EP0135693A2 - Dispositif pour imprimantes thermiques destiné à prévenir les méandres du ruban - Google Patents
Dispositif pour imprimantes thermiques destiné à prévenir les méandres du ruban Download PDFInfo
- Publication number
- EP0135693A2 EP0135693A2 EP84108431A EP84108431A EP0135693A2 EP 0135693 A2 EP0135693 A2 EP 0135693A2 EP 84108431 A EP84108431 A EP 84108431A EP 84108431 A EP84108431 A EP 84108431A EP 0135693 A2 EP0135693 A2 EP 0135693A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- ribbon
- carbon
- correcting plate
- carbon ribbon
- run
- 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
Images
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
- B41J17/30—Constructions of guides for the impression-transfer material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/325—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads by selective transfer of ink from ink carrier, e.g. from ink ribbon or sheet
-
- 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
- B41J35/04—Ink-ribbon guides
- B41J35/08—Ink-ribbon guides with tensioning arrangements
Definitions
- the present invention relates to a thermal printer in which a heat-sensitive transfer carbon ribbon is heated by a thermal head to have its carbon transferred to print labels in the form of a paper web.and, more particularly, to a ribbon meandering preventing device for use with a thermal printer, which prevents the carbon ribbon from meandering due to its slackness and/or swinging motion caused by the vibrations of the thermal head during the printing operation so that the carbon ribbon can be fed in a satisfactory state to the printing unit of the thermal printer.
- Life Styles are diversified in accordance with the development of industry so that labels printed with data such as quality indications or kind controls are applied to all commodities.
- labels printed with data such as quality indications or kind controls are applied to all commodities.
- a great number of labels are required to make it urgent to develop a printer which is improved to meet that demand.
- the label web and a heat-sensitive transfer carbon ribbon for thermal transfer of the labels are fed together to a thermal head.
- the carbon ribbon is made so soft that it vibrates while it is intermittently being fed by the action of a step motor. If the carbon ribbon vibrates, it swings into the so-called "meandering run”. Then, the abutting state of the carbon ribbon with the thermal head becomes unstable so that it possibly has its portion left unprinted or wrinkled to have a serious defect.
- the meandering run is also caused as a result of slight change in the adjustment of the printing speed in view of the progress of the printing operation.
- the thermal printer has to be checked and adjusted so that its printing operations become inefficient.
- the present invention has been proposed in view of the background thus far described and has an object to provide a ribbon meandering preventing device for a thermal printer, which can ensure clear prints without any defficient portion by preventing a heat-sensitive transfer carbon ribbon from vibrating.
- a ribbon meandering preventing device for a thermal printer comprising: a ribbon correcting plate for elastically supporting a heat-sensitive transfer carbon ribbon while dragging the same, immediately before said carbon ribbon is guided to run side by side with a paper web of labels for a transfer-printing operation; and cantilever means for cantilevering said ribbon correcting plate such that the remaining free end of said ribbon correcting plate is held to abut against said carbon ribbon for tensing the same to absorb the slackness and/or meandering run, if nay, of said carbon ribbon.
- a paper web of labels A is let off from a label let-off roll 2 and is guided by a guide roller 3 to run via a label detector 4 to a platen 10 and a thermal head 11.
- a heat-sensitive transfer carbon ribbon B is let off from a ribbon let-off roll 5 and is guided by a guide roller 8a, a ribbon detector 9 and a guide roller 8b.
- the two guide rollers 8a and 8b are pivotted on a supporting frame 7.
- the carbon ribbon B thus guided is pulled out to accompany,i.e., to run side by side with the aforementioned label web A at a ribbon correcting plate 17 of the ribbon meandering preventing device, in other words, immediately upstream of the aforementioned platen 10 and thermal head 11.
- the united tape of the label web A and the carbon ribbon B is fed to the plate 10 and the thermal head 11 so that carbon may be transferred to print the labels A one by one by the heat of the thermal head 11 in accordance with indicia which are selected and stored in advance.
- the carbon ribbon B is guided by a guide roller 8c until it is taken up by means of a ribbon take-up roll 6.
- the label web A printed in the carbon having the aforementioned desired indicia is cut by a rotary cutter 12, which is connected with the label detector 4, into the printed labels A of a predetermined size.
- These labels A are fed through a chute 13 to a label applicator 14 so that they may be applied to commodities or the like.
- a prime mover for running the label web A and the carbon ribbon B is a step motor 15 for intermittently revolving the platen 10. The revolutions of the step motor 15 are transmitted, too, to the rotary cutter 12 and the ribbon take-up roll 6 which has a slip structure.
- reference numeral 16 appearing in Fig. 1 indicates a cooling fan for dissipating the heat during the heat transfer print by the thermal head 11.
- the ribbon correcting plate 17 of the ribbon meandering preventing device of the present invention is made of a thin plate having an elasticity and is cantilevered at 19, i.e., supported at its base end. More specifically, the ribbon correcting plate 17 has its base end fixed to the thermal printer 1 by fastening means 20 such as bolts or screws and its leading free end. 18 rounded to allow the carbon ribbon B to smoothly run thereon while dragging the same.
