Glenn D Wildfong

US Patent:

58036245, Sep 8, 1998

Filed:

Aug 31, 1995

Appl. No.:

8/522738

Inventors:

Jay M. Miazga - Marysville WA
Thomas A. Sweet - Everett WA
Glenn D. Wildfong - Woodinville WA

Assignee:

Intermec Corporation - Everett WA

International Classification:

B41J 2116

US Classification:

400103

Abstract:

A label printer having a stepping motor and the ability to dynamically accurately control longitudinal label registration as a function of steps of the stepping motor. The effective length of the steps moving the labels between a known point prior to the printhead and the printhead are monitored and the number of steps actually used to move the labels between the known point and the printhead are adjusted as a function of changes in the effective step length. In one embodiment, a sensor counts the steps between consecutive labels or averages a number of labels to determine the effective step length. In another embodiment, a sensor detects the start of label and start of printing on the label and the step distance between the two is used to determine the effective step length.