# US 2014/0153954 A1 · Image Forming Apparatus

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0153954 A1
- Document ID: US20140153954A1
- Status: Published application
- Kind: A1
- Application number: 14/175,383
- Filed: 2014-02-07
- Published: 2014-06-05
- Earliest claimed: 2006-07-19
- Assignees: Brother Kogyo Kabushiki Kaisha
- Inventors: Yasushi Okabe
- Web page: https://patentgrep.com/patent/US20140153954A1

## CPC

- G03G 21/1652: {Electrical connection means}
- G03G 21/1871: {associated with a positioning function}
- G03G 2215/0119: Linear arrangement adjacent plural transfer points
- G03G 2221/166: Electrical connectors
- G03G 2221/1684: using extractable subframes, e.g. on rails or hinges
- G03G 2221/1869: Cartridge holders, e.g. intermediate frames for placing cartridge parts therein
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

The present invention provides a configuration in which an electrically connected condition can further be stabilized in electrical-connection zones between a body of an image-forming apparatus, and an image-forming unit and a plurality of image-forming cartridges. Developing electrode members and wire power-feed electrodes are attached to a slide frame. Each of the developing electrode members has a first body-side contact. The developing electrode members are electrically connected with the developing-roller output terminals. The wire power-feed electrodes are electrically connected with wire output terminals through contact with the wire output terminals. The developing electrode members are elastically deformed as a result of their first body-side contacts being pressed in a direction, which is along a slide direction, by the developing-roller output terminals. The wire power-feed electrodes are pressed in a paper width direction by the wire output terminals.

## Claims

### Claim 1

An image-forming apparatus, comprising:
a main body including a body electrode;
a slide frame supported by the main body such that the slide frame can be drawn out from the main body along a predetermined slide direction;
a cartridge including a developing roller and a cartridge electrode configured to establish an electrical connection to the developing roller; and
an electrode mounted on the slide frame and configured to contact the cartridge electrode and the body electrode;
wherein the electrode comprises:
a coil portion having a shape of a coil spring, and
an arm portion provided at one end of the coil portion and having a body contact configured to contact the body electrode,
wherein the arm portion is configured to be pressed in a direction intersecting with the slide direction and an axial direction of the developer roller by the body electrode.