EP0266679A1 - Thermodrucker mit Belegandruck- und Zuführrolle - Google Patents

Thermodrucker mit Belegandruck- und Zuführrolle Download PDF

Info

Publication number: EP0266679A1
Authority: EP; European Patent Office
Prior art keywords: roller; document; rotation; print head; axis
Prior art date: 1986-11-04
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

EP87115906A

Other languages

English (en)

French (fr)

Other versions

EP0266679B1 (de

Inventor

Jean-Marc Feron

Michel Prasloix

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.)

Compagnie Generale dAutomatisme CGA HBS SA

Original Assignee

Compagnie Generale dAutomatisme CGA HBS 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.)

1986-11-04

Filing date

1987-10-29

Publication date

1988-05-11

1987-10-29 Application filed by Compagnie Generale dAutomatisme CGA HBS SA filed Critical Compagnie Generale dAutomatisme CGA HBS SA

1988-05-11 Publication of EP0266679A1 publication Critical patent/EP0266679A1/de

1991-10-16 Application granted granted Critical

1991-10-16 Publication of EP0266679B1 publication Critical patent/EP0266679B1/de

2007-10-29 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
- B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering
- 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
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
- B41J25/316—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with tilting motion mechanisms relative to paper surface

Definitions

the present invention relates to a printer. More particularly, the invention relates to a printer with a thermal printing head intended for printing heat-sensitive pre-cut documents.
the invention is particularly applicable in the case where one wishes to fill in small pre-printed forms to be completed with certain information, or to write small texts previously recorded.
the subject of the invention is therefore a printer comprising a base, a thermal print head linked to the base, a pressure roller and carrier for a document to be printed, the geometric axis ⁇ of the roller being parallel to the active line of the print head, a channel for introducing said document guiding it towards said active line of the print head, between the latter and said roller, means for driving said roller in rotation, characterized in that said roller is mounted, free to rotate between two flanges of a mobile assembly articulated with two lateral uprights linked to said base, around an axis ⁇ parallel to the geometric axis of said roller, in that it comprises a freewheel mechanism comprising a outer ring and an inner ring, the internal ring being mounted integral in rotation with the roller and coaxial with it at one of its ends and the external ring of said freewheel mechanism being provided laterally with a lug which penetrates da ns a recess made in a support piece integral with said base, said recess being situated, with respect to said axis ⁇ of
the document downstream of the print head, is guided by guide means bringing, by a curved path, said document to an outlet close to its entry into said introduction channel and parallel to this entry.
a base 1 a thermal print head 2 linked to the base by fixing means such as 3, 4.
fixing means such as 3, 4.
To the base 2 are fixed two lateral uprights 5 and 6.
One piece support 7 is also fixed to the base 2 on the side of the lateral upright 6, next to this upright.
a recess 8 is made at the upper end of this support piece, the role of which will be explained later.
the above assembly forms the fixed part of the printer to which a mobile assembly is articulated comprising two flanges 9 and 10 between which is mounted, free in rotation a roller 11 which is used for driving a document to be printed 12 and pressing it against the thermal printing head 2.
the geometric axis ⁇ of the roller 11 is parallel to the upper plane of the printing head 2 and to its active line 13 located just below the lower generatrix of the roller 11.
the flanges 9 and 10 of the mobile assembly are braced by a beam 14 playing the role of stop for the document to be printed 12 at a given moment in the operation of the printer as will be explained below.
a bodywork comprising walls 15 and 16 delimiting a channel 17 for introducing and guiding the document to be printed 12 towards the active line 13 of the print head, between this line and the roller 11 , and also walls 18 and 19 constituting means for guiding the document 12 downstream of the print head 2 bringing the document by a curved path towards an outlet 20 close to the inlet 21 in the introduction channel 17 and disposed parallel to this inlet 21.
