Image forming apparatus including holder for holding photosensitive drums
First Claim
1. An image forming apparatus comprising:
- a main body including a metal frame; and
a holder configured to hold a plurality of photosensitive drums arranged in an arrangement direction, the holder being configured to move in the arrangement direction and be mounted in the main body,wherein, when the holder is mounted in the main body, the metal frame is disposed outside the holder,wherein the metal frame includesa main body portion extending in the arrangement direction and being disposed in a position not overlapping the photosensitive drums in an axial direction of the photosensitive drums, the main body portion further having a first end portion and a second end portion opposite to the first end portion in the arrangement direction,a first extension portion extending from the first end portion of the main body portion in a direction perpendicular to the arrangement direction and parallel to a side of the holder in a first dimension, the side of the holder being parallel to the arrangement direction in a second dimension, anda second extension portion extending from the second end portion of the main body portion in the direction perpendicular to the arrangement direction and parallel to the side of the holder in the first dimension, andwherein the first extension portion includes a first positioning portion configured to receive a coupling member that is configured to contact the holder to position the holder in the arrangement direction and in the direction perpendicular to the arrangement direction and parallel to the side of the holder in the first dimension, and the second extension portion includes a second positioning portion configured to receive the holder to position the holder in the direction perpendicular to the arrangement direction and parallel to the side of the holder in the first dimension, andwherein the first extension portion and the second extension portion together with the main body portion form a U-shaped structure.
1 Assignment
0 Petitions
Accused Products
Abstract
An image forming apparatus includes a main body including a metal frame, and a holder configured to hold a plurality of photosensitive drums arranged in an arrangement direction. The metal frame includes a main body portion, a first extension portion and a second extension portion. The main body portion extends in the arrangement direction and is disposed in a position not overlapping the photosensitive drums in an axial direction of the photosensitive drums, and further has a first end portion and a second end portion opposite to the first end portion in the arrangement direction. The first extension portion and the second extension portion extend from the first end portion and the second end portion of the main body portion, respectively, in a direction perpendicular to the arrangement direction and parallel to a side of the holder in a first dimension, the side of the holder being parallel to the arrangement direction in a second dimension.
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Citations
20 Claims
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1. An image forming apparatus comprising:
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a main body including a metal frame; and a holder configured to hold a plurality of photosensitive drums arranged in an arrangement direction, the holder being configured to move in the arrangement direction and be mounted in the main body, wherein, when the holder is mounted in the main body, the metal frame is disposed outside the holder, wherein the metal frame includes a main body portion extending in the arrangement direction and being disposed in a position not overlapping the photosensitive drums in an axial direction of the photosensitive drums, the main body portion further having a first end portion and a second end portion opposite to the first end portion in the arrangement direction, a first extension portion extending from the first end portion of the main body portion in a direction perpendicular to the arrangement direction and parallel to a side of the holder in a first dimension, the side of the holder being parallel to the arrangement direction in a second dimension, and a second extension portion extending from the second end portion of the main body portion in the direction perpendicular to the arrangement direction and parallel to the side of the holder in the first dimension, and wherein the first extension portion includes a first positioning portion configured to receive a coupling member that is configured to contact the holder to position the holder in the arrangement direction and in the direction perpendicular to the arrangement direction and parallel to the side of the holder in the first dimension, and the second extension portion includes a second positioning portion configured to receive the holder to position the holder in the direction perpendicular to the arrangement direction and parallel to the side of the holder in the first dimension, and wherein the first extension portion and the second extension portion together with the main body portion form a U-shaped structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An image forming apparatus comprising:
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a main body including a metal frame; and a holder configured to hold a plurality of photosensitive drums arranged in an arrangement direction, the holder being configured to move in the arrangement direction and be mounted in the main body, wherein, when the holder is mounted in the main body, the metal frame is disposed outside the holder, wherein the metal frame includes a main body portion extending in the arrangement direction and being disposed in a position not overlapping the photosensitive drums in an axial direction of the photosensitive drums, the main body portion further having a first end portion and a second end portion opposite to the first end portion in the arrangement direction, a first extension portion extending from the first end portion of the main body portion in a direction perpendicular to the arrangement direction and parallel to a side of the holder, and a second extension portion extending from the second end portion of the main body portion in the direction perpendicular to the arrangement direction and parallel to the side of the holder, and wherein the first extension portion includes a first positioning portion configured to receive a coupling member that is configured to contact the holder to position the holder in the arrangement direction and in the direction perpendicular to the arrangement direction and parallel to the side of the holder, and the second extension portion includes a second positioning portion configured to receive the holder to position the holder in the direction perpendicular to the arrangement direction and parallel to the side of the holder, wherein the metal frame has a first frame including the main body portion and the first extension portion, and a second frame provided separately from the first frame and including at least the second extension portion, wherein the first frame has a first through hole and the second frame has a second through hole, wherein the main body includes a protrusion, wherein the first through hole and the second through hole are engaged with the protrusion such that the first frame and the second frame are positioned relative to the main body in at least the direction perpendicular to the arrangement direction and parallel to the side of the holder, and wherein at least the first through hole provided in the first frame is elongated in the arrangement direction. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification