HP — 1.2 Operation

PAPER FEED Q3228A 1.2 Operation 1.2.1 Single sided original mode A. Original feed operation The paper feed system is driven by the paper feed motor (M301). The registration clutch (MC301) func- tions as the brake to stop the registration roller, not to turn ON or OFF the drive force transmission. When M301 turns ON, the paper feed roller is pressed against the original set to the original feed tray. the original stopper goes up to the turnout position, and the paper feed roller and feed roller send the original II UNIT EXPLANATION to the registration roller. The original is struck against the reversing registration roller and M301 stops after the specified time.

Thus, a loop is formed before the registration roller to correct the skewed original. After M301 stops, MC301 turns OFF to release the registration roller. Then, M301 starts reversing operation, and the timing sensor (PS302) turns ON and stops after the speci- fied time. After that, M301 and conveyance motor (M302) start reversing at the same time to send the original to the conveyance belt (conveyance section). After PS302 turns ON by the original sent as described above, M301 stops after the specified time.

2-4 0 1 (sec) PS304 No sheet sensor No paper present Paper present PS301 Registration sensor No paper present Paper MC301 Registration clutch OFF ON M301 Paper feed motor CW300mm/s CW67mm/s Stop CCW300mm/s CCW710mm/s PS302 Timing sensor No paper present Paper present M302 Conveyance motor CW710mm/s Stop CCW138mm/s CCW300mm/s CCW710mm/s