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US 2016/0103418 A1Published application
Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTakayuki Yada, Toru Oguma, Hiroaki Nosho
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AssigneeCanon Kabushiki Kaisha
InventorsTakayuki Yada, Toru Oguma, Hiroaki Nosho
Estimating the term…
An image forming apparatus in which a cartridge including an erroneous attaching prevention unit and a protruding portion as a holding unit, can be inserted to an attached position. The image forming apparatus includes a frame, an inclined surface on which the protruding portion is placed, the inclined surface being provided to the frame, a guide portion defining with the inclined surface a gap through which the protruding portion is able to pass, and a movable member configured to engage with the erroneous attaching prevention unit on a downstream side of the guide portion in an insertion direction.
An image forming apparatus in which a cartridge including an erroneous attaching prevention unit and a protruding portion as a holding unit can be inserted to an attached position, the image forming apparatus comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
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Means for handling the process cartridge in the apparatus body: for guiding and mounting the process cartridge, positioning, alignment, locks
For guiding and mounting the process cartridge, positioning, alignment, locks: the process cartridge being mounted perpendicular to the axis of…
Frame structures: using extractable subframes, e.g. on rails or hinges
Having a submodular arrangement: cartridge holders, e.g. intermediate frames for placing cartridge parts therein
Term end not estimated
1. Field of the Invention
The present invention relates to an image forming apparatus using a cartridge.
2. Description of the Related Art
FIG. 1 is a perspective view of a movable member provided in a tray according to a first exemplary embodiment.
FIG. 2 is a cross-sectional view of an image forming apparatus main body and a cartridge according to the first exemplary embodiment.
FIG. 3 is a cross-sectional view of the cartridge according to the first exemplary embodiment.
A first exemplary embodiment of the present invention is described below. A configuration according to the first exemplary embodiment of the present invention is described in detail with reference to drawings.
The image forming apparatus described below forms an image on a recording medium using an electrophotography image forming system. Examples of the image forming apparatus include an electrophotographic copying machine, an electrophotographic printer (such as a light emitting diode (LED) printer or a laser beam printer), a facsimile apparatus, and a word processor. A process cartridge is formed by integrating an electrophotographic photosensitive member with at least one of a charging unit, a developing unit, and a cleaning unit serving as process units that perform processing on the electrophotographic photosensitive member, as a single cartridge. The cartridge is detachably attached to a main body of the image forming apparatus. For example, an image bearing member (hereinafter, referred to as a photosensitive drum), and at least one of the developing unit, the charging unit, and the cleaning unit serving as the process units, are integrally formed as a single cartridge. In the configuration according to the present exemplary embodiment, the process cartridge includes at least the cleaning unit.
In the description given below, the rotational axis direction of the photosensitive drum is defined as a longitudinal direction. In the longitudinal direction, a side on which the photosensitive drum receives driving force from an image forming apparatus main body is referred to as a driving side, and a side opposite to the driving side is referred to as a non-driving side. In the present embodiment, a laser beam printer employing electrophotography technique and having a cartridge A detachably attached to a main body of the image forming apparatus (hereinafter, referred to as an apparatus main body G), is described as an example of the image forming apparatus. The apparatus main body G is a portion of the electrophotographic image forming apparatus from which the cartridge A is excluded.