Diagnostic information 2-107Service checksSensor (input) service checkSensor (fuser output) service checkStep Check Yes No1 Check the sensor (input) for damage.Is the above component free from damage?Go to step 2. Replace thesensor (input).2 1. Enter the diagnostic mode2. Select Base sensor test4. Observe the line item “input”Does the display on the operator panel, change every timethe sensing area of the above sensor is interrupted orblocked.The sensor isworking properly Go to step 2.3 Check the above sensor for proper connection.Is the above sensor connected properly?Replace theSensor (input). Replace theconnection.Step Check Yes No1 Check the sensor (fuser output) for damage.Is the above component free from damage?Go to step 2. Replace fuser unitassembly.2 1. Enter the diagnostic mode2. Select Base sensor test4. Observe the line item “exit”Does the display on the operator panel, change every timethe sensing area of the above sensor is interrupted orblocked.The sensor isworking properly Go to step 2.3 Check the above sensor for proper connection.Is the above sensor connected properly?Replace the fuserunit assembly. Replace theconnection.Go to “Sensor(input) removal”on page 4-42.(input) removal”Go to “Sensoron page 4-42.Go to “Fuser unitassemblyremoval” onpage 4-15.Go to “Fuser unitassemblypage 4-15.removal” on