3.3.6 Removal of red screws prohibitedSince adjustment of the following red screws is very difficult in the field, they mustnot be loosened or removed.(a) The two paper spacing red screws (one on the right and left).(b) The two screws securing the paper feed motor (S750 only)3.3.7 Installing the logic board coverIf the logic board cover is installed incorrectly, the logic board and paper feed rollerswill be obstructed and the ASF motor may go out of sync.Note that prong A is prone to engage incorrectly. Make sure that it fits in properly.Part 2: Troubleshooting S900 / S820 / S750 / S5202-18abaAFigure 2-8 Installing the Logic Board CoverFigure 2-7 Do not Remove the Red Screws
