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1. WO2021040782 - TONER SUPPLY DUCT PIVOTABLE TO ALLOW ROTATION OF DEVELOPMENT CARTRIDGE

Publication Number WO/2021/040782
Publication Date 04.03.2021
International Application No. PCT/US2020/015146
International Filing Date 27.01.2020
IPC
G03G 15/08 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15Apparatus for electrographic processes using a charge pattern
06for developing
08using a solid developer, e.g. powder developer
G03G 21/00 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
21Arrangements not provided for by groups G03G13/-G03G19/92
CPC
G03G 15/0875
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15Apparatus for electrographic processes using a charge pattern
06for developing
08using a solid developer, e.g. powder developer
0822Arrangements for preparing, mixing, supplying or dispensing developer
0865Arrangements for supplying new developer
0875cartridges having a box like shape
G03G 15/0879
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15Apparatus for electrographic processes using a charge pattern
06for developing
08using a solid developer, e.g. powder developer
0822Arrangements for preparing, mixing, supplying or dispensing developer
0877Arrangements for metering and dispensing developer from a developer cartridge into the development unit
0879for dispensing developer from a developer cartridge not directly attached to the development unit
G03G 21/1825
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
21Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
16Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
18using a processing cartridge ; , whereby the process cartridge comprises at least two image processing means in a single unit
1803Arrangements or disposition of the complete process cartridge or parts thereof
1817having a submodular arrangement
1825Pivotable subunit connection
G03G 2215/0634
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
2215Apparatus for electrophotographic processes
06Developing structures, details
0634Developing device
Applicants
  • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. [US]/[US]
Inventors
  • SON, Janghyun
  • KIM, Jongin
  • LEE, Jeonghyun
Agents
  • HWANG, Byungho
  • ECKERT, George
Priority Data
10-2019-010631029.08.2019KR
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TONER SUPPLY DUCT PIVOTABLE TO ALLOW ROTATION OF DEVELOPMENT CARTRIDGE
(FR) CONDUIT D'ALIMENTATION EN TONER POUVANT PIVOTER POUR PERMETTRE LA ROTATION D'UNE CARTOUCHE DE DÉVELOPPEMENT
Abstract
(EN)
An example image forming apparatus includes a toner cartridge, a photoconductive cartridge including a photosensitive drum, a development cartridge including a toner inlet portion and rotatable between a first position at which a developing roller is close to the photosensitive drum and a second position at which the developing roller is apart from the photosensitive drum, with respect to a hinge axis that is parallel to an axial direction of the developing roller and between the developing roller and the toner inlet portion, a buffer unit including a toner discharge portion to receive toner from the toner cartridge and to supply the toner to the development cartridge, and a toner supply duct connecting the toner discharge portion to the toner inlet portion, the toner supply duct being rotatably connected to the toner discharge portion in a direction allowing rotation of the development cartridge between the first and the second position.
(FR)
Un appareil de formation d'image donné à titre d'exemple comprend une cartouche de toner, une cartouche photoconductrice comprenant un tambour photosensible, une cartouche de développement comprenant une partie d'entrée de toner et pouvant tourner entre une première position dans laquelle un rouleau de développement est proche du tambour photosensible et une seconde position dans laquelle le rouleau de développement est espacé du tambour photosensible, par rapport à un axe d'articulation qui est parallèle à une direction axiale du rouleau de développement et situé entre le rouleau de développement et la partie d'entrée de toner, une unité tampon comprenant une partie de décharge de toner destinée à recevoir du toner de la cartouche de toner et à fournir le toner à la cartouche de développement, et un conduit d'alimentation en toner reliant la partie d'évacuation de toner à la partie d'entrée de toner, le conduit d'alimentation en toner étant relié de façon rotative à la partie de décharge de toner dans une direction permettant la rotation de la cartouche de développement entre la première et la seconde position.
Also published as
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