Hewlett-packard Development Company, L.p.

Ronald Slutz

Wade A Powell

Michael R Rusnack

Scott K Carter, Jr

A system and method include a printer input, a feedhead assembly, first and second sensors and a controller. The printer input is configured to hold a stack of media. The first sensor is coupled to the feedhead assembly and configured to measure at a first location of the stack of media. The second sensor is coupled to the feedhead assembly and is configured to measure at a second location of the stack of media. The controller communicates with the feedhead assembly and the first and second sensors to calculate a curvature of the stack of media in the input feeder.

Media stack measurement and method

A system and method includes a printing system assembly and controller. The printing system assembly is configured to separate media from a printer input during a separation time and then deliver it to a printer marking engine. The controller is configured to measure the separation time. The controller is further configured to adjust a plurality of parameter settings according to the measured separation time and according to the influence each of the parameter settings has on the separation time.

Printing system and method

The method of the invention corrects for a color shift in a color scan mechanism. The method initially senses plural component color data that is derived from the color scan mechanism. A determination is made of whether at least one color component value exhibits a value that exceeds a first threshold. The method also determines if another color component exhibits a value that exceeds a second threshold. If it is determined that both of the color components exceed the respective thresholds, then the one color component value is altered to a predetermined desired color value, so as to correct for color shift.

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Middleton, ID, United States of America

Ronald Slutz