| 摘要 |
PURPOSE: To precisely control the position and speed of a recording member by repeatedly scanning the part of the recording member by a sensor array, outputting a series of image signals representing an image provided by the recording member part with reference marks, and converting the image signals into a clock signal representing the speed of the recording member. CONSTITUTION: When the recording member 10 passes through the sensor array 86, the sensors 86 repeatedly scan the reference mark array and a detection array 85 is so operated as to output an image signal representing image contents of the part of the recording member 10 viewed by the sensor 86 in each scan, and the image signal is converted into a series clock pulses representing the position and speed of a relative constituent component so that the signals are used to synchronize the operation speed of a relative constituent component with the recording member 10. Consequently, the positions of paper and a photosensitive body can precisely be controller. |
