Lexmark C912 Service Manual - Page 172

5055-xxx • Staple Home Position-Activate the staple home position sensor by rotating the geared wheel inside the stapler clockwise. If the sensor is working properly, the display should change from CL to OP at approximately 180° of rotation of the wheel. • No Staple-Remove the staple cartridge to activate the no staple sensor. • Punch Box Detect-Remove the punch box and activate the punch box detector sensor level. • Invert Path-Activate by placing a piece of paper into the sensor (photo interrupter). • Tray 2 Exit-Remove tray 2 and activate the tray 2 exit sensor. • Elev. Upper Limit-Activate by pressing the paper full A and the paper upper level together. This causes the elevator motor to operate, allowing the sensor flag to clear the elevator upper limit sensor, thereby activating the sensor. • Elevator Lower Limit-Activate by inserting a piece of paper into the elevator lower limit sensor (photo interrupter). • Jogging Home Position-Activate by rotating the jogging motor wheel. • Pap. Upper Level-Activate by operating the paper upper level sensor flag. • Fin. Set Switch-Activate by inserting a non-conductive tool into the opening below the staple door. • Staple Cart. Set-Activate by removing then inserting the staple cartridge. 3-22 Service Manual