Patent ID: 7630653

Claim:
A method for adjusting image on paper (IOP) misregistration in a printing device, the method comprising: (A) receiving a substrate marked with a test pattern, the test pattern having at least one feature, and the marked substrate including at least two features including the at least one feature of the test pattern; (B) sensing in a first sensing operation, as the substrate is transported in a process direction along a transport path, a first feature of the at least two features of the marked substrate; (C) sensing in a second sensing operation, as the substrate is transported in the process direction along the transport path, a second feature of the at least two features of the marked substrate, wherein at least one of the first and second features is included in the at least one feature of the test pattern; (D) measuring a time differential between the sensing of the first and second features; and (E) determining an IOP misregistration characteristic based at least on the measured time differential; (F) generating a correction control signal corresponding to the determined IOP misregistration characteristic; (G) providing the correction control signal to at least one of an image forming engine and a marking engine for adjustment of the IOP registration; (H) performing steps (A)-(G) using a first substrate marked with a first test pattern, wherein the IOP misregistration characteristic is image skew; and (I) performing steps (A)-(E) using a second substrate marked with a second test pattern, wherein the IOP misregistration characteristic determined is image offset in one of the process direction and a cross-process direction.