- the carbon ribbor B is guided to come into abutment against the free end edge 18 of the ribbon correcting plate 17 in the vicinity of the feed side of the thermal head 11 so that it is tensed and guided to run side by side with the label web A.
- the slackness and/or meandering run of the carbon ribbon B which are caused by the vibrations of the platen 10 being intermittently revolved, can be absorbed by that free end edge 18 of the ribbon correcting plate 17, which applies the tension and drag to the carbon ribbon B.
- the ribbon correcting plate holding the elasticity is cantilevered in the vicinity of the feed side of the thermal head for supporting elastically and dragging the carbon ribbon immediately before the carbon ribbon is guided to run side by side with the label web.
- the device of the present invention can absorb the slackness and/or meandering run of the carbon ribbon to have an advantage that it can ensure the clear prints without any defficiency.
Landscapes
- Impression-Transfer Materials And Handling Thereof (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13962583U JPS6048458U (ja) | 1983-09-10 | 1983-09-10 | サ−マルプリンタ−のリボン蛇行防止装置 |
JP139625/83U | 1983-09-10 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0135693A2 true EP0135693A2 (fr) | 1985-04-03 |
EP0135693A3 EP0135693A3 (en) | 1986-03-19 |
EP0135693B1 EP0135693B1 (fr) | 1988-06-29 |
Family
ID=15249637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19840108431 Expired EP0135693B1 (fr) | 1983-09-10 | 1984-07-17 | Dispositif pour imprimantes thermiques destiné à prévenir les méandres du ruban |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0135693B1 (fr) |
JP (1) | JPS6048458U (fr) |
DE (2) | DE135693T1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2232931A (en) * | 1986-07-15 | 1991-01-02 | Monarch Marking Systems Inc | Tensioning ink-ribbons in thermal printers. |
WO2002028657A1 (fr) * | 2000-10-05 | 2002-04-11 | Sagem Sa | Dispositif pour faire des enregistrements visibles sur un support d'enregistrement a l'aide d'une feuille de transfert thermique |
EP1557274A3 (fr) * | 2004-01-26 | 2007-09-26 | Alps Electric Co., Ltd. | Imprimante par transfert thermique |
EP1900537A1 (fr) * | 2001-05-30 | 2008-03-19 | Wedg Co. Ltd | Dispositif d'enregistrement d'images |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3707215A (en) * | 1970-07-06 | 1972-12-26 | Honeywell Inc | Web tensioner for high speed printer |
US4232325A (en) * | 1978-11-08 | 1980-11-04 | Leeds And Northrup Ltd. | Thermal printing device with spring support tines |
GB2102740A (en) * | 1981-05-29 | 1983-02-09 | Tokyo Shibaura Electric Co | Printing apparatus |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54133913A (en) * | 1978-04-08 | 1979-10-18 | Nippon Telegraph & Telephone | Feed mechanism for combineddroll recording paper |
-
1983
- 1983-09-10 JP JP13962583U patent/JPS6048458U/ja active Pending
-
1984
- 1984-07-17 EP EP19840108431 patent/EP0135693B1/fr not_active Expired
- 1984-07-17 DE DE1984108431 patent/DE135693T1/de active Pending
- 1984-07-17 DE DE8484108431T patent/DE3472380D1/de not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3707215A (en) * | 1970-07-06 | 1972-12-26 | Honeywell Inc | Web tensioner for high speed printer |
US4232325A (en) * | 1978-11-08 | 1980-11-04 | Leeds And Northrup Ltd. | Thermal printing device with spring support tines |
GB2102740A (en) * | 1981-05-29 | 1983-02-09 | Tokyo Shibaura Electric Co | Printing apparatus |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2232931A (en) * | 1986-07-15 | 1991-01-02 | Monarch Marking Systems Inc | Tensioning ink-ribbons in thermal printers. |
GB2232931B (en) * | 1986-07-15 | 1991-04-17 | Monarch Marking Systems Inc | Printer |
WO2002028657A1 (fr) * | 2000-10-05 | 2002-04-11 | Sagem Sa | Dispositif pour faire des enregistrements visibles sur un support d'enregistrement a l'aide d'une feuille de transfert thermique |
EP1900537A1 (fr) * | 2001-05-30 | 2008-03-19 | Wedg Co. Ltd | Dispositif d'enregistrement d'images |
EP1557274A3 (fr) * | 2004-01-26 | 2007-09-26 | Alps Electric Co., Ltd. | Imprimante par transfert thermique |
US7414642B2 (en) | 2004-01-26 | 2008-08-19 | Alps Electric Co., Ltd. | Heat transfer printer |
Also Published As
Publication number | Publication date |
---|---|
JPS6048458U (ja) | 1985-04-05 |
EP0135693B1 (fr) | 1988-06-29 |
DE3472380D1 (en) | 1988-08-04 |
EP0135693A3 (en) | 1986-03-19 |
DE135693T1 (de) | 1985-08-14 |
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