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1. (WO2019063978) PIGMENT DISPERSAL IN AN INK JET PRINTER
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Pub. No.: WO/2019/063978 International Application No.: PCT/GB2018/052677
Publication Date: 04.04.2019 International Filing Date: 19.09.2018
IPC:
B41J 2/175 (2006.01) ,B41J 2/18 (2006.01) ,B41J 2/185 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2
Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005
characterised by bringing liquid or particles selectively into contact with a printing material
01
Ink jet
17
characterised by ink handling
175
Ink supply systems
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2
Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005
characterised by bringing liquid or particles selectively into contact with a printing material
01
Ink jet
17
characterised by ink handling
18
Ink recirculation systems
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2
Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005
characterised by bringing liquid or particles selectively into contact with a printing material
01
Ink jet
17
characterised by ink handling
18
Ink recirculation systems
185
Ink-collectors; Ink-catchers
Applicants:
LINX PRINTING TECHNOLOGIES LTD [GB/GB]; Linx House 8 Compass Point Business Park Stocks Bridge Way St Ives Cambridgeshire PE27 5JL, GB
Inventors:
THOMAS, Graham; GB
JONES, Bryn; GB
Agent:
CSY HERTS; Helios Court 1 Bishop Square Hatfield Hertfordshire AL10 9NE, GB
Priority Data:
1715541.726.09.2017GB
Title (EN) PIGMENT DISPERSAL IN AN INK JET PRINTER
(FR) DISPERSION DE PIGMENT DANS UNE IMPRIMANTE À JET D’ENCRE
Abstract:
(EN) In a continuous ink jet printer for use with pigmented ink, the entrance to the ink path (81), (35) from the interior of the ink tank (27) to the ink pump (31) is made up of a plurality of small inlet openings, which may be provided by nozzles 85 formed in a shroud 83 that fits around an ink filter (33) in the ink tank (27). The openings are provided at the bottom of the ink tank (27), close to the floor, and face parallel to the floor or at least partially towards it. If the ink pump (31) is driven in reverse, any ink in the ink path is driven at speed out through the inlet openings into the interior of the ink tank (27), followed by air. This tends to disperse pigment that may have settled to the bottom on the ink tank (27).
(FR) Dans une imprimante à jet d’encre continu pour utilisation avec de l’encre pigmentée, l’entrée du trajet d’encre (81), (35) depuis l’intérieur du réservoir d’encre (27) vers la pompe à encre (31) est constituée d’une pluralité de petites ouvertures d’entrée, qui peuvent être fournies par des buses (85) formées dans une enveloppe (83) qui s’ajuste autour d’un filtre à encre (33) dans le réservoir d’encre (27). Les ouvertures sont disposées au fond du réservoir d’encre (27), à proximité du sol, et font face parallèlement au sol ou au moins partiellement vers celui-ci. Si la pompe à encre (31) est entraînée en marche inverse, l’encre éventuellement dans le trajet d’encre est entraînée à une vitesse de sortie à travers les ouvertures d’entrée à l’intérieur du réservoir d’encre (27), suivie par de l’air. Cela tend à disperser le pigment qui peut avoir décanté au fond du réservoir d’encre (27).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)