EP2093067A2 - Imprimante dotée d'une tête d'éclairage - Google Patents

Imprimante dotée d'une tête d'éclairage Download PDF

Info

Publication number
EP2093067A2
EP2093067A2 EP09007261A EP09007261A EP2093067A2 EP 2093067 A2 EP2093067 A2 EP 2093067A2 EP 09007261 A EP09007261 A EP 09007261A EP 09007261 A EP09007261 A EP 09007261A EP 2093067 A2 EP2093067 A2 EP 2093067A2
Authority
EP
European Patent Office
Prior art keywords
lamp
exposure head
reflectors
printer according
printer
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
EP09007261A
Other languages
German (de)
English (en)
Other versions
EP2093067B1 (fr
EP2093067A3 (fr
Inventor
Albrecht Schierholz
Dieter Stellmach
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP2093067A2 publication Critical patent/EP2093067A2/fr
Publication of EP2093067A3 publication Critical patent/EP2093067A3/fr
Application granted granted Critical
Publication of EP2093067B1 publication Critical patent/EP2093067B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2007—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using radiant heat, e.g. infrared lamps, microwave heaters
    • 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
    • B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
    • 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
    • B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
    • B41J11/00218—Constructional details of the irradiation means, e.g. radiation source attached to reciprocating print head assembly or shutter means provided on the radiation source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun

