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You are right, it is very likely!. These type of scanners either use multiple cameras or use multiple mirrors to break a segment into a focussable area and do electronic stitching. (Electronic stitching is another painful area, the scanner has to 'create' a true image removing duplicate pixels). Also with Lens there is focal length aberration. Please note even the brochure carries the statement, "Torsion stabilised" suggesting that it is succeptible for misalignment. The mirrors are kept in position by rubber pads and tiny springs, but rubber pads being sensitive atmospheric variations, there can be focussing issues. Unfortunately you cant even kick the scanner accidentally or on purpose!
These type of scanners use multiple cameras/multiple mirrors to scan a single line. They also perform electronic stitching. If the mirrors are misalighned during transportation, it is a serious problem.Aligning them at the field level is rather difficult.