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EPSON EPL-6200/EPL-6200L Revision A
Troubleshooting Troubleshooting for Print Quality Problems 126
3.6.4 Low Image Density 3.6.5 Foggy Background
Description of the problem:
Image density is too light as a whole.
Parts that may be the source of this error
Developer Cartridge (p.135)
Photoconductor Unit (p.135)
Transfer Roller (p.136)
High Voltage Unit (HV1) (p.151)
Main Board Assy (C533/C534 Main)
(p.146)
Step Action and Question Yes No
1
Paper check
♦Is the paper moist?
Set the paper taken
from a newly
opened package.
Go to Step 2
2
Toner remaining
♦Is there toner in the Developer Cartridge
(toner cartridge)?
Go to Step 3
Replace the
Developer
Cartridge.
3
Defective OPC drum (life has expired)
Replace the Photoconductor Unit.
♦Does the same error recur?
Go to Step 4
Replace the
Photoconductor
Unit.
4
Defective development bias 1
Replace the high voltage unit.
♦Does the same error recur?
Go to Step 5
Replace the
high voltage
unit (HV1).
5
Defective development bias 2
Replace the Main Board Assy.
♦Does the same error recur?
Go to Step 6
Replace Main
Board.
6
Improper transfer
Replace the transfer roller.
♦Does the same error recur?
Replace the
transfer roller.
Description of the problem:
Toner is present in some unexpected areas or
over the whole page. Such areas appear
fogged.
Parts that may be the source of this error
Photoconductor Unit (p.135)
High Voltage Unit (HV1) (p.151)
Main Board Assy (C533/C534 Main)
(p.146)
Step Action and Question Yes No
1
OPC drum
♦Is the OPC drum scratched or seamed?
Replace the
Photoconductor
Unit.
Go to Step 2
2
Development bias contact terminal
♦Is the development bias contact terminal in contact
properly?
Go to Step 3
Clean the
contact
terminal and
check the
terminal
location.
3
PH window soiled
♦Is the surface of the PH window soiled?
Clean Go to Step 4
4
♦Was the problem solved after any of the Steps
above?
Replace the
high voltage
unit (HV1).
Replace the
Main Board
Assy.