Epson AcuLaser C4000 Service Manual page 312

EPSON AcuLaser C4000/C4100/C3000
FIP-4 Tray 2 Paper Empty
Step
Initial setting
Do the following checks show a problem?
1 • Sensor No Paper (PL17.3.4) installation
• Actuator No Paper (PL17.3.5) installation
• Link Actuator (PL17.3.6) installed
2 Does the error occur even when paper is added?
Link Actuator (PL17.3.6), Actuator No Paper (PL17.3.5)
3 Operate the Link Actuator manually and check.
Does the Link Actuator and Actuator No Paper move smoothly?
Sensor No Paper (PL17.3.4) check
4 Use the Sensor No Paper diagnosis tool to carry out a Digital Input Test.
Is the Sensor No Paper functioning normally?
Power supply to Sensor No Paper (PL17.3.4)
1. Disconnect the P/J82 connector from the PWBA Feeder (PL17.4.1).
5
2. Measure the voltage between P82-5 <=> P82-6.
Is there 3.3V DC between P82-5 <=> P82-6?
Harness Assy Feeder 2T (PL17.4.3) and Harness Assy NPRSJ (PL17.4.11) continuity
1. Disconnect the P/J82 connector from the PWBA Feeder (PL17.4.1).
2. Disconnect the P/J822 connector from the Sensor No Paper (Tray 2) (PL17.3.4). (Refer to
Ch4-4.2.20.36)
3. Check the continuity between the following lines.
6
J82-5 <=> J8220-3/P8220-1 <=> J822-3
J82-6 <=> J8220-2/P8220-2 <=> J822-2
J82-7 <=> J8220-1/P8220-3 <=> J822-1
Is there continuity between each terminal?
PWBA Feeder (PL17.4.1) sensor signal check
1. Disconnect the P/J140 connector from the PWBA MCU & HVPS. (Refer to Ch4-4.2.18.1)
2. Close the I/L Switch of the PWB Drive (PL15.1.15).
7
3. While operating the Link Actuator (PL17.3.6) manually, measure the following voltage.
P/J82-7 <=> P/J82-6
Is the voltage between P/J82-7 <=> P/J82-6 +3.3V DC at the no paper condition, and 0V
DC when paper is present?
Troubleshooting
Check
Level 2 FIP –Large Capacity Paper Unit–
Treatment
Yes
Reinstall applicable parts Go to step 2.
Go to step 3. End of procedure
Replace the part that is causing
• With the tool: Go to step 4.
the problem.
• Without the tool: Go to step 5.
(Refer to Ch4-4.2.20.35)
Replace the PWBA MCU &
Go to step 5.
HVPS. (Refer to Ch4-4.2.18.1)
Go to step 6. Go to step 10.
Replace any Harness Assy with
Go to step 7.
no continuity.
Replace the Sensor No Paper
Go to step 8.
(Refer to Ch4-4.2.20.36).
Revision F
No
3-296