Patent ID: 6377761
Filing Date: 2002-04-23
Classification: G03G

Abstract:
A method for measuring a width of a contact zone between a photoreceptor, having movement, and a non-retracting cleaner brush, having a detoning member, the photoreceptor having a toner image thereon, the contact zone having particles of the toner image removed from the photoreceptor, comprising:developing the toner image on the surface, the toner image having sufficient width to overlap the cleaner brush; moving the toner image into direct alignment with the cleaner brush; stopping the movement of the photoreceptor and then resynchronizing to help get the image onto a substrate; rotating the cleaner brush against the photoreceptor to remove the toner image from the photoreceptor in the contact zone; moving the toner image out of direct alignment with the cleaner brush; transferring the toner image from the photoreceptor onto the substrate; fusing the toner image on said substrate; measuring the entire width extending in the process direction of the cleaned areas on said fused image; and converting the measurement of said width for diagnostic analysis and process control.