Lexmark C520 Service Manual - Page 85

5022-xxx Motor tests The motor tests are run primarily to locate noises in the printer. General motor tests In some instances, when you enter a particular test, you will be given the choice to run the motor in forward or reverse. Other times, there will only be the option to run the motor in forward direction. Before you run any particular motor test, ensure you have configured the printer as directed in the following table: Motor test Setup requirements Top access cover Front access door Align Motor Test Closed Fuser Closed Tray 1 Not applicable Tray 2 Not applicable Closed Closed Not applicable Not applicable Bottom cartridge Top cartridge Transfer Closed Closed Closed Open Open Open Notes Select Forward or Reverse. Select Forward or Reverse. Remove all paper from the input source tray to avoid paper jams while performing this test. Select Forward or Reverse. 1. Close the top access cover and front access door. 2. Enter MOTOR TESTS. 3. Open the top access cover and front access door, activate the top right bellcrank by hand, close the top access cover. 4. Remove the toner cartridges if you plan to test for any length of time. 5. Run the desired motor tests. To finish: 1. Open the top access cover. 2. Deactivate the top right bellcrank 3. Close the top access cover and the front access door. To run the motor tests: 1. Select MOTOR TESTS from DIAGNOSTICS. 2. Select the motor that you need to test, and press Select ( ). 3. Select the direction if a choice is offered (Forward or Reverse). Press Select ( ). 4. Press Stop ( ) to end the test. Mirror Motor Test 1. Select MOTOR TESTS from DIAGNOSTICS. 2. Select Mirror Motor Test. The panel displays Mirror Motor Test. After the test completes, the panel displays either Pass or Fail. To stop the test, press Stop ( ). 3-8 Service Manual