28 February 1989
1.7 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 or burrs on the charge or
White Line
transfer casings.
2.Dirty or deformed grid.
3.The inlet seal on the development unit is damp or is contaminated with oil.
- Actions -
1.Clean the charge corona wire and/or transfer corona wire.
Check the charge and transfer casings for burrs or other defects.
Clean the charge corona cleaner, or, if seriously deformed (heat), replace
the cleaner.
2.Clean or replace the grid.
3.Replace the black or color development unit inlet seal.
NOTE: A deteriorated charge wire may also cause thin, distinct white lines.
12-11 |
ACEC
RICOH
