Patent ID: 6532353
Filing Date: 2003-03-11
Classification: G03G

Abstract:
A mechanism for cleaning the surface of an operative element of a reproduction apparatus, said cleaning mechanism comprising:an elongated web of cleaning cloth material; a first support which provides a supply of said elongated web of cleaning cloth material, and a second support which provides a take-up for said elongated web of cleaning cloth material; a motor operatively coupled to said second support to drive said second support for selectively advancing of said elongated web of cleaning cloth material from said first support to said second support to provide a clean portion of said elongated web of cleaning cloth material to clean said operative element; an encoder, associated with said motor, for producing a string of pulses while said motor is operative to drive said second support; and a logic and control unit producing a signal for turning said motor on for a period of time establishing a web advancement cycle where a given predetermined number of pulses in a pulse string are produced by said encoder, and responsive to the actual number of pulses in said pulse string of an advancement cycle, adjusting said period of time that said motor is turned on in a subsequent advancement cycle based on said actual number of pulses in a previous string of pulses in order to adjust advancement of said web to provide for the most efficient use of said web of cleaning cloth material.