Patent ID: 7753466

Claim:
A device for manufacturing a color printing, the device comprising: at least one printhead for making color pixels of a color printing by a first printing process, each printhead comprising N jets and M defective jets, wherein N represents a total number of all the jets and M represents a total number of the defective jets, M is less than N, wherein the at least one printhead has a first end and an opposite second end, and the N jets are numbered in sequence from the first end to the second end such that each of the N jets are assigned a respective jet number; a printhead identification unit for identifying defective jets to include within the N jets, determining the respective jet numbers of the M defective jets, and then outputting measurement information of the N jets and the M defective jets of each printhead; a host processor for receiving the measurement information from the printhead identification unit and outputting movement instructions of the at least one printhead with a starting position of the printhead in the first printing process; and a printhead motion and jetting control for receiving the movement instructions from the host processor and shifting the at least one printhead up with the starting position in the first printing process by a shifting distance such that replacement jets take the place of the M defective jets in each printhead, wherein the printhead motion and jetting control turns off all the jets except the replacement jets and makes the printhead carry out a second printing process on the color printing.