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1. WO2022010484 - COOLING A PRINTHEAD IN RESPONSE TO A COOLING DEMAND

Publication Number WO/2022/010484
Publication Date 13.01.2022
International Application No. PCT/US2020/041447
International Filing Date 09.07.2020
IPC
B41J 29/377 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
29Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
377Cooling or ventilating arrangements
B41J 2/175 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005characterised by bringing liquid or particles selectively into contact with a printing material
01Ink jet
17characterised by ink handling
175Ink supply systems
B41L 27/10 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
LAPPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING, OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
27Inking arrangements or devices
04Ducts, containers, supply devices or ink-level control devices
10with ink-ejection means, e.g. pumps, nozzles
B41F 31/08 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
FPRINTING MACHINES OR PRESSES
31Inking arrangements or devices
02Ducts, containers, supply or metering devices
08with ink-ejecting means, e.g. pumps, nozzles
Applicants
  • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. [US]/[US]
Inventors
  • VAZQUEZ FERNANDEZ, Dorkaitz Alain
  • YU, Alvin Zheng-Hui
  • SERAS FRANZOSO, Mauricio
  • ROIG HERNANDEZ, Guillem
  • KORNGIEBEL, Jennifer M
  • CRESPI SERRANO, Albert
  • CARLOMAN, Lemuel
  • CRESPI ARGEMI, Cristina
Agents
  • PERRY, Garry A.
  • CARTER, Daniel J.
  • COSTALES, Shruti
  • GARDINER, Austin William
  • GORDON, Erica
  • HOOPES, Benjamin
  • JENNEY, Michael
  • KO, Steve S.
  • KOKOSKA, Christopher E.
  • MAISAMI, Ceyda Azakli
  • MATHEW, Wilson T.
  • SEARLE, Benjamin M.
  • SORENSEN, C. Blake
  • SU, Benjamin
  • WASSON, Robert D.
  • WOODWORTH, Jeffrey C.
  • WOJTALEWICZ, Kathy A.
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) COOLING A PRINTHEAD IN RESPONSE TO A COOLING DEMAND
(FR) REFROIDISSEMENT D'UNE TÊTE D'IMPRESSION EN RÉPONSE À UNE DEMANDE DE REFROIDISSEMENT
Abstract
(EN) In an example a method includes determining, using processing circuitry, whether there is a demand for cooling a printhead. In response to determining a cooling demand for the printhead, a continuous flow of print agent is pumped (for a first time period) along a flow path from a first tank of a print agent delivery system, into the printhead through a first printhead port and out of the printhead through a second printhead port.
(FR) La présente invention concerne, dans un exemple, un procédé qui consiste à déterminer, à l'aide d'un ensemble de circuits de traitement, s'il y a une demande de refroidissement d'une tête d'impression. À la suite de la détermination d'une demande de refroidissement de la tête d'impression, un écoulement continu d'un agent d'impression est pompé (pendant une première période de temps) le long d'un trajet d'écoulement à partir d'un premier réservoir d'un système de distribution d'agent d'impression, dans la tête d'impression à travers un premier orifice de tête d'impression et en dehors de la tête d'impression à travers un second orifice de tête d'impression.
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