US3776133A - Moistening apparatus and method for duplicator sheets - Google Patents

Moistening apparatus and method for duplicator sheets Download PDF

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Publication number
US3776133A
US3776133A US00218380A US3776133DA US3776133A US 3776133 A US3776133 A US 3776133A US 00218380 A US00218380 A US 00218380A US 3776133D A US3776133D A US 3776133DA US 3776133 A US3776133 A US 3776133A
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United States
Prior art keywords
liquid
absorbent
motor
moisture content
sheets
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Expired - Lifetime
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US00218380A
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English (en)
Inventor
G Ritzerfeld
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Individual
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Individual
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Priority claimed from DE19712103495 external-priority patent/DE2103495C3/de
Priority claimed from DE19712157225 external-priority patent/DE2157225A1/de
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D22/00—Control of humidity
    • G05D22/02—Control of humidity characterised by the use of electric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41L23/02—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by damping, e.g. by moistening copy sheets in connection with hectographic printing
    • B41L23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by damping, e.g. by moistening copy sheets in connection with hectographic printing using friction rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41L23/02—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by damping, e.g. by moistening copy sheets in connection with hectographic printing
    • B41L23/12—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by damping, e.g. by moistening copy sheets in connection with hectographic printing using absorbent pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L7/00—Apparatus for directly duplicating from hectographic originals, i.e. for obtaining copies in mirror image
    • B41L7/02—Apparatus for directly duplicating from hectographic originals, i.e. for obtaining copies in mirror image by passing original and copy-sheet or -web between rollers
    • B41L7/08—Apparatus for directly duplicating from hectographic originals, i.e. for obtaining copies in mirror image by passing original and copy-sheet or -web between rollers with means for moistening or drying

