7.Troubles
A. Typical faulty images
7.3.9 Blank copy , Black copy
Blank copy
B. Troubleshooting procedure
Step
Section
Check item
1
Image check
A blank copy occurs.
A black copy occurs
2
Imaging unit
Coupling of imaging unit
mechanism is installed
properly.
3
The OPC drum charge c
voltage contact of OPC d
ground contact of the im
unit is connected proper
4
High voltage unit
Connector is connected
properly.
5
M i
t ll
C
t
i
t d
5
Main controller
Connector is connected
properly
6
The problem has been
eliminated through the c
step 5.
Service Manual
7-1
shooting
Black copy
Result
Action
Yes
Check LSU connector for
proper connection.
Yes
Check HVPS connector for
proper connection, especially,
Corona Charger and Grid
Voltage
t drive
No
Check and correct drive
transmitting coupling. Change
imaging unit.
corona
drum
aging
rly.
No
Check, clean, or correct the
contact.
No
Reconnect.
N
R
t th
bl
No
Reconnect the cable
between video control board
and engine control board
heck of
No
Change high voltage unit.
Change printer control
board
Change LSU.
SAMSUNG ELECTRONICS
19
To be continued on next page…
Содержание SCX-82x0 series
Страница 13: ...10 2 Abbreviations 10 4 ...
Страница 112: ...2 Product Description SAMSUNG ELECTRONICS Service Manual 2 94 ...
Страница 378: ...8 System 8 1 Engine 1 8 System Diagram 8 1 Engine 1 Service Manual 8 Diagram SAMSUNG ELECTRONICS 1 ...
Страница 379: ...8 System 8 2 Engine 2 8 2 Engine 2 Service Manual 8 Diagram SAMSUNG ELECTRONICS 2 ...
Страница 380: ...8 System 8 3 Engine 3 8 3 Engine 3 Service Manual 8 Diagram SAMSUNG ELECTRONICS 3 ...
Страница 381: ...8 System 8 4 Scan DADF 8 4 Scan DADF Service Manual 8 Diagram SAMSUNG ELECTRONICS 4 ...
Страница 382: ...8 System 8 5 Heater Fuse 8 5 Heater Fuse Service Manual 8 Diagram SAMSUNG ELECTRONICS 5 ...