K117sm7e2
7-23
7. 2. 2. 8 White line (Vertical)
Check the following matters with the Test Pattern No.1 S(0) and No.7 S(0).
If necessary use other Test Patterns.
Cause Checking
order
Checking Result Treatment
Image Corona 1 Is there something like filament on the
Grid Plate, which is contacted to the
Drum?
Yes Remove it.
Dirt of the LED
Head
2 Can you fix the problem if you clean the
LED Head?
Yes OK
Transfer/Separation
Corona
3 Is there any foreign substance or dirt on
the Transfer/Separation Corona?
Yes Clean the Transfer /
Separation Corona.
Developer Unit 4 Is the Developer Roller evenly covered
with the toner?
No Check whether or not there
is damage or foreign
substance on the Regulation
Roller.
Entrance of Fuser
Unit
5 Is there any foreign substance or dirt
around the entrance area of the Fuser
Unit?
Yes Clean it off
Photoconductive
Drum
6 Is there any damage on the Drum,
which runs to the direction of Drum
rotation.
Yes Clean the Photoconductive
Drum.
Replace the Process Unit if it
is damaged. Be sure to find
the cause of the damage.
To Next Page
Loading...
