Method, apparatus, device and system for correction of encoder runout

A method for correcting for encoder runout associated with a printing device comprising:

• loading a firing distance into a distance counter of the printing device, the firing distance being a distance from a current position of a printhead of the printing device to a marking location on a substrate;
• the distance counter counting the firing distance in discrete distance increments using encoder runout distance data based on a clock count between discrete angular positions of a transport roller and representative of distances between discrete angular positions of a transport roller operatively associated with the printing device, based on relative movement of said substrate and said printhead;
• loading a fractional remaining distance of the firing distance into a time counter of the printing device when the distance counter reaches a last discrete distance increment of the firing distance;
• counting the fractional remaining distance based on velocity-based calculated distance increments at regular time intervals using the time counter;
• and
• transferring material from the printhead to the substrate when the time counter reaches a last velocity-based distance increment of the fractional remaining distance.

A method for correcting for encoder runout associated with a printing device comprising:

• loading a firing distance into a distance counter of the printing device, the firing distance being a distance from a current position of a printhead of the printing device to a marking location on a substrate;
• the distance counter counting the firing distance in discrete distance increments using encoder runout distance data based on a clock count between discrete angular positions of a transport roller and representative of distances between discrete angular positions of a transport roller operatively associated with the printing device, based on relative movement of said substrate and said printhead;
• loading a fractional remaining distance of the firing distance into a time counter of the printing device when the distance counter reaches a last discrete distance increment of the firing distance and adding a next firing distance of a subsequent marking location and the fractional remaining distance to the distance counter;
• counting the fractional remaining distance based on velocity-based distance increments at regular time intervals using the time counter;
• transferring material from the printhead to the substrate when the time counter reaches a last velocity-based distance increment of the fractional remaining distance;
• and
• repeating the counting of the firing distance, the loading of the fractional remaining distance, the counting of the fractional remaining distance, and the transferring of the material for the subsequent marking location.