Guide Bearing Attachment for a Rotatable Element and a Developer Roller Incorporating Same

A developer roller having at least one end, housed within a housing having a substantially circular opening therein, adapted to be received within a guide bearing attachment comprising:

• a base portion;
• a projection extending from the base portion at a first side;
• a circular support extending from a side of the base portion opposite the first side and having at least one open end, the open end being of similar shape to, but marginally larger than, the at least one end;
• and
• fastening means, where, when the developer roller is accurately positioned at a predetermined location within the housing, the at least one end extends into, but not through, the substantially circular opening and is received within the open end of the circular support, the circular support maintaining the accurate positioning of the developer roller at the predetermined location by way of a secure connection formed by the fastening means between the base portion and the housing.

A cartridge having a developer housing and a drum housing, the developer housing having a substantially circular opening therein and also housing a developer roller having at least one end, the developer roller adapted to be received within a guide bearing attachment comprising:

• a base portion;
• a projection extending from the base portion at a first side and adapted to be received within a guiding pathway provided for in the drum housing;
• a circular support extending from a side of the base portion opposite the first side and having at least one open end, the open end being of similar shape to;
• but marginally larger than, the at least one end;
• and
• fastening means, where, when the developer roller is accurately positioned at a predetermined location within the developer housing, the at least one end extends into, but not through, the substantially circular opening and is received within the open end of the circular support, the circular support maintaining the accurate positioning of the developer roller at the predetermined location by way of a secure connection formed by the fastening means between the base portion and the developer housing.