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Electro-Photographic Type Image Forming Device and Photosensitive Unit Provided in the Same

  • US 20120195633A1
  • Filed: 01/26/2012
  • Published: 08/02/2012
  • Est. Priority Date: 01/31/2011
  • Status: Active Grant
First Claim
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1. An image forming device comprising:

  • a main casing; and

    a photosensitive unit attachable to and detachable from the main casing and comprising;

    a plurality of photosensitive bodies juxtaposedly arrayed and spaced away from each other in an array direction, each photosensitive body defining a longitudinal direction and having each end portion in the longitudinal direction, the array direction being an attaching direction of the photosensitive unit relative to the main casing; and

    a pair of side plate sections supporting each end portion of each photosensitive body and spaced away from each other in the longitudinal direction, each side plate section having a first peripheral portion at a downstream side in the attaching direction provided with a first contact portion, and having a second peripheral portion at an upstream side in the attaching direction provided with a second contact portion;

    the main casing comprising;

    a pair of side walls spaced away from each other in the longitudinal direction;

    a first positioning member extending in the longitudinal direction and spanning between the pair of side walls, the first positioning member having a first positioning portion with which the first contact portion is contactable for positioning the photosensitive unit relative to the main casing; and

    a second positioning member extending in the longitudinal direction and spanning between the pair of side walls and positioned upstream of the first positioning member in the attaching direction, the second positioning member having a second positioning portion with which the second contact portion is contactable for positioning the photosensitive unit relative to the main casing.

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