Phaser 6130 Color Laser Printer Service Manual 4-49General TroubleshootingElectrical NoiseThere is a variable pitch sound coming from the printer. Electrical noise canbe either noise in the electrical lines or static in electromagneticcommunications.Initial Actions■ Cycle printer power.■ If the problem persists, follow the procedure below.Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack Map References■ HVPS, PL4.1.19■ Transfer Unit, PL6.1.7■ Imaging Unit, PL4.1.21Troubleshooting Procedure TableStep Actions and Questions Yes No1 Check external noise.1. Are there other electrical applianceswithin 3 meters of the printer?2. Turn the electrical appliances Off orrelocate the printer at least 6 meters awayfrom other electrical appliances.Does the error still occur?Go to step 2. Complete2 Check the AC groundIs AC power supply outlet wired andgrounded appropriately?Go to step 3. Request theclient to fixAC powersupply outlet.3 1. Open the Front Cover.2. Inspect the four Transfer Unit HVconnections.Are the four terminals on the Transfer Unit,and the four springs on the frame(PL4.1.11, 12, 13 and 14) dirty and/ordeformed?Clean orreplace theTransfer Unit(page 8-41)or clean thespring(s).Go to step 4.4 Check the Imaging Unit connection1. Remove the Imaging Unit.2. Inspect the five Imaging Unit HVconnections.Are the five HV terminals on the ImagingUnit, and five springs on the frame(PL4.1.10 and PL4.1.15 to 18) dirty and/ordeformed?Clean and/orreplace theImaging Unit(page 8-8) orclean thespring(s).Go to step 5.
