Epson ColorPage EPL-C8000 Service Manual page 422

EPSON EPL-C8000
FIP-2.22 CARTRIDGE SENSOR is Defective
Step Check point
Perform the preliminary inspection.
Parts to inspect:
1
CARTRIDGE, FUSER CONNECTOR, FUSER HARNESS
ASSY, MCU PWB
Check: Power supply to the CARTRIDGE SENSOR
l
2 Is the voltage level correct at the pins below?
- P17-6PIN<=>P17-4PIN: 5VDC
Check:
Power supply to the CARTRIDGE detection signal
3
l
Is the voltage level correct at the pins below?
- P17-5PIN<=>P17-4PIN: 5VDC
Check: CARTRIDGE detection signal
l
Is the voltage level correct depending on the conditions
below?
4
- Pins: P/J17-5PIN<=>P/J17-4PIN
- Passed condition (cartridge is installed): 0VDC
- Blocked condition (cartridge is not installed): 5VDC
Check: CART. SENSOR HARNESS electrical continuity
l
Does the CART. SENSOR HARNESS have proper
5
continuity at the pins below?
- J168<=>P89
Check: EXIT HARNESS electrical continuity
l
Does the EXIT HARNESS have proper continuity at the
6
pins below?
- J89<=>J161
Check: MAIN HARNESS ASSY electrical continuity
l
Does the MAIN HARNESS ASSY have proper
7
continuity at the pins below?
- J161<=>J17
Chapter 5 TROUBLESHOOTING
Remedy
Yes
Replace/reinstall the defective part(s).
Go to Step 3.
Go to Step 4.
Replace the MCU PWB.
Go to Step 6.
Go to Step 7.
Replace the MCU PWB.
No
Go to Step 2.
Go to FIP-2.1 "LVPS 5VDC is
Defective".
Replace the MCU PWB.
Go to Step 5.
Replace the CART. SENSOR H-ASSY.
Replace the EXIT HARNESS.
Replace the MAIN HARNESS ASSY.
Rev. B
5-88