Lexmark T430 Service Manual - Page 105
Sensor Test, Return, Duplex Feed 1
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4048-1xx Sensor Test This test is used to determine whether or not the duplex sensors and switches are working correctly. 1. Select Sensor Test from the Duplex Tests menu. 2. Manually actuate each of the duplex sensors. Sensor Test Testing... When the sensor/switch is closed, CL (closed) displays, when the sensor/switch is open, OP (open) displays. Sensor Test Input=OP Input refers to the duplex input sensor in the duplex unit. 3. Press Return or Stop to exit the test. Duplex Feed 1 This test feeds a blank sheet of paper to the duplex paper stop position 1. To run the Duplex Feed 1 Test: 1. Select Duplex Feed 1 from the Duplex Test menu. The power indicator blinks while the paper is feeding. Duplex Feed 1 Feeding... 2. When the paper reaches the duplex paper stop position 1, the power indicator turns on solid and a message appears: Duplex Feed 1 Clear Paper... 3. Remove the paper and press Go, Return, or Stop to end the test. Diagnostic aids 3-11