EP0076892A2 - Element ruban laminé pour impression thermique, dispositif imprimeur par la chaleur et procédé de correction par enlèvement de matière - Google Patents
Element ruban laminé pour impression thermique, dispositif imprimeur par la chaleur et procédé de correction par enlèvement de matière Download PDFInfo
- Publication number
- EP0076892A2 EP0076892A2 EP82105763A EP82105763A EP0076892A2 EP 0076892 A2 EP0076892 A2 EP 0076892A2 EP 82105763 A EP82105763 A EP 82105763A EP 82105763 A EP82105763 A EP 82105763A EP 0076892 A2 EP0076892 A2 EP 0076892A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- laminated element
- correction
- lift
- character
- 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
Links
- 238000012937 correction Methods 0.000 title claims abstract description 48
- 238000007651 thermal printing Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims description 9
- 230000008569 process Effects 0.000 title claims description 7
- 238000007639 printing Methods 0.000 claims abstract description 64
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000006229 carbon black Substances 0.000 claims abstract description 5
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 4
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 8
- 229920000515 polycarbonate Polymers 0.000 claims description 8
- 239000004417 polycarbonate Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims 2
- 229920000642 polymer Polymers 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 2
- 230000004913 activation Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000002989 correction material Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 229920002799 BoPET Polymers 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 239000005041 Mylar™ Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 239000011149 active material Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004425 Makrolon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 239000013011 aqueous formulation Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007725 thermal activation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/3825—Electric current carrying heat transfer sheets
-
- 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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/26—Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling
- B41J29/36—Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling for cancelling or correcting errors by overprinting
- B41J29/373—Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling for cancelling or correcting errors by overprinting sheet media bearing an adhesive layer effective to lift off wrongly typed characters
Definitions
- This invention relates to thermal printing and, more particularly, it relates to a laminated element which functions both for printing and lift-off correction, to a thermal printer using said element, and to a process for lift-off correction.
- Thermal. printing of the kind involved is by flow of melted material from a transfer medium which appears similar to a one-use typewriter ribbon. A lower lamination of the ribbon is heated, and printing is achieved by transferring ink from the ribbon to paper by means of local heating. Lift-off correction is the physical stripping of a printed character from the paper or other surface on which it is printed.
- Lift-off correction of printing by conventional typewriters is now a standard option.
- the cohesion of the ink must be greater than the affinity of the ink for the paper or other surface upon which it is applied.
- the ink is formulated so that the adhesion is one of surface adhesion between the ink and the paper rather than a viscous penetration of the paper fibers or wetting of the paper fibers with the ink layer.
- correction of erroneously typed characters is accomplished by adhesive removal from the surface of the paper, using a piece of correction material having an adhesive surface which is impacted onto the erroneously typed character.
- the character erroneously typed is the character once again impacted during lift-off erasure. This form of impact minimizes adhesion to the paper surrounding and in internal uninked parts of the character. Abrasion and other marking of the paper is thereby minimized.
- U.S. patent no. 3,998,314 is to the same general effect, but describes the lift-off layer only as impact compressible.
- the lift-off correction tape is fed by mechanisms separate from the imaging ribbon feed mechanisms. Desirable aspects of a combined or single ribbon feed are recognized.
- the above- mentioned U.S. patents 4,093,772 and 3,924,728 show a dual ribbon with lengthwise strips, one of marking material and one of lift-off correction material.
- a laminated element for thermal printing and correcting said printing by lift-off correction comprises an electrically resistive supporting substrate carrying an active layer, said active layer being pigmented for visual recognition when printed and being a thermoplastic which is non-tacky and cohesive at ordinary room temperatures and which forms a bond for lift-off correction of thermal printing made by said element after having been raised to temperatures above ordinary room temperatures and below temperatures at which said thermal printing by said element is effected.
- said active layer is a blend comprising an ethylene vinyl acetate copolymer, a compatible acrylic polymer, and carbon black.
- the thermal printer according to the invention is of the type which has a power source to power heat-producing elements which can be selectably activated in the form of a character to be printed while in contact with said laminated element from which marking material flows when heated by said elements, and is characterized in that it comprises control means adapted to be set during a lift-off correction operation to apply power from said power source to said laminated element in a substantial amount, said amount being less than power to effect said printing, while activating selected ones of said elements.
- a process of correcting a printed image which has been thermally printed from said laminated element is characterized in that it comprises the steps of :
- Non-tackyness of the laminated element not only simplifies the feeding of said element, but simplifies incidental handling and, should the correction material dislodge into the printer, the material does not tend to stick to important areas and is generally more easily cleaned away.
