Epson AcuLaser C4000 Service Manual page 272

EPSON AcuLaser C4000/C4100/C3000
Item
BTR Assy (PL9.1.2)
3 Check the BTR Assy roller.
Is the BTR Assy roller dirty or worn?
Periodicity check
4
Does the problem show periodicity?
Fuser Assy (PL9.1.1)
1. Remove the Fuser Assy. (Refer to Ch4-4.2.12.1)
Wait for the Fuser Assy to cool down before starting.
W A R N I N G
5
2. Check if there is any damage, dirt or foreign particles on the Belt Assy or Heat Roll.
Is the Belt Assy or Heat Roll dirty or damaged?
Drive Assy Deve (PL14.1.1)
1. Replace the Drive Assy Deve. (Refer to Ch4-4.2.17.2)
6
2. Reprint the problem image.
Does the problem still occur?
Drive Assy Main (PL14.1.2)
1. Replace the Drive Assy Main. (Refer to Ch4-4.2.17.2)
7
2. Reprint the problem image.
Does the problem still occur?
PHD Assy (PL11.1.3) connection
8 Check the connections of each circuit in the PHD Assy.
Are all circuits in the PHD Assy connected correctly?
Drum grounding
9 Check the Drum grounding circuit.
Is the Drum grounding normal?
Troubleshooting
Check
Level 2 FIP
Yes
Replace the BTR Assy.
Go to step 4.
(Refer to Ch4-4.2.12.2)
Replace the applicable parts. Go to step 5.
Replace the Fuser Assy.
Go to step 6.
(Refer to Ch4-4.2.12.1)
Go to step 7. Problem solved.
Go to step 8. Problem solved.
Go to step 9. Replace or repair parts.
Replace the PWBA MCU & Repair, clean or replace the
HVPS. (Refer to Ch4-4.2.18.1) malfunctioning part.
Revision F
No
3-256