Patent ID: 9044929
Filing Date: 2015-06-02
Classification: B41F,B41P,H05K

Abstract:
1. A printing apparatus comprising: a base; a frame member fixedly installed on the base; a printer supported by the frame member to subject a board to printing; a board conveyer provided on the base displaceably within a range including a printing zone where the printing is performed by the printer, to convey the board; a driver for driving the board conveyer; a controller configured to control the driving of the board conveyer by the driver; a mark provided on the frame member; and an image pickup section mounted on the board conveyer to pick up an image of the mark, wherein the controller is configured to cause the board conveyer to be displaced so as to allow the board to be set in the printing zone, and, based on the image of the mark picked up by the image pickup section, to perform a strain compensation for correcting an error in displacement of the board conveyer due to a strain of the driver, the image pickup section comprises an illuminator capable of emitting illumination light toward the mark, the frame member has a background plate disposed adjacent to the mark, and the controller is configured to adjust a luminance of the illumination light based on an image of the background plate picked up by the image pickup section together with the image of the mark.