Patent ID: 9270837
Filing Date: 2016-02-23
CPC Classification: H04N

Claim Text:
1. A calibration member for use with an automatic document feed (ADF) scanner in calibrating a stationary image capture module thereof having an imaging surface against which a surface of a fed media sheet is scanned, the calibration member comprising: a body rotatably mountable about a pivot axis in the ADF scanner opposite the imaging surface, the body having an arcuate outer surface and a length substantially spanning a length of the imaging surface; a first background strip of a first thickness disposed on and extending along a first longitudinal portion of the outer surface of the body, a top surface of the first background strip having a first reflectivity; and a second background strip disposed on and extending along a second longitudinal portion of the outer surface of the body, the second background strip having a second thickness that is greater than the first thickness and having a top surface that is higher than the top surface of the first background strip, the top surface of the second background strip having a second reflectivity that is different than the first reflectivity, wherein, when the calibration member is mounted within the ADF scanner at the position opposite the imaging surface, the top surface of the second background strip wipes the imaging surface when the body is rotated about the pivot axis during positioning of the second background strip within a field of view of the image capture module during a calibration operation thereof.