Epson AcuLaser C4000 Service Manual page 207

EPSON AcuLaser C4000/C4100/C3000
FIP-31 Yellow Toner Near Empty
Step
Initial setting
Do the following checks show a problem?
1 • Sensor Toner Low (PL12.2.9) installation
• Toner Cartridge installation
• Toner Motor installation
Toner Cartridge (Y) (PL12.1.1) check
1. Replace the Toner Cartridge (Y).
2
2. Turn On the power.
Does an error occur even when a new Cartridge is installed?
Sensor Toner Low (Y) (PL12.2.9) signal check
Measure the following voltages at the PWB Drive (PL15.1.15) connector.
3
P/J51-16 <=> P/J51-15
Is the resistance + 0.2V DC between P/J51-16 <=> P/J51-15?
Harness Assy TNR (PL12.1.6) continuity check
1. Disconnect the P/J441 connector from the Sensor Toner Low (Y).
2. Disconnect the P/J51 connector from the PWB Drive (PL15.1.15).
4 3. Check the continuity for the following lines.
J441-2 <=> J51-16
J441-3 <=> J51-15
Is the continuity between J441 <=> J51 normal?
Sensor Toner Low (PL12.2.9) check
1. Replace the Sensor Toner Low (Y). (Refer to Ch4-4.2.15.7)
5
2. Turn On the power.
Does an error occur even when a new Sensor Toner Low is installed?
Harness Assy DRV 2 (PL15.2.3) continuity check
1. Disconnect the P/J42 connector from the PWB Drive (PL15.1.15).
2. Disconnect the P/J12 connector from the PWBA MCU & HVPS. (Refer to Ch4-4.2.18.1)
6 3. Check the continuity for the following lines.
J12-23 <=> J42-8
J12-3 <=> J42-28
Is there continuity in all lines?
Troubleshooting
Check
Level 2 FIP
Treatment
Yes
Reinstall applicable parts Go to step 2.
Go to step 3. End of procedure
Go to step 6. Go to step 4.
Replace the Harness Assy TNR
Go to step 5.
(PL12.1.6).
Go to step 6. End of procedure
• With the tool: Go to step 7.
Replace the Harness Assy DRV 2
(PL15.2.3).
• Without the tool: Go to step 8.
Revision F
No
3-191