EP0640485A1 - Thermodrucker - Google Patents

Thermodrucker Download PDF

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Publication number
EP0640485A1
EP0640485A1 EP94401787A EP94401787A EP0640485A1 EP 0640485 A1 EP0640485 A1 EP 0640485A1 EP 94401787 A EP94401787 A EP 94401787A EP 94401787 A EP94401787 A EP 94401787A EP 0640485 A1 EP0640485 A1 EP 0640485A1
Authority
EP
European Patent Office
Prior art keywords
paper
thermal
roll
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.)
Granted
Application number
EP94401787A
Other languages
English (en)
French (fr)
Other versions
EP0640485B1 (de
Inventor
Eric Cavarero
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.)
Sagem SA
Original Assignee
Sagem SA
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 Sagem SA filed Critical Sagem SA
Publication of EP0640485A1 publication Critical patent/EP0640485A1/de
Application granted granted Critical
Publication of EP0640485B1 publication Critical patent/EP0640485B1/de
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
    • 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, as well as printers as such, peripherals of other equipment, as devices with integrated printer, such as fax machines.
  • the invention relates to thermal printers in which a thermal print head, with resistive heating elements, is arranged to print, on a support a priori made of paper, pages of a document, to be received from a correspondent. if it is a fax machine.
  • a thermal print head with resistive heating elements
  • resistive heating elements are arranged to print, on a support a priori made of 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 thermal printers.
  • the support is a special so-called thermal paper, used in a roll.
  • the support In printers of the second type, which are starting to appear on the market, the support is plain paper, then used in sheets and in reams, but which requires a special printing ribbon, used in roll. More specifically, it is a ribbon coated with a layer of hot-melt ink which, during printing, by activating the heating elements of the head, is transferred to a sheet of paper. This is called thermal transfer printing.
  • 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 for 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.
  • the means for driving the paper support, in sheets or in rolls, generally comprise a support roller.
  • the means for introducing the sheets of paper are provided in the printer of the invention but can naturally not be used in the case of a roll paper support.
  • the printer is arranged to receive a thermal roll of paper, 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 sheets of paper 20 to be printed, while two extraction rollers 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, entering and leaving respectively, from the magazine 4 towards the head 1 and the 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 roller 13 of thermal printing ribbon 14, while a housing 15 comprises a drive axis 16 carrying a receiving roller 17 of used and coupled ribbon 14 rotating with him.
  • the tape 14 passes from the supply roller 13 to the take-up roller 17 being pressed against the head 1, between the latter and the support roller 2.
  • the support roller 2 is rotated by a gear (not shown) common to the extraction rollers 5 and also ensures, by friction, Driving the paper 20 and the ribbon 14.
  • a drive motor 18 rotates the axis 16 and unwinds the strip 2 against the action of a guide roller 19 disposed at the outlet of the housing 11.
  • the same printer is shown in FIG. 2, but is equipped there 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 onto the cover 3, and comprises a guide chute 24 for bringing the heat-sensitive paper 34 to the print head 1.
  • the cover 3 here has an external surface 25 of locally circular cylindrical shape concave complementing that of the receptacle 23 for coating the paper 33.
  • a detector 22 is arranged to detect the presence of the paper roll 33.
  • the detectors 21 and 22 serve to improve the control of the guiding of the thermal paper 33 at the outlet and to adjust the control of the print head 1 as a function of the type d printing, by tape or with heat-sensitive paper.
  • FIGS. 3 and 4 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 the heat-sensitive ribbon 114 consumable.
  • the elements of FIGS. 3 and 4 similar to those of FIGS. 1 and 2 bear the same reference there, preceded by the hundred 1 and the tens 1 if applicable. Therefore, they are not described again.
  • the printer operates 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 roll 133 of thermal paper 134.
  • a sliding shutter 143 is mounted sliding on the shutter 141 so, in the deployed position, reach the outer edge of the shutter 142 and thus close the housing 123 of the paper roll 133.
  • a pair of rods, of which only one, 135, is shown, are rotatably mounted at one end around an axis 136 adjacent to the connection of the flap 142 with the cover 103, and they respectively comprise, at opposite ends, two bearings 137 around which are rotatably mounted a pair of other rods, one of which, 138, is shown.
  • the links 135 and 138 are axially distant to frame the roller 133 by its sides.
  • the bearings 137 are provided to receive the hub 132 of the roller 133.
  • the links 138 provide lateral support for the paper of the roller 133 and, in this example, also ensure its braking.
  • the flaps 141-143 occupy at rest a folded position, for which they are superimposed and close the cover 103, while the links 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 a thermal transfer printing and support position of the roller 113 of ink ribbon to a direct printing and support position. from roll 133 of thermal paper.
  • the flaps 141-143 are movable between a closed position and an open and receiving position of the roll 133 of thermal paper.
  • the ribbon supply roller 213 and the heat-sensitive paper roll 233 are housed in the printer, here side by side.
  • the presence of the tape-feeding roll 313 and the heat-sensitive paper roll 333 are mutually exclusive because they occupy housings having a common volume.

Landscapes

  • Electronic Switches (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
EP94401787A 1993-08-03 1994-08-03 Thermodrucker Expired - Lifetime EP0640485B1 (de)

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 true EP0640485A1 (de) 1995-03-01
EP0640485B1 EP0640485B1 (de) 1998-03-11

Family

ID=9449888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401787A Expired - Lifetime EP0640485B1 (de) 1993-08-03 1994-08-03 Thermodrucker

Country Status (6)

Country Link
US (1) US5585828A (de)
EP (1) EP0640485B1 (de)
AT (1) ATE163886T1 (de)
DE (1) DE69408918T2 (de)
ES (1) ES2115176T3 (de)
FR (1) FR2708522B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4949097A (en) * 1988-06-10 1990-08-14 Minolta Camera Kabushiki Kaisha Thermal printer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152980A (en) * 1981-03-17 1982-09-21 Canon Inc Electronic device
JP3050622B2 (ja) * 1991-03-27 2000-06-12 シャープ株式会社 印字装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4949097A (en) * 1988-06-10 1990-08-14 Minolta Camera Kabushiki Kaisha Thermal printer

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 174 (M - 490)<2230> 19 June 1986 (1986-06-19) *
PATENT ABSTRACTS OF JAPAN vol. 10, no. 307 (M - 527)<2363> 18 October 1986 (1986-10-18) *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 50 (M - 562)<2497> 17 February 1987 (1987-02-17) *
PATENT ABSTRACTS OF JAPAN vol. 7, no. 223 (M - 247)<1368> 4 October 1983 (1983-10-04) *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 164 (M - 313)<1601> 28 July 1984 (1984-07-28) *

Also Published As

Publication number Publication date
FR2708522B1 (fr) 1995-09-29
EP0640485B1 (de) 1998-03-11
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
US5585828A (en) 1996-12-17

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