EP0732210A2 - Method of ink suction in ink jet printer - Google Patents
Method of ink suction in ink jet printer Download PDFInfo
- Publication number
- EP0732210A2 EP0732210A2 EP96301187A EP96301187A EP0732210A2 EP 0732210 A2 EP0732210 A2 EP 0732210A2 EP 96301187 A EP96301187 A EP 96301187A EP 96301187 A EP96301187 A EP 96301187A EP 0732210 A2 EP0732210 A2 EP 0732210A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- ink
- suction
- jet printer
- suction amount
- head
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/1652—Cleaning of print head nozzles by driving a fluid through the nozzles to the outside thereof, e.g. by applying pressure to the inside or vacuum at the outside of the print head
- B41J2/16532—Cleaning of print head nozzles by driving a fluid through the nozzles to the outside thereof, e.g. by applying pressure to the inside or vacuum at the outside of the print head by applying vacuum only
-
- 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
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16585—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles for paper-width or non-reciprocating print heads
-
- 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
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16579—Detection means therefor, e.g. for nozzle clogging
Definitions
- the present invention relates to a method of ink suction in an ink jet printer.
- U.S. Pat. No. 4,970,535 discloses an ink jet printer, particularly a head cleaner, in which residual ink is removed from a face of a print head of the ink jet printer by using controlled fluid flow, thereby to clean the head. Though having an effect of cleaning the head face, however, the head cleaner is not effective when a nozzle disposed in the head for supplying ink gets clogged with ink residue or foreign substances.
- Another ink jet printer described in U.S. Pat. No. 5,296,876 has an apparatus for controlling the amount of ink supplied through nozzles according to a printing defect degree when the printing defect occurs. Thus, unnecessary consumption of the ink is avoidable. However, this apparatus cannot solve the nozzle clogging problem.
- a method of sucking ink by means of pumping is generally employed to open up the blocked nozzle.
- FIG. 1 An arrangement of a head, a suction cylinder, and other relating parts in a conventional ink jet printer adopting such a sucking method is schematically illustrated in FIG. 1.
- a head 11 filled with ink for performing print on a recording sheet is provided.
- the ink is expelled outside head 11 through nozzle holes (not shown) formed on the lower surface 13 of nozzles (not shown) installed inside head 11.
- head 11 When head 11 is in a standby position (non-printing position), air may flow in through the nozzle holes or the nozzle holes may be clogged or damaged with foreign substances. To prevent this, head 11 is situated at a home station (not shown) in the non-printing mode, and a cover 14 for capping the nozzle holes is disposed under the home station. From the lower portion of cover 14, a connection pipe 15, a cylinder 16, and an ink residual reservoir 21 are sequentially provided. Accordingly, ink dropped to cover 14 from the nozzle hole flows into cylinder 16 through connection pipe 15 and then into ink residual reservoir 21. Here, the ink is absorbed by an absorbing pad 22 provided inside ink residual reservoir 21.
- a reference numeral 15v denotes a first valve for preventing a backward flow which is installed in connection pipe 15 to prevent back flow of the ink.
- a suction system in the ink jet printer adopting the conventional suction method is schematically illustrated in a flowchart of FIG. 2.
- controller 24 shown in FIG. 1 when a suction key is input by a user to clear up the clogging of the nozzle in step 31, controller 24 shown in FIG. 1 generates a motor driving signal. Then, motor 18 drives piston 17 from a standby position to move back toward a position C, in step 32. Accordingly, the inside of cylinder 16 enters a low pressure state, and thus, the ink flows into cylinder 16 from head 11. Here, the ink residual within reservoir 21 does not flow upward through a discharging pipe 25 due to a second valve arranged inside the same for preventing a back flow.
- controller 24 When piston 17 reaches the position C, controller 24 generates the motor driving signal again, and piston 17 returns to the initial standby position, in step 33. Accordingly, the ink inside cylinder 16 is expelled outside cylinder 16 through discharging pipe 25 into reservoir 21. Here, the ink does not flow through connection pipe 15 due to first valve 15v.
