shows that the portion of the ink sheet 14 which has been used for image recording n times is present in the portion of the ink sheet 14 which is currently at the recording position and therefore, at step S5, the ink sheet conveying motor 25 is driven to convey the ink sheet 14 by an amount corresponding to one line in the direction of arrow a ( Figure 3).
  • n is again set in the counter 63 and advance is made to step S7.
  • the recording paper conveying motor 24 is driven to convey the recording paper 11 by an amount corresponding to one line in the direction of arrow b.
  • This amount corresponding to one line is a length corresponding to the length of one dot recorded by the thermal head 13.
  • step 58 each block of the heat generating element 132 of the thermal head 13 is electrically energized.
  • step S9 whether all of the blocks of the heat generating resistance member 132 have been electrically energized is examined, and when all of the blocks of the heat generating element 132 are electrically energized and image recording for one line is terminated, advance is made to step S10, where whether image recording for one page has been terminated is examined. If image recording for one page is not terminated, advance is made to step S11, where the recording data for the next line is transported to the thermal head 13 and return is made to step S3.
  • step S10 When image recording for one page is terminated at the step S10, advance is made to step S12, where the recording paper 11 is conveyed by a predetermined amount toward the discharge rollers 16a and 16b. Then, the cutters 15a and 15b are driven into meshing engagement with each other to thereby cut the recording paper 11 in page unit. Subsequently, the recording paper 11 is returned by a distance corresponding to the spacing between the thermal head 13 and the cutters 15, whereupon the image recording process for one page is terminated.
  • the ink sheet 14 may be conveyed in the same manner as the recording paper 11 or may remain stopped.
  • Figure 7 shows the states of the recording paper 11 and the ink sheet 14 when image recording is effected in this embodiment.
  • the recording paper 11 and the ink sheet 14 are nipped between the platen roller 12 and the thermal head 13, and the thermal head 13 is urged against the platen roller 12 with a predetermined pressure by the spring 21.
  • the recording paper 11 is conveyed at a velocity V P in the direction of arrow b by the rotation of the platen roller 12.
  • the ink sheet 14 is conveyed in the direction of arrow a by the rotation of the ink sheet conveying motor 25.
  • the heat generating resistance member 132 of the thermal head 13 When the heat generating resistance member 132 of the thermal head 13 is electrically energized and heated by the voltage source unit 105, the portion of the ink sheet 14 which is indicated by hatching 81 is heated.
  • the reference character 14a designates the base film of the ink sheet 14, and the reference character 14b denotes the ink layer of the ink sheet 14.
  • the ink of the ink layer 81 heated by the heat generating resistance member 132 being electrically energized is melted (sublimated), and the portion thereof which is designated by 82 is transferred to the recording paper 11. This transferred ink layer portion 82 corresponds to approximately 1/n of the ink layer indicated by 81.
  • Figure 8 is a cross-sectional view of the ink sheet used in the multiprint of the present embodiment, and the ink sheet is constructed of four layers.
  • a second layer is a base film which provides a support for the ink sheet 14.
  • aromatic polyamide film or condenser paper having a high heat resistance is advantageous, but conventional polyester film will also stand use.
  • the smallest possible thickness of these is advantageous in respect of the quality of printing from the viewpoint of the role as a medium, and a thickness of 3 - 8 ⁇ m is desirable from the viewpoint of strength.
  • a third layer is an ink layer containing an amount of ink capable of being transferred n times to the recording paper (recording sheet).
  • the chief components of this layer are resin such as EVA as an adhesive agent, carbon black or nigrosive dye for coloring, and carnauba wax or paraffin wax as a binding material, and these materials are combined so as to stand n times of use in the same portion.
  • the amount of application of these materials is desirably 4 - 8 g/m2, but can be arbitrarily selected because sensitivity or concentration differs depending on the amount of application.
  • a fourth layer is a top coating layer for preventing the ink of the third layer from being pressure-transferred to the recording paper in the portion thereof which is not to be printed, and is composed of transparent wax or the like. Thus, it is only the transparent fourth layer that is pressure-­transferred, and the ground of the recording paper can be prevented from being stained.
  • a first layer is a heat resisting coat layer for protecting the base film which is the second layer from the heat of the thermal head 13. This is suitable for multiprint in which heat energy for n lines may be applied to the same portion (when black information is continuous), but whether it is to be used or not to be used can be suitably chosen. Also, it is effective for a base film of relatively low heat resistance such as a polyester film.
  • the ink sheet 14 may comprise, for example, a base layer and a porous ink retaining layer provided on one side of the base layer and containing ink therein, or may comprise a base film and a heat resisting ink layer having a fine porous net-like structure and provided on the base film, the ink layer containing ink therein.
  • the material of the base film may be, for example, a film comprising polyamide, polyethylene, polyester, polyvinyl chloride, triacetyl cellulose, nylon or the like, or paper.
  • the heat resisting coat layer is not always necessary, but the material thereof may be, for example, silicone resin, epoxy resin, fluorine resin, etholocellulose or the like.
  • an ink sheet having heat-sublimating ink comprising a base material formed of polyethylene terephthalate, polyethylene naphthalate, aromatic polyamide film or the like, and a coloring material layer containing spacer particles and a dye formed by guanamin resin and fluorine resin, said coloring material layer being provided on said base material.
  • the heating system is not limited to the aforedescribed thermal head system using a thermal head, but use may be made, for example, of the electrical energizing system or the laser transfer system.
  • the recording medium is not limited to the recording paper, but for example, cloth, a plastic sheet or the like may be mentioned if they are capable of ink transfer.
  • the ink sheet is not limited to the roll construction shown in the embodiment, but may be, for example, of the so-called ink sheet cassette type in which ink sheets are contained in a housing removably mountable with respect to the recording apparatus body and this housing is bodily mounted and dismounted with respect to the recording apparatus body.
  • this embodiment has been described with respect to a case where image recording is effected with the recording paper and the ink sheet being conveyed in opposite directions, whereas this is not restrictive, but recording may be effected with the recording paper and the ink sheet being conveyed in the same direction.
  • the ink sheet is conveyed only when the frequency of use of the ink sheet has reached a predetermined frequency and therefore, the waste of the ink sheet can be eliminated and the ink sheet can be efficiently used.
  • the number of times of image recording is counted and when the frequency of use of the ink sheet exceeds a predetermined value, the conveyance of the ink sheet is effected, whereby the amount of the ink sheet used can be economized.

