Lexmark 4049LMO Service Manual - Page 69

4049-XXX Error Log The error log records the last six "2X Paper Jam" or "9XX Service" errors. In a full log, position 6 is the oldest error. If more than six errors are received, the oldest error is discarded. If the same error occurs consecutively it is recorded only once. All 97X Network Card errors are logged as 977. 1. Enter Diagnostics mode. 2. Select [ERROR LOG]. 3. Select [CLEAR] and then [CONTINUE] to clear the error log. 4. Press Return to return to the Diagnostics mode main menu. Flash Test This test writes to and reads from the flash memory. It destroys all data stored in the flash SIMM. 1. Enter Diagnostics mode. 2. Select [DEVICE TESTS]. 3. Select [Flash Test]. The operator panel will display [Passed] or [Failed]. 4. Press Return to return to the Diagnostics mode main menu. Fuser Temperature And Warm-Up Time These settings allow adjustment of the fuser to correct problems with paper curl or melting letterheads. Paper curl in which the top and bottom of the page curl away from the printed side (hot paper curl) can be corrected by reducing the fuser temperature. Reduce the setting from Normal to No Boost; if necessary, reduce the setting further to Low Temperature. Verify that the toner is being adequately fused to the paper at the new temperature setting. Paper curl in which the edges of the paper curl toward the printed side (cold paper curl) can be corrected by increasing the fuser warm-up time. Use the lowest setting that corrects the problem. Setting "0" is the factory default and is the shortest warm-up time. Diagnostic Aids 3-8