Patent ID: 6416148
Filing Date: 2002-07-09
Classification: B41J

Abstract:
A method for improving the print quality of a printer, the printer comprising:a print head for forming a pixel according to a firing signal; a stepping motor for moving the print head from a first location to a second location, the movement of the print head controlled by a control signal sent to the stepping motor to micro-step the stepping motor; and a timer to provide timing synchronization between the control signals and the firing signals; the method comprising:obtaining a delay interval list comprising a plurality of firing offset intervals, each firing offset interval corresponding to a micro-stepping position of the stepping motor; sending a plurality of control signals so that the print head micro-steps from the first location to the second location; and for each control signal, utilizing the timer to provide a firing signal at a time interval that is spaced from the control signal according to the firing offset interval corresponding to the control signal so that the print head forms a plurality of pixels, each pixel formed on a desired location.