Definitions

  • ABSTRACT A liquid absorbent applicator for applying a liquid to the copy sheets of a duplicating machine, is maintained at a constant moisture content.
  • Two sensing electrodes engage the applicator and are connected with control means for a motor driving a supply means for the liquid, such as a pump or liquid elevator roller.
  • control means actuate the electric motor which drives the pump or elevator roller to increase the moisture content of the applicator to a desired constant value.
  • the control means respond to the sensing means to stop the motor and the supply of moistening liquid.
  • the present invention relates to amethod and apparatus for moistening the transported copy sheets of a rotary duplicator in which moist copy sheets are pressed against a master sheet.
  • a pump or a valve
  • the valve or the pump has to be manually operated or periodically actuated under the control of a rotary cam.
  • the actualamount of supplied liquid is either uncontrolled; or aconstant amount of liquid is supplied to the absorbent moistening pad. In both ways of operation; the actual moisture content of the. absorbent pad is not considered. If long copy sheets have to be moistened in rapid succession,
  • the applicator pads may contain an insufficient amount of liquid, and insufficiently moisten the respective copy sheets,- or sometimes have too' much liquid absorbed.
  • the first case more liquid has to be supplied by manual operation, and in the second casea valve had to be operated to reduce the amount of liquid supplied tothe applicator' pad.
  • the copy sheets are moistened too much, resulting in the transfer of a too great amount of duplicator ink from the master sheet, and a premature wearing offzof the mirror-reversed characters of the master sheet.
  • Another object of the invention isto maintain the moisture content of liquid absorbent-applicator. means constant.
  • Another object of the invention is to'obtain-uniforrnly clear printed texts on successive copy sheets by properly moistening each copy sheet.
  • Another object of the invention is to regulate. the amount of liquid supplied. to absorbent applicator means in accordance with the moisture content of the absorbent applicator determined by sensing the mois-' ture content.
  • the moistening method of the invention comprises electrically sensing the moisture content of a liquid absorbent pad when the pad transfers absorbed liquid to duplicator copy sheets; and automatically supplying under the control of the sensing means, a replenishing liquid to the pad when the sensed moisture content-is insufficient. In this manner, a substantially constant moisture content is maintained in the absorbent pads.
  • An apparatus comprises applicator means including a, liquid absorbent means, such as a felt pad; sensing means, preferably including two sensing electrodes for sensing the moisture content of the absorbent means; motor means; control means controlled by the sensing means; and supply means such as a pump, or an elevator roller partly immersed in a liquid, driven by the motor-means for supplying liquid to the absorbent means.
  • applicator means including a, liquid absorbent means, such as a felt pad; sensing means, preferably including two sensing electrodes for sensing the moisture content of the absorbent means; motor means; control means controlled by the sensing means; and supply means such as a pump, or an elevator roller partly immersed in a liquid, driven by the motor-means for supplying liquid to the absorbent means.
  • the absorbent means supplies the moistening liquid to successiveiiiiplicator copy sheetsso that the moisture content of the absorbent means is decreased bytransfer of the liquid to the sheets.
  • the control means respond to the sensed moisture content to start the motor means so that the supply means, for example the motor driven pump, supplies the liquid to the absorbent means. Consequently, the sensed moisture content cannot decrease below a predetermined minimum, and on the other hand, when the moisture content becomes too high, which may cause dripping, the control means respond to a signal from the sensing means to stop the motor and thereby the liquid supply means.
  • a container contains a moistening liquid at a constant level, andan elevator roller, partly immersed in the liquid, is drivenby the motor to raise the liquid to the level of a transfer roller which transfers the liquid to an absorbent applicator, pad.
  • the applicator pad either directly cooperates with the duplicator copy sheets, or transfers liquid to a transporting roller by which the duplicator copy sheets are transported sothat liquid is transferred by the transporting roller to the duplicator copy sheets.
  • the applicator pad is advantageotisly made of an absorbentfelt consisting of wool fibers.
  • FIG. 1 is a side elevation, partially in section, illustrating a rotary duplicator with one side wall omitted, and including a diagrammatic illustration of the circuit of the apparatus of the invention
  • FIG. 2 is a cross-sectional view illustrating applicator means in accordance with one embodiment of the invention
  • FIG. 3 is an enlarged sectional view taken on line C-D in FIG. 2;
  • FIG. 4 is a fragmentary cross-sectional view illustrating the driving connection between the motor and the pump in'the embodiment of FIG. 1;
  • FIG. 5 is a sectional view taken on line E-F in FIG.
  • FIG. 6 is a sectional view corresponding to FIG..2, but illustrating the applicator means cooperating with the transporting roller for duplicator copy sheets;
  • FIG. 7 is a side elevation, partially in section, illustrating a duplicating machine provided with a second embodiment of the invention, with one side wall omitted, and including a diagrammatic illustration of the circuit of the apparatus according to the invention;
  • FIG. 8 is a sectional view illustrating a detail of the embodiment of the invention shown in FIG. 7 on an enlarged scale.
  • FIG. 9 is an enlarged sectional view illustrating a portion of FIG. 9, and including a diagrammatic illustration of the circuit of the invention.
  • a duplicator drum 1 is rotated on a shaft 1a by a motor, not shown, through a one revolution clutch, not shown, in the usual manner,
  • Duplicator machines of this type are known and described, for example, in my US. Pat. Nos. 2,868,116 and 3,283,701.
  • the moistening device 20 with the applicator pad 21 is shown in FIG. 1 in a position turned'by a linkage 20a to a position in contact with the top surface of a duplicator sheet 18 for moistening the same while it is transported by the transporting rollers 55, 64 1 towards the printing plane AB.
