Lexmark W820 Service Manual - Page 89

4025-Finisher Service Error Code Service Checks 980 - Error Code Service Check Logic control sensed that there is a communication problem between the printer and the Finisher. Step Actions and Questions Yes 1 RESET Problem Switch off the printer and the Finisher. Wait one minute, then solved switch on the printer and the Finisher Is the error code gone? 2 RESEAT Disconnect then reconnect the Finisher from the printer. Is the error code gone? Problem solved 3 FINISHER MAIN BOARD Problem Replace the Finisher Main Board. Go to "PWB Assembly- solved Main Removal" on page 4-132. Check the Stapler function. Does the Stapler function correctly? 4 MCU BOARD Problem Replace the MCU Board. Refer to the Printer Service Manual. solved Check the Stapler function. Does the Stapler function correctly? 5 The following Finisher FRUs and areas are associated with this specific problem. One or more of these FRUs or areas may have failed partially or completely. If you cannot isolate this problem using these steps, replace each FRU or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. • Wiring and connectors linking the FRUs 981 - Stacker Tray Service Check Logic control sensed that there is a problem with the Stacker Tray. No Go to step 2 Go to step 3 Go to step 4 Go to step 5 Step Actions and Questions Yes No 1 STACKER TRAY INSPECTION Inspect the position of the Stacker Tray. Has the Tray actuated the Stacker Height Sensor? Go to step 3 Go to step 2 2 SENSOR TEST Go to step 4 Go to step 3 Enter Diagnostics and check the Stacker Tray Position Sensor function. Insert then remove a sheet of paper into the sensor. Does the Operator Panel LCD change between OP and CL as you insert then remove the paper? Diagnostic Information 2-29