Patent ID: 8851664

Claim:
A marking station maintenance apparatus comprising: a cart frame moveable along a rail support track for passing a marking station, the marking station configured to mark a substrate media sheet; a first motion support assembly facilitating motion of the cart frame along at least a first portion of the rail support track, the first motion support assembly extending from the cart frame, the first motion support assembly including a glide surface providing a non-contact bearing support between an air-bearing surface of the first portion of the rail support track and the glide surface; a marking station cleaner disposed on the cart frame and configured to clean a marking element of the marking station as the cart frame passes the marking station; and a second motion support assembly facilitating motion of the cart frame along at least a second portion of the rail support track, the second motion support assembly directly engaging the second portion of the rail support track during movement thereon, the second motion support assembly being disengaged from the rail support track when the first motion support assembly provides the non-contact bearing support.