  • the flow of the liquid to the absorbent applicator pad 21, which is held in an insulating container 33, is supplied by a supply pump driven by a motor 22.
  • Pump 23 sucks through an inlet conduit 24, the moistening liquid from a reservoir or container, not shown, and discharges the liquid through the outlet conduit 25to aspray pipe 26 which has radial holes through which the liquid is sprayed in container portion 33a toward the absorbent applicator pad 21, as best seen in FIG. 2.
  • the absorbent applicator pad 21 preferably consists of a felt made of wool fibers.
  • sensing means including spaced electrodes 27, 28 are used, which are insulated by a non-conductive wall 43 from the conductive parts of the device 20. Insulating sleeves 44 and 45 envelop the connector wires leading to the electrodes 27 and 28.
  • a switch 31 is connected with a source of ,voltage, as shown in FIG. 3, and also connected to the motor 22, and to an electronic control means 29.
  • An adjustable potentiometer 32 is connected in series with the other sensing electrode 28. The voltage is transformed in control means 29 to a lower voltage required for the circuit 27, 28, 29, 32.
  • the electronic control means 29 When a predetermined minimum current is reached, the electronic control means 29 generates a starting pulse for motor 22 which then operates pump 23 to moisten the absorbent applicator 21 with the liquid until the pad 21 is again sufi'lciently saturated. If the applicator pad becomes too moist, the electronic control means 29 generates a pulse by which the motor 22 is disconnected.
  • Switch 31 is operated when the main switch of the duplicating machine is actuated, and starts motor 22 with pump 23 if the applicator pad 21 is dried out so that even after a prolonged standstill of the duplicating machine, the applicator pad 21 is applied with the required amount of liquid so that even the first fed duplicator sheet 18 is properly moistened.
  • the potentiometer 32 is manually operated, and adds its variable re- I sistance to the resistance between the electrodes 27 and 28.
  • the amount of liquid supplied to the absorbent applicator pad 21 can be regulated by varyingthe resistance of potentiometer 32 in such a manner that motor 22 starts at different selected resistances so that an individual amount of liquid, dependent on different absorbent properties of the paper of which the sheet 18 are made, can be supplied to the applicator pad 21.
  • a container 33, and a closure 33a form a space in which the applicator pad 21 is held.
  • FIGS. 4 and 5 illustrate a driving connection between the motor 22 and the pump 23 which is schematically shown in FIG. 1.
  • Pump 23 is shown in FIG. 4 to be a membrane pump.
  • an-angular flange 47 is secured as best seen in FIG. 5, and has a portion with a slot 48- in which a slide M11249, is mounted for adjustment, and is articulated to a link 50 whose end is pivotally connected'with a member51 guided in a bore 56 of the pump housing 52 of the membrane pump 23.
  • thezstroke of .member- 51 and of the'membrane 53' can be increased or decreased so that the amount of liquid transported by the pump 23 can be adjusted.
  • FIG. 6 illustrates an applicatordevice which fully corresponds to the applicator device20 described .with reference to FIGS. 1 to 3, butthe applicator'pad 21 is not in contact with the duplicator copy. sheet 18:38 shown in FIG. 1, but in sliding contactwithxthe rotary transporting roller 55 which cooperates with alarger transporting roller 64 to transport the duplicatorsheets 18.
  • liquid from the applicator; pad.2l;-is. transferred by transporting roller 5S to the-surface of the. duplicator sheets transported by transporting rollers 55, 64.
  • the moistening device includes an absorbentapplicator pad 21 cooperating with transporting roller 23- which corresponds to roller 23 in FIG. 6.
  • Applicator pad 21 is held between insulating walls 43, 43a secured to container 33.
  • a closure 33b closes container 33 which is filled with a liquid to a predetermined level maintained by overflow openings, as shown in FIG. 7.
  • the moistening device 20' is turned to a position in which applicator pad 21 is in contact -withzthes transfer and transporting roller 23while the moistening device 205 is tilted rearward with reference to the free end of the applicator pad'21, so that no drops of the-supplied liquid can fall onto the transfer roller23 during the moist-. ening operation, as required for theproductionof a clearimprint. An excess'amountof liquidin the appli.--
  • cator pad 21 may flow through. the openings, not shown, in the adjacent side wall into container'33.
  • the applicator pad 21 is held between thenonconductive insulating parts or. walls 43, 43a.
  • Aspring 62 presses insulating part 43 and applicator pad 21 against transporting roller 23, while the inner end. of the applicatorpad 21 is urged by spring6llagainst a,
  • Transporting roller 23 further transfers liquid from the applicator pad 21- so that a duplicator sheet 18 transported between rollers 23 and 64 is moistened. Consequently,.roller 23 has two functions, namely moistening the copy sheet 18, and transporting the copy sheet 18 to the printing line AB of the duplicator.
  • the insulated electrodes 27 and 28 engage spaced portion of the applicator-pad 21.
  • a switch 31 is connected in series with a source of voltage and with control means 29, which is connected with electrode 28 by potentiometer 32 and controls motor 22.
  • the control means 29 which includes an amplifier for supplying current for drive motor-22. If .the applicator pad 21 is highly saturated with liquid, the resistance between electrodes 27 and 28 is low, and a strong current flows which effects a disconnection of 7 motor 22 by the electronic control means-29. If more duplicator sheets 18 are fed and moistened, the applicator pad 21 becomes dry, the moisture content is reduced, and the resistance between sensing electrodes 27, 28 is increased so that a smaller current flows.
  • control means 29 When a predetermined minimum current is obtained, the control means 29 generates a starting impulse for motor 22 which then drives through shaft 63 the elevator roller 26 so that liquid is supplied through transfer roller 60 to the applicator pad 21 until the same. is sufficiently saturated, and the sensing electrodes 27,28 sense a maximum current and cause control means 29 to stop motor 22.