- the laminated element of the invention feeds well with low drag and does not require separate mounting and feed mechanisms.
- the printer of the invention has the capability of generating heat in the image of the character to be erased. This capability is used and the thermal activation of the correction material corresponds in form to the ink image of the character. This minimizes adhesion to the paper surrounding and internal to the character, thereby minimizing subsequent abrasion or other marking of the paper. This advantage corresponds to conventional erasure by impact printing, in which the printing element for the character to be lifted off is the one impacted against the paper. Correction by this thermal technique is largely noiseless as it involves no impact or abrasion.
- the printer is a typewriter having the usual keyboard 1, a platen 3 upon which paper 5 to be printed upon is supported and a thermal printing element or printhead 7 with a group of small electrodes 9 to effect printing of a selected character image. Selection of individual electrodes 9, as the printhead 7 is moved across the paper, makes possible the combination of minute dots of image to form virtually any image.
- One of the keybuttons 11 effects ordinary backspacing while another keybutton 13 effects the erasure operation to be described.
- Another key 15 effects forward spacing. Sequencing and other control of typewriter operations in response to operation of keyboard 1 is under control of electric logic and digital processing circuits as is now conventional in general respects in electronic typewriters.
- Fig. 1 the printhead 7 is shown broken away on the side toward the keyboard. The remaining structure is sufficiently indicated in Fig. 2.
- the supporting structure of printhead 7 is shown broken away to emphasize the single vertical row of electrodes 9 which are mounted within the printhead 7.
- each electrode 9 is either connected to printing potential or not connected, depending upon the pattern to be printed.
- Fig. 2 is a top view, also generally illustrative only, of the printing and erase area.
- Positioning member 20, pivoted at point 21, is attached to printhead 7.
- a ribbon 22 is unwound from a supply spool (not shown) around tensioning roller 24, across a guide roller 26, and to the end of printhead 7.
- Solenoid 27 is linked to an arm of positioning member 20, and, when activated, pulls member 20 clockwise to force the end of printhead 7 against paper 5 mounted on platen 3.
- solenoid 27 When solenoid 27 is de-energized, spring 28, connected to member 20 and to a point on the mechanism frame, pulls member 20 counterclockwise to thereby move printhead 7 away from paper 5.
- Ribbon 22 is pressed between the end of printhead 7 and paper 5 when solenoid 27 is activated. Ribbon 22 is then in contact with the ends of the vertical column of electrodes 9 (Fig. 1), which are mounted in printhead 7.
- a guide member 29 is selectably movable toward and away from platen 3. During correction, guide member 29 is moved toward platen 3 to present a face at paper 5 a distance selected to be about 6 millimeters prior to the printing position.
- member 29 is in the erase position, shown in Fig. 2, ribbon 22 is thereby positioned flat with the paper at the printing point and for about 6mm prior to the printing point. In a typical printing operation 6mm is about the width of two to four characters.
- Metering of the ribbon 22 is effected by cooperating metering rollers 30 and 32 located on the take-up side of printhead 7.
- Roller 30 is arranged on the side of the ribbon 20 that faces printhead 7 and is mounted at a fixed position with respect to printhead 7.
- Firm pressure contact with ribbon 22 is achieved by mounting roller 32 such that it is movable toward roller 30 and biased to provide a nipping force.
- Roller 30 is driven with each printing operation an amount approximately equal to the width of printing movement effected, so that the printhead 7 moves across. paper 5 with unused ribbon 22 opposite the printing position and with the ribbon 22 having no substantial motion in the direction of printing movement relative to paper 5.
- Roller 30 is formed of a conducting material such as brass and is preferably knurled to assure intimate contact and firm gripping. Current from the electrodes 9 in printhead 7 is collected by the electrically grounded roller 30 through contact with the side of the ribbon 22 which it contacts, which side is resistive as will be more fully discussed. To improve the connection further, roller 32 may be grounded and used to establish a connection through voids in the ink layer left by printing.
- Such operation and design of a thermal printer may be conventional, except for the guide member 29.
- the printhead 7 and ribbon-guide rollers 24, 26, 30 and 32 are mounted on a carrier 34 which moves across the length of a stationary platen 3.
- the guide member 29 may similarly be mounted on carrier 34, along with a suitable mechanism to move it toward the platen. during correction.
