Epson AcuLaser C4000 Service Manual page 284

EPSON AcuLaser C4000/C4100/C3000
Step
• Harness Assy Front 2 (PL7.1.2)
• Harness Assy TNR (PL12.1.6)
• Harness Assy DRV 1 (PL15.2.2)
• Harness Assy SOS (PL15.2.5)
1
• Harness Assy Front 1 (PL15.2.7)
• Harness Assy OPF Main (PL15.2.8)
• Harness Assy OPFREC (PL4.2.9)
• Harness Assy OPF PLG (PL17.4.2)
Power Cord (PL15.1.9) continuity
2 Check the continuity in Power Cord.
Is there continuity in Power Cord?
AC power supply
3 Measure the AC power supply voltage.
Is the AC power supply voltage within the specifications?
Fuse
4 Check the fuse in the LVPS (PL15.1.10).
Is the fuse blown?
Harness Assy FSR2 (PL6.1.9)
1. Disconnect the P/J162 connector from the LVPS (PL15.1.10).
5 2. Remove the Fuser Assy. (Refer to Ch4-4.2.12.1)
3. Check the insulation between J162-1 <=> J162-3.
Is there a short-circuit between J162-1 <=> J162-3?
Heater
6 Measure the resistance between P232-1 <=> P232-3.
Is the resistance around 10 Ω between P232-1 <=> P232-3?
24V power supply
1. Disconnect the P/J60 connector from the PWB Drive (PL15.1.15).
2. Turn on the I/L Switch of the PWB Drive.
7
3. Turn on the power and measure the following voltage.
J60-1 <=> J60-2
Is there 24V DC between J60-1 <=> J60-2?
Troubleshooting
Check
Level 2 FIP
Treatment
Yes
Repair or replace the applicable
Go to step 2.
part.
Replace the Power Cord
Go to step 3.
(PL15.1.9).
Ask the customer to fix the
Go to step 4.
power supply.
Go to step 5. Go to step 7.
Replace the Harness Assy
Go to step 6.
FSR2 (PL6.1.9).
Replace the LVPS. Replace the Fuser Assy.
(Refer to Ch4-4.2.18.3) (Refer to Ch4-4.2.12.1)
Go to step 8. Go to FIP-DC (Page 5-280).
Revision F
No
3-268