Noise-free silencer assembly

A noise-free silencer assembly for reducing self-vibration noises, and screeching noises between a cleaning blade and an imaging member of an electrostatographic reproduction machine, the noise-free silencer assembly comprising:

• (i) at least a partially compressed high density polymeric open cell foam for insertion into a portion of an interior cavity of a C-shaped cross-section member;
• and
• (ii) a C-shaped cross-section member having longitudinal axis, a wall defining an interior cavity for containing said at least a partially compressed high density polymeric open cell foam, and a slot formed in said wall extending generally longitudinally and at an angle to said longitudinal axis of said C-shaped cross-section member, for reducing self-vibration noises and screeching noises between a cleaning blade and an imaging member of an electrostatographic reproduction machine.

A noise-free silencer assembly comprising:

• (a) a first hollow tube member including a wall having a thickness, an exterior surface and an interior surface defining an interior cavity having a predetermined inside diameter, said first wall having a hinge recess extending generally longitudinally and at an angle to said longitudinal axis of said C-shaped cross-section member;
• and
• (b) a slot formed in said wall extending generally longitudinally for preventing alignment between said recess and said slot, thereby preventing self-vibration noises in said silencer assembly.