Lexmark C720 Service Manual - Page 201

5024-001 Once the test is complete, the power indicator turns On solid and a message displays. • "xxxx Bad Blocks/yyyyyy Usable" message displays if fewer than 2000 bad blocks are detected. xxxx indicates the number of bad blocks and yyyyyy indicates the number of usable blocks. • "xxxx Bad Blocks/Replace Disk" message displays if more than 2000 bad blocks are detected. The disk cannot be recovered because too many bad blocks exist on the disk. 2. Press Go or Return/Stop to return to the device tests menu. Flash Test This test causes the file system to write and read data on the flash to test the flash. WARNING: This test destroys all data on the flash because the flash is reformatted at the end of the test. To run the flash test: 1. Select Flash Test from the device tests menu. • The power indicator blinks while the test is running. • "Flash Test/Test Passed" message displays if the test passes and the power indicator turns On solid. • "Flash Test/Test Failed" message displays if the test fails and the power indicator turns On solid. 2. Press Go or Return/Stop to return to the device tests menu. Diagnostic Aids 3-15