Minolta EP5000 General, Mechanical/Electrical page 388

Interleaf EP5000/EP4000 TROUBLESHOOTING
97.04.01
1149SBT050304A
4) Foggy background
Cause Step
Cleaning failure
1
Optical failure
2
PC Drum failure
3
4
Developing failure
5
6
Main Erase Lamp
7
failure
8
AIDC Sensor failure
9
10
Check Item Result
Is the Cleaning Blade dirty
with foreign matter, paper
dust, etc. or is it scratched?
Are the mirrors and lenses
dirty?
Is the PC Drum dirty with
foreign matter, etc.?
Is the PC Drum properly
grounded?
Is the Sleeve Roller abnor-
mally dirty?
Is the developing bias con-
tact normal?
Does the Main Erase Lamp
light up properly?
Is the Main Erase Lamp
dirty?
Is the AIDC Sensor clean or
installed properly?
Is the AIDC halftone pattern
dirty?
T-113
Action
Change the Cleaning
YES Blade.
Clean the mirrors and
YES
lenses.
Clean or replace the PC
YES Drum. Change the Cleaning
Blade if necessary.
Clean or change the PC
NO
Drum Ground Plate.
Clean the Sleeve Roller.
Check the Developer Scat-
YES
tering Prevention Seal to
see if it is deformed or dirty.
Clean or change the devel-
NO
oping bias contact.
Replace the Main Erase
NO
Lamp.
Clean the Main Erase
YES
Lamp.
Clean or reinstall the AIDC
NO
Sensor and execute F5.
Using care not to scratch,
wipe the pattern with a dry
YES
soft cloth and run F5.