Abstract: In a method for printing on a print media using nozzles in a printhead, it is determined as to whether one or more of the nozzles are out. In response to the one or more of the nozzles being out, the print media is micro-linefed between at least two printing passes of the printhead when the printhead is substantially in position to print onto a margin section of the print media. The micro-linefeeding includes activation of a print media feed means to advance the print media for a distance that is substantially smaller than a normal advance of the print media, to thereby reduce printing defects in the margin section caused by one or more nozzles that are out.

Abstract: In a method for detecting an encoder material reading error, at least one of a sensor and an encoder material is slewed with respect to each other. Markers on the encoder material are detected with the sensor as at least one of the sensor and the encoder material is slewed with respect to each other to obtain position vs. time data of the sensor with respect to the encoder material. The position vs. time data is analyzed to determine whether a speed at which at least one of the sensor and the encoder material travels with respect to each other fell below a predetermined threshold. In addition, a determination that an encoder material reading error has occurred is made in response to a determination that the speed fell below the predetermined threshold.

Abstract: In a method for printing on a print media using nozzles in a printhead, it is determined as to whether one or more of the nozzles are out. In response to the one or more of the nozzles being out, the print media is micro-linefed between at least two printing passes of the printhead when the printhead is substantially in position to print onto a margin section of the print media. The micro-linefeeding includes activation of a print media feed means to advance the print media for a distance that is substantially smaller than a normal advance of the print media, to thereby reduce printing defects in the margin section caused by one or more nozzles that are out.