- the present invention provides a method of adjusting a suction amount of ink in an ink jet printer by which the ink is sucked step by step according to a degree of clogging of a nozzle, thereby preventing unnecessary ink consumption and curtailing time required for ink suction.
- a method of adjusting an ink suction amount in an ink jet printer comprising the steps of: determining an ink suction amount according to a printing state; and sucking the ink from a head according to the determination.
- FIG. 3 Although there may be various structures for performing a method according to the present invention, an embodiment of the present invention will be described referring to FIG. 3 and the structure shown in FIG. 1 which is also available for the present invention.
- the clogging state of a nozzle can be classified into multiple cases, e.g., it can be classified into three cases as in embodiments of the present invention, and the an ink suction amount mode corresponding to each classified case is preset and stored in controller 24.
- a user determines the clogging state of the nozzle from a printed sheet, and inputs a required suction amount mode to controller 24 according to the clogging state of the nozzle.
- Controller 24 determines whether a suction key is pressed, in step 41. If the suction key is pressed in step 41, the ink suction amount mode is discriminated, in step 42.
- the user selects and inputs any required one among suction amount modes. Assuming that three suction amount modes are preset as described above, since a system operates in the same fashion with respect to three suction amount modes, the description will be given to only one mode.
- controller 24 when the suction amount mode is "a,” controller 24 generates a corresponding motor driving signal, and piston 17 being driven by motor 18 is moved to a position "A" in FIG. 1, in step 43. Then, the ink sucked from head 11 flows into cylinder 16.
- controller 24 When piston 17 reaches at "A" position, controller 24 generates again the motor driving signal, and piston 17 returns the initial standby position, in step 44. Accordingly, the ink inside cylinder 16 is expelled outside cylinder 16 through discharging pipe 25 into reservoir 21 in FIG. 1.
- FIG. 4 a flowchart for explaining a method of inputting an ink suction amount value directly to a controller by a user according to another embodiment of the present invention, is shown.
- the steps 51, 54, and 55 of the flowchart of FIG. 4 are similar to the steps of FIG. 3 and further description will be omitted.
- controller 24 After suction key is pressed in step 51, controller 24 requires the input of the suction amount. Then, in this embodiment, a user inputs a value of the required suction amount by selecting the same by himself, in step 53, without selecting one among the preset values.
- a plurality of ink suction mode switches corresponding to the preset ink suction amount are provided on an operation panel and one among the switches is selected by a user so that the method of the present invention can be performed, which is illustrated in a flowchart in FIG. 5.
- the user first recognizes a printing state and confirms a state of clogging of a nozzle. For example, when the clogged degree is determined to be relatively low, the user selects a mode "a" switch among the ink suction amount mode switches.
- controller 24 transfers a motor driving signal to motor driver 23, and accordingly motor 18 drives piston 17 so that piston 17 is moved to a "A" position and then stopped, in step 62. Then, controller 24 generates the motor driving signal again, and piston 17 returns to the initial standby position, in step 63.
- the amount of sucked ink is restricted to be as much as that corresponding to a piston's displacement between the initial position and the "A" position.
- controller 24 transfers to motor driver 23 a control signal for moving piston 17 to a position "C.” Accordingly, when motor 18 is driven by motor driver 23, piston 17 moves to the "C” position and then stops there, in step 66. Then, piston 17 returns to the initial standby position, in step 67, as in a case of selecting the "a" mode.
- motor driver 23 receives from controller 24 a control signal for moving piston 17 to a position "B.”
- Motor 18 is driven by motor driver 23, and piston 17 moves to the "B” position and stops there, in step 64. Then, piston 17 returns to the initial standby position as in the "a” and "c” modes selection, in step 65.
- the amount of sucked ink in this mode is restricted to be as much as the amount corresponding to a displacement between the initial position and the "B" position.
