Fip-1.51 "Paper Unit Open - Epson ColorPage EPL-C8200 Service Manual

EPSON ColorPage EPL-C8200

FIP-1.51 "PAPER UNIT OPEN"

Step Check point
Perform the preliminary inspection.
1 Parts to inspect:
MAIN P/H ASSY, MAIN HARNESS ASSY, 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)

Are the outputs normal?
Check: MAIN P/H ASSY insertion
3
Is the MAIN P/H ASSY properly inserted?
Check: MAIN P/H ASSY detection

Is the MAIN P/H ASSY detection mechanism properly
4 functioning?
Diag Tool: Digital Input Test
Device code: 20
Check: Power supply to the MAIN P/H ASSY

5 Is the voltage level correct at the pins below?
- P20-30PIN<=>P20-31PIN: 5VDC
Check: MAIN P/H ASSY detection signal

Is the voltage level correct depending on the conditions
below?
6
- Pins: P20-30PIN<=>P20-31PIN
- MAIN P/H ASSY is installed: 0VDC
- MAIN P/H ASSY is not installed: 5VDC
Check: P/H HARNESS ASSY electrical continuity

Does the P/H HARNESS ASSY have proper continuity
7
at the pins below?
- J20<=>P91
Chapter 5 Troubleshooting
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 MAIN P/H ASSY.
Remedy
No
Go to Step 2.
Go to Step 3.
Replace the interfering part.
Go to Step 5.
Go to FIP-2.1 "LVPS 5VDC is
Defective".
Go to Step 7.
Replace the P/H HARNESS ASSY.
Revision A
5-63