EP0640485B1 - Imprimante thermique - Google Patents
Imprimante thermique Download PDFInfo
- Publication number
- EP0640485B1 EP0640485B1 EP94401787A EP94401787A EP0640485B1 EP 0640485 B1 EP0640485 B1 EP 0640485B1 EP 94401787 A EP94401787 A EP 94401787A EP 94401787 A EP94401787 A EP 94401787A EP 0640485 B1 EP0640485 B1 EP 0640485B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- paper
- roll
- thermal
- printer
- roller
- 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.)
- Expired - Lifetime
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
- 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
Definitions
- the invention relates to thermal printers, and both printers as such, peripherals of other equipment, that devices with integrated printer, such as fax machines.
- the invention relates to thermal printers in which a thermal print head with resistive elements heated, is arranged to print, on a support a priori in paper, pages of a document, to be received from a correspondent if it is a fax machine.
- thermal printers There are mainly two types of printers thermal.
- the support is a special thermal paper, used in roll.
- the support is plain paper, then used in sheets and in reams, but which requires a special printing ribbon, used in roller. More specifically, it is a ribbon coated with a layer hot-melt ink which, when printed, by activating the heating elements from the head, is transferred to a sheet of paper. This is called thermal transfer printing.
- JP-59 059470 teaches a printer that can print sheets of plain paper from a tray using transfer ribbon or heat-sensitive roll paper, replacing tape and received in the housing thereof to limit the volume of the printer. As a result, the printer is limited to the use of rollers thermal paper of very limited size, quickly depleting.
- the present invention aims to remove this limitation.
- the invention relates to a thermal printer comprising a thermal print head, means for driving a paper support in front of the print head, means for introducing sheets of paper, means of extracting sheets of paper, means for driving a thermal transfer printing ribbon in front of the print head, the printer being arranged to receive a paper roll and the extraction means being arranged to unwind the paper roll, characterized in that it includes means arranged to receive a roller hub, movably mounted with a roll transfer and roll support position ink ribbon at a direct printing position and support a thermal paper roll.
- the position of the receiving means of a roller hub being variable, you can choose the receiving position of the thermal paper so that it can receive a roll of relatively large diameter.
- the means for driving the paper support, in sheets or in rolls, usually include a backing roller. Ways paper sheets are provided in the printer the invention but can naturally not be used in the event of a roll paper support.
- the printer is arranged to receive a roll of paper, thermal, but such an arrangement may not be used either.
- the printer shown in Figure 1 belongs to a fax machine and has a thermal print head 1 and a support roller 2 arranged opposite.
- a cover 3 of the printer supports an input magazine 4, associated with an introduction roller 4A, designed to receive a ream of 20 sheets of paper to print, while two pebbles extraction 5 ensure the extraction of the sheets of paper 20, which exit through a slot 3A in the cover 3.
- Two troughs 6 and 7 are arranged to guide the paper 20, respectively entering and outgoing from magazine 4 to head 1 and roller 2, passing between them two, and from the head 1 towards the extraction rollers 5 and the slot 3A.
- a housing 11 of the printer here comprises a fixed axis 12 carrying a supply roll 13 of thermal printing ribbon 14, while that a housing 15 has a drive axis 16 carrying a take-up roll 17 of used tape 14 and coupled in rotation with him.
- the tape 14 passes from the supply roller 13 to the take-up roller 17 by being pressed against the head 1, between the latter and the roller support 2.
- the support roller 2 is rotated by a gear not shown common to the extraction rollers 5 and also ensures, by friction, the drive of the paper 20 and the tape 14.
- a drive motor 18 rotates the axis 16 and unwinds the tape 2 against the action of a guide roller 19 disposed leaving the housing 11.
- a presence detector 21 is also provided. of the ribbon-feeder roller 13.
- the same printer is shown in Figure 2, but is there equipped with a removable receptacle 23 arranged to receive a roll 33 of heat-sensitive paper 34, here carried by an axis or hub 32.
