Fip-1.26 High Density Error - Epson ColorPage EPL-C8000 Service Manual

EPSON EPL-C8000

FIP-1.26 High Density Error

Step Check point
Perform the preliminary inspection.
Parts to inspect:
1
DEVE.CONTACT ASSY, ADC SENSOR 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)
l
Are the outputs normal?
Check: DEVE. CONTACT ASSY
l
3
Is the contact surface of the DEVE. CONTACT ASSY
bent, deformed, or lodged with any foreign matter?
Check: ADC Sensor surface
l
4
Is the ADC Sensor surface smeared or lodged with any
foreign matter?
Check: ADC Sensor
l
Is the ADC Sensor properly functioning? (Check it by
using the diagnostic tool.)
5
Diag Tool: Digital Input Test
Device Code: 18, 33
Check: ADC Solenoid
l
Is the ADC Solenoid properly functioning? (Check it by
using the diagnostic tool.)
6
Diag Tool: Digital Output Test
Device Code: 36
Check: MCU PWB replacement
7 Replace the MCU PWB.
l
Does the problem still occur?
Chapter 5 TROUBLESHOOTING
Remedy
Yes
Replace/reinstall the defective part(s).
Check the Controller PWB.
If the problem still occurs, go to step 3.
Replace the DEVE.CONTACT ASSY.
• With the diagnostic tool, go to step 6.
• Without the diagnostic tool, go to
FIP-2.21 "ADC SOLENOID is
Defective".
Replace the MCU PWB.
Go to Step 7.
Go to FIP-2.38 "HVPS is Defective".
No
Go to Step 2.
Go to Step 3.
Go to FIP-2.38 "HVPS is Defective"
If the problem still occurs, go to FIP-
2.19 "ROS ASSY is Defective".
• With the diagnostic tool, go to step 5.
• Without the diagnostic tool, go to
FIP-2.20 "ADC SENSOR is
Defective".
Go to FIP-2.20 "ADC SENSOR is
Defective".
Go to FIP-2.21 "ADC SOLENOID is
Defective".
Problem solved.
Rev. B
5-40