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EP19890118986 1988-10-12 1989-10-12 Dispositif et procédé d'enregistrement par transfert de chaleur Expired - Lifetime EP0363962B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP25484188A JPH02102087A (ja) 1988-10-12 1988-10-12 熱転写記録装置及び該装置を用いたフアクシミリ装置
JP254841/88 1988-10-12

Publications (3)

Publication Number Publication Date
EP0363962A2 true EP0363962A2 (fr) 1990-04-18
EP0363962A3 EP0363962A3 (en) 1990-11-07
EP0363962B1 EP0363962B1 (fr) 1994-12-28

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EP19890118986 Expired - Lifetime EP0363962B1 (fr) 1988-10-12 1989-10-12 Dispositif et procédé d'enregistrement par transfert de chaleur

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EP (1) EP0363962B1 (fr)
JP (1) JPH02102087A (fr)
DE (1) DE68920254T2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5281977A (en) * 1991-02-18 1994-01-25 Canon Kabushiki Kaisha Thermal transfer recording apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587377A (ja) * 1981-07-08 1983-01-17 Toshiba Corp 感熱転写型プリンタ
JPS58201686A (ja) * 1982-05-20 1983-11-24 Ricoh Co Ltd 熱転写式プリンタ
JPS6048379A (ja) * 1983-08-26 1985-03-16 Matsushita Graphic Commun Syst Inc 感熱転写記録装置
JPS6048388A (ja) * 1983-08-26 1985-03-16 Matsushita Graphic Commun Syst Inc 感熱転写媒体の搬送装置
JPS60105557A (ja) * 1983-11-14 1985-06-11 Nec Corp 感熱記録制御回路
JPS62140857A (ja) * 1985-12-16 1987-06-24 Matsushita Electric Ind Co Ltd サ−マルプリンタ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587377A (ja) * 1981-07-08 1983-01-17 Toshiba Corp 感熱転写型プリンタ
JPS58201686A (ja) * 1982-05-20 1983-11-24 Ricoh Co Ltd 熱転写式プリンタ
JPS6048379A (ja) * 1983-08-26 1985-03-16 Matsushita Graphic Commun Syst Inc 感熱転写記録装置
JPS6048388A (ja) * 1983-08-26 1985-03-16 Matsushita Graphic Commun Syst Inc 感熱転写媒体の搬送装置
JPS60105557A (ja) * 1983-11-14 1985-06-11 Nec Corp 感熱記録制御回路
JPS62140857A (ja) * 1985-12-16 1987-06-24 Matsushita Electric Ind Co Ltd サ−マルプリンタ

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Title
PATENT ABSTRACTS OF JAPAN, vol. 11, no. 364 (M-646)[2811], 27th November 1987; & JP-A-62 140 857 (MATSUSHITA ELECTRIC IND. CO., LTD) 24-06-1987 *
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 81 (M-205)[1226], 5th April 1983; & JP-A-58 007 377 (TOKYO SHIBAURA DENKI K.K.) 17-01-1983 *
PATENT ABSTRACTS OF JAPAN, vol. 8, no. 47 (M-280)[1484], 2nd March 1984; & JP-A-58 201 686 (RICOH K.K.) 24-11-1983 *
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 179 (M-399)[1902], 24th July 1985; & JP-A-60 048 379 (MATSUSHITA DENSOU K.k.) 16-03-1985 *
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 179 (M-399)[1902], 24th July 1985; & JP-A-60 048 388 (MATSUSHITA DENSOU K.K.) 16-03-1985 *
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 256 (M-421)[1979], 15th October 1985; & JP-A-60 105 557 (NIPPON DENKI K.K.) 11-06-1985 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5281977A (en) * 1991-02-18 1994-01-25 Canon Kabushiki Kaisha Thermal transfer recording apparatus

Also Published As

Publication number Publication date
DE68920254D1 (de) 1995-02-09
JPH02102087A (ja) 1990-04-13
DE68920254T2 (de) 1995-06-01
EP0363962A3 (en) 1990-11-07
EP0363962B1 (fr) 1994-12-28

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