Epson AcuLaser C4000 Service Manual page 198

EPSON AcuLaser C4000/C4100/C3000
Step
Power supply to Toner Motor (K) of Holder Assy (K) (PL12.2.8)
1. Remove the PHD Assy (PL11.1.3).
8 2. Turn on the Interlock Switch of the PWB Drive (PL15.1.15).
3. Measure the voltage between P/J51-24 <=> P/J60-2.
Is there +24V DC between P/J51-24 <=> P/J60-2.
Harness Assy TNR (PL12.1.6) continuity check
1. Disconnect the P/J514 connector from the Holder Assy (K) (PL12.2.8).
2. Disconnect the P/J51 connector from the PWB Drive (PL15.1.15).
3. Check the continuity for the following lines.
J514-1 <=> J51-28
9
J514-2 <=> J51-27
J514-3 <=> J51-26
J514-4 <=> J51-25
J514-5 <=> J51-24
Is the continuity between J514 <=> J51 normal?
Toner Motor check
1. Replace the Holder Toner Assy (K). (Refer to Ch4-4.2.15.5)
10
2. Turn On the power.
Does an error occur even when a new Toner Motor is installed?
Harness Assy Drive 1 (PL15.2.2) continuity check
Check the following. Are the continuities normal?
J11-37 <=> J41-4
11 J11-38 <=> J41-3
J11-39 <=> J41-2
J11-40 <=> J41-1
Is there continuity in all lines?
PWB Drive (PL15.1.15) continuity
1. Disconnect the P/J60 connector from the PWB Drive.
12
2. Measure the voltage between J60-1 <=> J60-2.
Is there 24V DC between J60-1 <=> J60-2?
Harness Assy 24V (PL15.2.6) continuity
1. Disconnect the P/J163 connector from the LVPS (PL15.1.10).
13
2. Measure the voltage between P163-1 <=> P163-2.
Is there 24V DC between P163-1 <=> P163-2?
Troubleshooting
Check
Level 2 FIP
Treatment
Yes
Go to step 9. Go to step 12.
Replace the Harness Assy TNR
Go to step 10.
(PL12.1.6).
Go to step 11. End of procedure
Replace the PWB Drive (Refer
to Ch4-4.2.18.5). If this does not
Replace the Harness Assy Drive
solve the problem, replace the
1 (PL15.2.2).
PWBA MCU & HVPS.
(Refer to Ch4-4.2.18.1)
Replace the PWB Drive. (Refer
Go to step 13.
to Ch4-4.2.18.5)
Replace the Harness Assy 24V
Go to FIP-DC (Page 5-280).
(PL15.2.6).
Revision F
No
3-182