US3826192A - Waste ink disposal means for spray printing devices - Google Patents

Waste ink disposal means for spray printing devices Download PDF

Info

Publication number
US3826192A
US3826192A US00244492A US24449272A US3826192A US 3826192 A US3826192 A US 3826192A US 00244492 A US00244492 A US 00244492A US 24449272 A US24449272 A US 24449272A US 3826192 A US3826192 A US 3826192A
Authority
US
United States
Prior art keywords
ink
waste ink
capillary
channel
groove
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.)
Expired - Lifetime
Application number
US00244492A
Other languages
English (en)
Inventor
E Kattner
K Bork
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of US3826192A publication Critical patent/US3826192A/en
Anticipated expiration legal-status Critical
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
    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/1721—Collecting waste ink; Collectors therefor
    • 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
    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/1721—Collecting waste ink; Collectors therefor
    • B41J2/1728—Closed waste ink collectors
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/10—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by matrix printers
    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/18—Ink recirculation systems
    • B41J2/185—Ink-collectors; Ink-catchers
    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/18—Ink recirculation systems
    • B41J2/185—Ink-collectors; Ink-catchers
    • B41J2002/1853—Ink-collectors; Ink-catchers ink collectors for continuous Inkjet printers, e.g. gutters, mist suction means

Definitions

  • the discharge channel member is formed of an elongated strip of sheet material bent at several points parallel to its length and joined to the rejection shutter to form a groove along their intersecting portions which groove will exert a capillary influence on the waste ink and thereby cause it to drain to a waste ink receptacle.
  • a rejection shutter is normally provided for the reception of these drops in an area below the area where the ink would normally be received. Since this undesirable drop formation usually involves drops of larger than normal size these larger drops of ink at the beginning and end of the recording process are directed by the spray printing means onto the rejection shutter. That is, the actual recording and printing process will only be allowed to take place if the liquid jet is optimally formed.
  • a common practice where short, spaced indicia are to be printed, as for example when recording individual letters within a line, is to not interrupt the liquid jet spray at all but to deflect it onto the rejection shutter during those times during which the printing is not to take place.
  • the ink jet spray head moves along this line in generally the same position relative to the upper edge of the rejection shutter.
  • the problems of the prior art are overcome by an inexpensive and efficient means which guarantees a satisfactory draining of the waste ink which accumulates on the rejection shutter to a waste ink reciprocal.
  • a discharge channel in the form of a groove having parallel sides which exerts a capillary influence on the waste ink.
  • the groove is inclined from the horizontal and has a waste ink receptacle at its lower end into which the ink will be drawn.
  • the groove extends along the line where the images are to be printed and at a slight angle of inclination of approximately three degrees towards the waste container.
  • the groove is formed in a generally V-shaped configuration so that the surface of a liquid where it is in contact with the groove is elevated or depressed depending upon the relative attraction of the molecules of the liquid for each other and for that of the material of the groove so that a capillary action results to move the waste ink along the groove to the waste ink receptacle.
  • the collected waste ink will accumulate in drops and pass into the waste receptacle.
  • the dis charge channel which extends below the line where the images are to be recorded includes a groove having a capillary influence on the waste ink and in addition includes a vertical discharge channel arranged in the area of the waste ink container so that ink from the groove passing below the rejection shutter is conveyed by a capillary action directly to the waste ink container.
  • the vertically extending groove may be spaced a small distance from the lower end of the groove which runs below therejection shutter since the vertical discharge channel groove will attract the ink by means of capillary action and direct it to the waste container.
  • the rejection shutter may take the form of a recessed portion on a piece of flat metal with its bottom edge inclined at the same angle as the discharge channel.
  • the discharge channel is attached along this point of deformation to form a V-shaped groove which has a very high capillary action to attract excess waste ink which may be accumulated on the rejection shutter.
  • FIG. 1 is a perspective schematic illustration of a spray ink printing device having a first discharge channel slightly inclined from the horizontal and a second discharge channel generally vertically inclined whereby ink accumulating on a rejection shutter is transported by capillary action to a waste receptacle;
  • FIG. 2 is an schematic enlarged cross sectional representation taken along the lines Il-II in FIG. 1 with a ink jet spray nozzle schematically depicted directing a spray against the rejection shutter;
  • FIG. 3 is a schematic enlarged fragmentary top plan view taken substantially along the line III-Ill of FIG. 1.
  • FIG. I there may be seen the upper portion of a generally cylindrical platen means 1 which supports a sheet-like recording carrier means 2.
  • a liquid jet spray ink recording head 3 which sprays out ink against the recording carrier 2 as schematically illustrated by the line 4 is movable along a line across the width of the recording carrier 2 whereby images may be recorded on the carrier 2 by the influence of an electromagnetic field on the atomized particles of liquid ink in accordance with means known in the prior art which therefore need not be set forth in further detail here.
