G03G21/1846

Image forming apparatus
11754967 · 2023-09-12 · ·

An image forming apparatus includes: a housing having an opening; a drawer movable, through the opening, between a housing position in which the drawer is housed in the housing and a drawn position in which the drawer is drawn from the housing; a first drum cartridge including a first photosensitive drum, and mountable to and removable from the drawer; a first developing cartridge including a first developing roller, and mountable to and removable from the first drum cartridge; and a transfer device configured to transfer toner on the first photosensitive drum to a sheet and located above the first drum cartridge in a state where the first drum cartridge is mounted to the drawer and the drawer is located in the housing position. In a state where the first drum cartridge is removed from the drawer, the first developing cartridge is mountable to and removable from the first drum cartridge.

Image forming device

An image forming device, including: a housing; a drawer movable between an inside position at which the drawer is located inside the housing and an outside position at which the drawer is located outside the housing; a drum cartridge including a photoconductive drum and a developer roller and mountable on the drawer; a toner cartridge storing toner to be supplied to the developer roller and mountable on the drawer, wherein the drawer includes a first guide that guides the toner cartridge in mounting the toner cartridge on the drawer, and wherein the drum cartridge includes a second guide connected to the first guide in a state in which the drum cartridge is mounted on the drawer, the second guide being configured to guide the toner cartridge in mounting the toner cartridge on the drawer in the state in which the drum cartridge is mounted on the drawer.

IMAGE FORMING APPARATUS
20220390890 · 2022-12-08 · ·

An image forming apparatus includes a main body casing, a drum cartridge, a developing cartridge and an intermediate transfer belt. The drum cartridge is removably insertable into to the main body casing in a first direction. The developing cartridge is removably insertable into the main body casing in the first direction. The drum cartridge includes a first handle. The first handle has a first recess having a first hollow. The developing cartridge includes a second handle. The second handle has a second recess having a second hollow.

IMAGE FORMING APPARATUS
20230359143 · 2023-11-09 ·

An image forming apparatus includes a housing having an opening, a drawer movable through the opening between a housing position and a drawn position, a process cartridge mountable to and removable from the drawer and including a drum cartridge including a photosensitive drum rotating about a first axis, and a developing cartridge including a developing roller that supplies toner to the photosensitive drum and rotates about a second axis extending in parallel with the first axis, and an intermediate transfer belt located above the drum cartridge in a state where the process cartridge is mounted to the drawer and the drawer is located in the housing position. The developing cartridge includes a handle. The handle is located opposite to the photosensitive drum with respect to the developing roller in a direction of drawing the drawer, in a state where the process cartridge is removed from the drawer.

Replaceable units of an electrophotographic image forming device having a shipping or storage separator

A toner cartridge according to one embodiment includes a body having a reservoir for storing toner and a rotatable developer roll mounted on the body and in fluid communication with the reservoir. A portion of an outer surface of the developer roll is exposed along a front of the body for supplying toner from the reservoir to a corresponding photoconductive drum on an imaging unit when the toner cartridge is installed on the imaging unit in an operative position of the toner cartridge relative to the imaging unit. A first engagement member positioned on a rear of the body is configured to engage a corresponding second engagement member on the imaging unit when the toner cartridge is installed on the imaging unit to retain the toner cartridge in a storage position of the toner cartridge relative to the imaging unit with the developer roll spaced away from the photoconductive drum.

IMAGE FORMING DEVICE
20220373965 · 2022-11-24 · ·

An image forming device, including: a housing; a drawer movable between an inside position at which the drawer is located inside the housing and an outside position at which the drawer is located outside the housing; a drum cartridge including a photoconductive drum and a developer roller and mountable on the drawer; a toner cartridge storing toner to be supplied to the developer roller and mountable on the drawer, wherein the drawer includes a first guide that guides the toner cartridge in mounting the toner cartridge on the drawer, and wherein the drum cartridge includes a second guide connected to the first guide in a state in which the drum cartridge is mounted on the drawer, the second guide being configured to guide the toner cartridge in mounting the toner cartridge on the drawer in the state in which the drum cartridge is mounted on the drawer.

IMAGE FORMING APPARATUS
20220326653 · 2022-10-13 ·

An image forming apparatus includes: a housing having an opening; a drawer movable, through the opening, between a housing position in which the drawer is housed in the housing and a drawn position in which the drawer is drawn from the housing; a first drum cartridge including a first photosensitive drum, and mountable to and removable from the drawer; a first developing cartridge including a first developing roller, and mountable to and removable from the first drum cartridge; and a transfer device configured to transfer toner on the first photosensitive drum to a sheet and located above the first drum cartridge in a state where the first drum cartridge is mounted to the drawer and the drawer is located in the housing position. In a state where the first drum cartridge is removed from the drawer, the first developing cartridge is mountable to and removable from the first drum cartridge.

DEVELOPING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

Disclosed is a developing apparatus including: a developer bearing member that bears a developer; a developing frame body that rotatably supports the developer bearing member; a one-end side end member that supports one-end side in an axis direction of the developer bearing member of the developing frame body; and another-end side end member that supports the other-end side in the axis direction of the developer bearing member of the developing frame body. Each of the one-end side end member and the other-end side end member is independently movable with respect to the developing frame body.

Cartridge and image forming apparatus

A cartridge mountable to and dismountable from a main assembly of an image forming apparatus includes a memory, a guide configured to guide a portion-to-be-guided provided in the main assembly and to guide a main assembly contact provided in the main assembly to a memory contact of the memory when the cartridge is mounted in the main assembly, and a grip portion. The guide is provided at a bottom of the cartridge when the cartridge is hung by gripping the grip portion and constitutes a part of a supporting portion configured to support the cartridge when the cartridge is placed on a horizontal placement surface. The guide has a chamfered surface formed by being chamfered. When the cartridge is supported at the supporting portion, the chamfered surface opposes the horizontal placement surface, and a surface of the memory contact is inclined with respect to the horizontal placement surface.

Image forming apparatus and process cartridge including drum cartridge and development cartridge

An image forming apparatus includes a housing having an opening, a drum cartridge, and a development cartridge. The drum cartridge is movable in a first direction through the opening between a first position at which the drum cartridge is located inside the housing and a second position at which the drum cartridge is located outside the housing. The drum cartridge includes a photosensitive drum rotatable about an axis extending in the first direction and a first handle located at a downstream end of the drum cartridge in a movement direction in which the drum cartridge moves from the first position to the second position. The development cartridge is attachable to and detachable from the drum cartridge. The development cartridge includes a development roller and a second handle located upstream of the first handle in the movement direction in a state where the development cartridge is attached to the drum cartridge.