Definitions

  • the invention relates to a printer, in particular a serial printer, with an exposure head for the exposure of printed images with light-curing ink.
  • Serial printers or line printers are printers that print characters one after the other within a single line. They are inexpensive to manufacture, reliable in operation and small in size, so that they are suitable as Auftischonul. Printers of this type are widely used as type printers, dot matrix printers or as ink printers. If light-curing ink is used in an ink printer, then an exposure head guided on a carriage is required in addition to the print head, which exposes and cures the printed image after printing with high radiation intensity.
  • the printer according to the invention has an exposure head for exposure of printed images with an exposure head housing, in which a lamp is at least partially surrounded by reflectors, which emits radiation during operation, which by the reflectors is passed to a printable with light-curing ink print image plane.
  • a lamp is at least partially surrounded by reflectors, which emits radiation during operation, which by the reflectors is passed to a printable with light-curing ink print image plane.
  • the combination of the geometrically different reflectors a far greater part of the radiation emitted by the lamp in all directions is directed to the print image plane than by elliptical reflectors alone.
  • This can be achieved by arranging the planar reflectors on opposite side walls of the exposure head housing and are designed as cross reflectors.
  • the edge region which is typically formed with a lower radiation intensity with respect to the center region, is irradiated more intensely by the printing image plane.
  • the reflection surfaces of the cross reflectors are inclined relative to the main beam direction of the lamp, that the focused beam area is reinforced at the edge in the print line direction by the reflected image of the lamp in the focal plane.
  • the cross reflectors In order to increase the edge area of the illuminated print image section, it is advantageously provided that the cross reflectors, viewed from the lamp in the direction of the print image plane, run apart like a funnel. By enlarging the illuminated print image section, the residence time required to cure the ink is reduced. Therefore, the printing speed of the printer can be increased.
  • the planar reflectors are arranged on the opposite side of the lamp to the printing image plane and are designed as reflector elements. By means of these reflector elements, the radiation emitted by the lamp in the direction opposite to the printing image plane is directed onto the printing image plane. In this way, in addition to the increase of the radiation intensity on the print image plane is achieved that the heating of the exposure head housing is reduced by the radiation of the lamp.
  • the reflector elements extend in the transverse direction of the lamp, starting from the elliptical reflectors and / or cross-reflectors. Furthermore, it is preferred that the lamp is positioned in a first focal point of the elliptical reflectors. Finally, it is preferred that the elliptical reflectors, the lamp and the print image plane are arranged relative to one another in such a way that a second focal point of the elliptical reflectors is in the region of the print image plane.
  • the invention is a printer with an exposure head for exposure of printed images and a Exposure head housing provided in which a reflector is at least partially surrounded lamp is arranged, which emits radiation during operation, which is passed through the reflectors on a light-curing ink printable image plane.
  • the invention provides that a fan unit is connected via at least one air duct with the exposure head, wherein the air duct opens into a cooling air space between the reflectors and the side walls of the exposure head housing.
  • the luminous element of the lamp is located in an interior space insulated from the reflectors.
  • intensive cooling of the lighting head is achieved in the smallest space.
  • the lamp is mounted in the exposure head housing via at least one lamp socket, the lamp socket protruding into the air duct. This effectively cools the lampholder in the airflow and effectively reduces heat dissipation to the exposure head housing.
  • This air guide is particularly important when using a mercury vapor lamp with operating temperatures of about 900 ° C, to prevent the exposure head housing is thermally damaged.
  • a particularly advantageous embodiment of the invention provides that in the printer housing a blow-out for discharging heated exhaust air is provided, which is preferably arranged corresponding to the outlet opening of the air duct of the exposure head housing. This ensures that the loss heat produced in the exposure head housing by its lamp in its operation can be transported via a cooling medium such as air, for example, into the environment.
  • the invention relates to a printer, preferably a serial printer with a printer housing, in which an exposure head is mounted.
  • the exposure head is the essential component of the invention. Therefore, the figures show only the exposure head and not the printer.
  • the exposure head comprises an exposure head housing with elbows (1, 2). On the angle pieces (1, 2) a printed circuit board (3) with plug (4) and designed as a fan unit fan (10) with filter (5) are placed. Side of the two angle pieces (1, 2) identical exhaust air ducts (6, 7) are mounted, the removable segments (8, 9) have. By mutual removal of the segments (8, 9) in the exhaust air ducts (6, 7) arise output openings through which heated in the exposure head exhaust air (44) can be selectively blown on one side of the exposure head housing. At least one of these outlet openings is in fluid communication with a correspondingly provided in the printer housing discharge opening to convey the heated exhaust air from the printer, eg. In the environment.
  • the printer housing are mounted as a guide means for the exposure head and a printer head with light-curing ink slide or rails over which the exposure head and the printer head during the printing process of the printer, controlled by a drive, is moved traversing between two lateral end positions.
  • the printer housing has only one exhaust opening.
  • the discharge opening of the printer housing and the outlet opening the exhaust duct (6, 7) are arranged to each other such that the openings are in flow connection in an end position of the exposure head. In this position, the exposure head is briefly stopped during printing and the heated exhaust air is blown out of the printer housing.
  • the exposure head additionally contains elliptical reflectors (11, 12) and cross reflectors (13, 14).
  • the light exit opening is covered by a glass pane (15), which is secured by the spring elements (16, 17) lying in the beam shadow.
  • a lamp (18) of the exposure head is not shown in this view.
  • the exposure head housing is essentially formed by the two identical angle pieces (1, 2), which are firmly connected to each other.
  • two ellipse carriers (20, 21) are inserted at a distance (19), each containing two elliptical recesses (22, 23).
  • the elliptical reflectors (11, 12) are inserted from the light exit side. Since the recesses (22, 23) are only slightly wider than the thickness of the elliptical reflectors (11, 12), these have after mounting the exact calculated geometric shape on its reflector surface.
  • For mounting and power supply are designated at 24 and 25 angled inner lobes of the angle pieces (1, 2) on both sides lamp sockets (26, 27) attached.
  • a protective shield (28) which shields the scattered radiation of the lamp (18) towards the top and in addition the two inner tabs (24, 25) of the angle pieces (1, 2) against forces of socket springs (29, 30) stabilized.
  • the printed circuit board (3) with the plug (4) for the electrical supply of the exposure head is provided, which is covered by the fan (10) with the upstream air filter (5).
  • the light exit opening of the exposure head is covered with the glass pane (15) against contamination and damage.
  • the glass pane (15) is held by spring elements (16, 17), which are engaged in the radiation shadow behind an angled bend (31, 32) of the elliptical reflectors (1, 2).
  • the cooling air flow in the exposure head is three-dimensional and is shown for one side by the dashed line (44).
  • the cooling air duct is mirror-inverted.
  • the lamp (18) emits light uniformly on all sides on its cylindrical jacket. It is arranged in a first focal point (34) of the elliptical reflectors (11, 12). In a second focal point (35) is a printing image plane (40) of the printer. Above the lamp (18), the cross reflectors (13, 14) have a region (36, 37) formed as reflector elements. This is inclined to the main beam axis (38) in such a way that the reflected radiation (49) is largely radiated past the luminous element (39) of the lamp (18) in order not to unnecessarily heat it and to reflect it Use radiation (49) in addition to the exposure of the image plane (40).
  • the light radiated radially by the luminous element (39) of the lamp (18) is focused by the elliptical reflectors (11, 12) in a region (45) of the printing image plane (40) and thus by a direct comparison with the direct radiation of the lamp (18) Multiple amplified.
  • this region (45) with a higher irradiance in the direction of the longitudinal axis of the lamp (18) is only as long as the luminous element (39) of the lamp (18).
  • the longest possible exposure zone with a corresponding exposure intensity in the printing image plane (40) in the printing direction is advantageous.
  • the cross reflectors (13, 14) are inclined obliquely to the main beam direction (38) of the lamp (18) to the extent that the reflected images (46) of the filament (39) through the cross reflectors (13, 14 ) are respectively imaged on the printing image plane (40) following the area (45) produced by the elliptical reflectors (11, 12) with high light intensity.
  • the image plane is only 1 to 2 mm away from the illumination head.
  • the exposure head and the fan unit are connected to each other via an air duct, which along the Guided by 44 dashed line.
  • the air duct is guided past the luminous element (39) of the lamp (18), with the lamp socket (26, 27) protruding into the air duct.
  • This opens into a cooling air space (48) between the reflectors (11, 12, 13, 14) and the side walls of the exposure head housing and is in communication with the exhaust air duct (7, 8) in flow connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Microbiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Ink Jet (AREA)
  • Facsimile Heads (AREA)
EP09007261A 2006-01-20 2007-01-09 Imprimante dotée d'une tête d'éclairage Not-in-force EP2093067B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006003057A DE102006003057A1 (de) 2006-01-20 2006-01-20 Drucker mit einem Belichtungskopf
EP07722749A EP1976704B1 (fr) 2006-01-20 2007-01-09 Imprimante dotée d'une tête d'exposition