  • the spray is directed as schematically shown by the line 4 toward the recording carrier 2.
  • liquid spray jet recording head 3 is directed as indicated schematically by the line 4a against a rejection shutter 5 which is arranged below the area 4b where the images are to be formed on the carrier material 2.
  • the deflection of the jet spray line 4 to direct the spray against the rejection shutter 5 avoids the necessity of stopping and restarting the jet spray which stopping and starting causes undesirable spray jet drop formation and theaccompanying undesirable ink spots on the recording carrier.
  • the rejection shutter 5 may be formed as a recess in a flat metal support plate which recess includes a vertical corrugated surface 50 outwardly sloping side wall portions 5b and 5d and a downwardly sloping bottom wall portion 50.
  • the wall portion 50 is inclined from the horizontal along the length of the rejection shutter 5.
  • a discharge channel 6 is arranged below the recording area 4b and below the rejection shutter portion 5a in general alignment with the wall portion 50. We have found that inclining the discharge channel 6 and the wall portion 5c at an angle of approximately 2 /2 to 3 with respect to the horizontal provides excellent results.
  • the discharge channel 6 is formed by the lower portion 5c of the rejection shutter 5 and an elongated sheet metal strip 7 having an upper portion 7a bent away from the plane of a lower portion 7b.
  • the strip 7 is sheet metal and where the support plate 20 is metal they may be connected to each other by spot welding along the lower portion 7b of the strip 7.
  • the bend lines between the portions 5c, 20 and 7a, 7b have bend radii so that when the strip 7 is attached to a member 20 in tight face-to-face relation as shown in FIG. 2 what may be characterized as a V-shaped groove 8 is formed between the members adjacent the radii.
  • this groove exerts a very distinct capillary action on waste ink which accumulates on the rejection shutter and flows downwardly as shown by the dotted line 5e.
  • waste ink which accumulates on the rejection shutter and flows downwardly as shown by the dotted line 5e.
  • the waste ink thus flows down the groove 8 to a lower end 8a in the area of a waste ink receptacle 9 which is arranged thereunder.
  • a vertically inclined discharge channel means member 11 (FIGS. 1 and .3) is arranged in the area of the waste receptacle 9 to direct the flow directly to the waste receptacle.
  • the channel member 11 is constructed of a sheet metal strip having a first portion 1 1a bent out of the plane of a second portion 11b.
  • the strip 11 is attached to the support plate 20 by spot welding or other suitable means as set forth with respect to the strip 7 and works under the principles of capillary action providing a vertical discharge channel to the waste ink receptacle 9. Because of the very effective capillary action of the channel groove 10 the channel member 11 may be spaced from the end 8a of the groove 8 and still attract the ink flowing from the groove 8.
  • the waste ink receptacle 9 which accepts the ink from the groove 10 may be filled with cotton puffs which completely absorb the relatively small amount of waste ink. If the cotton puffs become completely saturated they may be disposed of together with the waste container 9 which may be very inexpensively manufactured.
  • Waste ink disposal apparatus for excess ink in a spray printing device comprising:
  • said channel means providing a capillary groove extending therealong inclined slightly downwardly and along which the waste ink flows toward waste ink receiving means at its lower end receptive of the ink which drains into the channel means;
  • said groove providing for capillary action between it and the waste ink to accelerate conveying the waste ink to the receiving means whereby to avoid thickening and drying of the ink in the channel means;
  • a vertical capillary channel adjacent to said lower end of said groove, said vertical channel providing for capillary influence on said waste ink to accelerate conveying said waste ink to said waste ink receiving means.
  • Waste ink disposal apparatus for excess ink in a spray printingde'vice comprising:
  • rejection shutter means adapted to receive a spray of ink-below a recording area
  • said channel means providing a capillary groove extending therealong inclined slightly downwardly and along which the waste ink flows toward waste ink receiving means at its lower end receptive of the ink which drains into the channel means;
  • said groove providing for capillary action between it and the waste ink receiving means whereby to avoid thickeningand drying of the ink in the channel means;
  • said discharge channel means comprising an elongated member having an upper portion bent out of the plane of a lower portion' along a bend line, said lower portion being tightly'connected with the rejection shutter means to form said capillary groove in V-shape at the intersection of the rejection shutter and the bend line;
  • said rejection shutter means comprising a member having a planar portion recessed therein directly below said recording area, said planar portion joined to the remainder of said member by opposite side surfaces and a bottom surface, said bottom surface providing a downwardly sloping wall paral-' leling said bend line and said intersection being at the lower edge of said sloping wall.
  • Apparatus according to claim 1 including a vertical capillary channel adjacent to said lower end of said groove, said vertical channel providing for capillary influence on said waste ink to accelerate conveying said waste ink to said waste ink receptacle.
  • rejection shutter means receiving the excess ink from said rejection shutter means in upwardly opening discharge channel means positioned below the upper edge of the rejection shutter means;

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Ink Jet (AREA)
US00244492A 1971-04-21 1972-04-17 Waste ink disposal means for spray printing devices Expired - Lifetime US3826192A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712119427 DE2119427A1 (de) 1971-04-21 1971-04-21 Vorrichtung in Tintenstrahlschreibem richtungen zum Ableiten der sogenannten Ver lusttinte

Publications (1)

