Lexmark C782 Service Manual - Page 195

5061 Parallel Wrap Test Use this test with a wrap plug to check operation of the parallel port hardware. Each parallel signal is tested. To run the Parallel Wrap Test: 1. Disconnect the parallel interface cable, and install the wrap plug (P/N 1319128). 2. Select the Parallel Wrap Test from HARDWARE TESTS in the Diagnostics mode. The power indicator blinks, indicating the test is in progress. The test runs continuously until canceled. Each time the test finishes, the screen updates. If the test passes, the Pass Count increases by 1. However, if the test fails, one of the following messages appears for approximately three seconds: Sync Busy Error Byte Interrupt Request Error Strobe Interrupt Request Error Init Fail Error Init Busy Error Init Rise Error Host Busy Error RAM Data FF Error RAM Data AA Error RAM Data 00 Error RAM Data 55 Error DMA Count Error DMA Address Error DMA Interrupt Error DMA Memory Error DMA Background Error Clear Init Rise Error False Init Rise Error Autofeed Rising Interrupt Error Clear Autofeed Rise Error False Autofeed Rise Error Autofeed Falling Interrupt Error Clear Autofeed Fall Error Once the maximum count is reached the test stops, the power indicator goes on solid and the final results are displayed. Press Back ( ) or Stop ( ) to exit the test. Diagnostic aids 3-17