- carrier 34 is attached to an electrical motor 36, which drives a belt or cable 38, the ends of which are connected to opposite sides of carrier 34.
- Guide member 29 presents a smooth, surface upon which ribbon 22 rests.
- Member 29 is mounted on the end of arm 150 (see Fig. 2), which is pivoted to carrier 34 at point 152.
- the other side of arm 150 is linked to solenoid 154.
- Spring 56 connects to arm 150 near member 29, with the other end connected to the frame of carrier 34.
- the assembly constitutes motive means linked to guide member 29 to render guide member 29 selectably movable toward and away from platen 3.
- solenoid 154 is not activated.
- Spring 56 therefore pulls arm - '150 clockwise to bring guide member 29 away from platen 3 to the position shown in dotted outline in Fig. 2. Therefore, during printing, ribbon 22 is pulled away from paper 5 while still hot.
- solenoid 154 is activated, pivoting arm 150 counterclockwise and bringing guide member 29 toward platen 3 so that ribbon 22 is held against paper 5 in the span between printhead 7 and guide member 29.
- An electrical lead shown illustratively as a single wire 40, connects the electrodes 9 (Fig. 1) of printhead 7 to an electrical power supply 42.
- a switch 44 has two positions, a print position at which the full potential of power supply 42 is connected to the electrodes 9 and a correct position at which a connection is made to line 46 which results in a portion of the power of supply 42 being applied to the electrodes 9.
- the ribbon is a three layer element of an active material 50 of typically 4 to 6 microns in thickness, an aluminum layer 52 of about 1000 Angstrom in thickness which serves as current return path, and a resistive substrate 54 of typically 15 microns in thickness.
- the ribbon is, of course, wide enough to fit across the entire vertical row of electrodes 9.
- ribbon 22 Since printing is by complete release, ribbon 22 must be incremented with each printing step. Printing is effected by energizing selected ones of the electrodes 9 while those electrodes are in contact with substrate 54. Substrate 54 is also in contact with a broad, conductive area of roller 30, which disperses current beyond the location of electrodes 9. The high current densities in the areas near the energized point electrodes 9 produce intense local heating which causes, during printing, melting of active material 50 and resulting flow onto paper 5. During printing, guide member 29 is away from platen 3 so that ribbon 22 is pulled away from paper 5 while still hot. During lift-off correction, guide member 29 is moved to paper 5 so that ribbon 22 is held against paper 5 in the span between printhead 7 and guide member 29. During lift-off correction, as will be explained, the electrical potential and corresponding current is reduced, to-thereby cause a heating which brings out adhesion without flow of the character printed.
- the fabrication and the specific form of the resistive substrate 54 forms no essential part of this invention and any substrate with adequate physical and electrical characteristics may be employed.
- Polycarbonate is used as the resin material of the substrate of the preferred embodiment.
- a representative teaching of the fabrication of a polycarbonate substrate for this purpose is disclosed in the above- mentioned U. S. Patent No. 4,103,066.
- Three parts of a . polycarbonate resin (which may be Mobay Chemical Corporation Merlon or Makrolon or mixtures thereof and with a smaller amount of General Electric Co. GE3320 a polycarbonate block copolymer) is dissolved in approximately 93 parts of dichloromethane. Added to this mixture is approximately one part of conductive carbon (XC-72 from Cabot Corporation).
- This is first mixed in a shaker and then dispersed in a ball- mill jar containing steel balls.
- the dispersion is reverse roll coated onto a 0.125 mm Mylar substrate to the desired dry thickness.
- Mylar is a trademark of DuPont for polyethylene terephthalate. The solvent is then evaporated away.
- An electrically conducting-intermediate layer 52 of aluminum of 1000 Angstrom thickness is vacuum deposited upon this substrate.
- the aluminum is then overcoated, using a reverse roll coater, by a dispersion of the material of the active layer, the preferred embodiment being the aqueous formulation described below, to the desired dry thickness.
- the combined polycarbonate layer with aqueous-coated layer is stripped from the Mylar substrate. This is the final ribbon 22, with active material 50 being the water-applied layer, and the polycarbonate with carbon black being the substrate 54. It is slit to the desired width and wound into a spool.
- the following formula is the presently preferred formula for the active or marking layer 50. It yields the desired printing characteristics of being bodily releasable from paper 5 while being non-tacky at ordinary ambient temperatures, flowable to effect printing at high temperature, and developing adhesion or tack for printed characters at intermediate temperatures.
