Patent ID: 8528717

Claim:
A printing apparatus comprising: a pallet configured to receive a print substrate; a conveyer system configured to convey said pallet; a plurality of work mechanisms arranged along a pallet conveying direction of said conveyer system, said work mechanisms being configured to conduct processing operations to the print substrate, said plurality of work mechanisms including at least a printing station having a printer configured to eject ink from a nozzle onto a surface of the print substrate; and delivering mechanisms that are disposed on both ends of said conveyer system, wherein said conveyer system comprises: an upper conveyer mechanism configured to sequentially convey said pallet to respective working positions of said work mechanisms, and a lower conveyer mechanism arranged below and along said upper conveyer mechanism, said lower conveyer mechanism being configured to convey said pallet in a direction opposite to the pallet conveying direction of said upper conveyer mechanism so that said conveyer system is structured to have an upper stage and a lower stage, wherein said delivering mechanisms are configured to deliver said pallet between said upper conveyer mechanism and said lower conveyer mechanism, wherein said conveyer system is composed of a plurality of conveyer units each of which has said upper conveyer mechanism and said lower conveyer mechanism for each of said work mechanisms and which are abutted to allow delivery of said pallet between the conveyer units, wherein said conveyor units of said plurality of conveyer units are separate from one another, said delivering mechanisms being separate from said plurality of conveyer units, wherein said plurality of conveyer units and said delivering mechanisms each include a frame provided on a plurality of wheels, and wherein said plurality of wheels has locking mechanisms.