HP Color 9850mfp Service Manual - Page 133

hp Color 9850mfp 11.2.4 Paper reverse control REGISTRATION/ADU/REVERSE/PAPER EXIT A. Paper reverse path (1) When conveying paper Paper conveyed from the reverse/exit roller 2 is conveyed to the ADU reverse roller according to the form of the conveyance path. [4] [3] [2] [1] II UNIT EXPLANATION [1] ADU paper reverse sensor (PS21) [2] ADU reverse roller [3] ADU conveyance roller 1 [4] Reverse/exit roller 2 (2) When paper reverse Paper conveyed to the ADU reverse section is sent back by the reverse rotation of the ADU reverse roller. At this time, it is conveyed to the ADU conveyance roller 1, not to the reverse/exit roller 2, according to the form of the conveyance path. As a result, the paper is flipped over out. The paper thus reversed is conveyed to the loop roller through the ADU conveyance rollers 1 and 2 and the ADU pre-registration roller to be copied on the back side. [8] [7] [6] [5] [4] [3] [2] [1] [1] Loop roller [2] ADU pre-registration roller [3] ADU conveyance roller 2 [4] ADU paper reverse sensor (PS21) [5] ADU reverse roller [6] ADU conveyance sensor (PS20) [7] ADU conveyance roller 1 [8] Reverse/exit roller 2 2-59