Fip-1.48 "Front Cover Open - Epson ColorPage EPL-C8000 Service Manual

EPSON EPL-C8000

FIP-1.48 "FRONT COVER OPEN"

Step Check point
Perform the preliminary inspection.
Parts to inspect:
1
FRONT COVER SWITCH R, FRONT COVER SWITCH L,
MCU PWB
Isolation: Engine or Controller?
Run the Engine test print or diagnostic test print.
2
(10 sheets for each of single and continuous print)
l
Are the outputs normal?
Check: FRONT COVER SWITCH L for its pushing
motion
l
Is the actuator in the FRONT COVER ASSY functioning
properly as follows?
3
- FRONT COVER ASSY is closed:
Turns on the FRONT COVER SWITCH L.
- FRONT COVER ASSY is open:
Turns off the FRONT COVER SWITCH L.
Check: FRONT COVER SWITCH L
l
Is the FRONT COVER SWITCH L properly functioning?
4
Diag Tool: Digital Input Test
Device code: 27
Check:
Power supply to the FRONT COVER SWITCH L
5
l
Is the voltage level correct at the pins below?
- P19-2PIN<=>P19-3PIN: 5VDC
Check: FRONT COVER for the detection signal
l
Is the voltage level correct depending on the conditions
below?
6
- Pins: P19-2PIN<=>P19-3PIN
- FRONT COVER ASSY is closed: 0VDC
- FRONT COVER ASSY is open: 5VDC
Check: MSI HARNESS ASSY electrical continuity
l
Does the MSI HARNESS ASSY have proper continuity
7
at the pins below?
- J19<=>P197
Chapter 5 TROUBLESHOOTING
Remedy
Yes
Replace/reinstall the defective part(s).
Check the Controller PWB.
If the problem still occurs, go to step 3.
• With the diagnostic tool, go to step 4.
• Without the diagnostic tool, go to
step 5.
Replace the MCU PWB.
Go to Step 6.
Replace the MCU PWB.
Replace the FRONT COVER SWITCH
L.
No
Go to Step 2.
Go to Step 3.
Replace the defective part.
Go to Step 5.
Go to FIP-2.1 "LVPS 5VDC is
Defective".
Go to Step 7.
Replace the MAIN HARNESS ASSY.
Rev. B
5-59