Low Image Density - Epson ColorPage EPL-C8200 Service Manual

EPSON ColorPage EPL-C8200

1. Low image density

Phenomenon: Overall Image density is lower than normally.
Perform the preliminary inspection.
Parts to inspect:
Toner Cartridge, DRUM CARTRIDGE, HVPS, ROS ASSY, MCU PWB
Item Check Points
Toner Cartridge for its toner level

1
Does the Toner Cartridge have enough toner?
Laser beam path condition

Is there any foreign matter or smear along the
2
laser beam transmission path between the
ROS ASSEMBLY and the Drum?
Improper Charging/Development
During the image transfer, turn the printer off and
examine the toner image on the drum surface
3
(point before the transfer) visually.

Is the toner image on the drum developed
properly?
Improper 1st transfer
During the image transfer, turn the printer off and
examine the image on the TRANSFER BELT
4
ASSY visually.

Is the image on the drum properly transferred
to the TRANSFER BELT ASSY?
Improper 2nd transfer
During the image transfer, turn the printer off and
5
examine the image on the paper visually.

Is the image on the TRANSFER BELT ASSY
properly transferred to the paper?
DRUM CARTRIDGE malfunction
6
Replace the DRUM CARTRIDGE with a new one.

Has the problem been solved?
Chapter 5 Troubleshooting
Remedy (When abnormal)
Replace the Toner Cartridge.
Remove the foreign matter / smear
along the laser beam transmission path
between the ROS ASSEMBLY and the
DRUM.
Refer to "FIP-2.38 "HVPS is Defective".
Refer to "FIP-2.38 "HVPS is Defective".
Refer to "FIP-2.38 "HVPS is Defective".
Replace the DRUM CARTRIDGE.
Revision A
SER576X
5-112