Patent ID: 7673876

Claim:
A method comprising: performing a calibration operation for adjacent sheet transport devices within a sheet transport path of a printing device, said performing of said calibration operation comprising: transporting a test sheet along said path; when said test sheet is simultaneously transported by both a first transport device and a second transport device adjacent to said first transport device in said path, using a constant power mode to operate said first transport device and further using a constant velocity mode to operate said second transport device at a predetermined velocity; and during said constant power mode operation of said first transport device, determining a calibration velocity of said first transport device; and performing at least one printing operation using said printing device, said printing operation comprising: transporting a print sheet along said path; and when said print sheet is simultaneously transported by both said first transport device and said second transport device, using said constant velocity mode to operate said first transport device at said calibration velocity, as determined during said calibration operation, and further using said constant velocity mode to operate said second transport device at said predetermined velocity.