a motor 22 for driving the roller 11 in rotation.
a belt 23 passing over pulleys 24 and 25 enables the rotation of the motor 22 to be transmitted to the roller 11.
This moving part is articulated to the fixed part of the printer, at the level of the uprights 5 and 6 as far as the fixed part is concerned and at the level of the flanges 9 and 10 as regards the moving part, around an axis ⁇ parallel to the geometric axis ⁇ of the roller 11, by means of the pins 26 and 27.
the roller 11 On the side where the support piece 7 is located, the roller 11 is provided with a freewheel mechanism comprising an internal ring 28 and an external ring 29.
the internal crown 28 is mounted integral in rotation with the roller 11 and coaxially with it on its trunnion axis 30 in the flange 10.
the external crown 29 carries laterally a lug 31 which penetrates into the recess 8 of the support piece 7 .
the recess 8 and therefore also the lug 31 are located on the other side of the axis ⁇ of rotation of the roller with respect to the axis of articulation ⁇ and roughly in the same plane as the two axes ⁇ and ⁇ .
Figure 3 or on the contrary moved apart, Figure 5, the recess 8 and the lug 31 are located a little above or a little below the alignment of ⁇ and ⁇ .
a return spring 32 operating in traction is connected on the one hand to the abutment beam 14 of the movable assembly by a flexible wire 33 and on the other hand to the base 1 by a screw 34 and a nut 35 allowing the adjustment of the tensile force.
a first electro-optical detector 36-37 enables the presence of a document 12 to be detected in the introduction channel 17 and a second electro-optical detector 38-39 detects the document at the stop 14 (see figure 5).
the thermal print head 2, the motor 22 and the electro-optical detectors 36-37 and 38-39 are connected to a set of power supply and control electronics well known to those skilled in the art.
the printer works as follows: At rest, the assembly is in the position shown in FIGS. 1 and 3, the document 12 not being introduced and the roller 11 being stationary, the movable assembly is returned by the return spring 32 so that the roller 11 is pressed on the print head 2 which does not allow the document to be inserted to be inserted between the print head and the roller.
the printer user initializes the program by acting on the power supply and control electronics assembly.
the rotation of the roller is only a few degrees because the direction of rotation corresponding to that indicated by the arrow 40 is that where the crown external 29 of the freewheel mechanism is driven in this rotation and as this external ring 29 carries a lug 31, the latter bears against the wall of the recess 8 of the fixed support piece 7 causing, by reaction , and against the return spring 32, the rotation of the movable assembly around the axis of articulation ⁇ , spreading the roller 11 from the print head 2 and bringing the abutment beam 14 on the document path a shortly after the print head.
Figure 5 shows this position. In this position, the rear of the movable assembly abuts against the base 1.
the document 12 is pushed by the user to the stop 14.
the second electro-optical detector 38-39 thus detects the document against the stop and controls the emission of an audible signal for one second.
the motor 22 is driven in the opposite direction, corresponding for the roller in the direction of the arrow 41, FIG. 1, and which corresponds to the direction in which the outer crown 29 of the free wheel is not driven, it It follows that the lug 31 no longer rests on the bottom of the recess 8 and that the return spring 32 brings the roller in abutment against the document 12 and the print head 2.
the roller is then normally driven in rotation and the print head 2 is simultaneously supplied for printing the document according to the established program.
the document is driven by the roller, the stop 14 having disappeared.
FIG. 5 shows in thin dashed lines the document 12 in abutment against the abutment 14 and FIG. 1 shows the assembly during printing: abutment 14 cleared, roller 11 pressed against the document 12 and the head 2.
the document downstream of the head 2 is guided by the wall 18.
an audible signal is emitted, the user can extract the document which leads to exit 20.
the optical barrier of the electro-optical sensor 38-39 is cleared and the printer can receive a new document for a new printing cycle.

