Global Patent Index - EP 3637192 A8

EP 3637192 A8 20200520 - PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

Title (en)

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

Title (de)

PROZESSKARTUSCHE UND BILDERZEUGUNGSVORRICHTUNG

Title (fr)

CARTOUCHE DE TRAITEMENT ET APPAREIL DE FORMATION D'IMAGES

Publication

EP 3637192 A8 20200520 (EN)

Application

EP 19207356 A 20131213

Priority

  • JP 2012273204 A 20121214
  • EP 18166572 A 20131213
  • EP 13862540 A 20131213
  • JP 2013084174 W 20131213

Abstract (en)

A process cartridge comprises a photosensitive drum; a rotatable developing roller for developing an electrostatic latent image formed on-the photosensitive drum; a rotatable toner supplying roller, provided in contact with the developing roller, for supplying toner to the developing roller; a toner chamber for containing toner; a developing chamber in which the toner supplying roller is positioned; a feeding member provided in the toner chamber and rotatable to feed the toner from the toner chamber to the developing chamber; a coupling operatively connected to the toner supply roller and configured to receive a driving force for rotating the toner supplying roller, the developing roller, and the feeding member; a first gear operatively connected to the toner supply roller and configured to transmit the driving force received by the coupling to the developing roller; and a second gear operatively connected to the developing roller and configured to transmit the driving force from the first gear to the developing roller, wherein the process cartridge is configured such that, when the coupling receives the driving force and the process cartridge is oriented with the developing roller positioned above the toner chamber, a rotational direction of the developing roller is opposite to a rotational direction of the toner supplying roller, a part of a surface of the toner supplying roller rotates from a first position at which the part of the surface of the toner supply roller contacts a surface of the developing roller to a second position where the part of the surface of the toner supplying roller moves out of contact with the surface of the developing roller, with the first position being above the second position, the feeding member feeds toner upward from the toner chamber to the developing chamber, and a speed of the surface of the toner supplying roller is greater than a speed of the surface of the developing roller.

IPC 8 full level

G03G 15/08 (2006.01); G03G 21/18 (2006.01)

CPC (source: EP RU US)

G03G 15/0896 (2013.01 - EP); G03G 21/08 (2013.01 - RU); G03G 21/18 (2013.01 - RU); G03G 21/1803 (2013.01 - US); G03G 21/1857 (2013.01 - EP US); G03G 21/186 (2013.01 - RU); G03G 15/0806 (2013.01 - EP US); G03G 15/0808 (2013.01 - EP US); G03G 21/1825 (2013.01 - EP US); G03G 21/185 (2013.01 - EP US); G03G 2221/1657 (2013.01 - EP US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2933685 A1 20151021; EP 2933685 A4 20160720; EP 2933685 B1 20190508; BR 112015013940 A2 20170711; CA 2894397 A1 20140619; CA 2894397 C 20230314; CA 3187234 A1 20140619; CN 104919374 A 20150916; CN 104919374 B 20200407; CN 110083032 A 20190802; CN 110083032 B 20220318; CN 111240171 A 20200605; CN 111240171 B 20230613; CN 111240172 A 20200605; CN 111240172 B 20221028; DK 2933685 T3 20190722; DK 3379339 T3 20200420; EP 3379339 A1 20180926; EP 3379339 B1 20200909; EP 3637192 A1 20200415; EP 3637192 A8 20200520; EP 3637192 B1 20220622; EP 4075203 A1 20221019; ES 2729326 T3 20191031; ES 2820283 T3 20210420; ES 2820283 T8 20220318; HK 1209851 A1 20160408; HU E044335 T2 20191028; HU E051177 T2 20210301; JP 2014134787 A 20140724; JP 2018025820 A 20180215; JP 2018173669 A 20181108; JP 2020095289 A 20200618; JP 6242201 B2 20171206; JP 6395916 B2 20180926; JP 6682582 B2 20200415; JP 6950024 B2 20211013; ME 03492 B 20200120; PL 2933685 T3 20191129; PL 3379339 T3 20200727; PT 2933685 T 20190611; PT 3379339 T 20201020; RS 59023 B1 20190830; RS 60974 B1 20201130; RU 2015128304 A 20170119; RU 2018111811 A 20191004; RU 2018111811 A3 20191004; RU 2608318 C1 20170117; RU 2650781 C1 20180417; RU 2698943 C1 20190902; RU 2719267 C1 20200417; RU 2734872 C1 20201023; RU 2747518 C1 20210506; RU 2765346 C1 20220128; TR 201911114 T4 20190821; US 2015277367 A1 20151001; US 9519264 B2 20161213; WO 2014092208 A1 20140619

DOCDB simple family (application)

EP 13862540 A 20131213; BR 112015013940 A 20131213; CA 2894397 A 20131213; CA 3187234 A 20131213; CN 201380070338 A 20131213; CN 201910357964 A 20131213; CN 202010227026 A 20131213; CN 202010227037 A 20131213; DK 13862540 T 20131213; DK 18166572 T 20131213; EP 18166572 A 20131213; EP 19207356 A 20131213; EP 22171733 A 20131213; ES 13862540 T 20131213; ES 18166572 T 20131213; HK 15110641 A 20151028; HU E13862540 A 20131213; HU E18166572 A 20131213; JP 2013084174 W 20131213; JP 2013256647 A 20131212; JP 2017200118 A 20171016; JP 2018153905 A 20180820; JP 2020045509 A 20200316; ME P2019206 A 20131213; PL 13862540 T 20131213; PL 18166572 T 20131213; PT 13862540 T 20131213; PT 18166572 T 20131213; RS P20190927 A 20131213; RS P20201273 A 20131213; RU 2015128304 A 20131213; RU 2016152189 A 20131213; RU 2018111811 A 20180403; RU 2019100103 A 20190110; RU 2019126775 A 20190826; RU 2020112170 A 20200325; RU 2020131281 A 20200923; RU 2021111596 A 20210423; TR 201911114 T 20131213; US 201514737680 A 20150612