Method for Adjusting a Controller of a Scanner

A method for adjusting a controller of a scanner, wherein the scanner includes a scan bar having a substantially linear array of sensor elements each having an analog output, wherein the controller is adapted to generate sensor-element signals for each sensor element in order to extract the analog output of each sensor element based on a plurality of scanners, comprising:

• obtaining at least one noise-reducing heuristic for modifying at least one time parameter of at least one of the sensor-element signals;
• obtaining a set of repeated scans of a same scan line of an image;
• measuring noise of the sensor elements using at least the extracted analog outputs of each sensor element from the set of repeated scans;
• modifying the at least one time parameter of the at least one of the sensor-element signals corresponding to one of the at least one heuristic by one predetermined unit;
• obtaining an additional set of repeated scans of the same scan line of the image using the sensor-element signals;
• measuring noise of the plurality of sensor elements using at least the extracted analog outputs of the each sensor element from the additional set of repeated scans;
• repeating the modifying, the obtaining of an additional set of repeated scans and the measuring of noise until the noise measurement from the latest additional set of repeated scans is worse than the measure of noise from the second-latest set of additional repeated scans;
• repeating the modifying, the obtaining of an additional set of repeated scans and the measuring of noise until the noise measurement from the latest additional set of repeated scans is worse than the measure of noise from the second-latest set of additional repeated scans for each of the other of the at-least-one heuristic;
• and
• modifying the controller to acquire future scans of images with the at least one time parameter of the at least one of the sensor-element signals corresponding to each heuristic modified by a number of units corresponding to the second-latest additional set of repeated scans of the corresponding heuristic.

A method for adjusting a controller of a scanner, wherein the scanner includes a scan bar having a substantially linear array of sensor elements each having an analog output, wherein the controller is adapted to generate sensor-element signals for each sensor element to extract the analog output of each sensor element based upon a plurality of scanners, comprising:

• obtaining a noise-reducing heuristic which modifies a time parameter of one of the sensor-element signals;
• obtaining a set of repeated scans of a same scan line of an image;
• measuring noise of the plurality of sensor elements using at least the extracted analog outputs of each sensor element of the set of repeated scans;
• modifying the time parameter of the one of the sensor-element signals by one predetermined unit and repeating the obtaining a set of repeated scans and the measuring of noise;
• repeating the modifying of the time parameter, the obtaining a set of repeated scans and the measuring of noise until the noise from the latest set of repeated scans is worse than the noise measurement from the second-latest set of repeated scans;
• and
• modifying the controller to acquire future scans of images with the time parameter modified by a number of units corresponding to the second-latest additional set of repeated scans.