  • Switch 31 is operated at the same time as the main switch of the duplicator, and starts motor 23 with elevator roller 26 when the applicator pad 21 is dried out, so that even after a prolonged standstill of the duplicating machine, the applicator pad. 21 is properly moistened, so that even the first duplicator sheet 18 is sufficiently moistened for obtaining a clear imprint from the master sheet 17.
  • the manually operated potentiometer 32 regulates the flow of liquid supplied to the absorbent applicator pad.21- varyingthe predetermined resistance between the electrodes 27 and 28, so that motor 22 also starts at different resistances between electrodes 27, 28 whereby individual amounts of liquid can be transferred to the duplicator sheets 18, depending on differentproperties of the used duplicator sheets 18.
  • the elevator roller 26 and the transfer roller 60 constitute supply means driven from motor 22 to supply liquid to ,the liquid absorbent applicator pad 21 of the applicator means, which may either directly moisten the duplicator sheets 18, or moisten the transporter roller 55 which transfers the liquid to the duplicator sheets.
  • the speed of the motor 23 and of the respective supply means 23, 25, 26 or 26a, 60 depends on the resistance of the portion of the applicator pad 21 between the sensing electrode 27 and 28, the resistance being dependent on the moisture content of the absorbent applicator pad 21.
  • Moistening apparatus for duplicator sheets comprising, in combination, applicator means including a liquid absorbent means, and adapted to apply a moistening liquid to successive duplicator sheets so that the moisture content of said absorbent means is decreased by transfer of said liquid to the sheets; sensing means for sensing the moisture content of said absorbent means; motor means; control means controlled by said sensing means to start and stop said motor means depending on the sensed moisture content of said absorbent means; and movable supply means for said liquid driven by said motor means for supplying said liquid to said absorbent means when the sensed moisture content decreases below a predetermined minimum so that the sheets are maintained at a substantially constant moisture content.
  • Duplicator moistening apparatus for moistening duplicator copy sheets comprising, in combination, applicator means including a liquid absorbent means, and adapted to apply a moistening liquid contained in said absorbent means to successive duplicator sheets so that the moisture content of said absorbent means is decreased-by transfer of said liquid to said duplicator copy sheets, said absorbent means having an electric resistance dependent on the moisture content thereof; sensing means including two spaced electrodes in contact with said absorbent means for sensing the resistance of the portion of said absorbent means for sensing the resistance of the portion of said absorbent means between said two spaced electrodes; motor means; control means controlled by said sensing means depending on the resistance and the moisture content of said portion of said absorbent means to start and stop said motor means when said moisture content is a predetermined minimum and maximum, respectively; and movable supply means for said liquid driven by said motor means to supply said liquid to said absorbent means when the sensed moisture content decreases below said predetermined minimum, and to stop with said motor meanswhenthe moisture content is increased to said predetermined maximum whereby
  • control means are'elec tronic control means; and wherein said motor rrieans includes an electric motor connected with and started and stopped, respectively, by said electronic control means when the current flowing between said electrodes is a predetermined minimum and maximum current, respectively, due to reduced and increased moisture content, respectively, and correspondingly increased and reduced resistance, respectively, of said portion of said absorbent means.
  • said supply means include a means-for spraying the moistening liquid onto said absorbent means; and a pump driven by said motor means for pumping said liquid to-said spraying means.
  • Apparatus as claimed in claim 2 wherein said applicator means include insulating container means supporting said absorbent means and said sensing means; and wherein said supply means are at least partly located in said container means for supplying liquid to said absorbent means.
  • said absorbent means includes an absorbent pad in contact with transported sheets; and comprising transporting roller means for transporting the sheets.
  • Apparatus as claimed in claim 2 wherein said applicator means include a transporting roller for transporting the sheets while rolling on the surface of the sheets, and wherein said absorbent means include an absorbent pad slidingly abutting said transporting roller so that said transporting roller is moistened by said liquid and transfers said liquid to the sheets.
  • said supply means include a pump driven by said motor means for pumping said moistening liquid onto said absorbent means when the sensed moisture content is insufficient.
  • said supply means include a container for said moistening liquid, an elevator roller partly immersed in the liquid in said container, and a transfer roller in rolling contact with said elevator roller and in sliding contact with said absorbent means; and wherein said motor drives said elevator roller when the sensed moisture content of the absorbent means is insufficient.
  • said transfer roller and the part of said absorbent 7 means engaged by'said transfer roller, and includes means for maintaining a pre-determined highest level of said moistening liquid in said container so that said absorbent means and said transfer roller are located above said constant level.
  • said motor means includes an electric motor, and circuit means connecting said motor with said control means; and a variable resistor in said circuit means for adjusting the maximum and minimum currents supplied to said control means for stopping and starting said'motor.
  • circuit means include a switch for stopping and starting said motor by disconnecting and connecting, respectively, said motor from and to a source of voltage.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Coating Apparatus (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US00218380A 1971-01-18 1972-01-17 Moistening apparatus and method for duplicator sheets Expired - Lifetime US3776133A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19712103495 DE2103495C3 (de) 1971-01-18 1971-01-18 Vorrichtung zur Dosierung der Menge des einem Feuchtfilz zuzuführenden Feuchtmittels
DE19712157225 DE2157225A1 (de) 1971-11-13 1971-11-13 Rotationsvervielfaeltiger zum abdrucken abdruckfaehiger druckformen

