Abstract: An eccentric wheel and an inkjet printer including the eccentric wheel are provided. The eccentric wheel includes two groups of eccentric wheel bodies, mounted on a base of a trolley and configured to drive a print head to move backward and forward and move leftward and rightward in a print head groove. A distance from an outer edge to a rotation center of each of the eccentric wheel bodies is gradually changed. The outer edge of each of the eccentric wheel bodies is in contact with a side edge of the print head. One group of the eccentric wheel bodies are arranged in a forward and backward movement direction of the print head, and the other group of the eccentric wheel bodies are arranged in a leftward and rightward movement direction of the print head.

Abstract: An eccentric wheel and an inkjet printer including the eccentric wheel are provided. The eccentric wheel includes two groups of eccentric wheel bodies, mounted on a base of a trolley and configured to drive a print head to move backward and forward and move leftward and rightward in a print head groove. A distance from an outer edge to a rotation center of each of the eccentric wheel bodies is gradually changed. The outer edge of each of the eccentric wheel bodies is in contact with a side edge of the print head. One group of the eccentric wheel bodies are arranged in a forward and backward movement direction of the print head, and the other group of the eccentric wheel bodies are arranged in a leftward and rightward movement direction of the print head.

Abstract: A nozzle mount arrangement includes a substrate and a plurality of nozzle assemblies evenly distributed in a length direction of the substrate. The nozzle assembly includes a spray tongue connected to the substrate, a plurality of nozzles evenly distributed in a length direction of the spray tongue, and a locking mechanism provided on the spray tongue for pressing the spray tongue and the nozzle. An inkjet printer includes said nozzle mount arrangement. The nozzle mount arrangement and the inkjet printer have multiple nozzles on the spray tongue, thus the number of spray tongues is reduced, thereby reducing the assembly and maintenance costs of the spray tongues.