Publication Number Publication Date
US3826192A true US3826192A (en) 1974-07-30

Family

ID=5805416

Family Applications (1)

Application Number Title Priority Date Filing Date
US00244492A Expired - Lifetime US3826192A (en) 1971-04-21 1972-04-17 Waste ink disposal means for spray printing devices

Country Status (3)

Country Link
US (1) US3826192A (enrdf_load_stackoverflow)
BR (1) BR7202419D0 (enrdf_load_stackoverflow)
DE (1) DE2119427A1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946405A (en) * 1974-10-29 1976-03-23 Teletype Corporation Ink jet mask
US6457188B1 (en) * 2001-03-09 2002-10-01 Thomas Henry Lindberg Water and sewage evacuation assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839721A (en) * 1973-06-27 1974-10-01 Ibm Device for retention of ink jet nozzle clogging and ink spraying

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392521A (en) * 1942-02-12 1946-01-08 Ncr Co Porous resilient printing plate
US2663257A (en) * 1951-03-22 1953-12-22 Ncr Co Printing wheel device
US2897753A (en) * 1958-01-17 1959-08-04 Leonard G Erzinger Dampening apparatus for offset process printing presses
US3060429A (en) * 1958-05-16 1962-10-23 Certificate of correction
US3373437A (en) * 1964-03-25 1968-03-12 Richard G. Sweet Fluid droplet recorder with a plurality of jets
US3570275A (en) * 1965-02-08 1971-03-16 Halbmond Teppiche Veb Apparatus for the continuous dyeing of textile webs and the like
US3611422A (en) * 1969-11-17 1971-10-05 Mead Corp Ingesting catchers for noncontacting printing apparatus
US3641588A (en) * 1970-06-10 1972-02-08 Teletype Corp Electrostatic printer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392521A (en) * 1942-02-12 1946-01-08 Ncr Co Porous resilient printing plate
US2663257A (en) * 1951-03-22 1953-12-22 Ncr Co Printing wheel device
US2897753A (en) * 1958-01-17 1959-08-04 Leonard G Erzinger Dampening apparatus for offset process printing presses
US3060429A (en) * 1958-05-16 1962-10-23 Certificate of correction
US3373437A (en) * 1964-03-25 1968-03-12 Richard G. Sweet Fluid droplet recorder with a plurality of jets
US3570275A (en) * 1965-02-08 1971-03-16 Halbmond Teppiche Veb Apparatus for the continuous dyeing of textile webs and the like
US3611422A (en) * 1969-11-17 1971-10-05 Mead Corp Ingesting catchers for noncontacting printing apparatus
US3641588A (en) * 1970-06-10 1972-02-08 Teletype Corp Electrostatic printer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946405A (en) * 1974-10-29 1976-03-23 Teletype Corporation Ink jet mask
US6457188B1 (en) * 2001-03-09 2002-10-01 Thomas Henry Lindberg Water and sewage evacuation assembly

Also Published As

Publication number Publication date
DE2119427A1 (de) 1972-10-26
DE2119427C3 (enrdf_load_stackoverflow) 1975-02-27
BR7202419D0 (pt) 1973-06-14
DE2119427B2 (enrdf_load_stackoverflow) 1974-07-11

Similar Documents

Publication Publication Date Title
US10315427B2 (en) Printing system with self-purge sediment prevention and fumes removal arrangements
US3060429A (en) Certificate of correction
CA1210640A (en) Cleaning system and method for ink jet printer
US5117244A (en) Nozzle capping device for an ink jet printhead
DE19645303C1 (de) Vorrichtung zum Bedrucken eines auf einer Kante stehenden Druckträgers
US6604673B1 (en) Filling device and method for filling balls in the apertures of a ball-receiving element
US3826192A (en) Waste ink disposal means for spray printing devices
US5805176A (en) Ink jet printer and device for insuring proper printing
US6357853B1 (en) Waste ink management
JP2002273914A (ja) インクジェットプリンタ
US10639900B2 (en) Cleaning head as well as device and method for cleaning printing heads
EP1164020A1 (en) Wiper for inkjet printers
US3641588A (en) Electrostatic printer
JP6451474B2 (ja) グラビア印刷機のドクター装置
US3694142A (en) Apparatus and methods for applying liquids to fabrics
US3946405A (en) Ink jet mask
US20070295231A1 (en) Apparatus and method for cleaning stencils employed in a screen printing apparatus
JP2020001398A (ja) セルフパージ、沈澱防止、および、ガス除去の構造を備えた印刷システム
NL1009117C1 (nl) Werkwijze en inrichting voor het stapsgewijs bedrukken van een continue materiaalbaan.
DE3937860C2 (de) Tintenstrahl-Aufzeichnungsgerät
JPH04371850A (ja) インクジェット記録装置
EP1596004B1 (de) Vorhangs-Auftragsvorrichtung
JP3055691U (ja) 製袋機における胴糊塗布装置
US20240165956A1 (en) Adhering ink absorption mechanism for wiper cleaner
JP2569483Y2 (ja) インクジェットプリンタ