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP07722749A Division EP1976704B1 (fr) 2006-01-20 2007-01-09 Imprimante dotée d'une tête d'exposition
EP07722749A Division-Into EP1976704B1 (fr) 2006-01-20 2007-01-09 Imprimante dotée d'une tête d'exposition
EP07722749.4 Division 2007-01-09

Publications (3)

Publication Number Publication Date
EP2093067A2 true EP2093067A2 (fr) 2009-08-26
EP2093067A3 EP2093067A3 (fr) 2010-10-27
EP2093067B1 EP2093067B1 (fr) 2012-10-24

Family

ID=38137727

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09007261A Not-in-force EP2093067B1 (fr) 2006-01-20 2007-01-09 Imprimante dotée d'une tête d'éclairage
EP07722749A Not-in-force EP1976704B1 (fr) 2006-01-20 2007-01-09 Imprimante dotée d'une tête d'exposition

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07722749A Not-in-force EP1976704B1 (fr) 2006-01-20 2007-01-09 Imprimante dotée d'une tête d'exposition

Country Status (7)

Country Link
US (1) US8016407B2 (fr)
EP (2) EP2093067B1 (fr)
JP (1) JP5162472B2 (fr)
CN (1) CN101370668B (fr)
DE (1) DE102006003057A1 (fr)
ES (2) ES2394600T3 (fr)
WO (1) WO2007087958A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2468702A (en) * 2009-03-19 2010-09-22 Gew Ink curing apparatus with integrally formed reflector and cooling means
WO2014119500A1 (fr) * 2013-01-30 2014-08-07 京セラ株式会社 Dispositif de rayonnement lumineux et dispositif d'impression
JP6111785B2 (ja) * 2013-03-28 2017-04-12 セイコーエプソン株式会社 液体吐出装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2234966A1 (fr) 1973-06-27 1975-01-24 Behrens Joh
US20020101491A1 (en) 2001-01-30 2002-08-01 Robert Ervin Compact microwave-powered lamp, inkjet printer using this lamp, and ultraviolet light curing using this lamp

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ATE224523T1 (de) 1997-05-26 2002-10-15 Uviterno Ag Vorrichtung zum bestrahlen eines substrats mittels uv-strahlen und verfahren zum betrieb der vorrichtung
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Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2234966A1 (fr) 1973-06-27 1975-01-24 Behrens Joh
US20020101491A1 (en) 2001-01-30 2002-08-01 Robert Ervin Compact microwave-powered lamp, inkjet printer using this lamp, and ultraviolet light curing using this lamp

Also Published As

Publication number Publication date
JP2009523627A (ja) 2009-06-25
EP2093067B1 (fr) 2012-10-24
WO2007087958A3 (fr) 2007-11-15
JP5162472B2 (ja) 2013-03-13
DE102006003057A1 (de) 2007-07-26
CN101370668B (zh) 2012-11-07
EP1976704A2 (fr) 2008-10-08
US8016407B2 (en) 2011-09-13
EP2093067A3 (fr) 2010-10-27
EP1976704B1 (fr) 2012-10-24
ES2394600T3 (es) 2013-02-04
CN101370668A (zh) 2009-02-18
US20100220171A1 (en) 2010-09-02
WO2007087958A2 (fr) 2007-08-09
ES2395562T3 (es) 2013-02-13

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