6 - 345. Flow of printing data5.1 Data flowPrinting data (electric signal) output from printer controller becomes the printed image followingthe flow shown below.Reference Forming 2 dimensional printed imageWhen the image is scanned by turning ON/OFF the laser beam according to electric signaloutput from printer controller (VIDEO signal: expresses image data by rise or fall ofvoltage), a dot image for a line is formed.When the above mentioned scanning is carried out for 1 screen of an image, a single colorimage (2 dimensional dot image) is formed. To obtain a full color image, a 2 dimensionaldot image must be formed for each of the 4 colors.Resolution is determined by the following points.Main scanning direction: Number of dots/inchSub scanning direction: Number of scanning lines/inchLeg_Sec06_033FBHost (electric signal)Printer controller (electric signal)ROS ASSY (laser beam)Toner image on paperPrinted image on paperToner image on drum (toner image)Electrostatic latent image on drum(invisible image)Toner image on belt(intermediate transfer belt)Leg_Sec06_034FAPaper feeding direction Number of dots/inchNumber of scanninglines/inchChapter 6 Principles of Operation