- the receptacle 23 is removably fixed, not illustrated, by clipping on the cover 3, and comprises a chute 24 guide for bringing the heat-sensitive paper 34 to the print head 1.
- the cover 3 here has an external surface 25 of locally concave circular cylindrical shape completing that of the receptacle 23 for coating the paper 33.
- a detector 22 is arranged to detect the presence of the roller of paper 33.
- the detectors 21 and 22 serve to improve the control of the thermal paper guide 33 at the outlet and to be adjusted control of the print head 1 according to the type printing, by tape or with heat-sensitive paper.
- FIG. 3 The second example shown in Figure 3 is the counterpart of that of Figure 1 and the printer, still a fax machine, uses a roll 113 of consumable heat sensitive tape 114.
- the elements of Figures 3 and 4 similar to those of Figures 1 and 2 bear the same reference there, preceded by the hundred 1 and the tens 1 if applicable. Because of this, they are not again described.
- the printer works with a roll 133 of thermal paper 134.
- the cover 103 has an opening 140 bordered by two rotary shutters 141 and 142 opening outwards to receive the roller 133 of thermal paper 134.
- a sliding shutter 143 is mounted sliding on flap 141 to reach the edge in the deployed position shutter 142 and thus close the housing 123 of the roller paper 133.
- a pair of rods, of which only one, 135, is shown, are rotatably mounted at one end around an axis 136 neighboring the connection of the shutter 142 with the cover 103, and they comprise respectively, at opposite ends, two bearings 137 around which a pair is rotatably mounted respectively other links, one of which, 138, is shown.
- the rods 135 and 138 are axially spaced to frame the roller 133 by its sides.
- the bearings 137 are provided to receive the hub 132 of the roller 133.
- the rods 138 provide lateral support roll paper 133 and, in this example, also provide braking.
- flaps 141-143 occupy at rest a folded position, for which they are stacked and close the cover 103, while the rods 135 and 138 are folded back inside the cover 103.
- the links 135 and 138 arranged to receive the hub 132 of the roller 133, are mounted movable from one position 113 thermal transfer printing and roll media ink ribbon at a direct print and media position from roll 133 of thermal paper.
- shutters 141-143 are movable between a closed position and a position opening and receiving the roll 133 of thermal paper.
- the ribbon supply roller 213 and the roll of 233 heat-sensitive paper are housed in the printer, here next to side.
- the presence of the tape feed roller 313 and of the thermo-sensitive paper roll 333 are exclusive of one of the other because they occupy dwellings with a common volume.
Landscapes
- Electronic Switches (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Impression-Transfer Materials And Handling Thereof (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Handling Of Continuous Sheets Of Paper (AREA)
Description
- la figure 1 est une vue latérale schématique de la première forme de réalisation préférée de l'imprimante de l'invention, utilisant un ruban encreur d'impression à transfert thermique,
- la figure 2 représente l'imprimante de la figure 1, utilisant alors un rouleau de papier thermique,
- la figure 3 est une vue latérale schématique de la seconde forme de réalisation préférée de l'imprimante de l'invention, utilisant un ruban à transfert thermique,
- la figure 4 représente l'imprimante de la figure 3, utilisant alors un rouleau de papier thermique et
- les figures 5 et 6 sont des vues latérales d'une troisième et d'une quatrième forme de réalisation préférée de l'imprimante de l'invention.
Claims (4)
- Imprimante thermique comprenant une tête d'impression thermique (1), des moyens d'entraínement (2, 5) d'un support papier (20, 34) devant la tête d'impression (1), des moyens (4) d'introduction de feuilles de papier (20), des moyens (5) d'extraction des feuilles de papier (20), des moyens (18) pour entraíner un ruban (14) d'impression par transfert thermique devant la tête d'impression (1), l'imprimante étant agencée pour recevoir un rouleau de papier (33) et les moyens d'extraction (5) étant agencés pour dérouler le rouleau de papier (33), caractérisée par le fait qu'elle comporte des moyens (135, 138) agencés pour recevoir un moyeu (132) de rouleau, montés mobiles d'une position d'impression par transfert thermique et de support d'un rouleau (113) de ruban encreur à une position d'impression directe et de support d'un rouleau (133) de papier thermique.
