Lexmark C912 Service Manual - Page 164

5055-xxx Parallel Wrap Test The Parallel Wrap Test checks the operation of each parallel signal, using a wrap plug. To perform the wrap test: 1. Disconnect the parallel interface cable, and install the parallel wrap plug. 2. Select HARDWARE TESTS from the Diagnostics Menu. 3. Select Parallel Wrap to initiate the Parallel Wrap Test. 4. Select the appropriate Parallel Wrap Test (Parallel Wrap, Parallel 1 Wrap). The printer begins testing the parallel hardware and the following message is displayed: Parallel Wrap P:##### F:##### Terminology: P:###### represents the number of times the memory test finishes successfully. Initially 000000 displays for ######. The maximum pass count is 999,999. F:##### represents the number of times the memory test finishes with errors. Initially 00000 displays for #####. The maximum fail count is 99,999. The power indicator blinks indicating the memory test is in process. The printer continually runs the same test until canceled from the operator panel by pressing Return or Stop. Each time the test finishes, the screen is updated with the result. If the test is successful, the Pass Count increments by 1. 3-14 Service Manual