- lift-off correction is effected by first positioning the printhead 7 to act as in printing at the location of the incorrect character.
- the character "b" in the bottom of the two lines of printing shown is to be corrected.
- Printhead 7 is shown as being on the same line as that character. If not, the platen 3 is rotated to select the line.
- the normal printing current at each electrode 20 is 26 milliamperes (ma). During lift-off correction, the current to each electrode is 6-12 ma.
- the speed of movement of printhead 7 during normal printing is 6.35 cm per second. When the speed of movement of printhead 7 is reduced during lift-off correction, a typical speed is 3.81 cm per second. Return of printhead 7 after correction uses ordinary printer mechanisms.
- the 6mm span between printhead 7 and guide member 29 was the result of available space in the specific implementation and might desirably be less in other embodiments.
- the ribbon 22 is held in contact with printing on paper 5 after the initial heating. This is accomplished by guide member 29 which is then contiguous to paper 5, as is the end of printhead 7. Accordingly, the intermediate heat for erasure is applied, but the ribbon 22 stays in contact with paper 5 for the time of printing movement through about 6mm, at which point ribbon 22 clears member 29 and is directed away from paper 5 toward the nip of rollers 30 and 32 (Fig. 2).
- the lower level of heat supplied during erasure does not cause layer 50 of ribbon 22 to flow, but does produce an affinity or tack toward the printed character, which is, of course, of the same material since the characters are printed from the same ribbon 22.
- the subsequent cooling sets the adhesive bond.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US292552 | 1981-08-13 | ||
US06/292,552 US4384797A (en) | 1981-08-13 | 1981-08-13 | Single laminated element for thermal printing and lift-off correction, control therefor, and process |
US06/292,553 US4396308A (en) | 1981-08-13 | 1981-08-13 | Ribbon guiding for thermal lift-off correction |
US292553 | 1981-08-13 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0076892A2 true EP0076892A2 (fr) | 1983-04-20 |
EP0076892A3 EP0076892A3 (en) | 1983-05-18 |
EP0076892B1 EP0076892B1 (fr) | 1985-02-13 |
Family
ID=26967410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19820105763 Expired EP0076892B1 (fr) | 1981-08-13 | 1982-06-29 | Element ruban laminé pour impression thermique, dispositif imprimeur par la chaleur et procédé de correction par enlèvement de matière |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0076892B1 (fr) |
DE (1) | DE3262323D1 (fr) |
DK (1) | DK154933C (fr) |
ES (1) | ES8307604A1 (fr) |
HK (1) | HK18190A (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2144082A (en) * | 1983-07-27 | 1985-02-27 | Sharp Kk | Thermal printers |
EP0147520A1 (fr) * | 1983-10-11 | 1985-07-10 | International Business Machines Corporation | Imprimante thermique, méthode d'impression thermique et procédé propre à éliminer les caractères typographiés par erreur |
EP0167796A2 (fr) * | 1984-07-11 | 1986-01-15 | Pelikan Aktiengesellschaft | Bande de correction pour papier thermosensible |
EP0170133A2 (fr) * | 1984-07-31 | 1986-02-05 | International Business Machines Corporation | Mesure de correction répétitive pour enlever des caractères imprimés thermiquement |
EP0228292A2 (fr) * | 1985-12-28 | 1987-07-08 | Brother Kogyo Kabushiki Kaisha | Appareil d'imprimante pour effacer les caractères |
FR2594750A1 (fr) * | 1985-12-28 | 1987-08-28 | Canon Kk | Tete thermique et imprimante thermique l'utilisant |
GB2221653A (en) * | 1988-07-11 | 1990-02-14 | Alps Electric Co Ltd | Ribbon take-up devices for selective printers having ink-ribbon-cassettes |
US4947188A (en) * | 1987-04-27 | 1990-08-07 | Canon Kabushiki Kaisha | Thermal head and thermal recording apparatus using the same |
GB2254050A (en) * | 1991-03-29 | 1992-09-30 | Toshiba Kk | Thermal printhead driving arrangements for printing and erasing. |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3855448A (en) * | 1972-03-27 | 1974-12-17 | Canon Kk | Recording apparatus |
