A raceway system that provides a cable routing pathway that is easily configured during installation and reconfigured if modifications are required. The raceway system includes at least one U-shaped channel. The U-shaped channel is defined by a base and sidewalls extending perpendicularly from outer edges of the base. The sidewalls include a plurality of apertures in the sidewalls. At least one insert is secured to the sidewall at one of the apertures in the sidewalls.

A drum unit for a cartridge includes a photosensitive drum and a coupling member rotatable about a rotational axis thereof, the coupling member being operatively connected to the photosensitive drum. The coupling member includes a movable extended portion that extends in a first direction, and a projection projecting from the extended portion in a second direction that crosses the first direction, the projection being capable of transmitting a driving force to the photosensitive drum. At least a part of the projection is positioned inside of the photosensitive drum.

A drum unit for a cartridge includes a photosensitive drum and a coupling member having a rotational axis, with the coupling member being operatively connected to the photosensitive drum. The coupling member includes a cylindrical portion having an outer surface and an inner surface that extends about the rotational axis of the coupling member, an arm portion extending from the inner surface of the cylindrical portion, and a projection projecting from the arm portion in a direction toward the rotational axis of the coupling member. The arm portion and the projection are movable relative to the inner surface.

To develop a conventional coupling for transmitting a driving force. A coupling member is provided with a supporting portion for movable supporting a driving force receiving portion for receiving a driving force.

A cartridge includes a rotatable member configured to carry toner on a surface and a coupling member operatively connected to the rotatable member. The coupling member is rotatable about a rotational axis thereof, and the coupling member includes an extended portion that is movable in a direction perpendicular to the rotational axis, and a projection projecting from the extended portion, with the extended portion extending in a direction crossing a projecting direction of the projection. The extended portion extends downstream in a rotational direction of the coupling member toward the projection.

A drum unit for a cartridge includes a cylindrical photosensitive drum having an axis L1, and a coupling member operatively connected to the photosensitive drum. The coupling member includes a drum flange provided at an end of the photosensitive drum with a part of the drum flange being positioned inside of the photosensitive drum. The drum unit also includes a connecting part operatively connected to the drum flange, with the connecting part including a cap positioned adjacent to the drum flange, an arm portion extending from the cap in a direction of the axis L1, and a projection projecting from the arm portion in a direction perpendicular to the axis L1. The arm and the projection are movable relative to the drum flange and the cap.

A cartridge includes a casing and a photosensitive drum rotatably supported by the casing. A coupling member is operatively connected to the photosensitive drum, with the coupling member being rotatable about a rotational axis thereof. The coupling member includes (i) a cylindrical portion, (ii) a first projection at least partially positioned inside of the cylindrical portion, (iii) a second projection at least partially positioned inside of the cylindrical portion, and (iv) an aligner at least partially positioned inside of the cylindrical portion, the aligner including a surface that faces the rotational axis. A distance between at least one of the first and second projections and the aligner is changeable.

A cantilever system comprises a snapping body configured to ensure a persistent contact with a receiving body. The snapping body includes a supporting body extending from the snapping body, a step extending from the supporting body, the step configured to lock the snapping body and the receiving body in an engaged position, and a constant contact protrusion extending into the step, wherein the constant contact protrusion is configured to maintain engagement of the snapping body and the receiving body.

A shield assembly for a shaft includes a first tubular section having a first end and a second end and a second tubular section having a first end and a second end. The first and second tubular sections are each hollow receiving the shaft. The first tubular section includes a first outer diameter and the second tubular section includes a second outer diameter, the first outer diameter being greater than the second outer diameter. The first tubular section and the second tubular section are telescopically coupled to one another where the second tubular section is movably disposed at least partially within the first tubular section.

A cartridge includes a casing and a photosensitive drum rotatably supported by the casing. A coupling member is operatively connected to the photosensitive drum, with the coupling member being rotatable about a rotational axis thereof. The coupling member includes (i) a cylindrical portion, (ii) a first projection at least partially positioned inside of the cylindrical portion, (iii) a second projection at least partially positioned inside of the cylindrical portion, and (iv) an aligner at least partially positioned inside of the cylindrical portion, the aligner including a surface that faces the rotational axis. A distance between at least one of the first and second projections and the aligner is changeable.