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Image forming apparatus including coupling member selectively coupled to photosensitive drum

  • US 10,082,766 B2
  • Filed: 09/26/2016
  • Issued: 09/25/2018
  • Est. Priority Date: 10/31/2008
  • Status: Active Grant
First Claim
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1. An image forming apparatus comprising:

  • a main casing;

    a process frame configured to slide relative to the main casing between a first position and a second position, the process frame being in the main casing in a case where the process frame is in the first position, and the process frame being out of the main casing in a case where the process frame is in the second position, and the process frame including;

    a first photosensitive drum supported by and movable with the process frame in a case where the process frame slides relative to the main casing between the first position and the second position, and the first photosensitive drum being detachable from the process frame; and

    a second photosensitive drum supported by and movable with the process frame in a case where the process frame slides relative to the main casing between the first position and the second position, and the second photosensitive drum being non-detachably supported by the process frame at all positions of the process frame relative to the main casing;

    a first developing cartridge including;

    a first developing roller configured to be in contact with the first photosensitive drum in a state where the first developing cartridge is attached to the process frame; and

    a second developing cartridge including;

    a second developing roller configured to be in contact with the second photosensitive drum in a state where the second developing cartridge is attached to the process frame.

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