Landscapes

Common Mechanisms (AREA)
Electronic Switches (AREA)
Handling Of Sheets (AREA)

EP87115906A 1986-11-04 1987-10-29 Thermodrucker mit Belegandruck- und Zuführrolle Expired - Lifetime EP0266679B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8615353A FR2605932B1 (fr)	1986-11-04	1986-11-04	Imprimante a tete d'impression thermique comprenant un rouleau presseur et entraineur d'un document a imprimer
FR8615353		1986-11-04

Publications (2)

Publication Number	Publication Date
EP0266679A1 true EP0266679A1 (de)	1988-05-11
EP0266679B1 EP0266679B1 (de)	1991-10-16

Family

ID=9340512

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP87115906A Expired - Lifetime EP0266679B1 (de)	1986-11-04	1987-10-29	Thermodrucker mit Belegandruck- und Zuführrolle

Country Status (5)

Country	Link
US (1)	US4844631A (de)
EP (1)	EP0266679B1 (de)
DE (1)	DE3773837D1 (de)
ES (1)	ES2026882T3 (de)
FR (1)	FR2605932B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5139351A (en) *	1987-10-22	1992-08-18	Ricoh Company, Ltd.	Thermal recording apparatus having a movable platen roller
US4978973A (en) *	1988-12-13	1990-12-18	Kanzaki Paper Mfg. Co., Ltd.	Thermal printer
JPH04301474A (ja) *	1991-03-29	1992-10-26	Kanzaki Paper Mfg Co Ltd	熱転写プリンタ
JP2728194B2 (ja) *	1993-09-28	1998-03-18	三星電子株式会社	熱転写プリント方法
JP3600634B2 (ja) *	1994-05-18	2004-12-15	ペンタックス株式会社	感熱プリンタ
SG68612A1 (en) *	1996-03-14	1999-11-16	Seiko Epson Corp	Printer and control method therefor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0089287A1 (de) *	1982-03-15	1983-09-21	Realisations Etudes Electroniques	Kompakter Drucker
US4422782A (en) *	1982-06-28	1983-12-27	Ncr Corporation	Record member feed and support mechanism
EP0099957A1 (de) *	1982-07-29	1984-02-08	MANNESMANN Aktiengesellschaft	Vorrichtung zum Transportieren von Aufzeichnungsträgern in Druckern, insbesondere in Matrixdruckern
US4439051A (en) *	1982-09-24	1984-03-27	Ncr Corporation	Single printing station, multiple record member feeding mechanism
US4448559A (en) *	1981-06-19	1984-05-15	Tokyo Electric Co., Ltd.	Paper guide arrangement for printing apparatus
GB2147251A (en) *	1983-09-30	1985-05-09	Toshiba Kk	Printing apparatus
EP0155997A2 (de) *	1984-03-27	1985-10-02	Kabushiki Kaisha Sato	Betätigungsmechanismus für den Druckkopf eines Druckers
WO1986004021A1 (en) *	1984-12-28	1986-07-17	Ncr Corporation	Dot matrix printer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4000393A (en) *	1974-08-29	1976-12-28	Texas Instruments Incorporated	Thermal printhead assembly
US4234261A (en) *	1977-04-04	1980-11-18	Mannesmann Aktiengesellschaft	Printer
JPS6085979A (ja) *	1983-10-17	1985-05-15	Konishiroku Photo Ind Co Ltd	給紙方法
EP0157735A3 (de) *	1984-04-02	1988-09-14	Kurt Rünzi	Vorrichtung zum Zuführen von Einzelblättern zur Schreibwalze einer Büromaschine
US4583873A (en) *	1984-06-06	1986-04-22	International Business Machines Corporation	Printer with integral paper handling apparatus
JPS618369A (ja) *	1984-06-22	1986-01-16	Matsushita Electric Ind Co Ltd	プリンタ
US4744687A (en) *	1984-09-29	1988-05-17	Ricoh Company, Ltd.	Paper feed roller drive system for a printer
US4725858A (en) *	1986-08-26	1988-02-16	Miltope Corporation	Roller pressure unloading means for a thermal printing mechanism

1986
- 1986-11-04 FR FR8615353A patent/FR2605932B1/fr not_active Expired
1987
- 1987-10-29 DE DE8787115906T patent/DE3773837D1/de not_active Expired - Fee Related
- 1987-10-29 EP EP87115906A patent/EP0266679B1/de not_active Expired - Lifetime
- 1987-10-29 ES ES198787115906T patent/ES2026882T3/es not_active Expired - Lifetime
- 1987-11-04 US US07/116,302 patent/US4844631A/en not_active Expired - Fee Related

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4448559A (en) *	1981-06-19	1984-05-15	Tokyo Electric Co., Ltd.	Paper guide arrangement for printing apparatus
EP0089287A1 (de) *	1982-03-15	1983-09-21	Realisations Etudes Electroniques	Kompakter Drucker
US4422782A (en) *	1982-06-28	1983-12-27	Ncr Corporation	Record member feed and support mechanism
EP0099957A1 (de) *	1982-07-29	1984-02-08	MANNESMANN Aktiengesellschaft	Vorrichtung zum Transportieren von Aufzeichnungsträgern in Druckern, insbesondere in Matrixdruckern
US4439051A (en) *	1982-09-24	1984-03-27	Ncr Corporation	Single printing station, multiple record member feeding mechanism
GB2147251A (en) *	1983-09-30	1985-05-09	Toshiba Kk	Printing apparatus
EP0155997A2 (de) *	1984-03-27	1985-10-02	Kabushiki Kaisha Sato	Betätigungsmechanismus für den Druckkopf eines Druckers
WO1986004021A1 (en) *	1984-12-28	1986-07-17	Ncr Corporation	Dot matrix printer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 24, no. 7B, décembre 1981, pages 3951-3952, Armonk, US; S.A. OKCUOGLU et al.: "Paper feed mechanism" *

Also Published As

Publication number	Publication date
FR2605932B1 (fr)	1988-12-02
EP0266679B1 (de)	1991-10-16
US4844631A (en)	1989-07-04
ES2026882T3 (es)	1992-05-16
DE3773837D1 (de)	1991-11-21
FR2605932A1 (fr)	1988-05-06

Legal Events

Date	Code	Title	Description
1988-03-26	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1988-05-11	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): BE DE ES FR GB IT LU NL
1989-01-04	17P	Request for examination filed	Effective date: 19881107
1990-06-13	17Q	First examination report despatched	Effective date: 19900502
1991-08-30	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1991-10-16	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): BE DE ES FR GB IT LU NL
1991-11-20	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
1991-11-21	REF	Corresponds to:	Ref document number: 3773837 Country of ref document: DE Date of ref document: 19911121
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1992-10-07	26N	No opposition filed
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1993-12-16	EPTA	Lu: last paid annual fee
1994-10-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19941029 Ref country code: GB Effective date: 19941029
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1995-04-30	BERE	Be: lapsed	Owner name: CIE GENERALE D'AUTOMATISME CGA-HBS Effective date: 19941031
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1995-06-16	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1995-06-28	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19941029
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