Lexmark T642 Service Manual - Page 187

4061-xx0 Disk Test/Clean Warning: This test destroys all data on the disk and should not be attempted on a good disk. Also note that this test may run approximately 1½ hours depending on the disk size. To run the Disk Test/Clean Test: 1. Select Disk Test/Clean from the Device Tests menu. Files will be lost/Go or Stop? message displays to warn the user that all contents on the disk will be lost. 2. To exit the test immediately and return to the Device Tests menu, press Back ( ) or Stop ( ). To continue with the test, press . If is selected, the following screen displays and updates periodically indicating the percentage of test completed. Formatting Disk 1/1 0% DO NOT POWER OFF The power indicator blinks during the test. Note: The test can NOT be canceled. 3. Once the test is complete, the power indicator turns on solid, and either the message Disk Test/Clean Test Passed or Disk Test/Clean Failed appears. If the message indicates failure, the disk is unusable. Flash Test This test verifies the functioning of the flash device by writing and reading data on the flash to test the flash. Warning: This test destroys all data on the flash because the flash is unformatted at the end of the test. To reformat the flash, the servicer or the user must use FORMAT FLASH from the UTILITIES MENU. To run the Flash Test: 1. Select Flash Test from DEVICE TESTS. The message Files will be lost/Go or Stop? displays to warn the user that all contents on the flash device will be lost. 2. To exit the test immediately and return to the Device Tests menu, press Back ( ) or Stop ( ). To continue with the test, press . The power indicator blinks while the test is running, and the message Flash Test Testing... displays. Once the test is complete, the power indicator turns on solid, and either the message Flash Test Test Passed or Flash Test Test Failed displays. 3. Press Back ( ) or Stop ( ) to return to DEVICE TESTS. Diagnostic aids 3-19