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US3776133A true US3776133A (en) 1973-12-04

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US00218380A Expired - Lifetime US3776133A (en) 1971-01-18 1972-01-17 Moistening apparatus and method for duplicator sheets

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US (1) US3776133A (de)
AT (1) AT323769B (de)
CH (1) CH536722A (de)
ES (1) ES398801A1 (de)
FR (1) FR2122882A5 (de)
GB (1) GB1339310A (de)
IT (1) IT949658B (de)
NL (1) NL7200322A (de)
SE (1) SE399530B (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002117A (en) * 1974-08-02 1977-01-11 Gerhard Ritzerfeld Rotary copying machine
US4064804A (en) * 1975-06-26 1977-12-27 Addressograph Multigraph Corporation Duplicator and method of duplicating
US4394431A (en) * 1978-12-12 1983-07-19 Canon Kabushiki Kaisha Method for developing an electrostatic latent image with a liquid developer
US4596190A (en) * 1983-07-08 1986-06-24 Rohm Gmbh Method for concurrently forming and hot-transfer printing a synthetic resin
US5264899A (en) * 1992-10-21 1993-11-23 Xerox Corporation Sheet moisture replacement system using porous rolls
US5797318A (en) * 1996-09-17 1998-08-25 Dahlgren Usa, Inc. Liquid applicator for cut sheets
US5826509A (en) * 1995-10-18 1998-10-27 Deneka; P. Kenneth Printing coating head device
US20030161963A1 (en) * 2002-02-26 2003-08-28 Heink Philip Jerome Appartus and method of using motion control to improve coatweight uniformity in intermittent coaters in an inkjet printer
US20030160835A1 (en) * 2002-02-27 2003-08-28 Barry Raymond Jay System and method of fluid level regulating for a media coating system
US20030165630A1 (en) * 2002-02-28 2003-09-04 Baker Ronald Willard System and method of coating print media in an inkjet printer

