Abstract: The factors, such as the working status of machine, the tension of tape drum and the density of cut tobacco, will affect the print position on cigarette in ZJ17 cigarette maker. Therefore, a color mark sensor and negative feedback were adopted to monitor and control the print position real-timely. The comparative experiments showed that with the original print control system and setting print position deviation to 3 mm, the effect of print control at each running stage basically unchanged;with the color mark negative feedback control system, setting the print position deviation to 5 mm, the deviation diminished from 5 mm at starting stage, to 4 mm at constant speed of 3000 or 7000 cigs.per minute, to 1 mm at acceleration stage and deceleration stage. It indicated that the closed-loop negative feedback control system could effectively adjust print position deviation.