US4093772A (en) * | 1977-01-31 | 1978-06-06 | Burroughs Corporation | Pressure-activated and non-tacky lift-off element and process therefor |
US4103066A (en) * | 1977-10-17 | 1978-07-25 | International Business Machines Corporation | Polycarbonate ribbon for non-impact printing |
GB2001554A (en) * | 1977-08-01 | 1979-02-07 | Johnson & Johnson | Lift-off tape and process |
EP0033364A1 (fr) * | 1980-02-04 | 1981-08-12 | International Business Machines Corporation | Ruban pour écriture sans percussion |
-
1982
- 1982-06-29 EP EP19820105763 patent/EP0076892B1/fr not_active Expired
- 1982-06-29 DE DE8282105763T patent/DE3262323D1/de not_active Expired
- 1982-07-21 ES ES514205A patent/ES8307604A1/es not_active Expired
- 1982-08-12 DK DK362982A patent/DK154933C/da not_active IP Right Cessation
-
1990
- 1990-03-08 HK HK18190A patent/HK18190A/xx not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3855448A (en) * | 1972-03-27 | 1974-12-17 | Canon Kk | Recording apparatus |
US4093772A (en) * | 1977-01-31 | 1978-06-06 | Burroughs Corporation | Pressure-activated and non-tacky lift-off element and process therefor |
GB2001554A (en) * | 1977-08-01 | 1979-02-07 | Johnson & Johnson | Lift-off tape and process |
US4103066A (en) * | 1977-10-17 | 1978-07-25 | International Business Machines Corporation | Polycarbonate ribbon for non-impact printing |
EP0033364A1 (fr) * | 1980-02-04 | 1981-08-12 | International Business Machines Corporation | Ruban pour écriture sans percussion |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2144082A (en) * | 1983-07-27 | 1985-02-27 | Sharp Kk | Thermal printers |
GB2162468A (en) * | 1983-07-27 | 1986-02-05 | Sharp Kk | Thermal printer |
GB2162796A (en) * | 1983-07-27 | 1986-02-12 | Sharp Kk | Thermal printer |
EP0147520A1 (fr) * | 1983-10-11 | 1985-07-10 | International Business Machines Corporation | Imprimante thermique, méthode d'impression thermique et procédé propre à éliminer les caractères typographiés par erreur |
EP0167796A2 (fr) * | 1984-07-11 | 1986-01-15 | Pelikan Aktiengesellschaft | Bande de correction pour papier thermosensible |
EP0167796A3 (en) * | 1984-07-11 | 1987-12-16 | Pelikan Aktiengesellschaft | Correction tape for thermosensitive paper |
EP0170133A2 (fr) * | 1984-07-31 | 1986-02-05 | International Business Machines Corporation | Mesure de correction répétitive pour enlever des caractères imprimés thermiquement |
EP0170133A3 (en) * | 1984-07-31 | 1987-04-01 | International Business Machines Corporation | Repetitive mode for thermal printing lift-off correction |
FR2594750A1 (fr) * | 1985-12-28 | 1987-08-28 | Canon Kk | Tete thermique et imprimante thermique l'utilisant |
EP0228292A2 (fr) * | 1985-12-28 | 1987-07-08 | Brother Kogyo Kabushiki Kaisha | Appareil d'imprimante pour effacer les caractères |
EP0228292A3 (en) * | 1985-12-28 | 1988-07-27 | Brother Kogyo Kabushiki Kaisha | A character-erasable printing apparatus |
US4947188A (en) * | 1987-04-27 | 1990-08-07 | Canon Kabushiki Kaisha | Thermal head and thermal recording apparatus using the same |
GB2221653A (en) * | 1988-07-11 | 1990-02-14 | Alps Electric Co Ltd | Ribbon take-up devices for selective printers having ink-ribbon-cassettes |
GB2221653B (en) * | 1988-07-11 | 1992-08-05 | Alps Electric Co Ltd | Thermal transfer printers |
GB2254050A (en) * | 1991-03-29 | 1992-09-30 | Toshiba Kk | Thermal printhead driving arrangements for printing and erasing. |
US5555010A (en) * | 1991-03-29 | 1996-09-10 | Kabushiki Kaisha Toshiba | Rewritable recording apparatus |
Also Published As
Publication number | Publication date |
---|---|
HK18190A (en) | 1990-03-16 |
DK154933C (da) | 1989-05-29 |
DK154933B (da) | 1989-01-09 |
DE3262323D1 (en) | 1985-03-28 |
EP0076892A3 (en) | 1983-05-18 |
ES514205A0 (es) | 1983-07-01 |
DK362982A (da) | 1983-02-14 |
ES8307604A1 (es) | 1983-07-01 |
EP0076892B1 (fr) | 1985-02-13 |
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