EP3686013A3 - Print head control circuit, print head, and liquid discharge apparatus - Google Patents

Print head control circuit, print head, and liquid discharge apparatus Download PDF

Info

Publication number
EP3686013A3
EP3686013A3 EP19198472.3A EP19198472A EP3686013A3 EP 3686013 A3 EP3686013 A3 EP 3686013A3 EP 19198472 A EP19198472 A EP 19198472A EP 3686013 A3 EP3686013 A3 EP 3686013A3
Authority
EP
European Patent Office
Prior art keywords
diagnosis
print head
signal propagation
propagation wiring
control circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19198472.3A
Other languages
German (de)
French (fr)
Other versions
EP3686013B1 (en
EP3686013A2 (en
Inventor
Yusuke Matsumoto
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of EP3686013A2 publication Critical patent/EP3686013A2/en
Publication of EP3686013A3 publication Critical patent/EP3686013A3/en
Application granted granted Critical
Publication of EP3686013B1 publication Critical patent/EP3686013B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04541—Specific driving circuit
    • 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
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/0451—Control methods or devices therefor, e.g. driver circuits, control circuits for detecting failure, e.g. clogging, malfunctioning actuator
    • 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
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04521—Control methods or devices therefor, e.g. driver circuits, control circuits reducing number of signal lines needed
    • 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
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04563—Control methods or devices therefor, e.g. driver circuits, control circuits detecting head temperature; Ink temperature
    • 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
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04581—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on piezoelectric elements
    • 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
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04588—Control methods or devices therefor, e.g. driver circuits, control circuits using a specific waveform
    • 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
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04593—Dot-size modulation by changing the size of the drop
    • 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
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04596—Non-ejecting pulses
    • 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
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2/14201—Structure of print heads with piezoelectric elements
    • B41J2/14233—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
    • 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
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2002/14491—Electrical connection

Landscapes

  • Ink Jet (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

A print head control circuit controls an operation of a print head including a diagnosis circuit that diagnoses whether or not normal discharge of a liquid is possible. The print head control circuit includes a first cable including a first diagnosis signal propagation wiring for propagating a first diagnosis signal, a second diagnosis signal propagation wiring for propagating a second diagnosis signal, a third diagnosis signal propagation wiring for propagating a third diagnosis signal, a fourth diagnosis signal propagation wiring for propagating a fourth diagnosis signal, and a first driving signal propagation wiring for propagating a driving signal. A shortest distance between the first driving signal propagation wiring and the diagnosis circuit is longer than a shortest distance between the first diagnosis signal propagation wiring and the diagnosis circuit, longer than a shortest distance between the second diagnosis signal propagation wiring and the diagnosis circuit, longer than a shortest distance between the third diagnosis signal propagation wiring and the diagnosis circuit, and longer than a shortest distance between the fourth diagnosis signal propagation wiring and the diagnosis circuit.
EP19198472.3A 2018-09-19 2019-09-19 Print head control circuit Active EP3686013B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018174369 2018-09-19
JP2019036737A JP7196690B2 (en) 2018-09-19 2019-02-28 PRINT HEAD CONTROL CIRCUIT, PRINT HEAD AND LIQUID EJECTION DEVICE

Publications (3)

Publication Number Publication Date
EP3686013A2 EP3686013A2 (en) 2020-07-29
EP3686013A3 true EP3686013A3 (en) 2020-09-09
EP3686013B1 EP3686013B1 (en) 2022-11-02

Family

ID=69995298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19198472.3A Active EP3686013B1 (en) 2018-09-19 2019-09-19 Print head control circuit

Country Status (2)

Country Link
EP (1) EP3686013B1 (en)
JP (1) JP7196690B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022023542A (en) 2020-07-27 2022-02-08 セイコーエプソン株式会社 Liquid jet head, and liquid jet device
CN113752692A (en) 2020-06-01 2021-12-07 精工爱普生株式会社 Liquid ejecting head and liquid ejecting apparatus
JP7491074B2 (en) 2020-06-17 2024-05-28 セイコーエプソン株式会社 LIQUID EJECT HEAD AND LIQUID EJECT APPARATUS
JP2022040498A (en) * 2020-08-31 2022-03-11 セイコーエプソン株式会社 Liquid discharge device, head driving circuit and liquid discharge head

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140247299A1 (en) * 2013-03-01 2014-09-04 Canon Kabushiki Kaisha Printhead board, printhead, and printing apparatus
US20170173950A1 (en) * 2015-12-22 2017-06-22 Seiko Epson Corporation Liquid discharge apparatus and flexible flat cable
WO2017111065A1 (en) * 2015-12-25 2017-06-29 Seiko Epson Corporation Head unit control circuit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012196820A (en) * 2011-03-18 2012-10-18 Seiko Epson Corp Liquid ejecting apparatus, and liquid ejecting method
JP6647521B2 (en) 2014-10-09 2020-02-14 株式会社Flosfia Method of manufacturing conductive laminated structure
JP6488663B2 (en) * 2014-11-17 2019-03-27 セイコーエプソン株式会社 Liquid discharge device and liquid discharge module
JP6686425B2 (en) 2015-12-25 2020-04-22 セイコーエプソン株式会社 Head unit control circuit
JP6701723B2 (en) * 2015-12-25 2020-05-27 セイコーエプソン株式会社 Connection cable
JP6957851B2 (en) * 2016-09-29 2021-11-02 セイコーエプソン株式会社 Liquid discharge device
JP7006099B2 (en) * 2016-12-22 2022-01-24 セイコーエプソン株式会社 Head unit and liquid discharge device
JP2018174369A (en) 2017-03-31 2018-11-08 株式会社日立製作所 Signal transmission method and communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140247299A1 (en) * 2013-03-01 2014-09-04 Canon Kabushiki Kaisha Printhead board, printhead, and printing apparatus
US20170173950A1 (en) * 2015-12-22 2017-06-22 Seiko Epson Corporation Liquid discharge apparatus and flexible flat cable
WO2017111065A1 (en) * 2015-12-25 2017-06-29 Seiko Epson Corporation Head unit control circuit

Also Published As

Publication number Publication date
JP2020049933A (en) 2020-04-02
EP3686013B1 (en) 2022-11-02
JP7196690B2 (en) 2022-12-27
EP3686013A2 (en) 2020-07-29

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