Fip-1.16 Main Fuser Assy Related Error - Epson ColorPage EPL-C8200 Service Manual

EPSON ColorPage EPL-C8200

FIP-1.16 MAIN FUSER ASSY Related Error

Step Check point
Perform the preliminary inspection.
Parts to inspect:
FUSER ASSY, MCU PWB, FUSER HARNESS ASSY,
1
FUSER CONNECTOR, FUSER ASSY, TEMP.
SENSOR ASSY, H/R HEATER,
P/R HEATER, LVPS, 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: TEMP. SENSOR ASSY

3
Does the problem occur when the printer is turned
on?
Check: H/R HEATER, P/R HEATER
NOTE: Make sure the FUSER ASSY is cool before
4
starting this operation.

Do the both H/R HEATER and P/R HEATER come
on when the printer is turned on?
Does the problem occur while the FUSER is warming
5
up?
Check: MAIN HARNESS ASSY

Does the MAIN HARNESS ASSY have proper
6
continuity at the point below?
- J21<=>J32
Check: LVPS

7 Is the voltage level correct at the pins below?
- P21-3PIN<=> P21-2PIN: 4.5VDC
Check: HEATER ROD for ON signal

Is the voltage level correct depending on the
conditions below?
8
- Pins: P/J32-12PIN<=>P/J32-13PIN
- During FUSER's warming-up: 0VDC
- At completion of FUSER's warming-up:
Changes from 0VDC to 4.5VDC.
Chapter 5 Troubleshooting
Yes
Replace/reinstall the defective part(s).
Check the Controller PWB.
If the problem still occurs, go to step 3.
Go to FIP-2.29 "TEMP. SENSOR
ASSEMBLY is Defective".
Go to Step 5.
Go to FIP-2.29 "TEMP. SENSOR
ASSEMBLY is Defective".
Go to Step 7.
Go to Step 8.
Replace the LVPS.
Remedy
No
Go to Step 2.
Go to Step 3.
Go to Step 4.
Replace the H/R HEATER/P/R HEATER.
Go to Step 6.
Replace the MAIN HARNESS ASSY.
Replace the LVPS.
Replace the MCU PWB.
Revision A
5-33