Lexmark Optra C710 Service Manual - Page 196
Service Manual, Paper Jam displays. The printer does not complete POR., Paper Feed
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5016-001 J 232 Paper Jam displays. The printer does not complete POR. FRU 1 Lower Duplex Unit Reverse Sensor (S4) 2 Lower Unit Paper Feed Sensor (S5) Action Check the voltages on the duplex lower unit reverse sensor on CN907. Pin # 1 (Red) 2 (Yellow) 3 (Green) Voltage Signal VL RVSN DGND Voltage Closed +5 V dc +5 V dc 0 V dc Voltage Open +5 V dc 0 V dc 0 V dc All voltages are approximate values. • If the voltage on pin 1 is incorrect, replace the duplex option controller board. • If the voltage on pin 2 does not change when the sensor is opened and closed, replace the FRUs in the following order: 1. Duplex lower unit reverse sensor 2. Duplex option controller board Check the voltages on the duplex lower unit paper feed sensor on CN905. Pin # 5 (Red) 6 (Blue) 7 (Green) Voltage Signal VL POSN DGND Voltage Closed +5 V dc +5 V dc 0 V dc Voltage Open +5 V dc 0 V dc 0 V dc All voltages are approximate values. • If the voltage on pin 5 is incorrect, replace the duplex option controller board. • If the voltage on pin 6 does not change when the sensor is opened and closed, replace the FRUs in the following order: 1. Duplex lower unit paper feed sensor 2. Duplex option controller board 2-130 Service Manual
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