Oki B930n - Manual (Page 38)

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Horizontal,
Vertical
Line
Deletions
(there are
areas of print deletions that appear
across the paper; there are areas of
print deletions that form narrow lines)
1. The drum cartridge may not be
installed correctly. 2. The drum
cartridge may be defective or at the
end of its life. 3. The transfer roller
may be defective.
Horizontal Dark
Streaks
(there are black lines that
appear horizontally on the
page) 1. The drum
cartridge may be defective
or at the end of its life. 2. The paper
path may be contaminated with toner.
3. The fuser may be defective.
Repetitive Vertical
Dark Streaks
(there are black lines that
appear vertically on the
page) 1. The paper path
may be contaminated with
toner. 2. The drum cartridge may be
defective or at the end of its life.
3. The fuser may be defective. 4. The
transfer roller may be defective.
Dark Spots or
Marks
(there are dark spots or
marks that appear in a
random pattern on the
page) 1. The paper path
may be contaminated with toner. 2.
The drum cartridge may be defective.
3. The fuser may be defective. 4. The
transfer roller may be defective.
Troubleshooting
Print Problems (cont.)