Fip-1.27 Low Density Error - Epson ColorPage EPL-C8000 Service Manual

EPSON EPL-C8000

FIP-1.27 Low Density Error

Step Check point
Perform the preliminary inspection.
Parts to inspect:
1
DISPENSE MOTOR ASSY, DEVE CONTACT ASSY,
Developer 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)
l
Are the outputs normal?
Check: Image on the Drum surface
l
Is the toner image of each color properly developed?
3
NOTE: During printing, turn the printer off when transfer is
assumed to process; and check for Cin50% on the drum
surface visually.
Check: Image on the Drum surface
l
Are the image densities of all colors on the drum low?
4
NOTE: During printing, turn the printer off when transfer is
assumed to process; and check for Cin50% on the drum
surface visually.
Check: Dispense Motor installation
5
l
Is the Dispense Motor properly installed?
Check: Dispense Motor
l
Is the Dispense Motor properly functioning? (Check it
by using the diagnostic tool.)
6
Diag Tool: Digital Output Test
Device Code: 25
Check: DEVE. CONTACT ASSY
l
7
Is the contact surface of the DEVE. CONTACT ASSY
deformed or lodged with any foreign matter?
(To be continued)
Chapter 5 TROUBLESHOOTING
Remedy
Yes
Replace/reinstall the defective part(s).
Check the Controller PWB.
If the problem still occurs, go to step 3.
Go to Step 8.
Go to Step 5.
• With the diagnostic tool, go to step 6.
• Without the diagnostic tool, go to
FIP-2.36 "DISPENSE MOTOR
ASSY is Defective".
If the problem still occurs, go to step 7.
Go to Step 7.
Replace the DEVE. CONTACT ASSY.
No
Go to Step 2.
Go to Step 3.
Go to Step 4.
Go to Step 11.
Install the DISPENSE MOTOR ASSY
properly.
Go to FIP-2.36 "DISPENSE MOTOR
ASSY is Defective".
Go to FIP-2.38 "HVPS is Defective".
If the problem still occurs, go to FIP-
2.19 "ROS ASSY is Defective".
Rev. B
5-41