Samsung Electronics Co., Ltd.

Ji-hoon Woo

Sung-wook Kang

Jin-geun Kwak

Dae-ho Kim

Kurgi Eduard

In-sick Seo

Ju-sang Ro

A printing media loading apparatus includes a first printing media loading unit detachably disposed in an image forming apparatus; a second printing media loading unit disposed above the first printing media loading unit; a first lever assembly rotatably disposed in the first printing media loading unit; a second lever assembly disposed in the second printing media loading unit to selectively rotate the first lever assembly; and a detecting sensor disposed in the image forming apparatus to detect action of the first lever assembly, wherein, when at least one printing medium is loaded on the second printing media loading unit and there is no printing medium loaded on the first printing media loading unit, the second lever assembly is rotated and the first lever assembly is rotated by rotation of the second lever assembly to activate the detecting sensor.

Printing media loading apparatus usable with image forming apparatus

Disclosed are an image forming apparatus capable of correcting a color registration error and a method for correcting the color registration error. The image forming apparatus can include an image receptor, a light scanning unit having a plurality of light sources and one or more beam deflectors, a developing unit, a transfer unit, and a color registration error correction unit configured to generate data about a color registration error based on a change in a light output value of the plurality of light source and to correct the color registration error between visible images formed on the image receptor.

Image forming apparatus and method for correcting color registration error thereof

Disclosed are an image forming apparatus of improved power transmission structure and a developing cartridge thereof. The image forming apparatus may include a main body; a driving unit which includes a driving shaft mounted to the main body and a driving coupler connected to the driving shaft. The driving coupler may be provided with a plurality of driving tips. The image forming apparatus may further include a consumable unit that may be detachably received in the main body. The consumable unit may include a driven shaft, a rotating body rotating with the driven shaft and a passive coupler rotating with the driven shaft. The passive coupler may be provided with a plurality of passive tips. The plurality of driving tips and the plurality of passive tips may come into engaging contact with each other when the consumable unit is operably received in the main body, and may remain in the engaging contact even when the respective rotational axes of the driving shaft and the driven shaft intersect with each other.

Image forming apparatus and developing cartridge thereof

A developer supplying apparatus includes a developer lump prevention unit that reduces the aggregation of developer into lumps in the path, which defines the supply passage of developer from the developer cartridge, in which the developer is stored, to the developing cartridge, which houses the developing roller. The developer lump prevention unit includes a developer lump removal member disposed in the path and a driving mechanism to drive the developer lump removal member to move in the path to prevent the developer lumps from forming and/or to break up lumps that had already formed in the path.

Developer supplying apparatus and developing apparatus having the same

A toner path opening and closing apparatus of an image forming device includes a first shutter elastically supported by a first elastic member to open and close a first toner path, and a second shutter elastically supported by a second elastic member having an elastic modulus smaller than the first elastic member to open and close a second toner path by the first shutter. After the second toner path is opened by the first shutter, the first is opened, so that the first and second toner paths communicate with each other. The first toner path is a toner supplying pipeline to which a toner is supplied from a toner cartridge, and the second toner path is a toner injecting port disposed in a developing unit. In mounting of the developing unit, after the toner injecting port disposed in the developing unit is first opened, the toner supplying pipeline is opened, and in dismounting of the developing unit, after the toner supplying pipeline is first closed, the toner injecting port is closed, so that in mounting and dismounting of the developing unit, toner is prevented from being leaked through the toner paths.

Toner path opening and closing apparatus, image forming device having the same and toner path opening and closing method thereof

An image forming apparatus includes: an image recording device having an eject tray on a top thereof, and recording an image on a recording medium corresponding to input image data and discharging the recording medium onto the eject tray; an image reading device mounted over the image recording device to read the image, thereby converting the image to image data, and output the image data to the image recording device; at least one support member supporting the image reading device to keep a predetermined interval between the eject tray and the image reading device; and a pivot unit to pivotally support one end of the support member.

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Hwaseong-si, South Korea

Ji-hoon Woo