Oki B930dn User Manual page 53

SYMPTOM REASON/ACTION
The whole piece of The drum/toner cartridge is defective or damaged. Replace with a new
paper is printed drum/toner cartridge.
black.
See "Drum unit and toner cartridge" on page 55.
This may be due to breakdown of high voltage power. Contact service.
Printable data from computer may be corrupted. Print a menu map. If
the menu map prints correctly, check the interface cable between the
computer and the printer, and the application software. If connections
appear normal, contact service.
Nothing is printed. Multiple sheets of paper are fed simultaneously. Fan the paper well and
reload.
The drum unit/toner cartridge is defective/damaged or there is no more
toner inside the cartridge. Replace with a new drum unit/toner
cartridge.
See "Drum unit and toner cartridge" on page 55.
If a new drum unit is installed, the yellow sealing tape is still on the
unit. Remove the tape.
Printable data may have not been received from the computer. Print a
menu map, see
prints correctly, check the interface cable between the computer and
the printer, and the application software.
If the menu map is blank, replace the drum unit and then reprint the
menu map. If the menu map still is blank, contact service.
Spots of missing This may be due to breakdown of high voltage power. Contact service.
text.
The paper is damp or in poor condition. Replace with paper from a new
ream.
The paper used is not suitable. Load the correct type of paper.
See "Usable Paper" in the Reference Guide.
The drum unit may be defective or at the end of its life. Replace the
drum unit.
Text is blurred. The paper used is not suitable. Load the correct type of paper.
See "Usable Paper" in the Reference Guide.
The paper is damp or in poor condition. Replace with paper from a new
ream.
The drum unit may be defective or at the end of its life. Replace the
drum unit.
Missing characters The drum unit /toner cartridge is defective/damaged or there is no
or horizontal line more toner inside the cartridge. Replace with a new drum unit/toner
deletions cartridge.
throughout the
The transfer roller may be defective. Replace the transfer roller (in the
length of the paper.
maintenance kit).
Vertical line
deletions that form
The paper may be defective with creases, folds etc. Replace with paper
narrow lines.
from a new ream.
Text or images are The paper tray guides are not set in the correct positions. Set the
printed at an angle. length guide and the right width guide in the correct positions.
See "Loading paper" on page 28.
"Printing a menu map" on page
Troubleshooting > 53
17. If the menu map