- the ink suction amount in the ink jet printer since the ink is sucked by moving the piston as much as a predetermined distance according to the clogging state of the nozzle, unnecessary consumption of the ink can be prevented. Simultaneously, since the piston only moves to the predetermined position, a suction time can also be curtailed. Thus, the ink cartridge life can be extended, and work efficiency can be improved as a recovery time to a normal state from the clogged state is reduced.
Landscapes
- Ink Jet (AREA)
Abstract
A method of adjusting an ink suction amount in an ink jet printer includes the steps of: determining an ink suction amount according to a printing state; and sucking the ink from a head according to the determination. Therefore, since the ink is sucked by moving the piston as much as a predetermined distance according to the clogging state of the nozzle, unnecessary consumption of the ink can be prevented. Simultaneously, since the piston only moves to the predetermined position, a suction time can also be curtailed. Thus, the ink cartridge life can be extended, and work efficiency can be improved as a recovery time to a normal state from the clogged state is reduced.
Description
- The present invention relates to a method of ink suction in an ink jet printer.
- Ink jet printers are described in U.S. Pat. Nos. 4,926,196, 4,970,535, 5,057,134, 5,184,147, 5,296,876, 5,300,958, and 5,325,111, some of which will be described below.
- Of these, U.S. Pat. No. 4,970,535 discloses an ink jet printer, particularly a head cleaner, in which residual ink is removed from a face of a print head of the ink jet printer by using controlled fluid flow, thereby to clean the head. Though having an effect of cleaning the head face, however, the head cleaner is not effective when a nozzle disposed in the head for supplying ink gets clogged with ink residue or foreign substances.
- Another ink jet printer described in U.S. Pat. No. 5,296,876 has an apparatus for controlling the amount of ink supplied through nozzles according to a printing defect degree when the printing defect occurs. Thus, unnecessary consumption of the ink is avoidable. However, this apparatus cannot solve the nozzle clogging problem.
- In U.S. Pat. No. 5,300,958, an apparatus and a method for cleaning a print head are described, where a particular wiper for providing a cleaning solution to the print head to perform cleaning is provided. However, it has no effect on the clogging of a nozzle.
- To solve the nozzle problem, a method of sucking ink by means of pumping is generally employed to open up the blocked nozzle.
- An arrangement of a head, a suction cylinder, and other relating parts in a conventional ink jet printer adopting such a sucking method is schematically illustrated in FIG. 1.
- Referring to the drawing, in the conventional ink jet printer, a
head 11 filled with ink for performing print on a recording sheet is provided. The ink is expelled outsidehead 11 through nozzle holes (not shown) formed on thelower surface 13 of nozzles (not shown) installed insidehead 11. - When
head 11 is in a standby position (non-printing position), air may flow in through the nozzle holes or the nozzle holes may be clogged or damaged with foreign substances. To prevent this,head 11 is situated at a home station (not shown) in the non-printing mode, and acover 14 for capping the nozzle holes is disposed under the home station. From the lower portion ofcover 14, aconnection pipe 15, acylinder 16, and an inkresidual reservoir 21 are sequentially provided. Accordingly, ink dropped to cover 14 from the nozzle hole flows intocylinder 16 throughconnection pipe 15 and then into inkresidual reservoir 21. Here, the ink is absorbed by an absorbingpad 22 provided inside inkresidual reservoir 21. Areference numeral 15v denotes a first valve for preventing a backward flow which is installed inconnection pipe 15 to prevent back flow of the ink. - Meanwhile, when the nozzle hole of
head 11 gets clogged with dried ink or foreign substances such as sheet particles or dirt, in the conventional method, a small amount of ink is expelled fromhead 11 by a sucking action of apiston 17 ofcylinder 16 to open up the clogging. That is, when amotor 18 is driven, apiston rod 16r retreats by an action of a pair ofgears motor shaft 18s andpiston rod 16r, respectively. Piston 17 insidecylinder 16 concurrently retreats, and accordingly, the inner space throughoutcover 14,connection pipe 15, andcylinder 16 lies in a lower pressure state than the inside ofhead 11, so that the ink is absorbed through the nozzle hole, outsidehead 11, intocover 14. Thus, the clogged nozzle hole is cleared up by sucking the ink through the nozzle hole fromhead 11. Here,motor 18 is controlled by acontroller 24 and amotor driver 23. - A suction system in the ink jet printer adopting the conventional suction method is schematically illustrated in a flowchart of FIG. 2.
