EP1044817A2 - Imprimante à jet d'encre et procédé de son opération - Google Patents

Imprimante à jet d'encre et procédé de son opération Download PDF

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Publication number
EP1044817A2
EP1044817A2 EP00108345A EP00108345A EP1044817A2 EP 1044817 A2 EP1044817 A2 EP 1044817A2 EP 00108345 A EP00108345 A EP 00108345A EP 00108345 A EP00108345 A EP 00108345A EP 1044817 A2 EP1044817 A2 EP 1044817A2
Authority
EP
European Patent Office
Prior art keywords
ink
paper
temperature
heated
ink jet
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.)
Withdrawn
Application number
EP00108345A
Other languages
German (de)
English (en)
Other versions
EP1044817A3 (fr
Inventor
Sadami c/o Mutoh Industries Ltd. Koyama
Mikita c/o Mutoh Industries Ltd. Haruyama
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.)
Mutoh Industries Ltd
Original Assignee
Mutoh Industries Ltd
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 Mutoh Industries Ltd filed Critical Mutoh Industries Ltd
Publication of EP1044817A2 publication Critical patent/EP1044817A2/fr
Publication of EP1044817A3 publication Critical patent/EP1044817A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • B41J11/0015—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 for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B41J11/0024—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using conduction means, e.g. by using a heated platen
    • B41J11/00244—Means for heating the copy materials before or during printing
    • 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
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04528—Control methods or devices therefor, e.g. driver circuits, control circuits aiming at warming up the head
    • 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
    • B41J11/0015—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 for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B41J11/0024—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using conduction means, e.g. by using a heated platen
    • 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
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04563—Control methods or devices therefor, e.g. driver circuits, control circuits detecting head temperature; Ink temperature
    • 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
    • B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns

Definitions

  • the present invention relates generally to computer hard copy printers, and more particularly to ink jet printers in which ink droplets from a recording head of the ink jet type are discharged to a paper on a platen to perform a drafting or printing on the paper.
  • the present invention relates to an ink jet printer according to the preamble of claim 1 and to a method according to the preamble of claim 4.
  • JP 4-263949 A or JP 2576470 B discloses an inkjet printer in which a platen heater is mounted on a platen, and the paper on the platen is heated by heating the platen. The droplets discharged from the recording head are caused to adhere to the paper.
  • the printing quality may vary.
  • the ink goes into the drafting medium and slightly dissolves the drafting medium, and the ink tends to run depending on the quality of the drafting medium. This phenomenon seems to form a problem.
  • this problem is greatly influenced by the case where ink of the solvent type is used, such an influence is recognized also when ink of an other kind is used.
  • the diameter or shape of the dots of the ink is not uniform according to the manner of blot of the ink, and the finish precision of a completed print (drawings, pictures and the like) is poor, and a fine finish is hard to obtain which are problems.
  • Object of the present invention is to solve or minimize the foregoing points and problems and to provide an ink jet printer and a method for operating an ink jet printer, with improved printing quality.
  • the shape of the dots of ink fails to become a uniform circular shape, or its diameter fails to be uniform due to the foregoing problem and due to the finding that when the ink is injected from a nozzle of the recording head and the ink reaches the drafting medium, a sharp temperature change occurs in the ink and a disarray such as diffusion, blot and the like tends to occur once there is a difference in the temperature of the ink and the temperature of the drafting medium. As a result, the finish accuracy deteriorates.
  • the present invention proposes to heat both the drafting medium and the ink (recording head) to equalize both the medium and the ink to an almost same temperature.
  • this is used in ink jet printers in which a paper support provided on a machine body is heated, and ink droplets from a recording head of an inkjet type are discharged onto the heated paper and the drafting or printing is performed on the paper in a condition where the paper on the paper support is heated and a drafting quality of such ink jet printers is thus improved.
  • the paper sandwiched between a feed roller and a pressure roller is fed onto a platen by the rotation of the feed roller, and it is heated at a desired temperature which is preferably set between 35°C and 50°C by a heater provided on the platen.
  • the ink droplets heated at a temperature same with the heated paper or almost same with the temperature are discharged and the printing is carried out on the paper.
  • reference numeral 2 denotes a machine body of the ink jet printer.
  • the machine body 2 is supported on a leg body 4.
  • a pedestal 6 extending in a direction perpendicular to the surface of the paper is fixed, and a platen 8 provided with a heater 7 is supported on the pedestal 6 by means of bases 10.
  • Paper guides 12, 14 are disposed back and forth of the platen 8.
  • Reference numeral 16 denotes a pair of struts (the other is omitted) fixed to the vicinity of both ends of the pedestal 6, and a Y rail 18 is mounted on an upper portion the struts 16.
  • a support base 20 is fixed, and a feed roller 22 is journalled on the support base 20.
  • the feed roller 22 is connected to an X axis drive device to be controlled by a controller (illustration is omitted).
  • a plurality of roller holders 24 are journalled at 26 on the Y rail 18. At the tip of each of the roller holders 24, a pressure roller 28 is rotatably journalled in opposition to the feed roller 22.
  • roller holders 24 are biased in a clock direction in FIG. 1 with the axis 26 being a fulcrum by means of a tensile force of tensile springs 30.
  • a cam shaft 32 fixed with a cam 32a is rotatably journalled on an upper surface side of the roller holders 24, and a lever 34 is fixed to one end of the cam shaft 32.
  • the lever 34 is swivelled by manual operation and the like, the cam shaft 32 turns, and the roller holders 24 swivell in anti-clock direction in FIG. 1 with the axis 26 as the center by the pressure of the cam 32a, and the pressure rollers 28 are separated from the feed roller 22 by a predetermined distance.
  • each pressure roller 28 contacts the feed roller 22 resiliently by the tensile resilient force of each spring 30.
  • a Y cursor or carriage 36 is shiftably mounted on the Y rail 18 through a roller.
  • An inkjet type recording head 38 is mounted on the Y cursor or carriage 36, and the platen 8 is in opposition to the recording head 38.
  • a heater 39 is built in the recording head 38. Temperature sensors 46, 48 are mounted on the platen 8 and the recording head 38, and temperature signals of the platen 8 and the recording head 38 are supplied to the controller of the ink jet printer from the sensors 46, 48.
  • the heaters 7, 39 are connected to the controller by means of drive units 50, 52 (Fig. 2).
  • the platen 8 and the paper guides 12, 14 constitute a paper support, and the heater 7 may be disposed at a printing unit of the paper support and at a proper location in the upper stream side relative to the printing unit.
  • Paper 40 drawn out from a roll 40a of paper supported on the leg body 4 is arranged to be taken upon a take-up roller 44 supported on the leg body 4 through a guide roller 42, paper guide 12, and between feed roller 22 and pressure rollers 28 and platen 8 and paper guide 14.
  • the pressure roller 28 is lifted from the feed roller 22, and the paper 40 is inserted between the rollers 22 and 28, and thereafter, the pressure roller 28 is lowered and the paper 40 is sandwiched by the pressure roller 28 and the feed roller 22.
  • the heaters 7, 39 are energized, whereby the platen 8 and the recording head 38 are heated.
  • the temperature of the platen 8 and the recording head 38 is controlled on the basis of a temperature control program (software) 56 stored in a ROM 54 of the controller so that the paper 40 on the platen 8 and the ink discharged from a nozzle of the recording head 38 are heated at temperatures between 35°C and 50°C which are mutually equal or almost equal temperatures.
  • the platen 8 since the platen 8 is located at a position where hands of an operator generally tend to touch, it is dangerous to raise the temperature without due consideration, and generally about 55°C is a limit. Assuming that the upper limit of the temperature of the platen 8 is 55°C, the temperature of the drafting medium that shifts over the platen 8 becomes about 50°C when the foregoing temperature drop is taken into consideration, and this temperature becomes an upper limit. In case that the kind of the used ink and the kind of the used drafting medium are constant, the set temperatures for the recording head 38 and the platen 8 are constant, and temperature set data are recorded previously in the temperature control program 56.
  • the set temperatures of the recording head 38 and the platen 8 are variable, and the set temperatures may be input with key from an operation panel 58. Furthermore, in this case, the set temperatures from a host computer 60 is input in a RAM 62 of the controller.
  • the feed roller 22 makes an intermittent rotation in clock direction in FIG. 1 by a X drive unit 63, and the paper 40 shifts in right direction over the platen 8.
  • the Y cursor or carriage 36 is reciprocally driven in a direction perpendicular to the surface of the paper in FIG. 1 along the Y rail 18 by a Y drive unit 64. More-over, vector data to be transmitted from the host computer 60 is delivered to the RAM 62 through an interface (I/F) having FIFO buffering function.
  • I/F interface
  • a CPU 66 of the ink jet printer applies pre-processing (data analysis) such as division process, sort process with a band width and block width which are preset against the vector data stored in the RAM 62 on the basis of a program stored in the ROM 54, and arranges the vector data contained in each block of each band to a mode of an intermediate code (for example, vector data).
  • An image processor 68 applies a DDA (digital different analysis) process sequentially to the image data of the intermediate code mode stored in the RAM 62, and developes the raster data to bit map memory 70.
  • DDA digital different analysis
  • the raster data developed in the bit map memory 70 are converted to CMYK data (black K, cyan C, magenta M, yellow Y or data for printing according to Euro scale) from RGB color data (red, green blue).
  • CMYK data black K, cyan C, magenta M, yellow Y or data for printing according to Euro scale
  • RGB color data red, green blue
  • the CPU 66 sequentially sends the raster data converted to the CMYK data to a head drive unit 70.
  • the ink is supplied to the recording head 38 by means of an ink supply drive unit 72, and the recording head 38 discharges ink droplets by the control of the head drive unit 70 to perform a drafting or printing on the paper 40.
  • the present invention is constructed as described in the foregoing whereby the drafting quality can be improved.