- Imprimante selon la revendication 1, dans laquelle les moyens d'entraínement (2, 5) du support papier (20, 34) comprennent un rouleau d'appui (2).
- Imprimante selon l'une des revendications 1 et 2, dans laquelle des moyens de fixation sont agencés pour recevoir une goulotte (24) d'amenée d'un réceptacle (23) d'un rouleau de papier (33).
- Imprimante selon l'une des revendications 1 à 3, dans laquelle il est prévu des volets (141 - 143) mobiles entre une position de fermeture et une position d'ouverture et de réception du rouleau (133) de papier thermique.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9309540 | 1993-08-03 | ||
FR9309540A FR2708522B1 (fr) | 1993-08-03 | 1993-08-03 | Imprimante thermique. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0640485A1 EP0640485A1 (fr) | 1995-03-01 |
EP0640485B1 true EP0640485B1 (fr) | 1998-03-11 |
Family
ID=9449888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94401787A Expired - Lifetime EP0640485B1 (fr) | 1993-08-03 | 1994-08-03 | Imprimante thermique |
Country Status (6)
Country | Link |
---|---|
US (1) | US5585828A (fr) |
EP (1) | EP0640485B1 (fr) |
AT (1) | ATE163886T1 (fr) |
DE (1) | DE69408918T2 (fr) |
ES (1) | ES2115176T3 (fr) |
FR (1) | FR2708522B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5276677B2 (ja) * | 2011-01-21 | 2013-08-28 | シチズンホールディングス株式会社 | 用紙検出装置およびプリンタ |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57152980A (en) * | 1981-03-17 | 1982-09-21 | Canon Inc | Electronic device |
JPS58118271A (ja) * | 1982-01-08 | 1983-07-14 | Fuji Xerox Co Ltd | 感熱記録プリンタ |
JPS5959470A (ja) * | 1982-09-30 | 1984-04-05 | Toshiba Corp | 熱記録装置 |
JPS6122965A (ja) * | 1984-07-11 | 1986-01-31 | Toshiba Corp | 画像形成装置 |
JPS61120773A (ja) * | 1984-11-16 | 1986-06-07 | Canon Inc | 熱記録装置 |
JPS61213172A (ja) * | 1985-03-18 | 1986-09-22 | Toshiba Corp | 記録装置 |
JPH022023A (ja) * | 1988-06-10 | 1990-01-08 | Minolta Camera Co Ltd | サーマルプリンタ |
JP3050622B2 (ja) * | 1991-03-27 | 2000-06-12 | シャープ株式会社 | 印字装置 |
-
1993
- 1993-08-03 FR FR9309540A patent/FR2708522B1/fr not_active Expired - Fee Related
-
1994
- 1994-08-03 US US08/285,420 patent/US5585828A/en not_active Expired - Fee Related
- 1994-08-03 ES ES94401787T patent/ES2115176T3/es not_active Expired - Lifetime
- 1994-08-03 DE DE69408918T patent/DE69408918T2/de not_active Expired - Fee Related
- 1994-08-03 AT AT94401787T patent/ATE163886T1/de active
- 1994-08-03 EP EP94401787A patent/EP0640485B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2708522B1 (fr) | 1995-09-29 |
FR2708522A1 (fr) | 1995-02-10 |
DE69408918T2 (de) | 1998-10-15 |
ES2115176T3 (es) | 1998-06-16 |
DE69408918D1 (de) | 1998-04-16 |
ATE163886T1 (de) | 1998-03-15 |
EP0640485A1 (fr) | 1995-03-01 |
US5585828A (en) | 1996-12-17 |
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