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K Service Source ImageWriter LQ K Service Source Basics ImageWriter LQ Basics General Information - 1 General Information Paperless Printer Microviewer This manual contains only the Specifications, Symptom Charts and the Illustrated Parts List chapter for the Troubleshooting ImageWriter LQ. The rest of the procedures are in the form of a Paperless Printer file located in the Printables folder. Take Apart Adjustments K Service Source Troubleshooting ImageWriter LQ Troubleshooting General/ - 1 General The Symptom Charts included in this chapter will help you diagnose specific symptoms related to your product. Because cures are listed on the charts in the order of most likely solution, try the first cure first. Verify whether or not the product continues to exhibit the symptom. If the symptom persists, try the next cure. (Note: If you have replaced a module, reinstall the original module before you proceed to the next cure.) If you are not sure what the problem is, or if the Symptom Charts do not resolve the problem, refer to the Flowchart for the product family. For additional assistance, contact Apple Technical Support. Troubleshooting Symptom Charts /Power - 2 Symptom Charts Power Power light off and no 1 Check external power source and connection. carrier motion 2 Verify the setting of voltage selector switch (International units only). 3 Test primary fuse, and replace if defective. 4 Test three secondary fuses, and replace any defective fuses. 5 Test power switch, and replace if defective. 6 Replace main board. 7 Replace transformer. 8 Replace noise filter PCA. Troubleshooting Symptom Charts /Communication - 3 Communication No printing or 1 Make sure printer is selected in Chooser. garbled printing 2 Verify correct DIP switch settings. 3 Verify that interface cable between printer and computer is tightly connected. 4 Perform printer self