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7 Troubleshooting Contents General Troubleshooting Flowchart . . Paper Path and Components . . . . . . DC Controller Diagram . . . . . . . . Printer Error Troubleshooting . . . . . Priority of Errors . . . . . . . . . . Printer Status Messages . . . . . . . Service and Error Messages . . . . Image Formation Troubleshooting . . Check the Toner Cartridge . . . . . Image Defect Examples . . . . . . Troubleshooting Checks . . . . . . . . Engine Test . . . . . . . . . . . . . Half-Self Test Functional Check . . Drum Rotation Functional Check . High-Voltage Power Supply Check Paper Curl . . . . . . . . . . . . . . Troubleshooting Tools . . . . . . . . . Paper Path Check . . . . . . . . . . Repetitive Image Defect Ruler . . . Main Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3 7-5 7-6 7-7 7-7 7-8 7-10 7-13 7-13 7-14 7-21 7-21 7-22 7-23 7-24 7-26 7-27 7-27 7-28 7-29 Troubleshooting 7-1 7-2 Troubleshooting General Troubleshooting Flowchart When the AC power is first applied to the printer: START · Both the printer motor and the laser/scanner motor rotate for 6 seconds. · All of the LEDs illuminate for one second; the "Ready" LED will illuminate after 3 seconds. 7 Troubleshooting AC Power is applied to the printer If no error message is displayed, the Printer Door is firmly closed, and the toner cartridge is installed, but the motor does NOT rotate when AC power is applied to the printer: 1 Verify that AC power is present at the input Does the Printer Motor rotate for about 6 seconds ? Yes Is the Front Panel functional ? Yes No 2 3 4 5 power receptacle and that the power cord is firmly inserted into the printer. Verify that FU102 is not open. (See Figure 7-2.) Verify that motor connector J1 is seated into J401 of the DC Controller. (See Figure 7-2.) Verify that the motor is correctly mounted to the printer chassis. If all of these conditions are correct, replace the DC Controller PCA and/or the motor. No If the Control Panel is not functional: 1 Verify that the Control Panel connector J9 is 2 3 4 Is an Error displayed ? No Yes 5 seated into both the Control Panel and the Formatter PCA at J3. (See Figure 7-2.) Verify that the Formatter PCA is firmly seated