- Referring to FIG. 2, when a suction key is input by a user to clear up the clogging of the nozzle in
step 31,controller 24 shown in FIG. 1 generates a motor driving signal. Then,motor 18drives piston 17 from a standby position to move back toward a position C, instep 32. Accordingly, the inside ofcylinder 16 enters a low pressure state, and thus, the ink flows intocylinder 16 fromhead 11. Here, the ink residual withinreservoir 21 does not flow upward through a dischargingpipe 25 due to a second valve arranged inside the same for preventing a back flow. - When
piston 17 reaches the position C,controller 24 generates the motor driving signal again, andpiston 17 returns to the initial standby position, instep 33. Accordingly, the ink insidecylinder 16 is expelled outsidecylinder 16 through dischargingpipe 25 intoreservoir 21. Here, the ink does not flow throughconnection pipe 15 due tofirst valve 15v. - However, in such a conventional ink suction system, a constant amount of ink is always sucked and expelled regardless of a degree of the clogging of the nozzle, thereby causing an unnecessary consumption of the ink. As a result, life of an ink cartridge is curtailed.
- To solve the above problems, the present invention provides a method of adjusting a suction amount of ink in an ink jet printer by which the ink is sucked step by step according to a degree of clogging of a nozzle, thereby preventing unnecessary ink consumption and curtailing time required for ink suction.
- Accordingly, there is provided according to one aspect of the invention a method of adjusting an ink suction amount in an ink jet printer comprising the steps of: determining an ink suction amount according to a printing state; and sucking the ink from a head according to the determination.
- Therefore, since the piston is moved to a predetermined position according to the clogging state of the nozzle to suck the ink into the cylinder, unnecessary consumption of the ink can be prevented. Also, the suction time can be curtailed since the piston is moved to a preset position.
- The above objects and advantages of the present invention will become more apparent by describing in detail preferred embodiments thereof with reference to the attached drawings in which:
- FIG. 1 is a schematic view illustrating an arrangement of a head, a cylinder and other relating parts in a conventional ink jet printer;
- FIG. 2 is a flowchart for explaining a process of clearing up the clogging of a nozzle in the conventional ink jet printer;
- FIG. 3 is a flowchart for explaining a method of adjusting an ink suction amount in an ink jet printer according to the present invention; and
- FIGS. 4 and 5 are flowcharts for explaining methods of adjusting an ink suction amount in an ink jet printer according to other embodiments of the present invention.
- Though there may be various structures for performing a method according to the present invention, an embodiment of the present invention will be described referring to FIG. 3 and the structure shown in FIG. 1 which is also available for the present invention.
- In order to perform the method of adjusting an ink suction amount according to the present invention, the clogging state of a nozzle can be classified into multiple cases, e.g., it can be classified into three cases as in embodiments of the present invention, and the an ink suction amount mode corresponding to each classified case is preset and stored in
controller 24. - Then, a user determines the clogging state of the nozzle from a printed sheet, and inputs a required suction amount mode to controller 24 according to the clogging state of the nozzle.