Landscapes

  • Ink Jet (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Handling Of Sheets (AREA)
EP00108345A 1999-04-16 2000-04-14 Imprimante à jet d'encre et procédé de son opération Withdrawn EP1044817A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11109789A JP2000296607A (ja) 1999-04-16 1999-04-16 インクジェットプリンタ
JP10978999 1999-04-16

Publications (2)

Publication Number Publication Date
EP1044817A2 true EP1044817A2 (fr) 2000-10-18
EP1044817A3 EP1044817A3 (fr) 2001-01-17

Family

ID=14519271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00108345A Withdrawn EP1044817A3 (fr) 1999-04-16 2000-04-14 Imprimante à jet d'encre et procédé de son opération

Country Status (4)

Country Link
EP (1) EP1044817A3 (fr)
JP (1) JP2000296607A (fr)
KR (1) KR20000071547A (fr)
CN (1) CN1270890A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056703A1 (de) * 2000-11-15 2002-06-13 Technoplot Cad Vertriebs Gmbh Tintenstrahldrucker und Tintenstrahldruckverfahren zum Drucken mit Lactat-Tinten
US6679640B2 (en) 2001-01-08 2004-01-20 Vutek, Incorporated Printing system web guide coupling assembly
WO2004094150A1 (fr) * 2003-04-18 2004-11-04 Mimaki Engineering Co., Ltd. Imprimante a jet d'encre
US6857803B2 (en) * 2001-01-08 2005-02-22 Vutek, Inc. Printing system web guide with a removable platen
EP1533129A1 (fr) * 2003-11-21 2005-05-25 Xerox Corporation Dispositif de chauffage de substrat
CN101734019B (zh) * 2003-04-18 2012-09-19 御牧高科技股份有限公司 喷墨打印机
US10071568B2 (en) 2014-05-14 2018-09-11 Mimaki Engineering Co., Ltd. Inkjet printer

