Patent ID: 8494431

Claim:
A method of media sheet registration for a printing apparatus comprising: transporting a sheet of media including a leading edge and a trailing edge in a process direction between a first and a second sensor, the first and second sensors each having a linear sensing area with a longitudinal axis, the first sensor being spaced from the second sensor a distance along the process direction, wherein the longitudinal axis of the first and second sensors are aligned at a non-zero angle relative to each other, and the first sensor is adapted to identify the position of the leading edge and the second sensor is adapted to identify the position of the trailing edge, wherein the longitudinal axis of the first sensor forms a first angle relative to the process direction and the longitudinal axis of the second sensor forms a second angle relative to the process direction and the absolute difference between the first and second angles is in the range of 5 to 120 degrees; and adjusting an alignment of the sheet responsive to a sheet length as measured between the leading and the trailing edge determined using the output from the first and second sensors.