Controller 24 determines whether a suction key is pressed, instep 41. If the suction key is pressed instep 41, the ink suction amount mode is discriminated, instep 42. Here, the user selects and inputs any required one among suction amount modes. Assuming that three suction amount modes are preset as described above, since a system operates in the same fashion with respect to three suction amount modes, the description will be given to only one mode. For example, when the suction amount mode is "a,"controller 24 generates a corresponding motor driving signal, andpiston 17 being driven bymotor 18 is moved to a position "A" in FIG. 1, instep 43. Then, the ink sucked fromhead 11 flows intocylinder 16. Whenpiston 17 reaches at "A" position,controller 24 generates again the motor driving signal, andpiston 17 returns the initial standby position, in step 44. Accordingly, the ink insidecylinder 16 is expelled outsidecylinder 16 through dischargingpipe 25 intoreservoir 21 in FIG. 1. - The process is the same with mode "b" (
steps 45 and 46) and mode "c" (steps 47 and 48). - In FIG. 4, a flowchart for explaining a method of inputting an ink suction amount value directly to a controller by a user according to another embodiment of the present invention, is shown. The
steps step 51,controller 24 requires the input of the suction amount. Then, in this embodiment, a user inputs a value of the required suction amount by selecting the same by himself, instep 53, without selecting one among the preset values. - In yet another embodiment, a plurality of ink suction mode switches corresponding to the preset ink suction amount are provided on an operation panel and one among the switches is selected by a user so that the method of the present invention can be performed, which is illustrated in a flowchart in FIG. 5.
- Referring to the drawing, the user first recognizes a printing state and confirms a state of clogging of a nozzle. For example, when the clogged degree is determined to be relatively low, the user selects a mode "a" switch among the ink suction amount mode switches. When the suction mode switch is selected in
step 61,controller 24 transfers a motor driving signal tomotor driver 23, and accordingly motor 18drives piston 17 so thatpiston 17 is moved to a "A" position and then stopped, instep 62. Then,controller 24 generates the motor driving signal again, andpiston 17 returns to the initial standby position, instep 63. As a result, the amount of sucked ink is restricted to be as much as that corresponding to a piston's displacement between the initial position and the "A" position. - Meanwhile, when a mode "c" is selected since the clogged degree is relatively high, which signifies a need of a lot of suction ink amount,
controller 24 transfers to motor driver 23 a control signal for movingpiston 17 to a position "C." Accordingly, whenmotor 18 is driven bymotor driver 23,piston 17 moves to the "C" position and then stops there, instep 66. Then,piston 17 returns to the initial standby position, instep 67, as in a case of selecting the "a" mode. - Further, when the user determines the clogging state of the nozzle to be a medium state and selects a mode "b,"
motor driver 23 receives from controller 24 a control signal for movingpiston 17 to a position "B."Motor 18 is driven bymotor driver 23, andpiston 17 moves to the "B" position and stops there, instep 64. Then,piston 17 returns to the initial standby position as in the "a" and "c" modes selection, instep 65. Likewise, the amount of sucked ink in this mode is restricted to be as much as the amount corresponding to a displacement between the initial position and the "B" position. - As described above, in the methods of adjusting the ink suction amount in the ink jet printer according to the present invention, since the ink is sucked by moving the piston as much as a predetermined distance according to the clogging state of the nozzle, unnecessary consumption of the ink can be prevented. Simultaneously, since the piston only moves to the predetermined position, a suction time can also be curtailed. Thus, the ink cartridge life can be extended, and work efficiency can be improved as a recovery time to a normal state from the clogged state is reduced.
Claims (6)
- A method of adjusting an ink suction amount in an ink jet printer comprising the steps of:determining an ink suction amount according to a printing state; andsucking the ink from a head according to the determination.
- A method of adjusting an ink suction amount in an ink jet printer as claimed in claim 1, further comprising the steps of:dividing the clogging state of a nozzle into a plurality of cases, andstoring in a controller an ink suction mode corresponding to each of said plurality of cases.
- A method of adjusting an ink suction amount in an ink jet printer as claimed in claim 1, wherein said determination of the ink suction amount is done by directly inputting a required ink suction amount value.
