Lexmark C750 Service Manual - Page 290

5060-00x S2/NMS/transparency sensor assembly removal The S2, narrow media sensor (NMS), and transparency sensor are bundled into a sensor cable assembly. See "S2/transparency/narrow media sensor assembly" on page 7-17 for the part number. Removing the old assembly Note: Disconnect all power from the printer before proceeding with the steps below. 1. 2. 3. 4. 5. Open the front cover and remove the print cartridges. Open the multipurpose feeder (MPF) door. Remove the ITU assembly. Remove the right rear cover. Disconnect connector J70 (A) to the MPF sensor from the system board. B A C D 6. Remove the screws from transfer high voltage power supply (C) and lay it down out of the way. 7. Cut the cable tie (D) which holds the cable bundle so you can remove the sensor cable assembly. Cut any cable tie restraining the cable to J68. Note: Note the location of any cable ties so they can be replaced later. Warning: Use care not to cut or nick any cables when removing the cable ties. 8. Disconnect J68 (B) from the engine board. 9. Cut the connector J68 off the old sensor cable assembly to make removal easier. 4-72 Service Manual