EP0461118A1 - Device for conveying pages in an ink printer. - Google Patents
Device for conveying pages in an ink printer.Info
- Publication number
- EP0461118A1 EP0461118A1 EP90902147A EP90902147A EP0461118A1 EP 0461118 A1 EP0461118 A1 EP 0461118A1 EP 90902147 A EP90902147 A EP 90902147A EP 90902147 A EP90902147 A EP 90902147A EP 0461118 A1 EP0461118 A1 EP 0461118A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printed
- sheet
- rollers
- recording sheet
- ink
- 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
Links
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
- B41J11/007—Conveyor belts or like feeding devices
Definitions
- the invention relates to a device for transporting recording sheets in an ink printer.
- the invention is therefore based on the object of specifying a device for transporting recording sheets in an ink printer, in which smearing of the printed image information is prevented, the construction and energy consumption of which is particularly suitable for small battery-operated ink printers and a secure storage of the recording sheets guaranteed.
- this object is achieved by a device of the type mentioned at the outset with a pair of conveying rollers arranged directly below the printing zone of an ink printing unit for transporting the recording sheet to be printed in each case past the ink printing unit and with the printed recording sheet on its lower sheet edge immediately after Leaving the pair of gripping devices gripping and conveying out of the pressure zone into a storage position.
- the gripping device grips the recording sheet at its lower sheet edge, contact with the printed side of the recording sheet is avoided, so that even with a recording sheet which is completely, that is to say without restricting the printing area, blurring of the printed image is avoided.
- the gripping device ensures that the recording sheet is guided securely out of the Printing zone reached to the storage position, so that the printed recording sheets are placed in the storage position with high security.
- the gripping device is set in motion each time after printing on a recording sheet in response to a form feed signal in order to convey the recording sheet to the storage position.
- the gripping device can have its own drive, which is started with the side feed signal.
- the gripping device can be coupled to the pair of conveyor rollers by a clutch which can be controlled as a function of the side feed signal.
- the gripping device consists of at least one belt guided over two deflecting rollers with an external gripping hook.
- This conveyor belt-like gripping device is characterized by a minimal expenditure of parts and enables the transport of the recording sheet in the area between the two deflection rollers, of which one lower deflection roller is arranged in the area of the printing zone of the ink printing unit and the other upper deflection roller is arranged in the area of the storage position.
- the upper of the two deflection rollers is preferably arranged at an elevated level relative to the storage position, the storage position, seen in the direction of rotation of the upper deflection roller, being immediately behind it, so that the printed support drawing sheet is lifted from the gripping hook over the upper deflection roller and falls into the lower storage position without being able to fall out of it again.
- the lower of the two deflection rollers is preferably loosely seated on an axis common to a conveyor roller of the pair of conveyor rollers, the coupling being a driving clutch.
- a contact surface for the recording sheets to be printed is formed in the printing zone and that at least one belt is guided in sections in a groove-like recess of the contact surface.
- FIGS 1 and 2 of the drawing is shown in two different operating states.
- Figures 1 and 2 show the parts of an ink printer essential for explaining the invention in longitudinal section.
- Recording sheets 1 to be printed individually are stored as sheet stacks 2 in a storage cassette 3 which is inserted in an inclined position in a housing part 4 of the ink printer, which is only partially visible here.
- the sheet stack 2 is resiliently attached in the bottom area of the storage cassette 3.
- support plate 5 pressed against a drivable sheet separating roller 6, which serves to pull the top recording sheet 1 from the sheet stack 2 and to transport it between two adjacent rollers 7 and 8, which, viewed in the direction of conveyance 9 of the sheet separating roller 6, on the Connect storage cassette 3.
- the rollers 7 and 8 serve to deflect the recording sheet 1 into a guide trough 10 which is formed in the bottom region of the housing part 4 and which guides the recording sheet 1 upwards through a guide element 11 into the feed gap of a pair of conveyor rollers 12 and 13.
- the pair of conveyor rollers 12 and 13 is arranged immediately below the printing zone 14 of an ink printing unit 15 and serves to lead the recording sheet 1 past the ink printing unit 15 at a defined line feed speed upwards through the printing zone 14, during which the recording sheet 1 is removed from the ink printing unit 15 is printed.
- the conveyor roller pair 12 and 13 is driven by a drive, not shown here, at a uniform rotational speed in the direction of rotation denoted by 16.
