Patent ID: 6325480
Filing Date: 2001-12-04
Classification: B41J

Abstract:
An ink jet printer capable of forming a plurality of registration marks on a receiver and sensing the marks formed thereby, comprising:(a) a print head for printing a plurality of lines comprising a band of image information, including a first line and a last line, across a width-wise dimension of the receiver in a single pass to form a portion of an image on the receiver, the receiver having an image area for receiving the image therein and a border area adjacent to the image area;(b) a marker disposed near said print head for forming the plurality of registration marks in the border area, the plurality of marks extending along a length-wise dimension of the image, adjacent registration marks in the length-wise dimension being spaced closer than a spacing between the first and last lines of image information;(c) a sensor disposed near said print head and in sensing relationship to the registration marks for sensing the registration marks; and(d) a controller that adjusts position of the receiver relative to the printhead in the length-wise dimension direction of the printhead in response to sensing of the registration marks.