system but preferably the printing system of this invention uses a printing method whereby a printing operation is performed along one horizontal line in the widthwise direction of a sheet and perpendicular to the vertical direction corresponding to the direction in which the sheet is moved and is carried out from one end of at least one line to the opposite end thereof in one printing operation movement further in this invention the printing operation movement for printing images on the sheet as described above is preferably performed in a short time and more preferably is performed instantly upon receiving a signal to start the printing operation on at least one line accordingly in this invention when one printing operation is finished i e at least one line is printed on the sheet the sheet is moved slightly in the sheet moving direction by a stepping movement of the pulse motor 12 under the control of a print controller and the printing operation is repeated namely in this invention as explained above the print control means 18 controls the printing operation of the printing means 16 in such a way that each printing operation thereof is synchronized with the stepping motion of the pulse motor the method of this printing system is exemplified in fig8 which shows the images printed along the three horizontal lines 801 802 and 803 of the sheet 200 intermittently moved in the transfer direction t in fig8 when the sheet 200 is moved in the printing means 800 by a stepping movement of the pulse motor 12.