Epson AcuLaser C4000 Service Manual page 314

EPSON AcuLaser C4000/C4100/C3000
FIP-5 Tray 3 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.
Sensor No Paper functioning normally?
Power supply to Sensor No Paper (PL17.3.4)
1. Disconnect the P/J83 connector from the PWBA Feeder (PL17.4.1).
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2. Measure the voltage between P83-5 <=> P83-6.
Is there 3.3V DC between P83-5 <=> P83-6?
Harness Assy Feeder 3T (PL17.4.4) and Harness Assy NPRSJ (PL17.4.11) continuity
1. Disconnect the P/J83 connector from the PWBA Feeder (PL17.4.1).
2. Disconnect the P/J832 connector from the Sensor No Paper (Tray 3). (Refer to Ch4-
4.2.20.36)
3. Check the continuity for the following lines.
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J83-5 <=> J8220-3/P8220-1 <=> J832-3
J83-6 <=> J8220-2/P8220-2 <=> J832-2
J83-7 <=> J8220-1/P8220-3 <=> J832-1
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).
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3. While operating the Link Actuator (PL17.3.6) manually, measure the following voltage.
P/J83-7 <=> P/J83-6
Is the voltage between P/J83-7 <=> P/J83-6 +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
3-298