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3839316B2 (ja) * 2001-12-25 2006-11-01 武藤工業株式会社 インクジェット記録装置
JP2006192779A (ja) * 2005-01-14 2006-07-27 Noritsu Koki Co Ltd 記録媒体処理装置
JP2008044708A (ja) * 2006-08-14 2008-02-28 Oki Electric Ind Co Ltd 紙葉類分離繰出機構
WO2008128377A1 (fr) * 2007-04-18 2008-10-30 Chunhui Luo Méthode d'impression par jet d'encre et appareil associé
US7828423B2 (en) * 2007-07-05 2010-11-09 Xerox Corporation Ink-jet printer using phase-change ink printing on a continuous web
JP5067878B2 (ja) * 2008-05-23 2012-11-07 株式会社セイコーアイ・インフォテック インクジェットプリンタ
JP4889059B2 (ja) * 2009-11-09 2012-02-29 株式会社ミマキエンジニアリング インクジェットプリンタ
JP5448973B2 (ja) * 2010-03-30 2014-03-19 富士フイルム株式会社 画像形成装置
JP2013154612A (ja) * 2012-01-31 2013-08-15 Seiko Epson Corp 液体噴射装置
US8743163B2 (en) * 2012-03-16 2014-06-03 Kodak Alaris Inc. Printing method for reducing printer artifacts
JP6059742B2 (ja) * 2015-01-27 2017-01-11 武藤工業株式会社 インクジェットプリンタのインク乾燥装置
JP6596834B2 (ja) * 2015-02-10 2019-10-30 セイコーエプソン株式会社 記録装置
US9815296B2 (en) * 2015-11-18 2017-11-14 Heidelberger Druckmaschinen Ag Method for controlling the temperature of a sheet in a printing machine
DE102018205254A1 (de) * 2017-05-11 2018-11-15 Heidelberger Druckmaschinen Ag Digitaldruckmaschine mit einer Temperiereinrichtung für Bogen
JP6988164B2 (ja) * 2017-05-19 2022-01-05 セイコーエプソン株式会社 印刷装置
JP6973011B2 (ja) * 2017-12-14 2021-11-24 コニカミノルタ株式会社 インクジェット記録装置
JP7074297B2 (ja) * 2019-11-15 2022-05-24 株式会社ミヤコシ 印刷装置
CN111746146A (zh) * 2020-07-24 2020-10-09 广州九岳天装饰工程有限公司 一种手持喷码机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04263949A (ja) 1990-10-19 1992-09-18 Hewlett Packard Co <Hp> インクジェットプリンタ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06206311A (ja) * 1993-01-12 1994-07-26 Seiko Instr Inc バブルジェットプリントヘッド
JP3162892B2 (ja) * 1993-11-15 2001-05-08 キヤノン株式会社 液体噴射記録装置及び該装置におけるヘッド温度制御方法
US5797329A (en) * 1995-05-16 1998-08-25 Dataproducts Corporation Hot melt ink printer and method printing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04263949A (ja) 1990-10-19 1992-09-18 Hewlett Packard Co <Hp> インクジェットプリンタ

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056703A1 (de) * 2000-11-15 2002-06-13 Technoplot Cad Vertriebs Gmbh Tintenstrahldrucker und Tintenstrahldruckverfahren zum Drucken mit Lactat-Tinten
DE10056703C2 (de) * 2000-11-15 2002-11-21 Technoplot Cad Vertriebs Gmbh Tintenstrahldrucker mit einem Piezo-Druckkopf zum Ausstoßen von Lactat-Tinte auf ein unbeschichtetes Druckmedium
US6530657B2 (en) 2000-11-15 2003-03-11 Technoplot Cad Vertriebs Gmbh Ink jet printer with a piezo printing head for ejecting lactate ink onto an uncoated printing medium
US6679640B2 (en) 2001-01-08 2004-01-20 Vutek, Incorporated Printing system web guide coupling assembly
US6857803B2 (en) * 2001-01-08 2005-02-22 Vutek, Inc. Printing system web guide with a removable platen
WO2004094150A1 (fr) * 2003-04-18 2004-11-04 Mimaki Engineering Co., Ltd. Imprimante a jet d'encre
US8162470B2 (en) 2003-04-18 2012-04-24 Mimaki Engineering Co., Ltd. Inkjet printer
CN101734019B (zh) * 2003-04-18 2012-09-19 御牧高科技股份有限公司 喷墨打印机
US8444262B2 (en) 2003-04-18 2013-05-21 Mimaki Engineering Co., Ltd. Inkjet printing system
EP1533129A1 (fr) * 2003-11-21 2005-05-25 Xerox Corporation Dispositif de chauffage de substrat
JP2005153526A (ja) * 2003-11-21 2005-06-16 Xerox Corp 多段転写前被印刷体加熱アセンブリとそれを備えたインク画像生成装置
US10071568B2 (en) 2014-05-14 2018-09-11 Mimaki Engineering Co., Ltd. Inkjet printer

Also Published As

Publication number Publication date
EP1044817A3 (fr) 2001-01-17
KR20000071547A (ko) 2000-11-25
JP2000296607A (ja) 2000-10-24
CN1270890A (zh) 2000-10-25

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