Oki B6500 Guide: User's, B6500 (English) - Page 104

When the Print Quality is Poor, following table to rectify the problem.

Page 104 highlights

When the Print Quality is Poor When the print quality is poor, select the closest symptom from the following table to rectify the problem. If the print quality does not improve after carrying out the appropriate action, contact service. Symptom Reason/Action Printing is light. (faded, blurred). The paper is damp. Replace with paper from a new ream. " Loading Paper" (P. 40) The drum/toner cartridge is defective/damaged or there is no more toner inside the cartridge. Replace with a new drum/ toner cartridge. " Replacing the Drum/Toner Cartridge" (P. 118) The Toner Saving feature is on. Uncheck the [Toner Saving] checkbox on the [Graphics] tab of the printer driver. Online Help for the printer driver Levers on both sides of the fuser unit are raised. Open cover B of this printer and push down the levers at both ends of the fuser unit. Black spots or streaks are printed. The drum/toner cartridge is defective or damaged. Replace with a new drum/toner cartridge. " Replacing the Drum/Toner Cartridge" (P. 118) B6500 User's Guide> 104

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B6500 User’s Guide> 104
When the Print Quality is Poor
When the print quality is poor, select the closest symptom from the
following table to rectify the problem.
If the print quality does not improve after carrying out the
appropriate action, contact service.
Symptom
Reason/Action
Printing is light.
(faded, blurred).
The paper is damp. Replace with paper from a new ream.
“ Loading Paper” (P. 40)
The drum/toner cartridge is defective/damaged or there is no
more toner inside the cartridge. Replace with a new drum/
toner cartridge.
“ Replacing the Drum/Toner Cartridge” (P. 118)
The Toner Saving feature is on. Uncheck the [Toner Saving]
checkbox on the [Graphics] tab of the printer driver.
Online Help for the printer driver
Levers on both sides of the fuser unit are raised. Open cover B
of this printer and push down the levers at both ends of the
fuser unit.
Black spots or
streaks are
printed.
The drum/toner cartridge is defective or damaged. Replace
with a new drum/toner cartridge.
“ Replacing the Drum/Toner Cartridge” (P. 118)