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2118517A (en) * 1936-05-22 1938-05-24 Miehle Printing Press & Mfg Dampening mechanism for printing presses
US2745340A (en) * 1951-01-22 1956-05-15 Ritzerfeld Wilhelm Moisture control device for rotary duplicating machines
US3000349A (en) * 1958-08-13 1961-09-19 Ritzerfeld Wilhelm Duplicator moistening device
US3016822A (en) * 1958-09-23 1962-01-16 Ritzerfeld Wilhelm Moistening device for duplicating machines
US3195816A (en) * 1962-03-13 1965-07-20 Richard H Mercer Low-voltage sprinkler control system
US3499383A (en) * 1968-02-19 1970-03-10 Harris Intertype Corp Dampening system for lithographic printing press
US3555289A (en) * 1968-09-09 1971-01-12 Ford Motor Co Windshield wiper energization system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2118517A (en) * 1936-05-22 1938-05-24 Miehle Printing Press & Mfg Dampening mechanism for printing presses
US2745340A (en) * 1951-01-22 1956-05-15 Ritzerfeld Wilhelm Moisture control device for rotary duplicating machines
US3000349A (en) * 1958-08-13 1961-09-19 Ritzerfeld Wilhelm Duplicator moistening device
US3016822A (en) * 1958-09-23 1962-01-16 Ritzerfeld Wilhelm Moistening device for duplicating machines
US3195816A (en) * 1962-03-13 1965-07-20 Richard H Mercer Low-voltage sprinkler control system
US3499383A (en) * 1968-02-19 1970-03-10 Harris Intertype Corp Dampening system for lithographic printing press
US3555289A (en) * 1968-09-09 1971-01-12 Ford Motor Co Windshield wiper energization system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002117A (en) * 1974-08-02 1977-01-11 Gerhard Ritzerfeld Rotary copying machine
US4064804A (en) * 1975-06-26 1977-12-27 Addressograph Multigraph Corporation Duplicator and method of duplicating
US4394431A (en) * 1978-12-12 1983-07-19 Canon Kabushiki Kaisha Method for developing an electrostatic latent image with a liquid developer
US4596190A (en) * 1983-07-08 1986-06-24 Rohm Gmbh Method for concurrently forming and hot-transfer printing a synthetic resin
US5264899A (en) * 1992-10-21 1993-11-23 Xerox Corporation Sheet moisture replacement system using porous rolls
US5826509A (en) * 1995-10-18 1998-10-27 Deneka; P. Kenneth Printing coating head device
US5988064A (en) * 1995-10-18 1999-11-23 Deneka; P. Kenneth Printing coating head device
US5797318A (en) * 1996-09-17 1998-08-25 Dahlgren Usa, Inc. Liquid applicator for cut sheets
US20030161963A1 (en) * 2002-02-26 2003-08-28 Heink Philip Jerome Appartus and method of using motion control to improve coatweight uniformity in intermittent coaters in an inkjet printer
US6706118B2 (en) 2002-02-26 2004-03-16 Lexmark International, Inc. Apparatus and method of using motion control to improve coatweight uniformity in intermittent coaters in an inkjet printer
US20030160835A1 (en) * 2002-02-27 2003-08-28 Barry Raymond Jay System and method of fluid level regulating for a media coating system
US20030165630A1 (en) * 2002-02-28 2003-09-04 Baker Ronald Willard System and method of coating print media in an inkjet printer
US6955721B2 (en) 2002-02-28 2005-10-18 Lexmark International, Inc. System and method of coating print media in an inkjet printer

Also Published As

Publication number Publication date
ES398801A1 (es) 1974-08-16
NL7200322A (de) 1972-07-20
SE399530B (sv) 1978-02-20
CH536722A (de) 1973-05-15
GB1339310A (en) 1973-12-05
AT323769B (de) 1975-07-25
FR2122882A5 (de) 1972-09-01
IT949658B (it) 1973-06-11

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