- the recording sheet 1 to be printed lies flat against a contact surface 17 at a defined distance from the ink printing unit 15, so that a uniform print image is produced on the recording sheet 1.
- a gripping device 20 is used in Fo_.m from two belt drives spaced apart from one another in the viewing direction by a distance that is smaller than the width of the recording sheet 1, of which only the front one is visible.
- This consists of a belt 21, which is guided over two deflection rollers 22 and 23 and has an external extension in the form of a gripping hook 24.
- the lower deflecting roller 22 sits loosely on an axis 25 common to the conveying roller 12 and is over a controllable driving clutch 26, which is only indicated by dashed lines, as a function of a side feed signal (form feed signal) FF, can be coupled to the drive for the conveyor roller 22.
- a side feed signal form feed signal
- the belt 21 extends in sections between the two deflecting rollers 22 and 23 in a groove-like recess 27 in the contact surface 17.
- the upper deflecting roller 23 is raised in relation to the storage position 18 in the storage basket 19 arranged, which is seen in the direction of rotation of the deflection roller 23 immediately behind it.
- a recording sheet 1 to be printed is pulled off the sheet stack 2 by driving the sheet separating roller 6 and is guided between the rollers 7 and 8 along the guide trough 10 and the guide element 11 into the feed nip of the conveyor roller pair 12, 13.
- the pair of conveyor rollers 12, 13 conveys the recording sheet 1 at a defined line feed speed past the ink printing unit 15 printing the recording sheet 1 during this.
- the lower deflection roller 22 is decoupled from the conveyor roller 12 so that the gripping device 20 remains inactivated.
- the lower deflection roller 22 is coupled to the conveyor roller 12 via the entrainment clutch 26 activated by the side feed signal FF, so that the belt 21 is driven, with its gripping hook 24 it grips the printed recording sheet 1 at its lower sheet edge and is transported out of the printing zone 14 without coming into contact with the printed image.
- the recording sheet 1 is lifted over the deflection roller 23 and then falls into the storage position 18 in the storage basket 19.
Abstract
Dispositif de transport de feuilles dans une imprimante à l'encre. Un des problèmes inhérents à l'impression à l'encre est qu'il faut attendre un certain temps après l'impression d'une feuille pour que l'image imprimée devienne assez résistante à l'essuyage pour que le côté imprimé de la feuille puisse entrer en contact avec d'autres objets sans barbouiller le papier. Afin de transporter des feuilles nouvellement imprimées dans une imprimante à l'encre sans barbouiller l'image imprimée, une paire de rouleaux de transport (12, 13) pour transporter la feuille (1) à imprimer jusqu'au mécanisme (15) d'impression à l'encre est agencée immédiatement au-dessous de la zone d'impression (14) du mécanisme (15) d'impression à l'encre. Un dispositif de saisie (20) saisit la feuille imprimée (1) par son bord inférieur dès qu'elle a quitté la paire de rouleaux de transport (12, 13), l'enlève de la zone d'impression (14) et la transporte vers une position de sortie (18).Device for transporting sheets in an ink printer. One of the problems with ink printing is that it takes a while after a sheet is printed for the printed image to become wipe-resistant enough that the printed side of the sheet can come into contact with other objects without smearing the paper. In order to transport newly printed sheets in an ink printer without smearing the printed image, a pair of transport rollers (12, 13) for transporting the sheet (1) to be printed to the mechanism (15) of ink printing is arranged immediately below the printing area (14) of the ink printing mechanism (15). A gripping device (20) grasps the printed sheet (1) by its lower edge as soon as it has left the pair of transport rollers (12, 13), removes it from the printing area (14) and transports to an exit position (18).
