Epson AcuLaser C4000 Service Manual page 297

EPSON AcuLaser C4000/C4100/C3000
FIP-Noise
Step
Initial setting
Do the following checks show a problem?
• PWBA MCU & HVPS (PL15.1.2)
• HSG Assy Bias (PL11.1.4)
• PHD Assy (PL11.1.3)
• Harness Assy AC SW (PL15.1.11)
• Fuser Assy (PL9.1.1)
• Chute Assy In (PL6.1.1)
• Chute Assy Out (PL7.1.1)
1
• Chute Assy Exit (PL8.1.1)
• Harness Assy LVNC (PL15.2.1)
• Harness Assy Front 1 (PL15.2.7)
• Wire Assy BTR2 (PL6.1.2)
• Wire Assy DTSK (PL6.1.5)
• Wire Assy FSR Earth (PL6.1.20)
• Wire Assy Dup Earth (PL7.1.43)
• Harness Assy FSR2 (PL6.1.9)
• Incorrect mains power supply voltage
External interference
1. Check if there is any electrical equipment such as generators, wireless transmitters and
motors that may generate interference being used within 3 meters of the printer.
2
2. Turn off the power for any electrical equipment that may be generating interference, or
move the printer at least 6 meters away from such equipment.
Does the electrical interference problem still occur?
AC ground
3 Check the AC power supply outlet.
Is the AC power supply outlet positioned correctly and grounded?
PHD Assy (PL11.1.3)
1. Replace the PHD Assy.
4
2. Turn on the power.
Does the electrical interference problem still occur?
Troubleshooting
Check
Level 2 FIP
Treatment
Yes
Repair or replace the applicable
Go to step 2.
part.
Go to step 3. Problem solved.
Ask the customer to repair the
Go to step 4.
AC power supply outlet.
Go to step 5. Problem solved.
Revision F
No
3-281