Lexmark Optra E Service Manual - Page 51
Diagnostic Information 2-29, Board/Sole
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4026-0XX FRU Action 2 Paper Lift Check the lift plate assembly, release button, Plate Assem- button spring, release arm and all related hard- bly ware for proper operation. Be sure the lift plate D-roll pad mounted on the top of the lift plate is not worn, contaminated or missing. Repair as necessary. 3 Paper Empty Check the paper sensor flag for damage and Sensor Flag proper operation. Repair or replace as neces- sary. 4 Paper Empty Be sure the voltage at CN9-4 on the engine Sensor board is between +4.5 V dc and +5.5 V dc. If incorrect, replace the engine board. If correct, check the voltage at CN9-6. The voltage changes from approximately +2.00 V dc to 0 V dc as you manually move the sensor flag in and out of the sensor. If incorrect, be sure tray two cable measures continuity. If incorrect, replace the cable. If correct, replace the tray two sensor board. 5 Second Be sure the solenoid cable is connected to the Paper Tray paper sensor board cable and the cable is prop- Solenoid/ erly connected to the sensor board. Engine Board/Sole- Disconnect CN9 at the engine board. The volt- noid Cable/ age measures approximately +24 V dc at Tray Two CN9-1. If incorrect, replace the engine board. If Cable correct, reconnect CN9 and measure the volt- age again at CN9-1. If the voltage continues to be incorrect, check the resistance of the sole- noid at the solenoid cable connector which mea- sures from 60 to 90 ohms. If incorrect, replace the tray two solenoid. If correct, be sure the solenoid to sensor board cable measures conti- nuity. If incorrect, replace the sensor board and cable assembly. If correct, be sure the tray two to engine board cable measures continuity. If incorrect, replace the cable. If correct, replace the tray two sensor board. Diagnostic Information 2-29