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3907329 | 1989-03-03 | ||
DE3907329A DE3907329A1 (en) | 1989-03-03 | 1989-03-03 | DEVICE FOR TRANSPORTING RECORDING SHEETS IN AN INK PRINTER |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0461118A1 true EP0461118A1 (en) | 1991-12-18 |
EP0461118B1 EP0461118B1 (en) | 1993-07-14 |
Family
ID=6375739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90902147A Expired - Lifetime EP0461118B1 (en) | 1989-03-03 | 1990-02-01 | Device for conveying pages in an ink printer |
Country Status (4)
Country | Link |
---|---|
US (1) | US5248210A (en) |
EP (1) | EP0461118B1 (en) |
DE (2) | DE3907329A1 (en) |
WO (1) | WO1990009891A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR970000610B1 (en) * | 1992-06-04 | 1997-01-16 | 가부시키가이샤 테크 | Sheet delivery mechanism for a printer |
IT1257545B (en) * | 1992-06-15 | 1996-01-30 | Olivetti & Co Spa | FACSIMILE EQUIPMENT WITH INK JET PRINTER. |
US5399038A (en) * | 1993-03-18 | 1995-03-21 | Addmaster Corporation | Dual line slip printer |
US6848850B2 (en) * | 2001-10-24 | 2005-02-01 | Matsushita Electric Industrial Co., Ltd. | Recording apparatus |
US7021755B2 (en) * | 2002-09-30 | 2006-04-04 | Canon Kabushiki Kaisha | Printing apparatus |
WO2004048239A1 (en) * | 2002-11-26 | 2004-06-10 | Ricoh Company, Ltd. | Stably operable image-forming apparatus with improved paper conveying and ejecting mechanism |
US8303101B2 (en) | 2010-07-15 | 2012-11-06 | Hewlett-Packard Development Company, L.P. | Apparatus for printing on a medium |
US8449107B2 (en) * | 2010-10-04 | 2013-05-28 | Seiko Epson Corporation | Recording apparatus |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1135140A (en) * | 1909-12-23 | 1915-04-13 | Underwood Typewriter Co | Type-writing machine. |
DE2005616A1 (en) * | 1970-02-07 | 1971-08-12 | Steinhilber H | Transport control for writing and similar machines |
US4207579A (en) * | 1979-01-08 | 1980-06-10 | The Mead Corporation | Reciprocating paper handling apparatus for use in an ink jet copier |
US4340314A (en) * | 1980-06-24 | 1982-07-20 | Datamarc, Inc. | Envelope feeding apparatus |
US4431323A (en) * | 1981-08-05 | 1984-02-14 | Kulow Products, Inc. | Envelope feeder method and apparatus |
CH660171A5 (en) * | 1983-06-09 | 1987-03-31 | Ferag Ag | METHOD AND DEVICE FOR THE INTERMEDIATE STORAGE OF PRINTED PRODUCTS INCLUDING IN A DOMESTIC FLOW, LIKE NEWSPAPERS, MAGAZINES OR THE LIKE. |
US4865305A (en) * | 1983-07-25 | 1989-09-12 | Toshio Momiyama | Paper sheet feeding apparatus |
US4721968A (en) * | 1983-09-22 | 1988-01-26 | Canon Kabushiki Kaisha | Ink jet transparency-mode recorder |
IT1196758B (en) * | 1984-11-19 | 1988-11-25 | Olivetti & Co Spa | PRINT SUPPORT FEEDER FOR A WRITING MACHINE OR SIMILAR OFFICE MACHINES |
US4540298A (en) * | 1984-11-28 | 1985-09-10 | Rowan Corporation | Manually loaded envelope feeder |
SE8501917D0 (en) * | 1985-04-19 | 1985-04-19 | Fleximark Ab | FORM MARK LABELING DEVICE |
JPS63127944A (en) * | 1986-11-19 | 1988-05-31 | Minolta Camera Co Ltd | Sheet conveyor |
JP2576508B2 (en) * | 1987-06-11 | 1997-01-29 | 三菱電機株式会社 | Thermal printer |
-
1989
- 1989-03-03 DE DE3907329A patent/DE3907329A1/en not_active Withdrawn
-
1990
- 1990-02-01 WO PCT/DE1990/000070 patent/WO1990009891A1/en active IP Right Grant
- 1990-02-01 DE DE9090902147T patent/DE59001974D1/en not_active Expired - Fee Related
- 1990-02-01 EP EP90902147A patent/EP0461118B1/en not_active Expired - Lifetime
- 1990-02-01 US US07/752,538 patent/US5248210A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9009891A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1990009891A1 (en) | 1990-09-07 |
EP0461118B1 (en) | 1993-07-14 |
US5248210A (en) | 1993-09-28 |
DE59001974D1 (en) | 1993-08-19 |
DE3907329A1 (en) | 1990-09-06 |
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Legal Events
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