Patent ID: 6185385
Filing Date: 2001-02-06
Classification: G03G

Abstract:
A method for online establishment of print control parameters to print high quality prints using a xerographic printing process capable of producing a print control patch on a photoreceptor and sensing a value of the print control patch, the xerographic printing process having a plurality of sets of inherent performance characteristic values, the method comprising the steps of:starting the xerographic printing process;interrupting the xerographic printing process;selecting a set of inherent performance characteristic values from the plurality of sets of inherent performance characteristic values;providing a target value and the selected set of inherent performance characteristic values;producing the print control patch on the photoreceptor based upon the target value and the selected set of inherent performance characteristic values;sensing a value of the print control patch and associating the sensed value with the selected set of the inherent performance characteristic values;reading and storing the sensed value associated with the selected set of the inherent performance characteristic values;repeating the selecting, providing, producing, sensing, reading and storing steps by selecting another one of the plurality of sets of inherent performance characteristic values until each set of the plurality of sets of inherent performance characteristic values is associated with a stored sensed value;extracting a control value for each stored sensed value and the associated set of inherent performance characteristic valuesstoring the control value associated with each stored sensed value and the associated set of inherent performance characteristic values;providing the control value that is most closely associated with the target value to the xerographic printing process; andresuming the xerographic printing process to print high quality prints using the associated control value.