Printing apparatus

摘要

A printing apparatus is provided which can prevent foreign matters such as ink adhering to the surface of the conveying belt from getting transferred to other constitutional components. When the conveying belt is rotating in one direction, the foreign matters adhering to the surface of the conveying belt is removed by the wiper. When the conveying belt rotates a predetermined distance in the opposite direction, the pinch roller, the electric charge removing roller and the electric charge supply roller that are in contact with the belt surface are disengaged from the surface of the conveying belt. The predetermined distance is set equal to a rotating distance that the conveying belt rotates until a portion of the surface of the conveying belt, which was in contact with the wiper, comes into contact with the pinch roller, the electric charge removing roller and the electric charge supply roller.

主权项

1. A printing apparatus comprising:
a conveying belt configured to convey a print medium in a first direction and in a second direction opposite to the first direction; a printing unit configured to perform printing by ejecting ink onto the print medium conveyed by the conveying belt in the first direction, the printing unit performing marginless printing on the print medium; a pinching member located on the upstream side of the printing unit with respect to the first direction and configured to nip the print medium in cooperation with the conveying belt, the pinching member being movable between a first position in which the pinching member nips the print medium in cooperation with the conveying belt and a second position in which the pinching member is disengaged from the conveying belt; a moving unit configured to move the pinching member between the first position and the second position; and a control unit configured to control the moving unit, when the print medium is conveyed a moving distance in the second direction by the conveying belt, on the basis of the moving distance of the conveying belt and a distance between an ink ejected position on the conveying belt where the ink is ejected during the marginless printing and the location of the pinching member.