Epson ColorPage EPL-C8000 Service Manual page 376

EPSON EPL-C8000
(Continued)
FIP-1.27 "Low Density Error"
Step Check point
Check: ADC Sensor surface
l
8
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.)
9
Diag Tool: Digital Output Test
Device Code: 18,33
Check: ADC Solenoid
l
Is the ADC Solenoid properly functioning?
10
Diag Tool: Digital Output Test
Device Code: 36
Check: Developer Assy replacement
l
11
Does the problem still occur when the Developer Assy
corresponding to the color is replaced?
Chapter 5 TROUBLESHOOTING
Remedy
Yes
• With the diagnostic tool, go to step
10.
• Without the diagnostic tool, go to
FIP-2.21 "ADC SOLENOID is
Defective".
Replace the MCU PWB.
Replace the MCU PWB.
Replace the MCU PWB.
No
• With the diagnostic tool, go to step 9.
• 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
5-42