Specifications

1.6 VERTICAL WHITE LINES OR BANDS—1 (DULL OR BLURRED)
- Phenomenon -
Dull or blurred white lines appear on the copy.
- Possible Causes -
1. Dirty or deteriorated charge corona wire.
2. Dirty or deformed grid plate.
3. The inlet seal on the development unit is damp or is contaminated with oil.
- Action -
Is the charge corona wire and/or grid plate dirty?
No Yes
Clean the charge corona wire and/or grid plate.
Is the inlet seal damp or contaminated with oil?
No Yes
Clean the inlet seal with a dry cloth. If the problem is not corrected,
replace the inlet seal plate and the seal as a set.
Is the grid plate deformed?
No Yes
Replace the grid plate.
Replace the charge corona wire.
1 December 1990
6-10