Fip-1.21 Main Fuser Assy Overheat Error - Epson ColorPage EPL-C8200 Service Manual

EPSON ColorPage EPL-C8200

FIP-1.21 MAIN FUSER ASSY Overheat Error

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

3
Is the FUSER CONNECTOR securely connected when
the FUSER ASSY is installed?
Check: TEMP. SENSOR ASSY

4
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.

5
Do the H/R HEATER and P/R HEATER come on when
the printer is turned on?

Does the problem occur while the FUSER is warming
6
up?
Check: MAIN HARNESS ASSY

7
Does the MAIN HARNESS ASSY have proper
continuity at J21<=>J32?
Check: LVPS

8
Is the voltage level correct at the pins below?
- P21-3PIN<=> P21-2PIN: 4.5VDC
Check: HATER ROD for ON signal

Is the voltage level correct depending on the conditions
below?
9
- Pins: P/J32-12PIN<=>P/J32-13PIN
- FUSER is warming-up: 0VDC
- Warming up is completing: 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 Step 4.
Go to FIP-2.29 "TEMP. SENSOR
ASSEMBLY is Defective".
Go to Step 6.
Go to FIP-2.29 "TEMP. SENSOR
ASSEMBLY is Defective".
Go to Step 8.
Go to Step 9.
Replace the LVPS.
Remedy
No
Go to Step 2.
Go to Step 3.
Check the FUSER CONNECTOR.
Go to Step 5.
Replace the H/R HEATER, P/R
HEATER.
Go to Step 7.
Replace the MAIN HARNESS ASSY.
Replace the LVPS.
Replace the MCU PWB.
Revision A
5-38