A printing apparatus including a pallet configured to receive a print substrate, a conveyer mechanism configured to convey the pallet, and a working device configured to conduct a processing operation for printing on the print substrate on the pallet. The printing apparatus further includes a locating mechanism configured to stop the pallet at a first holding position and a first holding mechanism configured to hold the pallet, stopped at the first holding position by the first locating mechanism, to be spaced apart from the conveying mechanism. After the pallet being conveyed by the conveying mechanism is stopped by the first locating mechanism, the pallet is held to be spaced apart from the conveying mechanism by the first holding mechanism and the processing operation is conducted by the working device relative to the print substrate on the pallet thus held.