- A method of adjusting an ink suction amount in an ink jet printer as claimed in claim 1, wherein said determination of the ink suction amount is done by providing a plurality of ink suction mode switches corresponding to a predetermined ink suction amount on an operation panel and selecting any one among the same.
- A suction system for cleaning nozzles of an ink jet printer head, comprising means for applying suction to draw ink out of the printer head, characterised by control means arrange to control the suction means to selectively draw a selected one of plural different amounts of ink out through said head.
- A system according to claim 5 in which said suction means comprises a piston in a chamber, and said control means is arranged to draw said piston to a selelected one of plural different positions in said chamber to control the amount of ink drawn through said head.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950005257A KR0132809B1 (en) | 1995-03-14 | 1995-03-14 | The adjusting method of ink suction quantity for ink-jet printers |
KR9505257 | 1995-03-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0732210A2 true EP0732210A2 (en) | 1996-09-18 |
EP0732210A3 EP0732210A3 (en) | 1999-01-07 |
Family
ID=19409771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96301187A Withdrawn EP0732210A3 (en) | 1995-03-14 | 1996-02-22 | Method of ink suction in ink jet printer |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0732210A3 (en) |
KR (1) | KR0132809B1 (en) |
CN (1) | CN1105021C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017081118A (en) * | 2015-10-30 | 2017-05-18 | キヤノン株式会社 | Recording device, recording method and program |
US11872819B2 (en) | 2018-04-28 | 2024-01-16 | Hewlett-Packard Development Company, L.P. | Dispersing concentrated printing fluids |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104029481A (en) * | 2014-05-30 | 2014-09-10 | 安徽美翔塑业有限公司 | Printing ink automatic adding device for thin film printer |
KR20200143539A (en) * | 2019-06-13 | 2020-12-24 | 삼성디스플레이 주식회사 | Inkjet apparatus and printing method of inkjet apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5296876A (en) * | 1989-11-06 | 1994-03-22 | Seiko Epson Corporation | Apparatus for declogging an ink jet recording apparatus |
EP0592006A1 (en) * | 1989-10-22 | 1994-04-13 | Canon Kabushiki Kaisha | Tube pump mechanism for ink jet recording apparatus |
US5386222A (en) * | 1990-09-19 | 1995-01-31 | Canon Kabushiki Kaisha | Ink jet recording system and recovery device used with same |
US5389961A (en) * | 1991-11-25 | 1995-02-14 | Eastman Kodak Company | Ink jet printer with variable-force ink declogging apparatus |
-
1995
- 1995-03-14 KR KR1019950005257A patent/KR0132809B1/en not_active IP Right Cessation
-
1996
- 1996-02-22 EP EP96301187A patent/EP0732210A3/en not_active Withdrawn
- 1996-03-14 CN CN96101980A patent/CN1105021C/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0592006A1 (en) * | 1989-10-22 | 1994-04-13 | Canon Kabushiki Kaisha | Tube pump mechanism for ink jet recording apparatus |
US5296876A (en) * | 1989-11-06 | 1994-03-22 | Seiko Epson Corporation | Apparatus for declogging an ink jet recording apparatus |
US5386222A (en) * | 1990-09-19 | 1995-01-31 | Canon Kabushiki Kaisha | Ink jet recording system and recovery device used with same |
US5389961A (en) * | 1991-11-25 | 1995-02-14 | Eastman Kodak Company | Ink jet printer with variable-force ink declogging apparatus |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017081118A (en) * | 2015-10-30 | 2017-05-18 | キヤノン株式会社 | Recording device, recording method and program |
US11872819B2 (en) | 2018-04-28 | 2024-01-16 | Hewlett-Packard Development Company, L.P. | Dispersing concentrated printing fluids |
Also Published As
Publication number | Publication date |
---|---|
KR960033767A (en) | 1996-10-22 |
CN1138528A (en) | 1996-12-25 |
CN1105021C (en) | 2003-04-09 |
KR0132809B1 (en) | 1998-04-14 |
EP0732210A3 (en) | 1999-01-07 |
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